ATI SEC-Einreichungen - ATI Inc.- Jahresbericht, Proxy Statement, Prospekt

Basisstatistiken

LEI	ZW1LRE7C3H17O2ZN9B45
CIK	1018963

SEC Filings

All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to ATI Inc.

SEC Filings (Chronological Order)

Auf dieser Seite finden Sie eine vollständige, chronologische Liste der SEC-Einreichungen, mit Ausnahme der Eigentumseinreichungen, die wir an anderer Stelle bereitstellen.

June 3, 2026	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 3, 2026 ATI Inc. (Exact name of UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 3, 2026 ATI Inc.
June 3, 2026	FWP	Pricing Term Sheet ATI Inc. $450,000,000 5.875% Senior Notes due 2033 FWP Filed Pursuant to Rule 433 Registration Statement No. 333-277308 June 3, 2026 Pricing Term Sheet ATI Inc. $450,000,000 5.875% Senior Notes due 2033 This term sheet to the preliminary prospectus supplement dated June 3, 2026 should be read together with the preliminary prospectus supplement before making a decision in connection with an investment in the securities. The information in this term
June 3, 2026	EX-99.1	ATI Announces Pricing of Senior Notes Offering EX-99.1 Exhibit 99.1 ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Pricing of Senior Notes Offering DALLAS, TX — (PR Newswire) – June 3, 2026 — ATI Inc. (NYSE: ATI) an
June 3, 2026	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 3, 2026 ATI Inc. (Exact name of UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 3, 2026 ATI Inc.
June 3, 2026	EX-99.1	ATI Announces Proposed Senior Notes Offering EX-99.1 Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Proposed Senior Notes Offering DALLAS, TX — (PR Newswire)—June 3, 2026 — ATI Inc. (NYSE
June 3, 2026	424B3	SUBJECT TO COMPLETION, DATED JUNE 3, 2026 424B3 Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-277308 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and we are not soliciting offers to buy these securities in any jurisdiction where the offer or sale is not
May 19, 2026	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2026 (May 14, 2026) ATI Inc UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2026 (May 14, 2026) ATI Inc.
April 30, 2026	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 29, 2026 ☐ TRANSITION REPORT PURSUANT TO UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 29, 2026 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact name of
April 30, 2026	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2026 ATI Inc. (Exact name UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2026 ATI Inc.
April 30, 2026	EX-99.1	ATI Announces First Quarter 2026 Results Margin expansion and aerospace demand drive double-digit earnings growth GAAP EPS up 27% year-over-year; Operating cash flow up $221 million Adjusted EBITDA margin 20.1%, up 310 bps. year-over-year Raising ful NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces First Quarter 2026 Results Margin expansion and aerospace demand drive double-digit earnings growth GAAP EPS up 27% year
March 24, 2026	DEF 14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐
March 24, 2026	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confident
March 24, 2026	ARS	ARS 2025 ANNUAL REPORTWho we are. Searing heat. Crushing stress. Blistering corrosion. Maybe all the above. No matter the challenge, we are honored to be our customers’ first call. That’s because at ATI, we’re solving the world’s challenges through materials science. ATI is a global producer of high-performance materials and solutions for the aerospace and defense markets, with emerging opportunities
February 20, 2026	EX-10.17	Form of 2026 Performance-Vested Restricted Stock Unit Agreement Exhibit 10.17 Form of 2026 Performance-Vested Restricted Stock Unit Agreement This Performance-Vested Restricted Stock Unit Agreement (this “Agreement”) is made as of the 5th day of January, 2026 (the “Grant Date”) by and between ATI Inc., a Delaware company (the “Company”), and (the “Participant”). WHEREAS, the Company sponsors and maintains the Allegheny Technologies Incorporated 2022 Incentive
February 20, 2026	EX-10.16	ENTERPRISE VALUE ACCELERATION AWARD AGREEMENT PURSUANT TO THE ATI 2022 INCENTIVE PLAN Exhibit 10.16 ENTERPRISE VALUE ACCELERATION AWARD AGREEMENT PURSUANT TO THE ATI 2022 INCENTIVE PLAN This Enterprise Value Acceleration Award Agreement (this “Agreement”) is made as of the 5th day of December, 2025 (the “Grant Date”) by and between ATI Inc., a Delaware corporation (the “Company”), and (the “Participant”). WHEREAS, the Company sponsors and maintains the Allegheny Technologies Incorp
February 20, 2026	10-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 28, 2025 OR ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number 1-12001 ATI Inc. (Exact n
February 20, 2026	EX-10.18	Form of 2026 Time-Vested Restricted Stock Unit Agreement Exhibit 10.18 Form of 2026 Time-Vested Restricted Stock Unit Agreement This Time-Vested Restricted Stock Unit Agreement (“Agreement”) is made as of the 5th day of January, 2026 (the “Grant Date”) by and between ATI Inc., a Delaware company (the “Company”), and (the “Participant”). WHEREAS, the Company sponsors and maintains the Allegheny Technologies Incorporated 2022 Incentive Plan (the “Incentiv
February 20, 2026	EX-19.1	ATI Inc. Insider Trading Policies and Procedures (as of July 2025) Exhibit 19.1 ATI Inc. Insider Trading Policies and Procedures (as of July 2025) 1.General Policy: No Transactions While in Possession of Material Non-public Information (a)No director, officer or employee of the Company may purchase or sell any Company security while in possession of material non-public information about the Company. The terms “material” and “non-public” are defined in Part I, Sec
February 20, 2026	EX-21.1	SUBSIDIARIES OF THE REGISTRANT Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT The following lists the subsidiaries of ATI Inc., excluding those subsidiaries which, considered in the aggregate as a single subsidiary, do not constitute a significant subsidiary. Name of Subsidiary State or Country of Incorporation Allegheny Ludlum, LLC Pennsylvania ATI Specialty Rolled Products Holdings LLC Pennsylvania ATI Ladish LLC Wisconsin ATI O
February 19, 2026	EX-99.1	ATI Announces Multi-Year $500 Million Share Repurchase Program EX-99.1 Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Multi-Year $500 Million Share Repurchase Program DALLAS, TX—February 19, 2026—ATI Inc. (NYSE:
February 19, 2026	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2026 (February 18, 202 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2026 (February 18, 2026) ATI Inc.
February 3, 2026	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 3, 2026 ATI Inc. (Exact na UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 3, 2026 ATI Inc.
February 3, 2026	EX-99.1	ATI Announces Fourth Quarter and Fiscal Year 2025 Results Annual sales of $4.6 billion represent highest total since 2012 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-389-3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Fourth Quarter and Fiscal Year 2025 Results Annual sales of $4.6 billion represent highest total since 2012 ◦ Q4 2025 sa
December 8, 2025	EX-99.1	ATI names J. Robert Foster as Chief Financial Officer Proven ATI leader brings operational depth and financial discipline to drive next phase of growth EX-99.1 Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI names J. Robert Foster as Chief Financial Officer Proven ATI leader brings operational depth and
December 8, 2025	EX-10.1	CONSULTING AGREEMENT EX-10.1 Exhibit 10.1 CONSULTING AGREEMENT This Consulting Agreement (as it subsequently may be amended from time to time, this “Agreement”) is entered into upon the execution of both parties as of December 5, 2025 (“Effective Date”) by and between Tina K. Busch (“Executive”) and ATI Inc. (together with its affiliates, the “Company”). WHEREAS, Executive has advised the Company of her intent to resi
December 8, 2025	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 8, 2025 (December 4, 2025) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 8, 2025 (December 4, 2025) ATI Inc.
November 18, 2025	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 18, 2025 ATI Inc. (Exact n UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 18, 2025 ATI Inc.
November 18, 2025	EX-99.1	ATI President and CEO Kimberly A. Fields Elected Board Chair Robert S. Wetherbee to retire as Executive Chair and Board member EX-99.1 Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI President and CEO Kimberly A. Fields Elected Board Chair Robert S. Wetherbee to retire as Executi
October 28, 2025	EX-10.3	SECOND TIER PURCHASE AND SALE AGREEMENT dated as of September 19, 2025 ATI SPECIALTY MATERIALS, LLC, as Servicer, ATI SECURITIZATION HOLDINGS LLC, as Seller ATI SECURITIZATION LLC, as Buyer Execution Version SECOND TIER PURCHASE AND SALE AGREEMENT dated as of September 19, 2025 between ATI SPECIALTY MATERIALS, LLC, as Servicer, and ATI SECURITIZATION HOLDINGS LLC, as Seller and ATI SECURITIZATION LLC, as Buyer 1 323755146.
October 28, 2025	EX-10.4	RETIREMENT AND CONSULTING AGREEMENT RETIREMENT AND CONSULTING AGREEMENT This Retirement and Consulting Agreement (as it subsequently may be amended from time to time, this “Agreement”) is entered into upon the execution of both parties as of October 27, 2025 (“Effective Date”) by and between Donald P.
October 28, 2025	EX-10.2	FIRST TIER PURCHASE AND SALE AGREEMENT dated as of September 19, 2025 ATI SPECIALTY MATERIALS, LLC, as Servicer, and the ORIGINATORS FROM TIME TO TIME PARTY HERETO, as Originators ATI SECURITIZATION HOLDINGS LLC, as Buyer Execution Version FIRST TIER PURCHASE AND SALE AGREEMENT dated as of September 19, 2025 between ATI SPECIALTY MATERIALS, LLC, as Servicer, and the ORIGINATORS FROM TIME TO TIME PARTY HERETO, as Originators and ATI SECURITIZATION HOLDINGS LLC, as Buyer 323755067.
October 28, 2025	EX-10.1	RECEIVABLES PURCHASE AND FINANCING AGREEMENT Dated as of September 19, 2025 by and among ATI SECURITIZATION LLC, as SPE, THE PERSONS FROM TIME TO TIME PARTY HERETO, as Purchaser/Lenders, PNC BANK, NATIONAL ASSOCIATION, as Administrative Agent, ATI SP Execution Version RECEIVABLES PURCHASE AND FINANCING AGREEMENT Dated as of September 19, 2025 by and among ATI SECURITIZATION LLC, as SPE, THE PERSONS FROM TIME TO TIME PARTY HERETO, as Purchaser/Lenders, PNC BANK, NATIONAL ASSOCIATION, as Administrative Agent, ATI SPECIALTY MATERIALS, LLC, as Servicer, and PNC CAPITAL MARKETS LLC, as Structuring Agent 323755005.
October 28, 2025	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 28, 2025 ☐ TRANSITION REPORT PURSUANT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 28, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact nam
October 28, 2025	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2025 ATI Inc. (Exact na UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2025 ATI Inc.
October 28, 2025	EX-99.1	ATI Announces Third Quarter 2025 Results Continued year-over-year sales growth driven by aerospace & defense Record aerospace & defense sales of $793 million, representing 70% of Q3 2025 sales Strong margin performance in HPMC and AA&S segments Raisi NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Third Quarter 2025 Results Continued year-over-year sales growth driven by aerospace & defense Record aerospace & defens
October 6, 2025	144	144 144 0001773072 XXXXXXXX LIVE 0001018963 ATI INC 001-12001 2021 MCKINNEY AVENUE DALLAS TX 75201 4123942800 Fields Kimberly A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21154 1735262.
September 25, 2025	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 25, 2025 (September 19, 2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 25, 2025 (September 19, 2025) ATI Inc.
September 22, 2025	144	144 144 0001773072 XXXXXXXX LIVE 0001018963 ATI INC 001-12001 2021 MCKINNEY AVENUE DALLAS TX 75201 4123942800 Fields Kimberly A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 20312 1631662.
September 10, 2025	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 10, 2025 (September 9, 20 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 10, 2025 (September 9, 2025) ATI Inc.
September 10, 2025	EX-99.1	ATI Chief Financial Officer Don Newman Announces Retirement Search for successor underway EX-99.1 Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Chief Financial Officer Don Newman Announces Retirement Search for successor underway Dallas, TX—
September 10, 2025	EX-99.2	ATI names aerospace leaders to Board to drive growth Appointments of experienced leaders strengthen ATI’s position as aerospace and defense leader EX-99.2 Exhibit 99.2 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI names aerospace leaders to Board to drive growth Appointments of experienced leaders strengthen A
September 9, 2025	144	144 144 0001773072 XXXXXXXX LIVE 0001018963 ATI INC 001-12001 2021 MCKINNEY AVENUE DALLAS TX 75201 4123942800 Fields Kimberly A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 15941 1235746.
July 31, 2025	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 29, 2025 ☐ TRANSITION REPORT PURSUANT TO S UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 29, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact name of
July 31, 2025	EX-99.1	ATI Announces Second Quarter 2025 Results Continued year-over-year sales growth driven by aerospace & defense Aerospace and defense sales of $762 million, representing 67% of Q2 2025 sales Strong demand for commercial jet engines - YoY sales growth o NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Second Quarter 2025 Results Continued year-over-year sales growth driven by aerospace & defense Aerospace and defense sa
July 31, 2025	EX-10.1	Second Amended and Restated Revolving Credit, Term Loan, Delayed Draw Term Loan and Security Agreement, dated as of June 13, 2025, by and among the Borrowers party thereto, the Company and other Guarantors party thereto, the Lenders party thereto and PNC Bank, National Association, as Lender and Agent (filed herewith).* Exhibit 10.1 SECOND AMENDED AND RESTATED REVOLVING CREDIT, TERM LOAN, DELAYED DRAW TERM LOAN AND SECURITY AGREEMENT by and among OREGON METALLURGICAL, LLC, ALLEGHENY LUDLUM, LLC, TDY INDUSTRIES, LLC, INTERNATIONAL HEARTH MELTING, LLC, ATI PRECISION FINISHING, LLC, TITANIUM WIRE CORPORATION, ENVIRONMENTAL, INC., ATI TITANIUM LLC, ATI LADISH LLC, ATI LADISH MACHINING, INC., CHEN-TECH INDUSTRIES, INC
July 31, 2025	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2025 ATI Inc. (Exact name UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2025 ATI Inc.
June 24, 2025	LETTER	LETTER June 24, 2025 Donald P. Newman Chief Financial Officer ATI Inc. 2021 McKinney Avenue Dallas, Texas 75201 Re: ATI Inc. Form 10-K for the Fiscal Year Ended December 29, 2024 File No. 001-12001 Dear Donald P. Newman: We have completed our review of your filings. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any re
June 20, 2025	8-K	Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 20, 2025 (June 13, 2025) ATI Inc.
June 20, 2025	CORRESP	ATI Inc. CORRESP ATI Inc. 2021 McKinney Avenue Suite 1100 Dallas, TX 75201 www.ATImaterials.com June 20, 2025 United States Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.E. Washington, D.C. 20549 Attention: Claire Erlanger Re: ATI Inc. Form 10-K for the Fiscal Year Ended December 29, 2024 Form 8-K furnished February 4, 2025 File No. 001-12001 Lad
June 13, 2025	11-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024 ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQ
June 13, 2025	11-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024 ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQ
May 30, 2025	SD	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM SD Specialized Disclosure Report ATI Inc. (Exact Name of Registrant as Specified in Charter) Delaware 1-12001 25-1792394 (State or Other Jurisdiction of Incorporation) (Commis SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM SD Specialized Disclosure Report ATI Inc.
May 21, 2025	8-K	Current Report UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 21, 2025 (May 15, 2025) ATI Inc.
May 21, 2025	EX-3.1	Fifth Amended and Restated Bylaws Exhibit 3.1 ATI INC. FIFTH AMENDED AND RESTATED BYLAWS Dated as of May 16, 2025 TABLE OF CONTENTS Page ARTICLE I OFFICES 1 Section 1. Registered Office 1 Section 2. Offices 1 ARTICLE II MEETINGS OF STOCKHOLDERS 1 Section 1. Place of Meetings 1 Section 2. Annual Meeting 1 Section 3. Special Meetings 4 Section 4. Notice of Meetings; Waiver 4 Section 5. Quorum; Adjournment 5 Section 6. Proxies and Vo
May 7, 2025	LETTER	LETTER May 7, 2025 Donald P. Newman Chief Financial Officer ATI Inc. 2021 McKinney Avenue Dallas, Texas 75201 Re: ATI Inc. Form 10-K for the Fiscal Year Ended December 29, 2024 Form 8-K furnished February 4, 2025 Response Letter dated April 22, 2025 File No. 001-12001 Dear Donald P. Newman: We have reviewed your April 22, 2025 response to our comment letter and have the following comment. Please respond
May 1, 2025	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2025 ATI Inc.
May 1, 2025	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 30, 2025 ☐ TRANSITION REPORT PURSUANT TO UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact name of
May 1, 2025	EX-99.1	ATI Announces First Quarter 2025 Results Strong year-over-year sales growth driven by aerospace & defense Aerospace and defense sales of $754 million, representing 66% of Q1 2025 sales Agreement with USW for Specialty Rolled Products employees ratifi NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces First Quarter 2025 Results Strong year-over-year sales growth driven by aerospace & defense Aerospace and defense sales
April 22, 2025	CORRESP	ATI Inc. CORRESP ATI Inc. 2021 McKinney Avenue Suite 1100 Dallas, TX 75201 www.ATImaterials.com April 22, 2025 United States Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.E. Washington, D.C. 20549 Attention: Claire Erlanger Re: ATI Inc. Form 10-K for the Fiscal Year Ended December 29, 2024 Form 8-K furnished February 4, 2025 File No. 001-12001 La
March 27, 2025	DEF 14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for
March 27, 2025	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for
March 27, 2025	ARS	ARS ATI2024 FINANCIAL OVERVIEW In millions, e)(cept per share amounts Sales Gross profit Restructu ring charges (credits) Operating income Results attributable to ATI: Net income Per common share Adjusted results: ATI EBITDA C•l Net income as adjusted caJ AdJuSted results per common share c•J BUSINESS SEGMENT RESULTS High Performance Materials & Components (HPMC) Sales Segment EBITDA As percentage of segment sales Sales Segment EBITDA As percentage of segment sales Advanced Alloys & Solutions (AA&S) Sales Segment EBITDA As percentage of segment sales Sales Segment EBITDA As percentage of segment sales $ $ $ $ 530 97 18.
March 14, 2025	LETTER	LETTER March 14, 2025 Donald P. Newman Chief Financial Officer ATI Inc. 2021 McKinney Avenue Dallas, Texas 75201 Re: ATI Inc. Form 10-K for the Fiscal Year Ended December 29, 2024 Form 8-K furnished February 4, 2025 File No. 001-12001 Dear Donald P. Newman: We have limited our review of your filing to the financial statements and related disclosures and have the following comment(s). Please respond to th
February 21, 2025	EX-10.18	Form of 2025 Performance-Vested Restricted Stock Unit Agreement (filed herewith)* Exhibit 10.18 Form of 2025 Performance-Vested Restricted Stock Unit Agreement This Performance-Vested Restricted Stock Unit Agreement (this “Agreement”) is made as of the 3rd day of January, 2025 (the “Grant Date”) by and between ATI Inc., a Delaware company (the “Company”), and (the “Participant”). WHEREAS, the Company sponsors and maintains the Allegheny Technologies Incorporated 2022 Incentive
February 21, 2025	10-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 29, 2024 OR ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number 1-12001 ATI Inc. (Exact n
February 21, 2025	EX-19.1	Insider Trading Policy (filed herewith). Exhibit 19.1 ATI Inc. Insider Trading Policies and Procedures (as of February 2025) These Insider Trading Policies and Procedures outline the standards of ATI Inc. (“ATI” or the “Company”) on trading and causing the trading of the Company’s securities or securities of other publicly-traded companies while in possession of confidential information. This policy is divided into two parts. The first p
February 21, 2025	EX-21.1	Subsidiaries of the Registrant (filed herewith). Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT The following lists the subsidiaries of ATI Inc., excluding those subsidiaries which, considered in the aggregate as a single subsidiary, do not constitute a significant subsidiary. Name of Subsidiary State or Country of Incorporation Allegheny Ludlum, LLC Pennsylvania ATI Specialty Rolled Products Holdings LLC Pennsylvania ATI Ladish LLC Wisconsin ATI O
February 21, 2025	EX-10.17	Form of 2025 Time-Vested Restricted Stock Unit Agreement (filed herewith)* Exhibit 10.17 Form of 2025 Time-Vested Restricted Stock Unit Agreement This Time-Vested Restricted Stock Unit Agreement (“Agreement”) is made as of the 3rd day of January, 2025 (the “Grant Date”) by and between ATI Inc., a Delaware company (the “Company”), and (the “Participant”). WHEREAS, the Company sponsors and maintains the Allegheny Technologies Incorporated 2022 Incentive Plan (the “Incentiv
February 12, 2025	EX-99	EX-99 EX-99 2 exhibit99.txt Exhibit 99 Pursuant to the instructions in Item 7 of Schedule 13G, the following table lists the identity and Item 3 classification, if applicable, of each relevant entity that beneficially owns shares of the security class being reported on this Schedule 13G. Entity ITEM 3 Classification Crosby Advisors LLC N/A FIAM LLC IA Fidelity Institutional Asset Management Trust Compan
February 4, 2025	EX-99.1	ATI Announces Fourth Quarter 2024 Results Full year 2024 sales of $4.4 billion represents ATI's highest total since 2012 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Fourth Quarter 2024 Results Full year 2024 sales of $4.4 billion represents ATI's highest total since 2012 ◦Q4 2024 sale
February 4, 2025	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 4, 2025 ATI Inc. (Exact na UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 4, 2025 ATI Inc.
November 12, 2024	SC 13G	ATI / ATI Inc. / FMR LLC Passive Investment SC 13G 1 filing.txt SCHEDULE 13G Amendment No.0 ATI INC COMMON STOCK Cusip #01741R102 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [x] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) Cusip #01741R102 Item 1: Reporting Person - FMR LLC Item 2: (a) [ ] (b) [ ] Item 4: Delaware Item 5: 9,942,214 Item 6: 0 Item 7: 9,990,719 Item 8: 0 Item 9: 9,990,719 Ite
November 8, 2024	SC 13G/A	ATI / ATI Inc. / BlackRock, Inc. Passive Investment SC 13G/A 1 us01741r1023110824.txt us01741r1023110824.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 3) ATI INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 01741R102 - (CUSIP Number) September 30, 2024 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to design
October 29, 2024	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 29, 2024 ☐ TRANSITION REPORT PURSUANT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 29, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact nam
October 29, 2024	EX-99.1	ATI Announces Third Quarter 2024 Results Ninth consecutive quarter with sales in excess of $1 billion NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Third Quarter 2024 Results Ninth consecutive quarter with sales in excess of $1 billion ◦Q3 2024 sales of $1.05 billion
October 29, 2024	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2024 ATI Inc.
October 29, 2024	EX-10.1	Amended Executive Severance Plan (filed herewith)* Exhibit 10.1 ATI INC. AMENDED EXECUTIVE SEVERANCE BENEFIT PLAN Adopted September 19, 2024 ARTICLE I NAME, PURPOSE AND EFFECTIVE DATE OF PLAN 1.1 Name of the Plan. ATI Inc. (together with its Subsidiaries, as defined in this Plan, the “Company”) hereby establishes a severance benefit plan for Eligible Employees (as defined in this Plan), to be known as the ATI Inc. Executive Severance Benefit Plan
October 23, 2024	SC 13G/A	ATI / ATI Inc. / BlackRock, Inc. Passive Investment SC 13G/A 1 us01741r1023102324.txt us01741r1023102324.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 3) ATI INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 01741R102 - (CUSIP Number) September 30, 2024 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to design
October 17, 2024	SC 13G/A	ATI / ATI Inc. / STATE STREET CORP Passive Investment SC 13G/A 1 ATIInc.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* ATI INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 01741R102 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Schedul
August 6, 2024	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2024 ATI Inc. (Exact name UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2024 ATI Inc.
August 6, 2024	EX-99.1	ATI Announces Second Quarter 2024 Results Strong performance in Aerospace & Defense propels sequential growth NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Second Quarter 2024 Results Strong performance in Aerospace & Defense propels sequential growth ◦Q2 2024 sales of $1.1 b
August 6, 2024	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2024 ☐ TRANSITION REPORT PURSUANT TO S UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact name of
June 7, 2024	11-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023 ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQ
June 7, 2024	11-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023 ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQ
May 31, 2024	SD	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM SD Specialized Disclosure Report ATI Inc. (Exact Name of Registrant as Specified in Charter) Delaware 1-12001 25-1792394 (State or Other Jurisdiction of Incorporation) (Commis UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM SD Specialized Disclosure Report ATI Inc.
May 20, 2024	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2024 (May 16, 2024) ATI Inc UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2024 (May 16, 2024) ATI Inc.
April 30, 2024	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2024 ATI Inc.
April 30, 2024	EX-99.1	ATI Announces First Quarter 2024 Results Continued strong year-over-year revenue growth in aerospace and defense NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces First Quarter 2024 Results Continued strong year-over-year revenue growth in aerospace and defense ◦Q1 2024 sales of $1.
April 30, 2024	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2024 ☐ TRANSITION REPORT PURSUANT TO UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact name of
March 28, 2024	ARS	ARS 2023 ANNUAL REPORT2 ATI 2023 ANNUAL REPORT WWW.ATIMATERIALS.COM 1 Who we are. Searing heat. Crushing stress. Blistering corrosion. Maybe all the above. No matter the challenge, we are honored to be our customer's first call. That’s because at ATI, we're solving the world’s challenges through materials science. ATI is a global producer of high performance materials and solutions for the aerospace a
March 28, 2024	DEF 14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐
March 28, 2024	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for
March 14, 2024	EX-99.1	ATI names Vaishali Bhatia General Counsel and Chief Compliance Officer EX-99.1 Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI names Vaishali Bhatia General Counsel and Chief Compliance Officer DALLAS, TX—March 14, 2024—ATI
March 14, 2024	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 14, 2024 ATI Inc. (Exact name UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 14, 2024 ATI Inc.
March 7, 2024	8-K	Current Report UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 7, 2024 ATI Inc.
February 23, 2024	EX-25.2	Form T-1 Statement of Eligibility of Computershare Trust Company, N.A., as Trustee, with respect to the form of subordinated debt indenture. Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) [ ] COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of trustee as specified in its chart
February 23, 2024	EX-FILING FEES	Filing Fee Table Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) ATI Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forwa
February 23, 2024	EX-10.15	Form of 2024 Performance-Vested Restricted Stock Unit Agreement (filed herewith)* Exhibit 10.15 Form of 2024 Performance-Vested Restricted Stock Unit Agreement This Performance-Vested Restricted Stock Unit Agreement (this “Agreement”) is made as of the day of January, 2024 (the “Grant Date”) by and between ATI Inc., a Delaware company (the “Company”), and #ParticipantName+C# (the “Participant”). WHEREAS, the Company sponsors and maintains the Allegheny Technologies Incorporated
February 23, 2024	S-3ASR	As filed with the Securities and Exchange Commission on February 23, 2024 Table of Contents As filed with the Securities and Exchange Commission on February 23, 2024 Registration No.
February 23, 2024	EX-21.1	Subsidiaries of the Registrant (filed herewith). Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT The following lists the subsidiaries of ATI Inc., excluding those subsidiaries which, considered in the aggregate as a single subsidiary, do not constitute a significant subsidiary. Name of Subsidiary State or Country of Incorporation ALC Funding Corporation Delaware Allegheny Ludlum, LLC Pennsylvania ATI Specialty Rolled Products Holdings LLC Pennsylvan
February 23, 2024	EX-97.1	ATI Inc. Executive Compensation Recovery Policy (filed herewith) Exhibit 97.1 ATI INC. EXECUTIVE COMPENSATION RECOVERY POLICY Purpose ATI Inc. (“Company”) is establishing this Executive Compensation Recover Policy (“Policy”) to comply with Section 10D of the Securities Exchange Act of 1934 (the “Exchange Act”), Rule 10D-1 promulgated under the Exchange Act (“Rule 10D-1”), and Section 303A.14 of the New York Stock Exchange (“NYSE”) Listed Company Manual (the “Li
February 23, 2024	EX-10.14	Form of 2024 Time-Vested Restricted Stock Unit Agreement (filed herewith)* Exhibit 10.14 Form of 2024 Time-Vested Restricted Stock Unit Agreement This Time-Vested Restricted Stock Unit Agreement (“Agreement”) is made as of the day of January, 2024 (the “Grant Date”) by and between ATI Inc., a Delaware company (the “Company”), and #ParticipantName+C# (the “Participant”). WHEREAS, the Company sponsors and maintains the Allegheny Technologies Incorporated 2022 Incentive Pla
February 23, 2024	EX-4.8	Form of Subordinated Debt Security (included in Exhibit 4.8). Exhibit 4.8 ATI INC. and COMPUTERSHARE TRUST COMPANY, N.A., Trustee INDENTURE Dated as of [ ] [ ], 20[ ] SUBORDINATED DEBT SECURITIES ATI INC. Certain Sections of this Indenture relating to Sections 310 through 318, inclusive, of the Trust Indenture Act of 1939, as amended Trust Indenture Act Section Indenture Section Section 310(a)(1) 609 (a)(2) 609 (a)(3) Not Applicable (a)(4) Not Applicable
February 23, 2024	EX-25.1	Form T-1 Statement of Eligibility of Computershare Trust Company, N.A., as successor to Wells Fargo Bank, National Association, as Trustee, with respect to the Indenture dated as of September 14, 2021. Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) [ ] COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of trustee as specified in its chart
February 23, 2024	10-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 OR ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number 1-12001 ATI Inc. (Exact n
February 23, 2024	8-K	Current Report UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2024 ATI Inc.
February 23, 2024	EX-99.1	ATI Elects Kimberly A. Fields as President and CEO Robert S. Wetherbee to become Executive Chairman Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Elects Kimberly A. Fields as President and CEO Robert S. Wetherbee to become Executive Chairman DALLAS, T
February 23, 2024	EX-10.16	Executive Severance Benefit Plan (filed herewith)* Exhibit 10.16 ATI INC. EXECUTIVE SEVERANCE BENEFIT PLAN Adopted February 21, 2024 ARTICLE I NAME, PURPOSE AND EFFECTIVE DATE OF PLAN 1.1 Name of the Plan. ATI Inc. (together with its Subsidiaries, as defined in this Plan, the “Company”) hereby establishes a severance benefit plan for Eligible Employees (as defined in this Plan), to be known as the ATI Inc. Executive Severance Benefit Plan (the “Pl
February 23, 2024	EX-18.1	Preferability Letter (filed herewith). Exhibit 18.1 February 23, 2024 Board of Directors ATI Inc. 2021 McKinney Avenue Dallas, Texas Ladies and Gentlemen: Note 1 of the Notes to the Consolidated Financial Statements of ATI Inc. and subsidiaries (the Company) included in its Annual Report on Form 10-K for the year ended December 31, 2023 describes a change in the method of accounting for recognizing actuarial gains and losses for its de
February 14, 2024	SC 13G/A	ATI / ATI Inc. / ALLIANCEBERNSTEIN L.P. - SEC SCHEDULE 13G Passive Investment SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* ATI Inc (Name of Issuer) Common Stock (Title of Class of Securities) 01741R102 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate t
February 14, 2024	SC 13G/A	ATI / ATI Inc. / ALLIANCEBERNSTEIN L.P. - SEC SCHEDULE 13G Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* ATI Inc (Name of Issuer) Common Stock (Title of Class of Securities) 01741R102 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is fi
February 13, 2024	SC 13G/A	ATI / ATI Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 14)* Name of issuer: ATI Inc Title of Class of Securities: Common Stock CUSIP Number: 01741R102 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-1
February 9, 2024	SC 13G/A	ATI / ATI Inc. / Capital International Investors - SEC SCHEDULE 13G Passive Investment SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* ATI Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 01741R102 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate
February 1, 2024	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 1, 2024 ATI Inc.
February 1, 2024	EX-99.1	ATI Announces Fourth Quarter and Full Year 2023 Results Continued strong performance and year-over-year revenue growth in aerospace and defense NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Fourth Quarter and Full Year 2023 Results Continued strong performance and year-over-year revenue growth in aerospace an
January 25, 2024	SC 13G/A	ATI / ATI Inc. / STATE STREET CORP Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 AMENDED FILING ATI INC (NAME OF ISSUER) COMMON STOCK (TITLE OF CLASS OF SECURITIES) 01741R102 (CUSIP NUMBER) 12/31/2023 (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT) CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE PURSUANT TO WHICH THIS SCHEDULE IS FILED: (X) RUL
January 22, 2024	SC 13G/A	ATI / ATI Inc. / BlackRock Inc. Passive Investment SC 13G/A 1 us01741r1023012224.txt us01741r1023012224.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 2) ATI INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 01741R102 - (CUSIP Number) December 31, 2023 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa
January 19, 2024	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 19, 2024 ATI Inc. (Exact na UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 19, 2024 ATI Inc.
January 19, 2024	EX-99.1	December 31 December 31 March 31 June 30 September 30 2021 2022 2023 2023 2023 ASSETS Current Assets: Cash and cash equivalents $ 687.7 $ 584.0 $ 196.2 $ 267.1 $ 432.9 Accounts receivable, net of allowances for doubtful accounts 470.0 579.2 725.6 710 ATI Inc. and Subsidiaries Consolidated Balance Sheets (unaudited) (Dollars in millions) December 31 December 31 March 31 June 30 September 30 2021 2022 2023 2023 2023 ASSETS Current Assets: Cash and cash equivalents $ 687.7 $ 584.0 $ 196.2 $ 267.1 $ 432.9 Accounts receivable, net of allowances for doubtful accounts 470.0 579.2 725.6 710.1 683.0 Short-term contract assets 53.9 64.1 52.7 51.8 56.6 I
January 10, 2024	EX-10.1	Retirement, Transition and Release Agreement, dated as of January 8, 2024, by and between the Company and Elliot S. Davis (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K dated January 10, 2024 (File No. 1-12002))* Exhibit 10.1 RETIREMENT, TRANSITION AND RELEASE AGREEMENT This Retirement, Transition and Release Agreement (as it subsequently may be amended from time to time, this “Agreement”) is entered into as of the execution of both parties as of January 8, 2024 (“Effective Date”) by and among Elliot S. Davis (“Executive”) and ATI Inc. (together with its affiliates, the “Company”). RECITALS WHEREAS, Execut
January 10, 2024	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 10, 2024 (January 4, 2024) ATI Inc.
November 29, 2023	8-K	Regulation FD Disclosure, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 29, 2023 ATI Inc.
November 29, 2023	EX-99.1	ATI targets 2027 revenue exceeding $5 billion on platform of organic growth Company leaders to share insights into expanding A&D business, affirm long-term strategy Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI targets 2027 revenue exceeding $5 billion on platform of organic growth Company leaders to share insights
November 2, 2023	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2023 ATI Inc.
November 2, 2023	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2023 ☐ TRANSITION REPORT PURSUANT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact nam
November 2, 2023	EX-99.1	ATI Announces Third Quarter 2023 Results Increasing Aerospace & Defense content drives year-over-year earnings growth NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Third Quarter 2023 Results Increasing Aerospace & Defense content drives year-over-year earnings growth ◦Q3 2023 sales o
October 18, 2023	EX-99.1	ATI reduces U.S. defined benefit pension obligation by approximately 85% through annuitization Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI reduces U.S. defined benefit pension obligation by approximately 85% through annuitization DALLAS, TX—Oct
October 18, 2023	8-K	Current Report UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 18, 2023 ATI Inc.
August 11, 2023	8-K	Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 7, 2023 ATI Inc.
August 11, 2023	EX-4.2	Second Supplemental Indenture, dated August 11, 2023, between ATI Inc. and Computershare Trust Company, as Trustee (incorporated by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K dated August 11, 2023) (File No. 1-12001)) EX-4.2 Exhibit 4.2 Execution Version ATI INC. and COMPUTERSHARE TRUST COMPANY, N.A., as successor to Wells Fargo Bank, National Association, as Trustee SECOND SUPPLEMENTAL INDENTURE DATED AS OF AUGUST 11, 2023 TO THE INDENTURE DATED AS OF SEPTEMBER 14, 2021 $425,000,000 principal amount of 7.250% Senior Notes due 2030 Table of Contents Page ARTICLE I DEFINITIONS 2 SECTION 1.01. Capitalized Terms 2
August 11, 2023	EX-1.1	Underwriting Agreement, dated as of August 7, 2023, by and between ATI Inc. and Citigroup Global Markets Inc., as representative of the underwriters named therein. Exhibit 1.1 Execution Version ATI INC. 7.250% Senior Notes due 2030 Underwriting Agreement August 7, 2023 CITIGROUP GLOBAL MARKETS INC. As Representative of the several Underwriters listed in Schedule I hereto c/o Citigroup Global Markets Inc. 388 Greenwich Street New York, NY 10013 Ladies and Gentlemen: ATI Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several Un
August 8, 2023	EX-FILING FEES	Calculation of Filing Fee Tables (Form Type) ATI Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Regist Exhibit 107 Calculation of Filing Fee Tables 424B5 (Form Type) ATI Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward For
August 8, 2023	424B5	ATI Inc. 7.250% Senior Notes due 2030 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-254906 P R O S P E C T U S S U P P L E M E N T (To Prospectus Dated March 31, 2021) ATI Inc. $425,000,000 7.250% Senior Notes due 2030 We are offering $425,000,000 aggregate principal amount of our 7.250% Senior Notes due 2030 (the “notes”). The notes will mature on August 15, 2030. Interest will accrue from August 11, 2023, a
August 7, 2023	8-K	Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 7, 2023 ATI Inc.
August 7, 2023	8-K	Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 7, 2023 ATI Inc.
August 7, 2023	424B3	SUBJECT TO COMPLETION, DATED AUGUST 7, 2023 Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-254906 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and we are not soliciting offers to buy these securities in any jurisdiction where the offer or sale is not permit
August 7, 2023	EX-99.1	ATI Announces Pricing of Senior Notes Offering EX-99.1 Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] ATI Announces Pricing of Senior Notes Offering DALLAS, TX — August 7, 2023 — ATI Inc. (NYSE: ATI) announced today that it
August 7, 2023	FWP	Pricing Term Sheet ATI Inc. $425,000,000 7.250% Senior Notes due 2030 Filed Pursuant to Rule 433 Registration Statement No. 333-254906 August 7, 2023 Pricing Term Sheet ATI Inc. $425,000,000 7.250% Senior Notes due 2030 This term sheet to the preliminary prospectus supplement dated August 7, 2023 should be read together with the preliminary prospectus supplement before making a decision in connection with an investment in the securities. The information in this term
August 7, 2023	EX-99.1	ATI Announces Proposed Senior Notes Offering EX-99.1 Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.394.2908 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] ATI Announces Proposed Senior Notes Offering DALLAS, TX — August 7, 2023 — ATI Inc. (NYSE: ATI) announced today its intent
August 2, 2023	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2023 ☐ TRANSITION REPORT PURSUANT TO S UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact name of
August 2, 2023	EX-99.1	ATI Announces Second Quarter 2023 Results Strong performance in Aerospace & Defense propels sequential and year over year growth NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters David Weston Natalie Gillespie 2021 McKinney Avenue 412-394-2908 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Second Quarter 2023 Results Strong performance in Aerospace & Defense propels sequential and year over year growth ◦Q2 2
August 2, 2023	EX-10.1	Amendment No. 2, dated as of September 9, 2022, to First Amended and Restated Revolving Credit, Term Loan, Delayed Draw Term Loan and Security Agreement, dated as of September 30, 2019, by and among the borrowers party thereto, the Company and other guarantors party thereto, the lenders party thereto, and PNC Bank, National Association, as Lender and Agent (filed herewith). Exhibit 10.1 AMENDMENT NO. 2 TO FIRST AMENDED AND RESTATED REVOLVING CREDIT, TERM LOAN AND SECURITY AGREEMENT THIS AMENDMENT NO. 2 TO FIRST AMENDED AND RESTATED REVOLVING CREDIT, TERM LOAN AND SECURITY AGREEMENT (this "Amendment") is dated as of September 9, 2022 (the "Effective Date") (subject to Paragraph 5 below) and is made by and among OREGON METALLURGICAL, LLC, an Oregon limited liability co
August 2, 2023	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 2, 2023 ATI Inc.
June 9, 2023	11-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2022 ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQ
June 9, 2023	11-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2022 ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQ
June 6, 2023	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 6, 2023 ATI Inc. (Exact name o UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 6, 2023 ATI Inc.
June 6, 2023	EX-99.1	Kimberly Fields Named President and Chief Operating Officer Driving strategic growth through tightly aligned operations and disciplined execution EX-99.1 Exhibit 99.1 NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters Tom Wright Natalie Gillespie 2021 McKinney Avenue, Suite 1100 412.258.4781 412.389.3124 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com Kimberly Fields Named President and Chief Operating Officer Driving strategic growth through tightly alig
May 30, 2023	SD	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM SD Specialized Disclosure Report ATI Inc. (Exact Name of Registrant as Specified in Charter) Delaware 1-12001 25-1792394 (State or Other Jurisdiction of Incorporation) (Commis Form SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM SD Specialized Disclosure Report ATI Inc.
May 15, 2023	8-K	Submission of Matters to a Vote of Security Holders UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2023 (May 11, 2023) ATI Inc.
May 4, 2023	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2023 (April 28, 2023) ATI In UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2023 (April 28, 2023) ATI Inc.
May 4, 2023	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2023 ☐ TRANSITION REPORT PURSUANT TO UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact name of
May 4, 2023	EX-99.1	ATI Announces First Quarter 2023 Results Aerospace and Defense sales propel strong year over year growth NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters Tom Wright Natalie Gillespie 2021 McKinney Avenue 412-258-4781 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces First Quarter 2023 Results Aerospace and Defense sales propel strong year over year growth ◦Q1 2023 sales of $1.04 billion u
March 27, 2023	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo
March 24, 2023	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of
March 24, 2023	DEF 14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confid
March 24, 2023	ARS	ARS 2022 ANNUAL REPORT3 ATI 2022 ANNUAL REPORT WWW.ATIMATERIALS.COM 1 Who we are. ATI is a producer of specialty materials, highly differentiated by our materials science expertise and advanced process technologies. We are a leader in aerospace and defense and leverage our expertise to adjacent high-value critical applications in the electronics, specialty energy and medical markets. Built on the stro
March 2, 2023	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 1, 2023 ATI Inc.
March 2, 2023	EX-99.1	Global Financial Expert Ruby Sharma Joins ATI Board NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters Tom Wright Natalie Gillespie 2021 McKinney Avenue 412-258-4781 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com Global Financial Expert Ruby Sharma Joins ATI Board DALLAS, TX—March 2, 2023—ATI Inc. (NYSE: ATI) today announced that Ruby Sharma has bee
February 24, 2023	10-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2022 OR ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number 1-12001 ATI Inc. (Exact n
February 24, 2023	EX-10.12	Form of 2023 Time-Vested Restricted Stock Unit Agreement (incorporated by reference to Exhibit 10,12 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2022 (File No. 1-12001))* Exhibit 10.12 Form of 2023 Time-Vested Restricted Stock Unit Agreement This Time-Vested Restricted Stock Unit Agreement (“Agreement”) is made as of the day of January, 2023 (the “Grant Date”) by and between ATI Inc., a Delaware company (the “Company”), and #ParticipantName+C# (the “Participant”). WHEREAS, the Company sponsors and maintains the Allegheny Technologies Incorporated 2022 Incentive Pla
February 24, 2023	EX-10.13	Form of 2023 Performance-Vested Restricted Stock Unit Agreement (incorporated by reference to Exhibit 10,13 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2022 (File No. 1-12001))* Exhibit 10.13 Form of 2023 Performance-Vested Restricted Stock Unit Agreement This Performance-Vested Restricted Stock Unit Agreement (this “Agreement”) is made as of the day of January, 2023 (the “Grant Date”) by and between ATI Inc., a Delaware company (the “Company”), and #ParticipantName+C# (the “Participant”). WHEREAS, the Company sponsors and maintains the Allegheny Technologies Incorporated
February 24, 2023	EX-21.1	Subsidiaries of the Registrant (filed herewith). Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT The following lists the subsidiaries of ATI Inc., excluding those subsidiaries which, considered in the aggregate as a single subsidiary, do not constitute a significant subsidiary. Name of Subsidiary State or Country of Incorporation ALC Funding Corporation Delaware Allegheny Ludlum, LLC Pennsylvania ATI Flat Rolled Products Holdings LLC Pennsylvania AT
February 14, 2023	SC 13G	ATI / Allegheny Technologies Incorporated / ALLIANCEBERNSTEIN L.P. - SEC SCHEDULE 13G Passive Investment SC 13G 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* ATI Inc (Name of Issuer) Common Stock (Title of Class of Securities) 01741R102 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the r
February 13, 2023	SC 13G	ATI / Allegheny Technologies Incorporated / ALLIANCEBERNSTEIN L.P. - SEC SCHEDULE 13G Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* ATI Inc (Name of Issuer) Common Stock (Title of Class of Securities) 01741R102 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is file
February 13, 2023	SC 13G/A	ATI / Allegheny Technologies Incorporated / Capital International Investors - SEC SCHEDULE 13G Passive Investment SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* ATI Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 01741R102 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate
February 9, 2023	SC 13G/A	ATI / Allegheny Technologies Incorporated / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 13)* Name of issuer: ATI Inc. Title of Class of Securities: Common Stock CUSIP Number: 01741R102 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-
February 2, 2023	8-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 2, 2023 ATI Inc. (Exact na UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 2, 2023 ATI Inc.
February 2, 2023	EX-99.1	ATI Announces Fourth Quarter 2022 Results Continued strong performance and year-over-year revenue growth in aerospace and defense NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters Tom Wright Natalie Gillespie 2021 McKinney Avenue 412-258-4781 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Fourth Quarter 2022 Results Continued strong performance and year-over-year revenue growth in aerospace and defense ◦Q4 2022
February 1, 2023	SC 13G/A	ATI / Allegheny Technologies Incorporated / STATE STREET CORP Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 AMENDED FILING ATI INC (NAME OF ISSUER) COMMON STOCK (TITLE OF CLASS OF SECURITIES) 01741R102 (CUSIP NUMBER) 12/31/2022 (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT) CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE PURSUANT TO WHICH THIS SCHEDULE IS FILED: (X) RUL
January 26, 2023	SC 13G/A	ATI / Allegheny Technologies Incorporated / BlackRock Inc. Passive Investment SC 13G/A 1 us01741r1023012623.txt us01741r1023012623.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 1) ATI INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 01741R102 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa
January 20, 2023	SC 13G	ATI / Allegheny Technologies Incorporated / BlackRock Inc. Passive Investment SC 13G 1 us01741r1023011923.txt us01741r1023011923.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: ) ATI INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 01741R102 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate
November 3, 2022	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2022 ☐ TRANSITION REPORT PURSUANT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact nam
November 3, 2022	EX-10.1	Amendment No. 2, dated as of September 9, 2022, to First Amended and Restated Revolving Credit, Term Loan, Delayed Draw Term Loan and Security Agreement, dated as of September 30, 2019, by and among the borrowers party thereto, the Company and other guarantors party thereto, the lenders party thereto, and PNC Bank, National Association, as Lender and Agent (filed herewith). Exhibit 10.1 AMENDMENT NO. 2 TO First AMENDED AND RESTATED revolving credit, term loan and security agreement THIS AMENDMENT NO. 2 to FIRST AMENDED AND RESTATED revolving credit, term loan and security agreement (this "Amendment") is dated as of September 9, 2022 (the "Effective Date") (subject to Paragraph 5 below) and is made by and among Oregon Metallurgical, LLC, an Oregon limited liability co
November 2, 2022	EX-99.1	ATI Announces Third Quarter 2022 Results Continued strong sequential and year-over-year revenue growth in aerospace and defense markets NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters Tom Wright Natalie Gillespie 2021 McKinney Avenue 412-258-4781 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Third Quarter 2022 Results Continued strong sequential and year-over-year revenue growth in aerospace and defense markets ?S
November 2, 2022	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2022 ATI INC.
October 14, 2022	8-K/A	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K/A (Amendment No.
October 14, 2022	EX-10.1	Retirement, Transition and Release Agreement, dated as of October 12, 2022, by and between the Company and Kevin B. Kramer (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K dated October 14, 2022 (File No. 1-12002)). Exhibit 10.1 RETIREMENT, TRANSITION AND RELEASE AGREEMENT This Retirement, Transition and Release Agreement (as it subsequently may be amended from time to time, this ?Agreement?) is entered into as of October 12, 2022 (?Effective Date?) by and among Kevin B. Kramer (?Executive?) and ATI Inc. (together with its affiliates, the ?Company?). RECITALS WHEREAS, Executive and the Company have agreed tha
September 22, 2022	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 22, 2022 ATI Inc.
September 9, 2022	8-K	Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 9, 2022 ATI Inc.
August 4, 2022	EX-99.1	ATI Announces Second Quarter 2022 Results Strong jet engine sales growth and operating discipline drive improved financial performance NEWS RELEASE ATI Inc. Investor Contact: Media Contact: Corporate Headquarters Scott A. Minder Natalie Gillespie 2021 McKinney Avenue 412-395-2720 412-394-2850 Dallas, TX 75201 U.S.A. [email protected] [email protected] www.ATImaterials.com ATI Announces Second Quarter 2022 Results Strong jet engine sales growth and operating discipline drive improved financial performa
August 4, 2022	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2022 ☐ TRANSITION REPORT PURSUANT TO S UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ATI Inc. (Exact name of
August 4, 2022	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2022 ATI INC.
July 8, 2022	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 8, 2022 ATI Inc.
June 22, 2022	EX-3.1	Certificate of Amendment of Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K dated June 22, 2022 (File No. 1-12001). Exhibit 3.1 STATE OF DELAWARE CERTIFICATE OF AMENDMENT OF CERTIFICATE OF INCORPORATION Pursuant to Section 242 of the General Corporation Law of the State of Delaware, Allegheny Technologies Incorporated, a corporation duly organized and existing under the General Corporation Law of the State of Delaware (the ?Corporation?) does hereby certify: FIRST: Article ONE of the Restated Certificate of Inc
June 22, 2022	8-K	Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 22, 2022 ATI Inc.
June 22, 2022	EX-3.2	Fourth Amended and Restated Bylaws EX-3.2 3 d314796dex32.htm EX-3.2 Exhibit 3.2 ATI INC. FOURTH AMENDED AND RESTATED BYLAWS Dated as of June 22, 2022 TABLE OF CONTENTS Page ARTICLE I OFFICES 1 Section 1. Registered Office 1 Section 2. Offices 1 ARTICLE II MEETINGS OF STOCKHOLDERS 1 Section 1. Place of Meetings 1 Section 2. Annual Meeting 1 Section 3. Special Meetings 4 Section 4. Notice of Meetings; Waiver 4 Section 5. Quorum; Adjo
June 9, 2022	11-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQ
June 9, 2022	11-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQ
June 8, 2022	S-8	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 ALLEGHENY TECHNOLOGIES INCORPORATED (Exact name of registrant as specified in its charter) Delaware 25-1792394 (State or other jurisd Registration No. 333- SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ALLEGHENY TECHNOLOGIES INCORPORATED (Exact name of registrant as specified in its charter) Delaware 25-1792394 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 1000 Six PPG Place Pittsburgh, Pennsylvania
June 8, 2022	EX-FILING FEES	Filing Fee Table. Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Allegheny Technologies Incorporated (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Common Stock, par value $0.
June 8, 2022	S-8 POS	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 FORM S-8 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 ALLEGHENY TECHNOLOGIES INCORPORATED (Exact name of registrant as specified in its charter) Delaware 25 Registration No. 333-238169 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 to FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ALLEGHENY TECHNOLOGIES INCORPORATED (Exact name of registrant as specified in its charter) Delaware 25-1792394 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 1000
May 31, 2022	SD	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM SD Specialized Disclosure Report Allegheny Technologies Incorporated (Exact Name of Registrant as Specified in Charter) Delaware 1-12001 25-1792394 (State or Other Jurisdictio SD 1 d312845dsd.htm FORM SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM SD Specialized Disclosure Report Allegheny Technologies Incorporated (Exact Name of Registrant as Specified in Charter) Delaware 1-12001 25-1792394 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 1000 Six PPG Place, Pittsburgh, Pennsylv
May 13, 2022	8-K	Submission of Matters to a Vote of Security Holders UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2022 (May 12, 2022) Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
May 4, 2022	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2022 ☐ TRANSITION REPORT PURSUANT TO UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ALLEGHENY TECHNOLOGIES
May 4, 2022	EX-99.1	ATI Announces First Quarter 2022 Results Aerospace-driven growth continues, with ongoing focus on ramp readiness to support customers NEWS RELEASE Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A.
May 4, 2022	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2022 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
April 27, 2022	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of
April 11, 2022	LETTER	LETTER United States securities and exchange commission logo April 11, 2022 Donald Newman Chief Financial Officer ALLEGHENY TECHNOLOGIES INC 1000 Six PPG Place Pittsburgh, Pennsylvania 15222 Re: ALLEGHENY TECHNOLOGIES INC Form 10-K for the Year Ended December 31, 2021 Form 8-K furnished February 2, 2022 File No.
March 30, 2022	CORRESP	March 30, 2022 CORRESP 1 filename1.htm 1000 Six PPG Place Pittsburgh, PA 15222-5479 WWW.ATIMETALS.COM March 30, 2022 United States Securities and Exchange Commission Division of Corporation Finance 100 F. Street N.E. Washington, D.C. 20549-7010 Attn: Claire Erlanger RE: Allegheny Technologies Incorporated File No. 1-12001 Dear Ms. Erlanger: This letter sets forth our response to the letter (the “Comment Letter”)
March 25, 2022	DEF 14A	Allegheny Technologies Incorporated 2022 Incentive Plan (incorporated by reference to Appendix A to the Registrant’s Definitive Proxy Statement filed on March 25, 2022 (File No 1-12001)). DEF 14A 1 d448952ddef14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐
March 25, 2022	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant To Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of
March 23, 2022	LETTER	LETTER United States securities and exchange commission logo March 23, 2022 Donald Newman Chief Financial Officer ALLEGHENY TECHNOLOGIES INC 1000 Six PPG Place Pittsburgh, Pennsylvania 15222 Re: ALLEGHENY TECHNOLOGIES INC Form 10-K for the Year Ended December 31, 2021 Form 8-K furnished February 2, 2022 File No.
March 9, 2022	8-K	Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2022 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
March 9, 2022	EX-99.1	Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A. Minder Natalie Gillespie 1000 Six PPG Place 412-395-2720 412-394-2850 Pittsburgh, PA 15222-5479 U.S.A. [email protected] natalie.gillespie@a NEWS RELEASE Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A.
March 3, 2022	8-K	Regulation FD Disclosure, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 3, 2022 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
February 25, 2022	10-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2021 OR ? Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number 1-12001 ALLEGHENY TECHNOL
February 25, 2022	EX-18.1	LIFO Preferability Lette Exhibit 18.1 February 25, 2022 Board of Directors Allegheny Technologies Incorporated 1000 Six PPG Place Pittsburgh, PA 15222 Ladies and Gentlemen: Note 1 of the Notes to the consolidated financial statements of Allegheny Technologies Incorporated included in its Annual Report on Form 10-K for the year ended December 31, 2021 describes a change in the method of accounting for valuing inventories t
February 25, 2022	EX-21.1	Subsidiaries of the Registrant (filed herewith). Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT The following lists the subsidiaries of Allegheny Technologies Incorporated, excluding those subsidiaries which, considered in the aggregate as a single subsidiary, do not constitute a significant subsidiary. Name of Subsidiary State or Country of Incorporation ALC Funding Corporation Delaware Allegheny Ludlum, LLC Pennsylvania ATI Flat Rolled Products H
February 25, 2022	EX-10.15	Form of Performance-Vested Restricted Stock Unit Agreement (incorporated by reference to Exhibit 10-15 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2021 (File No. 1-12001)* Exhibit 10.15 FORM OF BREAKOUT PERFORMANCE AWARD AGREEMENT PURSUANT TO THE ALLEGHENY TECHNOLOGIES INCORPORATED 2020 INCENTIVE PLAN This Breakout Performance Award Agreement (this ?Agreement?) is made as of the 4th day of January, 2022 (the ?Grant Date?) by and between ALLEGHENY TECHNOLOGIES INCORPORATED, a Delaware company (the ?Company?), and [Participant Name] (the ?Participant?). WHEREAS, the C
February 11, 2022	SC 13G/A	ATI / Allegheny Technologies Incorporated / Capital International Investors - SEC SCHEDULE 13G Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Allegheny Technologies Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 01741R102 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which
February 10, 2022	SC 13G/A	ATI / Allegheny Technologies Incorporated / STATE STREET CORP Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 AMENDED FILING ALLEGHENY TECHNOLOGIES INC (NAME OF ISSUER) COMMON STOCK (TITLE OF CLASS OF SECURITIES) 01741R102 (CUSIP NUMBER) 12/31/2021 (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT) CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE PURSUANT TO WHICH THIS SCHEDUL
February 9, 2022	SC 13G/A	ATI / Allegheny Technologies Incorporated / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: Allegheny Technologies Inc. Title of Class of Securities: Common Stock CUSIP Number: 01741R102 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is
February 8, 2022	SC 13G/A	ATI / Allegheny Technologies Incorporated / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Allegheny Technologies Inc (Name of Issuer) Common Stock (Title of Class of Securities) 01741R102 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate
February 2, 2022	8-K	Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 2, 2022 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
February 2, 2022	EX-99.2	ATI Board of Directors Authorizes $150 Million Share Repurchase NEWS RELEASE Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A.
February 2, 2022	EX-99.1	ATI Announces Fourth Quarter 2021 Results Strong growth and profit margin expansion as aerospace recovery accelerates NEWS RELEASE Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A.
January 27, 2022	SC 13G/A	ATI / Allegheny Technologies Incorporated / BlackRock Inc. Passive Investment SC 13G/A 1 us01741r1023012722.txt us01741r1023012722.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 7) ALLEGHENY TECHNOLOGIES INCORPORATED - (Name of Issuer) Common Stock - (Title of Class of Securities) 01741R102 - (CUSIP Number) December 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check th
January 26, 2022	SC 13G/A	ATI / Allegheny Technologies Incorporated / BlackRock Inc. Passive Investment SC 13G/A 1 us01741r1023012522.txt us01741r1023012522.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 6) ALLEGHENY TECHNOLOGIES INCORPORATED - (Name of Issuer) Common Stock - (Title of Class of Securities) 01741R102 - (CUSIP Number) December 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check th
November 2, 2021	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2021 ☐ TRANSITION REPORT PURSUANT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ALLEGHENY TECHNOLOG
October 28, 2021	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2021 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
October 28, 2021	EX-99.1	ATI Announces Third Quarter 2021 Results Return to profitability fueled by aerospace market recovery and business transformation NEWS RELEASE Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A.
October 21, 2021	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 21, 2021 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
October 21, 2021	EX-99.1	Kimberly Fields Named Chief Operating Officer, Don Newman EVP Driving revenue growth through tightly aligned operations and financial discipline Exhibit 99.1 NEWS RELEASE Allegheny Technologies Incorporated Corporate Headquarters 1000 Six PPG Place Pittsburgh, PA 15222-5479 U.S.A. www.ATImetals.com Investor Contact: Scott A. Minder 412-395-2720 [email protected] Media Contact: Natalie Gillespie 412-394-2850 [email protected] Kimberly Fields Named Chief Operating Officer, Don Newman EVP Driving revenue growth through
September 14, 2021	EX-1.1	Underwriting Agreement, dated as of September 9, 2021, by and between Allegheny Technologies Incorporated and BofA Securities, Inc., as representative of the underwriters named therein. Exhibit 1.1 EXECUTION VERSION BOFA SECURITIES, INC. ALLEGHENY TECHNOLOGIES INCORPORATED 4.875% Senior Notes due 2029 5.125% Senior Notes due 2031 Underwriting Agreement September 9, 2021 BOFA SECURITIES, INC. As Representative of the several Underwriters listed in Schedule I hereto c/o BofA Securities, Inc. One Bryant Park New York, New York 10036 Ladies and Gentlemen: Allegheny Technologies Incor
September 14, 2021	EX-4.1	(incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed on September 14, 2021 (File No. 1-12001)). Exhibit 4.1 ALLEGHENY TECHNOLOGIES INCORPORATED and WELLS FARGO BANK, NATIONAL ASSOCIATION, Trustee INDENTURE Dated as of September 14, 2021 SENIOR DEBT SECURITIES ALLEGHENY TECHNOLOGIES INCORPORATED Certain Sections of this Indenture relating to Sections 310 through 318, inclusive, of the Trust Indenture Act of 1939, as amended Trust Indenture Act Section Indenture Section Section 310(a)(1) 609 (
September 14, 2021	EX-4.2	Form of 5.125% Senior Note due 2031 (incorporated by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K dated September 14, 2021 (File No. 1-12001)) Exhibit 4.2 EXECUTION COPY ALLEGHENY TECHNOLOGIES INCORPORATED and WELLS FARGO BANK, NATIONAL ASSOCIATION, as Trustee FIRST SUPPLEMENTAL INDENTURE DATED AS OF SEPTEMBER 14, 2021 TO THE INDENTURE DATED AS OF SEPTEMBER 14, 2021 $325,000,000 principal amount of 4.875% Senior Notes due 2029 $350,000,000 principal amount of 5.125% Senior Notes due 2031 Table of Contents Page ARTICLE I DEFINITIONS 2 SEC
September 14, 2021	8-K	Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) September 9, 2021 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
September 10, 2021	424B5	CALCULATION OF REGISTRATION FEE Title of each class of securities offered Amount to be registered Maximum offering price per unit Maximum aggregate offering price Amount of registration fee(1) 4.875% Notes due 2029 $325,000,000 100% $325,000,000 $35, 424B5 1 d196748d424b5.htm 424B5 Table of Contents CALCULATION OF REGISTRATION FEE Title of each class of securities offered Amount to be registered Maximum offering price per unit Maximum aggregate offering price Amount of registration fee(1) 4.875% Notes due 2029 $325,000,000 100% $325,000,000 $35,457.50 5.125% Notes due 2031 $350,000,000 100% $350,000,000 $38,185.00 Total $675,000,000 $675,000,0
September 10, 2021	EX-99.1	Allegheny Technologies Announces Pricing of Senior Notes Offering Exhibit 99.1 NEWS RELEASE Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A. Minder Natalie Gillespie 1000 Six PPG Place 412-395-2720 412-394-2850 Pittsburgh, PA 15222-5479 U.S.A. [email protected] [email protected] www.ATImetals.com Allegheny Technologies Announces Pricing of Senior Notes Offering PITTSBURGH, Pennsylvania ?
September 10, 2021	8-K	Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) September 9, 2021 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
September 9, 2021	FWP	Pricing Term Sheet Allegheny Technologies Incorporated $325,000,000 4.875% Senior Notes due 2029 $350,000,000 5.125 % Senior Notes due 2031 Filed Pursuant to Rule 433 Registration Statement No. 333-254906 September 9, 2021 Pricing Term Sheet Allegheny Technologies Incorporated $325,000,000 4.875% Senior Notes due 2029 $350,000,000 5.125 % Senior Notes due 2031 This term sheet to the preliminary prospectus supplement dated September 8, 2021 should be read together with the preliminary prospectus supplement before making a decision in c
September 8, 2021	8-K	Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) September 8, 2021 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
September 8, 2021	424B3	SUBJECT TO COMPLETION, DATED SEPTEMBER 8, 2021 Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-254906 The information in this preliminary prospectus supplement and the accompanying prospectus is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and they are not soliciting an offer to buy these securities in any state where th
September 8, 2021	EX-99.1	Allegheny Technologies Announces Proposed Senior Notes Offering Exhibit 99.1 Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A. Minder Natalie Gillespie 1000 Six PPG Place 412-395-2720 412-394-2850 Pittsburgh, PA 15222-5479 U.S.A. [email protected] [email protected] www.ATImetals.com Allegheny Technologies Announces Proposed Senior Notes Offering PITTSBURGH, Pennsylvania ? September 8, 20
August 16, 2021	8-K	Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 16, 2021 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
August 16, 2021	EX-99.1	ATI Completes Sale of Flowform Products to Consolidated Boring, Inc. Exhibit 99.1 NEWS RELEASE Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A. Minder Natalie Gillespie 1000 Six PPG Place 412-395-2720 412-394-2850 Pittsburgh, PA 15222-5479 U.S.A. [email protected] [email protected] www.ATImetals.com ATI Completes Sale of Flowform Products to Consolidated Boring, Inc. PITTSBURGH, PA?August 16
August 3, 2021	10-Q	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2021 ☐ TRANSITION REPORT PURSUANT TO S UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ALLEGHENY TECHNOLOGIES I
August 3, 2021	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2021 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
August 3, 2021	EX-99.1	ATI Announces Second Quarter 2021 Results Aerospace recovery continues to gain momentum Labor strike resolved, business transformation on track NEWS RELEASE Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A.
August 3, 2021	EX-10.1	Addendum to Performance-Vested Restricted Stock Unit Agreement (filed herewith). Exhibit 10.1 ADDENDUM TO PERFORMANCE-VESTED RESTRICTED STOCK UNIT AGREEMENT PURSUANT TO THE ALLEGHENY TECHNOLOGIES INCORPORATED 2020 INCENTIVE PLAN This Addendum (this ?Addendum?) to that certain Performance-Vested Restricted Stock Unit Agreement (the ?Agreement?) dated as of the 4th day of January, 2021 (the ?Grant Date?) by and between ALLEGHENY TECHNOLOGIES INCORPORATED, a Delaware company (the
July 6, 2021	8-K	Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 6, 2021 Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
July 6, 2021	EX-99.1	ATI and United Steelworkers Reach Tentative Agreement Exhibit 99.1 NEWS RELEASE Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A. Minder Natalie Gillespie 1000 Six PPG Place 412-395-2720 412-394-2850 Pittsburgh, PA 15222-5479 U.S.A. [email protected] [email protected] www.ATImetals.com ATI and United Steelworkers Reach Tentative Agreement PITTSBURGH, PA?July 6, 2021?Allegheny T
June 10, 2021	11-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 11-K 1 fy202011katiretirementplan.htm 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2020 ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE
June 10, 2021	11-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 11-K 1 fy202011-kati401ksavingspl.htm 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2020 ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE
June 1, 2021	SD	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM SD Specialized Disclosure Report Allegheny Technologies Incorporated (Exact Name of Registrant as Specified in Charter) Delaware 1-12001 25-1792394 (State or Other Jurisdictio SD 1 d175553dsd.htm SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM SD Specialized Disclosure Report Allegheny Technologies Incorporated (Exact Name of Registrant as Specified in Charter) Delaware 1-12001 25-1792394 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 1000 Six PPG Place, Pittsburgh, Pennsylvania
May 21, 2021	8-K	Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 21, 2021 (May 20, 2021) Allegheny Technologies Incorporated (Exact name of registrant as specified in its charter) Delaware 1-12001 25-1792394 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.
May 21, 2021	EX-99.1	CEO Robert S. Wetherbee Becomes ATI Board Chair J. Brett Harvey named Lead Independent Director Exhibit 99.1 Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A. Minder Natalie Gillespie 1000 Six PPG Place 412-395-2720 412-394-2850 Pittsburgh, PA 15222-5479 U.S.A. [email protected] [email protected] www.ATImetals.com CEO Robert S. Wetherbee Becomes ATI Board Chair J. Brett Harvey named Lead Independent Director PITTSBURGH
May 10, 2021	SC 13G/A	SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Allegheny Technologies Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 01741R102 (CUSIP Number) April 30, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which th
April 29, 2021	10-Q	Quarterly Report - 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-12001 ALLEGHENY TECHNOLOGIES
April 29, 2021	EX-99.1	ATI Announces First Quarter 2021 Results Exceeds expectations with benefit from strong raw material price tailwinds Ongoing modest recovery in jet engine production NEWS RELEASE Allegheny Technologies Incorporated Investor Contact: Media Contact: Corporate Headquarters Scott A.

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