ATI Inc.
MX ˙ BMV ˙ US01741R1023
SecurityMX:ATI / ATI Inc.
InstitutionPnc Financial Services Group, Inc.
Latest Disclosed Ownership831,736 shares
Latest Disclosed Value $ 120,984,318
Pnc Financial Services Group, Inc. reports 1,714.00% increase in ownership of ATI / ATI Inc.

On May 8, 2026 - Pnc Financial Services Group, Inc. filed a 13F-HR form disclosing ownership of 831,736 shares of ATI Inc. (MX:ATI) valued at $120,984,318 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 45,851 shares of ATI Inc.. This represents a change in shares of 1,714.00% during the quarter.

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 .

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)
2026-05-08 2026-03-31 13F ATI COM 01741R102 831,736 785,885 1,714.00 120,984 2,199.64 0.0115
2026-02-06 2025-12-31 13F ATI COM 01741R102 45,851 -164 -0.36 5,262 40.59 0.0029
2025-11-07 2025-09-30 13F ATI COM 01741R102 46,015 -11,842 -20.47 3,743 -25.09 0.0023
2025-08-08 2025-06-30 13F ATI COM 01741R102 57,857 -18,063 -23.79 4,995 26.46 0.0032
2025-05-09 2025-03-31 13F ATI COM 01741R102 75,920 -30,028 -28.34 3,950 -32.26 0.0021
2025-02-07 2024-12-31 13F ATI COM 01741R102 105,948 25,964 32.46 5,831 8.97 0.0039
2024-11-08 2024-09-30 13F ATI COM 01741R102 79,984 -114 -0.14 5,352 20.49 0.0034
2024-08-09 2024-06-30 13F ATI COM 01741R102 80,098 -6,989 -8.03 4,441 -0.34 0.0030
2024-05-10 2024-03-31 13F ATI COM 01741R102 87,087 3,037 3.61 4,456 16.62 0.0031
2024-03-22 2023-12-31 13F/A-1 ATI COM 01741R102 84,050 216 0.26 3,822 10.79 0.0030
2024-02-09 2023-12-31 13F ATI COM 01741R102 84,050 216 3,822 0.0030
2023-11-13 2023-09-30 13F ATI COM 01741R102 83,834 -435 -0.52 3,450 -7.46 0.0030
2023-08-11 2023-06-30 13F ATI COM 01741R102 84,269 1,575 1.90 3,727 14.22 0.0032
2023-05-15 2023-03-31 13F ATI COM 01741R102 82,694 -2,053 -2.42 3,263 28.97 0.0029
2023-02-10 2022-12-31 13F ATI COM 01741R102 84,747 10,146 13.60 2,531 27.52 0.0024
2022-11-10 2022-09-30 13F ATI COM 01741R102 74,601 -501 -0.67 1,984 16.30 0.0021
2022-08-12 2022-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 75,102 -32 -0.04 1,706 -15.38 0.0017
2022-05-12 2022-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 75,134 -11,428 -13.20 2,016 46.19 0.0018
2022-02-11 2021-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 86,562 -32,978 -27.59 1,379 -30.63 0.0011
2021-11-05 2021-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 119,540 -37,610 -23.93 1,988 -39.33 0.0018
2021-08-06 2021-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 157,150 -1,369 -0.86 3,277 -1.83 0.0030
2021-05-07 2021-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 158,519 -32,740 -17.12 3,338 4.08 0.0032
2021-02-12 2020-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 191,259 -19,478 -9.24 3,207 74.58 0.0032
2020-11-06 2020-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 210,737 4,101 1.98 1,837 -12.77 0.0023
2020-08-28 2020-06-30 13F/A-1 ALLEGHENY Common Stock 01741R102 206,636 -22,685 -9.89 2,106 8.11 0.0028
2020-08-07 2020-06-30 13F ALLEGHENY Common Stock 01741R102 206,636 -22,685 2,106 437.2865
2020-05-08 2020-03-31 13F ALLEGHENY Common Stock 01741R102 229,321 34,958 17.99 1,948 -51.48 0.0025
2020-02-07 2019-12-31 13F ALLEGHENY Common Stock 01741R102 194,363 -1,917 -0.98 4,015 1.01 0.0040
2019-11-08 2019-09-30 13F ALLEGHENY Common Stock 01741R102 196,280 -17,029 -7.98 3,975 -26.06 0.0040
2019-08-09 2019-06-30 13F ALLEGHENY Common Stock 01741R102 213,309 -37,731 -15.03 5,376 -16.26 0.0053
2019-05-10 2019-03-31 13F ALLEGHENY Common Stock 01741R102 251,040 30,809 13.99 6,420 33.89 0.0064
2019-02-08 2018-12-31 13F ALLEGHENY Common Stock 01741R102 220,231 11,707 5.61 4,795 -22.17 0.0053
2018-11-09 2018-09-30 13F ALLEGHENY Common Stock 01741R102 208,524 -139,866 -40.15 6,161 -29.61 0.0058
2018-08-10 2018-06-30 13F ALLEGHENY Common Stock 01741R102 348,390 325 0.09 8,753 6.19 0.0086
2018-05-11 2018-03-31 13F ALLEGHENY Common Stock 01741R102 348,065 -2,075 -0.59 8,243 -2.48 0.0081
2018-02-09 2017-12-31 13F ALLEGHENY Common Stock 01741R102 350,140 105,024 42.85 8,453 44.32 0.0082
2017-11-13 2017-09-30 13F ALLEGHENY Common Stock 01741R102 245,116 9,978 4.24 5,857 46.50 0.0061
2017-08-11 2017-06-30 13F ALLEGHENY 01741R102 235,138 10,586 4.71 3,998 -0.89 0.0043
2017-05-12 2017-03-31 13F ALLEGHENY Common Stock 01741R102 224,552 385 0.17 4,034 12.97 0.0045
2017-02-10 2016-12-31 13F ALLEGHENY Common Stock 01741R102 224,167 -3,162 -1.39 3,571 -13.05 0.0041
2016-11-04 2016-09-30 13F ALLEGHENY Common Stock 01741R102 227,329 1,342 0.59 4,107 42.55 0.0048
2016-08-05 2016-06-30 13F ALLEGHENY Common Stock 01741R102 225,987 -5,233 -2.26 2,881 -23.52 0.0034
2016-05-06 2016-03-31 13F ALLEGHENY Common Stock 01741R102 231,220 -956 -0.41 3,767 44.16 0.0044
2016-02-05 2015-12-31 13F ALLEGHENY Common Stock 01741R102 232,176 970 0.42 2,613 -20.26 0.0031
2015-11-06 2015-09-30 13F ALLEGHENY Common Stock 01741R102 231,206 -7,314 -3.07 3,277 -54.51 0.0039
2015-08-05 2015-06-30 13F ALLEGHENY Common Stock 01741R102 238,520 -29,156 -10.89 7,203 -10.34 0.0081
2015-05-08 2015-03-31 13F ALLEGHENY Common Stock 01741R102 267,676 -10,263 -3.69 8,034 -16.86 0.0088
2015-02-06 2014-12-31 13F/A-1 ALLEGHENY Common Stock 01741R102 277,939 -7,694 -2.69 9,663 -8.81 0.0106
2015-02-06 2014-12-31 13F ALLEGHENY Common Stock 01741R102 277,939 9,663
2014-11-07 2014-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 285,633 200,878 237.01 10,597 177.19 0.0125
2014-08-08 2014-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 84,755 -11,750 -12.18 3,823 5.17 0.0049
2014-05-09 2014-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 96,505 -3,905 -3.89 3,635 1.59 0.0048
2014-02-07 2013-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 100,410 -2,001 -1.95 3,578 14.50 0.0047
2013-11-01 2013-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 102,411 -2,723 -2.59 3,125 12.98 0.0046
2013-08-02 2013-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 105,134 105,134 2,766 0.0040
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.