ATI Inc.
US ˙ NYSE ˙ US01741R1023

SecurityATI / ATI Inc.
InstitutionShell Asset Management Co
Latest Disclosed Ownership1,647 shares
Latest Disclosed Value $ 134
Shell Asset Management Co reports 42.93% decrease in ownership of ATI / ATI Inc.

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 1,647 shares of ATI Inc. (US:ATI) valued at $133,967 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 2,886 shares of ATI Inc.. The current value of the position is $296,361 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)
2025-11-07 2025-09-30 13F ATI COM 01741R102 1,647 -1,239 -42.93 0 0.0135
2025-07-23 2025-06-30 13F ATI COM 01741R102 2,886 603 26.41 0 0.0086
2025-05-14 2025-03-31 13F ATI COM 01741R102 2,283 -99 -4.16 0 0.0056
2025-02-14 2024-12-31 13F ATI COM 01741R102 2,382 0 0.00 0 0.0057
2024-11-07 2024-09-30 13F ATI COM 01741R102 2,382 -137 -5.44 0 0.0070
2024-07-25 2024-03-31 13F ATI COM 01741R102 2,519 2,519 0 0.0064
2017-10-18 2017-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 0 0 0.0000
2015-10-13 2015-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 0 0 0.0000
2015-05-07 2015-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 0 0 0.0000
2014-10-24 2014-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 0 0 0.0000
2014-08-08 2014-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 0 0 0.0000
2014-05-07 2014-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 -179 -100.00 0 -100.00
2013-10-28 2013-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 179 0 0.00 5 0.00 0.0001
2013-08-01 2013-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 179 179 5 0.0001
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.