Position in ATI
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$175,093,983
+$133,405,004 QoQ
Shares Held
1,203,726
+231.4% QoQ
Ownership
0.882%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
3 quarters on record
Voting authority
Sole 97.17635076421047.ToString("F0")%
Shared 0.ToString("F0")%
None 2.8236492357895404.ToString("F0")%
Common Shares in ATI Over Time
Shares Held
Position Value (USD)
Position in Metal Fabrication
Industrials · as of Mar 31, 2026ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $338,281,252 across 8 Metal Fabrication names. ATI ranks #1 (51.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ATI |
Ati Inc
This page
|
1,203,726 | $175,093,983 | |
| 2 | MLI |
Mueller Industries Inc
|
1,526,767 | $84,582,891 | |
| 3 | PRLB |
Proto Labs Inc
|
463,780 | $26,444,735 | |
| 4 | WOR |
Worthington Enterprises, Inc.
|
480,515 | $25,054,052 | |
| 5 | RYZ |
Ryerson Holding Corp
|
852,933 | $19,173,933 | |
| 6 | MEC |
Mayville Engineering Company, Inc.
|
185,261 | $3,325,434 | |
| 7 | IIIN |
Insteel Industries Inc
|
75,672 | $2,543,335 | |
| 8 | TG |
Tredegar Corp
|
259,483 | $2,062,889 |
All Filings in ATI
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $175,093,983 | 1,203,726 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $41,688,979 | 363,271 | Shares | Defined | 2026-02-13 | |
| 2020-03-31 | $1,516,791 | 178,446 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||