ATI Inc.
MX ˙ BMV ˙ US01741R1023
SecurityMX:ATI / ATI Inc.
InstitutionSciencast Management LP
Latest Disclosed Ownership17,329 shares
Latest Disclosed Value $ 2,520,676
Sciencast Management LP reports 100.47% increase in ownership of ATI / ATI Inc.

On May 13, 2026 - Sciencast Management LP filed a 13F-HR form disclosing ownership of 17,329 shares of ATI Inc. (MX:ATI) valued at $2,520,676 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 8,644 shares of ATI Inc.. This represents a change in shares of 100.47% 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)
2026-05-13 2026-03-31 13F ATI A 01741R102 17,329 8,685 100.47 2,521 154.29 0.3211
2026-02-17 2025-12-31 13F ATI A 01741R102 8,644 -2,815 -24.57 992 6.33 0.1372
2025-11-12 2025-09-30 13F ATI A 01741R102 11,459 -5,137 -30.95 932 -34.92 0.1744
2025-08-14 2025-06-30 13F ATI A 01741R102 16,596 16,596 1,433 0.2961
2024-11-13 2024-09-30 13F ATI COM 01741R102 0 -24,465 -100.00 0 -100.00
2024-08-14 2024-06-30 13F ATI COM 01741R102 24,465 24,465 1,357 0.4722
2022-08-03 2022-06-30 13F ALLEGHENY TECHNOLOGIES A 01741R102 0 -39,283 -100.00 0 -100.00
2022-04-26 2022-03-31 13F ALLEGHENY TECHNOLOGIES A 01741R102 39,283 39,283 1,079 0.2474
2021-10-21 2021-09-30 13F ALLEGHENY TECHNOLOGIES A 01741R102 0 -23,507 -100.00 0 -100.00
2021-07-28 2021-06-30 13F ALLEGHENY TECHNOLOGIES A 01741R102 23,507 13,975 146.61 517 146.19 0.1083
2021-05-12 2021-03-31 13F ALLEGHENY TECHNOLOGIES A 01741R102 9,532 9,532 210 0.0418
2021-02-04 2020-12-31 13F ALLEGHENY TECHNOLOGIES A 01741R102 0 -20,100 -100.00 0 -100.00
2020-11-02 2020-09-30 13F ALLEGHENY TECHNOLOGIES A 01741R102 20,100 20,100 188 0.0717
2020-07-29 2020-06-30 13F ALLEGHENY TECHNOLOGIES A 01741R102 0 -25,779 -100.00 0 -100.00
2020-04-17 2020-03-31 13F ALLEGHENY TECHNOLOGIES A 01741R102 25,779 25,779 201 0.0564
2019-08-08 2019-06-30 13F ALLEGHENY TECHNOLOGIES A 01741R102 0 -16,862 -100.00 0 -100.00
2019-04-15 2019-03-31 13F ALLEGHENY TECHNOLOGIES A 01741R102 16,862 16,862 454 0.1611
2018-05-15 2018-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 -14,245 -100.00 0 -100.00
2018-02-14 2017-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 14,245 14,245 404 0.2165
2017-11-14 2017-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 0 -10,510 -100.00 0 -100.00
2017-08-14 2017-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 10,510 10,510 179 0.0995
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.