ATI Inc.
MX ˙ BMV ˙ US01741R1023
SecurityMX:ATI / ATI Inc.
InstitutionUs Bancorp \de\
Latest Disclosed Ownership4,733 shares
Latest Disclosed Value $ 688,462
Us Bancorp \de\ reports 9.33% increase in ownership of ATI / ATI Inc.

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 4,733 shares of ATI Inc. (MX:ATI) valued at $688,462 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 4,329 shares of ATI Inc.. This represents a change in shares of 9.33% 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.

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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 4,733 404 9.33 688 38.71 0.0003
2026-01-30 2025-12-31 13F ATI COM 01741R102 4,329 -254 -5.54 497 33.33 0.0006
2025-11-12 2025-09-30 13F ATI COM 01741R102 4,583 292 6.80 373 0.54 0.0004
2025-07-24 2025-06-30 13F ATI COM 01741R102 4,291 -1,668 -27.99 370 19.35 0.0005
2025-05-08 2025-03-31 13F ATI COM 01741R102 5,959 -732 -10.94 310 -15.76 0.0004
2025-02-05 2024-12-31 13F ATI COM 01741R102 6,691 -6,960 -50.99 368 -59.69 0.0005
2024-10-28 2024-09-30 13F ATI COM 01741R102 13,651 -407 -2.90 913 17.20 0.0012
2024-08-07 2024-06-30 13F ATI COM 01741R102 14,058 1,006 7.71 780 16.79 0.0011
2024-05-08 2024-03-31 13F ATI COM 01741R102 13,052 -6,696 -33.91 668 -25.64 0.0009
2024-02-09 2023-12-31 13F ATI COM 01741R102 19,748 1,831 10.22 898 21.71 0.0013
2023-11-03 2023-09-30 13F ATI COM 01741R102 17,917 -2,650 -12.88 737 -18.92 0.0012
2023-08-10 2023-06-30 13F ATI COM 01741R102 20,567 19,541 1,904.58 910 2,172.50 0.0015
2023-05-09 2023-03-31 13F ATI COMMON STOCK 01741R102 1,026 -488 -32.23 40 -11.11 0.0001
2023-02-13 2022-12-31 13F ATI COMMON STOCK 01741R102 1,514 -598 -28.31 45 -19.64 0.0001
2022-10-27 2022-09-30 13F ATI COMMON STOCK 01741R102 2,112 137 6.94 56 24.44 0.0001
2022-08-01 2022-06-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 1,975 73 3.84 45 -11.76 0.0001
2022-05-11 2022-03-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 1,902 -92 -4.61 51 59.38 0.0001
2022-02-11 2021-12-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 1,994 256 14.73 32 10.34 0.0001
2021-11-10 2021-09-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 1,738 -141 -7.50 29 -25.64 0.0001
2021-08-05 2021-06-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 1,879 -6,548 -77.70 39 -78.09 0.0001
2021-04-28 2021-03-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 8,427 -222 -2.57 178 22.76 0.0004
2021-02-04 2020-12-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 8,649 -861 -9.05 145 74.70 0.0003
2020-11-10 2020-09-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 9,510 -18,733 -66.33 83 -71.18 0.0002
2020-08-07 2020-06-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 28,243 -19,840 -41.26 288 -29.41 0.0008
2020-05-13 2020-03-31 13F ALLEGHENY TECH COMMON STOCK 01741R102 48,083 -4,123 -7.90 408 -62.19 0.0013
2020-02-04 2019-12-31 13F ALLEGHENY TECH COMMON STOCK 01741R102 52,206 5,191 11.04 1,079 13.46 0.0028
2019-11-08 2019-09-30 13F ALLEGHENY TECH COMMON STOCK 01741R102 47,015 1,980 4.40 951 -16.21 0.0026
2019-08-13 2019-06-30 13F ALLEGHENY TECH COMMON STOCK 01741R102 45,035 835 1.89 1,135 0.44 0.0032
2019-05-08 2019-03-31 13F ALLEGHENY TECH COMMON STOCK 01741R102 44,200 -3,401 -7.14 1,130 9.07 0.0033
2019-02-13 2018-12-31 13F ALLEGHENY TECH COMMON STOCK 01741R102 47,601 -638 -1.32 1,036 -27.30 0.0033
2018-10-31 2018-09-30 13F ALLEGHENY TECH COMMON STOCK 01741R102 48,239 -350 -0.72 1,425 16.71 0.0041
2018-08-08 2018-06-30 13F ALLEGHENY TECH COMMON STOCK 01741R102 48,589 3,262 7.20 1,221 13.79 0.0037
2018-05-08 2018-03-31 13F ALLEGHENY TECH COMMON STOCK 01741R102 45,327 412 0.92 1,073 -1.01 0.0033
2018-02-02 2017-12-31 13F ALLEGHENY TECH COMMON STOCK 01741R102 44,915 466 1.05 1,084 2.07 0.0033
2017-11-13 2017-09-30 13F ALLEGHENY TECH COMMON STOCK 01741R102 44,449 1,128 2.60 1,062 44.10 0.0034
2017-07-19 2017-06-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 43,321 2,283 5.56 737 0.00 0.0025
2017-05-03 2017-03-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 41,038 6,227 17.89 737 33.03 0.0025
2017-02-08 2016-12-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 34,811 11,081 46.70 554 29.14 0.0020
2016-11-04 2016-09-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 23,730 1,998 9.19 429 54.87 0.0016
2016-08-10 2016-06-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 21,732 -3,047 -12.30 277 -31.27 0.0011
2016-05-13 2016-03-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 24,779 -804 -3.14 403 39.93 0.0016
2016-02-10 2015-12-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 25,583 -4,216 -14.15 288 -31.91 0.0012
2015-11-16 2015-09-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 29,799 217 0.73 423 -52.68 0.0018
2015-08-10 2015-06-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 29,582 1,077 3.78 894 4.44 0.0035
2015-05-08 2015-03-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 28,505 3,297 13.08 856 -2.28 0.0033
2015-02-13 2014-12-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 25,208 1,448 6.09 876 -0.57 0.0034
2014-11-14 2014-09-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 23,760 -1,327 -5.29 881 -22.17 0.0036
2014-08-14 2014-06-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 25,087 -443 -1.74 1,132 17.67 0.0045
2014-05-14 2014-03-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 25,530 260 1.03 962 6.77 0.0039
2014-02-13 2013-12-31 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 25,270 -1,124 -4.26 901 11.79 0.0037
2013-11-07 2013-09-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 26,394 -27,963 -51.44 806 -43.64 0.0036
2013-08-09 2013-06-30 13F ALLEGHENY TECHNOLOGIES COMMON STOCK 01741R102 54,357 54,357 1,430 0.0065
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.