ATI Inc.
MX ˙ BMV ˙ US01741R1023
SecurityMX:ATI / ATI Inc.
InstitutionJpmorgan Chase & Co
Latest Disclosed Ownership407,423 shares
Latest Disclosed Value $ 55,205,819
Jpmorgan Chase & Co ownership in ATI / ATI Inc.

On May 13, 2026 - Jpmorgan Chase & Co filed a 13F-HR/A form disclosing ownership of 407,423 shares of ATI Inc. (MX:ATI) valued at $55,205,819 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 354,881 shares of ATI Inc.. This represents a change in shares of 14.81% during the quarter.

Jpmorgan Chase & Co has a history of taking positions in derivatives of the underlying security (ATI) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:ATI / ATI Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F/A-1 ATI COMMON 01741R102 407,423 52,542 14.81 55,206 35.55 0.0035
2026-02-11 2025-12-31 13F ATI COMMON 01741R102 354,881 21,690 6.51 40,726 50.27 0.0026
2025-11-26 2025-09-30 13F/A-1 ATI COMMON 01741R102 333,191 -100,478 -23.17 27,102 -27.62 0.0016
2025-11-07 2025-09-30 13F ATI COMMON 01741R102 333,191 -100,478 27,102 0.0002
2025-08-12 2025-06-30 13F ATI COMMON 01741R102 433,669 53,128 13.96 37,443 89.11 0.0024
2025-05-12 2025-03-31 13F ATI COMMON 01741R102 380,541 142,080 59.58 19,800 50.86 0.0014
2025-02-12 2024-12-31 13F ATI COMMON 01741R102 238,461 -44,799 -15.82 13,125 -30.75 0.0010
2024-12-26 2024-09-30 13F/A-1 ATI COMMON 01741R102 283,260 182 0.06 18,953 20.74 0.0014
2024-11-08 2024-09-30 13F ATI COMMON 01741R102 283,260 182 18,953 0.0014
2024-12-26 2024-06-30 13F/A-1 ATI COMMON 01741R102 283,078 -160,825 -36.23 15,697 -30.90 0.0013
2024-08-12 2024-06-30 13F ATI COMMON 01741R102 283,078 -160,825 15,697 0.0013
2024-12-26 2024-03-31 13F/A-1 ATI COMMON 01741R102 443,903 81,313 22.43 22,715 37.78 0.0019
2024-05-10 2024-03-31 13F ATI COMMON 01741R102 443,903 81,313 22,715 0.0019
2024-12-26 2023-12-31 13F/A-1 ATI COMMON 01741R102 362,590 83,629 29.98 16,487 43.62 0.0016
2024-02-12 2023-12-31 13F ATI COMMON 01741R102 362,590 83,629 16,487 0.0016
2023-11-14 2023-09-30 13F ATI COMMON 01741R102 278,961 -75,429 -21.28 11,479 -26.76 0.0013
2023-08-11 2023-06-30 13F ATI COMMON 01741R102 354,390 -118,521 -25.06 15,675 -16.01 0.0017
2023-05-18 2023-03-31 13F/A-1 ATI COMMON 01741R102 472,911 176,296 59.44 18,662 233,175.00 0.0023
2023-05-11 2023-03-31 13F ATI COMMON 01741R102 314,429 17,814 18,661 0.0003
2023-02-13 2022-12-31 13F ATI COMMON 01741R102 296,615 -65,822 -18.16 9 -99.92 0.0012
2022-11-14 2022-09-30 13F ATI COMMON 01741R102 362,437 -133,132 -26.86 9,645 -14.30 0.0014
2022-08-11 2022-06-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 495,569 90,358 22.30 11,254 3.49 0.0016
2022-05-11 2022-03-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 405,211 282,590 230.46 10,875 457.12 0.0013
2022-02-11 2021-12-31 13F/A-1 ALLEGHENY TECHNOLOGIES COMMON 01741R102 122,621 -717,921 -85.41 1,952 -86.04 0.0002
2022-02-10 2021-12-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 122,621 -717,921 1,952 0.0002
2021-11-12 2021-09-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 840,542 33,911 4.20 13,978 -16.89 0.0017
2021-08-12 2021-06-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 806,631 -705,801 -46.67 16,819 -47.20 0.0020
2021-05-12 2021-03-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 1,512,432 39,618 2.69 31,852 28.96 0.0043
2021-02-19 2020-12-31 13F/A-1 ALLEGHENY TECHNOLOGIES COMMON 01741R102 1,472,814 1,243,491 542.24 24,699 1,132.49 0.0036
2021-02-11 2020-12-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 1,472,814 1,243,491 24,699 610.8239
2020-11-12 2020-09-30 13F/A-1 ALLEGHENY TECHNOLOGIES COMMON 01741R102 229,323 44,046 23.77 2,004 6.14 0.0003
2020-11-12 2020-09-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 229,323 2,004
2020-08-11 2020-06-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 185,277 53,209 40.29 1,888 68.12 0.0004
2020-05-12 2020-03-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 132,068 -67,544 -33.84 1,123 -72.77 0.0003
2020-02-11 2019-12-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 199,612 -6,853 -3.32 4,124 -1.36 0.0008
2019-11-12 2019-09-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 206,465 39,333 23.53 4,181 0.84 0.0008
2019-08-07 2019-06-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 167,132 5,479 3.39 4,146 0.29 0.0008
2019-05-07 2019-03-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 161,653 -7,669 -4.53 4,134 12.15 0.0008
2019-02-11 2018-12-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 169,322 930 0.55 3,686 -25.92 0.0009
2018-11-13 2018-09-30 13F/A-1 ALLEGHENY TECHNOLOGIES COMMON 01741R102 168,392 88,253 110.12 4,976 147.19 0.0010
2018-11-07 2018-09-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 168,392 88,253 4,976
2018-08-14 2018-06-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 80,139 3,115 4.04 2,013 10.36 0.0004
2018-05-10 2018-03-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 77,024 -4,602 -5.64 1,824 -7.46 0.0004
2018-02-13 2017-12-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 81,626 77,416 1,838.86 1,971 1,871.00 0.0004
2017-11-09 2017-09-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 4,210 2,558 154.84 100 257.14 0.0000
2017-08-09 2017-06-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 1,652 235 16.58 28 12.00 0.0000
2017-05-10 2017-03-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 1,417 161 12.82 25 25.00 0.0000
2017-02-06 2016-12-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 1,256 -257 -16.99 20 5.26 0.0000
2016-08-08 2016-06-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 1,513 -727 -32.46 19 -48.65 0.0000
2016-05-10 2016-03-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 2,240 -39,395 -94.62 37 -92.09 0.0000
2016-02-12 2015-12-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 41,635 41,635 0.00 468 0.0001
2015-11-13 2015-09-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 0 -55,938 -100.00 0 -100.00
2015-08-14 2015-06-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 55,938 -70,008 -55.59 1,689 -55.31 0.0004
2015-05-15 2015-03-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 125,946 -33,041 -20.78 3,779 -31.61 0.0009
2015-02-13 2014-12-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 158,987 -54,700 -25.60 5,526 -30.29 0.0013
2014-12-08 2014-09-30 13F/A-1 ALLEGHENY TECHNOLO COMMON 01741R102 213,687 -14,067 -6.18 7,927 -22.83 0.0019
2014-11-14 2014-09-30 13F ALLEGHENY TECHNOLO COMMON 01741R102 213,687 7,927
2014-09-03 2014-06-30 13F/A-1 ALLEGHENY TECHNOLO COMMON 01741R102 227,754 10,844 5.00 10,272 25.68 0.0026
2014-08-14 2014-06-30 13F ALLEGHENY TECHNOLO COMMON 01741R102 227,754 10,272
2014-05-15 2014-03-31 13F ALLEGHENY TECHNOLO COMMON 01741R102 216,910 -64,892 -23.03 8,173 -18.59 0.0023
2014-02-26 2013-12-31 13F/A-1 ALLEGHENY TECHNOLO COMMON 01741R102 281,802 -198,497 -41.33 10,039 -31.51 0.0028
2014-02-13 2013-12-31 13F ALLEGHENY TECHNOLO COMMON 01741R102 281,802 10,039
2013-10-31 2013-09-30 13F ALLEGHENY TECHNOLO COMMON 01741R102 480,299 173,643 56.62 14,658 81.70 0.0043
2013-08-13 2013-06-30 13F ALLEGHENY TECHNOLO COMMON 01741R102 306,656 306,656 8,067 0.0026
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-26 2025-09-30 13F/A ATI OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-07 2025-09-30 13F ATI OPTION Call 0 0 n/a n/a n/a
2025-08-12 2025-06-30 13F ATI OPTION Call 34,600 2,987 n/a n/a n/a
2022-02-11 2021-12-31 13F/A ALLEGHENY TECHNOLOGIES OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-10 2021-12-31 13F ALLEGHENY TECHNOLOGIES OPTION Call 0 0 n/a n/a n/a
2021-11-12 2021-09-30 13F ALLEGHENY TECHNOLOGIES OPTION Call 12,000 -1.64 200 -21.26 n/a n/a n/a
2021-08-12 2021-06-30 13F ALLEGHENY TECHNOLOGIES OPTION Call 12,200 0.83 254 -0.39 n/a n/a n/a
2021-05-12 2021-03-31 13F ALLEGHENY TECHNOLOGIES OPTION Call 12,100 13.08 255 42.46 n/a n/a n/a
2021-02-19 2020-12-31 13F/A ALLEGHENY TECHNOLOGIES OPTION Call 10,700 179 n/a n/a n/a
2021-02-11 2020-12-31 13F ALLEGHENY TECHNOLOGIES OPTION Call 10,700 179 n/a n/a n/a
2015-08-14 2015-06-30 13F ALLEGHENY TECHNOLOGIES OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-15 2015-03-31 13F ALLEGHENY TECHNOLOGIES OPTION Call 300 -94.34 9 -95.11 n/a n/a n/a
2015-02-13 2014-12-31 13F ALLEGHENY TECHNOLOGIES OPTION Call 5,300 -15.87 184 -21.37 n/a n/a n/a
2014-12-08 2014-09-30 13F/A ALLEGHENY TECHNOLO OPTION Call 6,300 -59.35 234 -57.61 n/a n/a n/a
2014-11-14 2014-09-30 13F ALLEGHENY TECHNOLO OPTION Call 6,300 234 n/a n/a n/a
2014-02-26 2013-12-31 13F/A ALLEGHENY TECHNOLO OPTION Call 15,500 -1.90 552 14.52 n/a n/a n/a
2014-02-13 2013-12-31 13F ALLEGHENY TECHNOLO OPTION Call 15,500 552 n/a n/a n/a
2013-10-31 2013-09-30 13F ALLEGHENY TECHNOLO OPTION Call 15,800 -4.24 482 11.06 n/a n/a n/a
2013-08-13 2013-06-30 13F ALLEGHENY TECHNOLO OPTION Call 16,500 434 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-02-11 2025-12-31 13F ATI OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-26 2025-09-30 13F/A ATI OPTION Put 41,600 3,384 n/a n/a n/a
2025-11-07 2025-09-30 13F ATI OPTION Put 41,600 3,384 n/a n/a n/a
2021-11-12 2021-09-30 13F ALLEGHENY TECHNOLOGIES OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-12 2021-06-30 13F ALLEGHENY TECHNOLOGIES OPTION Put 800 0.00 17 0.00 n/a n/a n/a
2021-05-12 2021-03-31 13F ALLEGHENY TECHNOLOGIES OPTION Put 800 17 n/a n/a n/a
2021-02-19 2020-12-31 13F/A ALLEGHENY TECHNOLOGIES OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-12 2020-09-30 13F/A ALLEGHENY TECHNOLOGIES OPTION Put 91,500 -35.34 800 -44.52 n/a n/a n/a
2020-11-12 2020-09-30 13F ALLEGHENY TECHNOLOGIES OPTION Put 91,500 800 n/a n/a n/a
2020-08-11 2020-06-30 13F ALLEGHENY TECHNOLOGIES OPTION Put 141,500 1,442 n/a n/a n/a
2015-05-15 2015-03-31 13F ALLEGHENY TECHNOLOGIES OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-13 2014-12-31 13F ALLEGHENY TECHNOLOGIES OPTION Put 500 400.00 17 325.00 n/a n/a n/a
2014-12-08 2014-09-30 13F/A ALLEGHENY TECHNOLO OPTION Put 100 -98.84 4 -98.69 n/a n/a n/a
2014-11-14 2014-09-30 13F ALLEGHENY TECHNOLO OPTION Put 100 4 n/a n/a n/a
2014-02-26 2013-12-31 13F/A ALLEGHENY TECHNOLO OPTION Put 8,600 0.00 306 16.79 n/a n/a n/a
2014-02-13 2013-12-31 13F ALLEGHENY TECHNOLO OPTION Put 8,600 306 n/a n/a n/a
2013-10-31 2013-09-30 13F ALLEGHENY TECHNOLO OPTION Put 8,600 -1.15 262 14.41 n/a n/a n/a
2013-08-13 2013-06-30 13F ALLEGHENY TECHNOLO OPTION Put 8,700 229 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.