ATI Inc.
MX ˙ BMV ˙ US01741R1023
SecurityMX:ATI / ATI Inc.
InstitutionMacquarie Group Ltd
Latest Disclosed Ownership303 shares
Latest Disclosed Value $ 44,074
Macquarie Group Ltd ownership in ATI / ATI Inc.

On May 15, 2026 - Macquarie Group Ltd filed a 13F-HR form disclosing ownership of 303 shares of ATI Inc. (MX:ATI) valued at $44,074 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 0 shares of ATI Inc..

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 303 303 44 0.0002
2026-02-13 2025-12-31 13F ATI COM 01741R102 0 -236,788 -100.00 0 -100.00
2025-11-13 2025-09-30 13F ATI COM 01741R102 236,788 -30,090 -11.27 19,260 -16.41 0.0225
2025-08-14 2025-06-30 13F ATI COM 01741R102 266,878 -232,308 -46.54 23,042 -11.28 0.0283
2025-08-14 2025-03-31 13F/A-1 ATI COM 01741R102 499,186 -251,318 -33.49 25,973 -37.12 0.0322
2025-05-15 2025-03-31 13F ATI COM 01741R102 499,186 -251,318 25,973 0.0212
2025-02-14 2024-12-31 13F ATI COM 01741R102 750,504 -92,509 -10.97 41,308 -26.77 0.0501
2024-11-14 2024-09-30 13F ATI COM 01741R102 843,013 -102,016 -10.80 56,406 7.64 0.0609
2024-08-09 2024-06-30 13F ATI COM 01741R102 945,029 -8,575 -0.90 52,402 7.39 0.0601
2024-05-14 2024-03-31 13F ATI COM 01741R102 953,604 -66,192 -6.49 48,796 5.23 0.0553
2024-02-14 2023-12-31 13F ATI COM 01741R102 1,019,796 -19,063 -1.83 46,370 8.47 0.0536
2023-11-14 2023-09-30 13F ATI COM 01741R102 1,038,859 -158,383 -13.23 42,749 -19.27 0.0537
2023-10-27 2023-06-30 13F/A-2 ATI COM 01741R102 1,197,242 122,599 11.41 52,954 24.87 0.0605
2023-10-12 2023-06-30 13F/A-1 ATI COM 01741R102 1,197,242 122,599 52,954 0.0532
2023-08-14 2023-06-30 13F ATI COM 01741R102 1,197,242 122,599 52,954 0.0537
2023-06-01 2023-03-31 13F/A-1 ATI COM 01741R102 1,074,643 18,086 1.71 42,405 34.41 0.0504
2023-05-15 2023-03-31 13F ATI COM 01741R102 1,074,643 18,086 42,405 0.0389
2023-02-21 2022-12-31 13F ATI COM 01741R102 1,056,557 20,125 1.94 31,549 14.27 0.0373
2022-11-14 2022-09-30 13F ATI COM 01741R102 1,036,432 57,843 5.91 27,610 24.24 0.0339
2022-08-17 2022-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 978,589 852,800 677.96 22,223 558.26 0.0250
2022-08-15 2022-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 978,589 852,800 22,223 0.0080
2022-05-16 2022-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 125,789 122,202 3,406.80 3,376 5,822.81 0.0026
2022-02-11 2021-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 3,587 -1,317 -26.86 57 -30.49 0.0000
2021-11-12 2021-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 4,904 0 0.00 82 -19.61 0.0001
2021-08-13 2021-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 4,904 -1,869 -27.59 102 -28.67 0.0001
2021-05-14 2021-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 6,773 -2,422 -26.34 143 -7.14 0.0002
2021-02-16 2020-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 9,195 0 0.00 154 92.50 0.0002
2020-11-13 2020-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 9,195 0 0.00 80 -14.89 0.0001
2020-08-11 2020-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 9,195 9,195 94 0.0002
2018-11-15 2018-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 -200 -100.00 0 -100.00
2019-03-21 2018-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 200 -4,400 -95.65 5 -95.41 0.0000
2018-08-14 2018-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 200 -4,400 5
2018-05-11 2018-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 4,600 3,594 357.26 109 354.17 0.0002
2018-02-14 2017-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 1,006 1,006 24 0.0000
2016-05-16 2016-03-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 0 -172,000 -100.00 0 -100.00
2016-02-16 2015-12-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 172,000 0 0.00 1,935 -20.66 0.0040
2015-11-16 2015-09-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 172,000 57,000 49.57 2,439 -29.77 0.0052
2015-08-21 2015-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COMMON 01741R102 115,000 0 0.00 3,473 0.64 0.0069
2015-08-14 2015-06-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 115,000 3,473
2015-05-18 2015-03-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 115,000 15,777 15.90 3,451 0.03 0.0068
2015-02-17 2014-12-31 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 99,223 42,223 74.08 3,450 63.12 0.0071
2014-11-14 2014-09-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 57,000 57,000 -85.99 2,115 -80.25 0.0045
2013-11-14 2013-09-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 0 -406,943 -100.00 0 -100.00
2013-08-16 2013-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COMMON 01741R102 406,943 406,943 10,707 0.0234
2013-08-14 2013-06-30 13F ALLEGHENY TECHNOLOGIES COMMON 01741R102 406,943 10,707 0.0234
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.