ATI Inc.
US ˙ NYSE ˙ US01741R1023

SecurityATI / ATI Inc.
InstitutionBowen Hanes & Co Inc
Latest Disclosed Ownership1,043,105 shares
Latest Disclosed Value $ 151,730,053
Bowen Hanes & Co Inc reports 11.43% decrease in ownership of ATI / ATI Inc.

On May 14, 2026 - Bowen Hanes & Co Inc filed a 13F-HR form disclosing ownership of 1,043,105 shares of ATI Inc. (US:ATI) valued at $151,730,053 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 1,177,705 shares of ATI Inc.. This represents a change in shares of -11.43% during the quarter. The current value of the position is $188,906,316 USD.

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)
2026-05-14 2026-03-31 13F ATI COM 01741R102 1,043,105 -134,600 -11.43 151,730 112,292.59 3.6949
2026-02-10 2025-12-31 13F ATI COM 01741R102 1,177,705 -151,515 -11.40 135 -99.88 3.3911
2025-11-10 2025-09-30 13F ATI COM 01741R102 1,329,220 -46,340 -3.37 108,119 -8.96 2.7070
2025-08-12 2025-06-30 13F ATI COM 01741R102 1,375,560 4,225 0.31 118,766 66.45 2.9967
2025-05-14 2025-03-31 13F ATI COM 01741R102 1,371,335 4,420 0.32 71,351 -5.16 1.9848
2025-02-10 2024-12-31 13F ATI COM 01741R102 1,366,915 1,735 0.13 75,235 -17.64 2.0173
2024-11-12 2024-09-30 13F ATI COM 01741R102 1,365,180 -18,245 -1.32 91,344 19.08 2.3967
2024-08-12 2024-06-30 13F ATI COM 01741R102 1,383,425 -7,825 -0.56 76,711 107,942.25 2.1247
2024-05-13 2024-03-31 13F ATI COM 01741R102 1,391,250 -8,900 -0.64 71 -99.89 2.0335
2024-02-12 2023-12-31 13F ATI COM 01741R102 1,400,150 33,765 2.47 63,665 13.23 1.9196
2023-11-13 2023-09-30 13F ATI COM 01741R102 1,366,385 -45,170 -3.20 56,227 -9.94 1.8922
2023-08-14 2023-06-30 13F ATI COM 01741R102 1,411,555 -27,190 -1.89 62,433 9.97 1.9997
2023-05-12 2023-03-31 13F ATI COM 01741R102 1,438,745 -42,110 -2.84 56,773 28.39 1.9509
2023-02-09 2022-12-31 13F ATI COM 01741R102 1,480,855 -13,310 -0.89 44,218 11.21 1.5680
2022-11-14 2022-09-30 13F ATI COM 01741R102 1,494,165 -200 -0.01 39,760 17.16 1.5375
2022-08-12 2022-06-30 13F ATI COM 01741R102 1,494,365 -4,200 -0.28 33,937 -15.62 1.2307
2022-05-12 2022-03-31 13F ALLEGHENY TECH COM 01741R102 1,498,565 1,486,650 12,477.13 40,221 38,574.04 1.1997
2021-02-08 2020-09-30 13F/A-1 ALLEGHENY TECH COM 01741R102 11,915 -11,825 -49.81 104 -57.02 0.0038
2020-11-02 2020-09-30 13F ALLEGHENY TECH COM 01741R102 11,915 -11,825 104 3,921.1546
2021-02-08 2020-06-30 13F/A-1 ALLEGHENY TECH COM 01741R102 23,740 -17,000 -41.73 242 -30.06 0.0098
2020-08-14 2020-06-30 13F ALLEGHENY TECH COM 01741R102 23,740 -17,000 242 10,185.4810
2021-02-08 2020-03-31 13F/A-1 ALLEGHENY TECH COM 01741R102 40,740 -61,200 -60.04 346 -83.57 0.0169
2020-05-14 2020-03-31 13F ALLEGHENY TECH COM 01741R102 40,740 -61,200 346 17,380.8819
2020-02-13 2019-12-31 13F ALLEGHENY TECH COM 01741R102 101,940 -4,700 -4.41 2,106 -2.45 0.0867
2019-11-13 2019-09-30 13F ALLEGHENY TECH COM 01741R102 106,640 -16,500 -13.40 2,159 -30.42 0.0918
2019-08-13 2019-06-30 13F ALLEGHENY TECH COM 01741R102 123,140 -1,310,950 -91.41 3,103 -91.54 0.1335
2019-05-13 2019-03-31 13F ALLEGHENY TECH COM 01741R102 1,434,090 56,850 4.13 36,670 22.30 1.6232
2019-02-13 2018-12-31 13F ALLEGHENY TECH COM 01741R102 1,377,240 -6,195 -0.45 29,983 -26.66 1.5092
2018-11-07 2018-09-30 13F ALLEGHENY TECH COM 01741R102 1,383,435 -71,300 -4.90 40,881 11.87 1.8000
2018-08-14 2018-06-30 13F ALLEGHENY TECH COM 01741R102 1,454,735 -21,920 -1.48 36,543 4.51 1.7075
2018-05-15 2018-03-31 13F ALLEGHENY TECH COM 01741R102 1,476,655 15,170 1.04 34,967 -0.89 1.6201
2018-02-13 2017-12-31 13F ALLEGHENY TECH COM 01741R102 1,461,485 -10,050 -0.68 35,280 0.31 1.5746
2017-11-13 2017-09-30 13F ALLEGHENY TECH COM 01741R102 1,471,535 108,765 7.98 35,170 51.72 1.6542
2017-07-31 2017-06-30 13F ALLEGHENY TECH COM 01741R102 1,362,770 45,050 3.42 23,181 -2.05 1.1358
2017-05-15 2017-03-31 13F ALLEGHENY TECH COM 01741R102 1,317,720 11,475 0.88 23,666 13.74 1.1876
2017-02-14 2016-12-31 13F ALLEGHENY TECH COM 01741R102 1,306,245 95,300 7.87 20,808 -4.91 1.1168
2016-11-14 2016-09-30 13F ALLEGHENY TECH COM 01741R102 1,210,945 -32,800 -2.64 21,882 37.99 1.1594
2016-08-12 2016-06-30 13F ALLEGHENY TECH COM 01741R102 1,243,745 221,745 21.70 15,858 -4.81 0.8579
2016-05-16 2016-03-31 13F ALLEGHENY TECH COM 01741R102 1,022,000 1,022,000 0.00 16,659 0.9191
2016-02-17 2015-12-31 13F ALLEGHENY TECH COM 01741R102 0 0 0 0.0000
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.