ATI Inc.
US ˙ NYSE ˙ US01741R1023

SecurityATI / ATI Inc.
InstitutionKBC Group NV
Latest Disclosed Ownership4,340 shares
Latest Disclosed Value $ 631
KBC Group NV ownership in ATI / ATI Inc.

On May 7, 2026 - KBC Group NV filed a 13F-HR form disclosing ownership of 4,340 shares of ATI Inc. (US:ATI) valued at $631,296 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 4,340 shares of ATI Inc.. The current value of the position is $780,940 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)
2026-05-07 2026-03-31 13F ATI COM 01741R102 4,340 0 0.00 1 0.0016
2026-01-26 2025-12-31 13F ATI COM 01741R102 4,340 0 0.00 0 0.0011
2026-01-20 2025-09-30 13F ATI COM 01741R102 4,340 468 12.09 0 0.0008
2025-08-08 2025-06-30 13F ATI COM 01741R102 3,872 -1,907 -33.00 0 0.0009
2025-04-25 2025-03-31 13F ATI COM 01741R102 5,779 720 14.23 0 0.0009
2025-01-22 2024-12-31 13F ATI COM 01741R102 5,059 1,697 50.48 0 0.0008
2024-11-06 2024-09-30 13F ATI COM 01741R102 3,362 385 12.93 0 0.0007
2024-07-17 2024-06-30 13F ATI COM 01741R102 2,977 138 4.86 0 0.0005
2024-05-08 2024-03-31 13F ATI COM 01741R102 2,839 0 0.00 0 0.0005
2024-02-13 2023-12-31 13F ATI COM 01741R102 2,839 0 0.00 0 0.0005
2024-02-15 2023-09-30 13F/A-1 ATI COM 01741R102 2,839 -7,076 -71.37 0 0.0005
2023-11-22 2023-09-30 13F ATI COM 01741R102 9,915 0 0 0.0018
2024-02-15 2023-06-30 13F/A-1 ATI COM 01741R102 9,915 -696 -6.56 0 0.0018
2023-07-28 2023-06-30 13F ATI COM 01741R102 9,915 9,915 0 0.0018
2024-02-14 2023-03-31 13F/A-1 ATI COM 01741R102 10,611 0 0.00 0 0.0018
2024-02-14 2022-12-31 13F/A-1 ATI COM 01741R102 10,611 0 0.00 0 0.0015
2023-02-13 2022-12-31 13F ATI COM 01741R102 10,611 0 0 0.0000
2024-02-15 2022-09-30 13F/A-1 ATI COM 01741R102 10,611 -654 -5.81 0 0.0015
2022-11-08 2022-09-30 13F ATI COM 01741R102 10,611 -654 282 0.0015
2024-02-14 2022-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 11,265 11,265 0 0.0013
2022-07-26 2022-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 11,265 11,265 256 0.0013
2014-10-16 2014-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 -198 -100.00 0 -100.00
2014-08-01 2014-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 198 -987 -83.29 9 -80.00 0.0001
2014-04-30 2014-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 1,185 -819 -40.87 45 -36.62 0.0007
2014-01-21 2013-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 2,004 -1,099 -35.42 71 -25.26 0.0011
2013-11-06 2013-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 3,103 -3,293 -51.49 95 -43.45 0.0015
2013-07-29 2013-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 6,396 6,396 168 0.0031
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.