ATI Inc.
MX ˙ BMV ˙ US01741R1023
SecurityMX:ATI / ATI Inc.
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership31,071 shares
Latest Disclosed Value $ 4,519,639
Mercer Global Advisors Inc /adv reports 20.78% increase in ownership of ATI / ATI Inc.

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 31,071 shares of ATI Inc. (MX:ATI) valued at $4,519,639 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 25,726 shares of ATI Inc.. This represents a change in shares of 20.78% 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.

Upgrade to unlock premium data and export to Excel .

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 31,071 5,345 20.78 4,520 53.08 0.0067
2026-02-17 2025-12-31 13F ATI COM 01741R102 25,726 11,933 86.51 2,952 163.34 0.0045
2025-11-14 2025-09-30 13F ATI COM 01741R102 13,793 4,578 49.68 1,122 41.01 0.0019
2025-08-14 2025-06-30 13F ATI COM 01741R102 9,215 1,849 25.10 796 107.57 0.0016
2025-05-15 2025-03-31 13F ATI COM 01741R102 7,366 -1,157 -13.58 383 -18.34 0.0009
2025-02-14 2024-12-31 13F ATI COM 01741R102 8,523 4,490 111.33 469 75.66 0.0011
2024-11-14 2024-09-30 13F ATI COM 01741R102 4,033 126 3.22 267 23.61 0.0006
2024-08-12 2024-06-30 13F ATI COM 01741R102 3,907 3,907 217 0.0006
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.