ATI Inc.
US ˙ NYSE ˙ US01741R1023

SecurityATI / ATI Inc.
InstitutionFmr Llc
Latest Disclosed Ownership4,941,271 shares
Ownership 3.50%
Fmr Llc ownership in ATI / ATI Inc.

2025-05-12 - Fmr Llc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,941,271 shares of ATI Inc. (US:ATI). This represents 3.5 percent ownership of the company. In their previous filing dated 2025-02-12 , Fmr Llc had reported owning 7,331,157 shares, indicating a decrease of -32.60 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2025-05-12 2025-05-12 13G/A 7,331,157 4,941,271 -32.60 3.50 -31.37
2025-02-12 2025-02-12 13G/A 9,990,719 7,331,157 -26.62 5.10 -36.46
2024-11-12 2024-11-12 13G 9,990,719 8.03

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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.

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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)
2026-05-15 2026-03-31 13F ATI COM 01741R102 5,247,175 172,351 3.40 763,254 31.06 0.0080
2026-02-17 2025-12-31 13F ATI COM 01741R102 5,074,824 175,654 3.59 582,387 46.15 0.0297
2025-11-13 2025-09-30 13F ATI COM 01741R102 4,899,170 1,485,389 43.51 398,498 35.20 0.0207
2025-08-14 2025-06-30 13F ATI COM 01741R102 3,413,781 -814,271 -19.26 294,746 33.98 0.0166
2025-05-12 2025-03-31 13F ATI COM 01741R102 4,228,052 -2,393,831 -36.15 219,986 -39.64 0.0140
2025-02-13 2024-12-31 13F ATI COM 01741R102 6,621,883 -2,659,510 -28.65 364,468 -41.31 0.0218
2024-11-13 2024-09-30 13F ATI COM 01741R102 9,281,393 2,020,539 27.83 621,018 54.25 0.0378
2024-08-13 2024-06-30 13F ATI COM 01741R102 7,260,854 1,527,524 26.64 402,614 37.24 0.0258
2024-05-13 2024-03-31 13F ATI COM 01741R102 5,733,330 2,421,056 73.09 293,375 94.79 0.0197
2024-02-13 2023-12-31 13F ATI COM 01741R102 3,312,274 107,716 3.36 150,609 14.21 0.0116
2023-11-13 2023-09-30 13F ATI COM 01741R102 3,204,558 -91,306 -2.77 131,868 -9.54 0.0114
2023-08-11 2023-06-30 13F ATI COM 01741R102 3,295,864 660,958 25.08 145,776 40.21 0.0122
2023-08-11 2023-03-31 13F/A-1 ATI COM 01741R102 2,634,906 904,881 52.30 103,973 101.27 0.0095
2023-05-11 2023-03-31 13F ATI COM 01741R102 2,634,906 904,881 103,973 0.0095
2023-02-13 2022-12-31 13F ATI COM 01741R102 1,730,025 473,896 37.73 51,659 54.55 0.0051
2022-11-10 2022-09-30 13F ATI COM 01741R102 1,256,129 38,363 3.15 33,425 20.86 0.0035
2022-08-12 2022-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 1,217,766 61,436 5.31 27,656 -10.89 0.0028
2022-05-13 2022-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 1,156,330 -154,880 -11.81 31,035 48.58 0.0025
2022-02-14 2021-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 1,311,210 -761,260 -36.73 20,888 -39.39 0.0015
2022-02-14 2021-09-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 2,072,470 -1,431,708 -40.86 34,465 -52.83 0.0027
2021-11-15 2021-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 2,072,470 -1,431,708 34,465 0.0027
2021-08-13 2021-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 3,504,178 3,503,531 541,504.02 73,062 561,915.38 0.0057
2021-05-14 2021-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 647 250 62.97 13 85.71 0.0000
2021-02-08 2020-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 397 -30 -7.03 7 133.33 0.0000
2020-11-13 2020-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 427 -9 -2.06 3 -25.00 0.0000
2020-08-24 2020-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 436 -57,055 -99.24 4 -99.18 0.0000
2020-08-13 2020-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 436 -57,055 4 0.0983
2020-05-14 2020-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 57,491 54,076 1,583.48 489 598.57 0.0001
2020-02-07 2019-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 3,415 572 20.12 70 22.81 0.0000
2019-11-13 2019-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 2,843 879 44.76 57 16.33 0.0000
2019-08-13 2019-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 1,964 -368,029 -99.47 49 -99.48 0.0000
2019-05-13 2019-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 369,993 108,291 41.38 9,461 66.07 0.0011
2019-02-13 2018-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 261,702 259,181 10,280.88 5,697 7,598.65 0.0008
2018-11-09 2018-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 2,521 2,521 74 0.0000
2018-08-10 2018-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 -332,400 -100.00 0 -100.00
2018-05-14 2018-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 332,400 37,900 12.87 7,871 10.72 0.0009
2018-02-12 2017-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 294,500 294,500 7,109 0.0008
2015-11-10 2015-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 -37,331 -100.00 0 -100.00
2015-08-25 2015-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 37,331 -14,417 -27.86 1,127 -27.43 0.0001
2015-08-13 2015-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 37,331 1,127
2015-05-14 2015-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 51,748 1,498 2.98 1,553 -11.10 0.0002
2015-02-17 2014-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 50,250 -5,761 -10.29 1,747 -15.93 0.0002
2014-11-14 2014-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 56,011 -468,317 -89.32 2,078 -91.21 0.0003
2014-08-14 2014-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 524,328 490,109 1,432.27 23,647 1,734.52 0.0032
2014-05-15 2014-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 34,219 125 0.37 1,289 6.09 0.0002
2014-02-13 2013-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 34,094 -67 -0.20 1,215 16.49 0.0002
2013-11-14 2013-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 34,161 -734 -2.10 1,043 13.62 0.0002
2013-09-24 2013-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 34,895 34,895 918 0.0002
2013-08-14 2013-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 34,895 918 0.0002
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.