Position in ATI
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$125,487,854
+$122,902,303 QoQ
Shares Held
636,671
+3481.8% QoQ
Ownership
0.468%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
#44
of 790 holders
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ATI Over Time
Shares Held
Position Value (USD)
Derivatives in ATI
reported options exposure · as of Jun 30, 2026CallValue
$1,064,340
CallShares
5,400
PutValue
$1,458,540
PutShares
7,400
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Metal Fabrication
Industrials · as of Jun 30, 2026TWO SIGMA INVESTMENTS, LP holds $263,830,984 across 11 Metal Fabrication names. ATI ranks #1 (47.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ATI |
Ati Inc
This page
|
636,671 | $125,487,854 | |
| 2 | CRS |
Carpenter Technology Corp
|
146,056 | $90,093,183 | |
| 3 | WOR |
Worthington Enterprises, Inc.
|
333,110 | $17,907,993 | |
| 4 | RYZ |
Ryerson Holding Corp
|
313,790 | $7,722,371 | |
| 5 | MEC |
Mayville Engineering Company, Inc.
|
198,912 | $7,451,243 | |
| 6 | IIIN |
Insteel Industries Inc
|
197,813 | $5,973,952 | |
| 7 | ESAB |
ESAB Corp
|
29,182 | $2,878,220 | |
| 8 | CMC |
COMMERCIAL METALS Co
|
39,375 | $2,470,781 |
All Filings in ATI
Export CSV
35 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $125,487,854 | 636,671 | Shares | Sole | 2026-08-14 | |
| 2026-06-30 | $1,458,540 | 7,400 | Put | Sole | 2026-08-14 | |
| 2026-06-30 | $1,064,340 | 5,400 | Call | Sole | 2026-08-14 | |
| 2026-03-31 | $480,018 | 3,300 | Call | Sole | 2026-05-15 | |
| 2026-03-31 | $2,585,551 | 17,775 | Shares | Sole | 2026-05-15 | |
| 2026-03-31 | $494,564 | 3,400 | Put | Sole | 2026-05-15 | |
| 2025-12-31 | $225,732 | 1,967 | Shares | Sole | 2026-02-17 | |
| 2025-12-31 | $459,040 | 4,000 | Put | Sole | 2026-02-17 | |
| 2025-12-31 | $413,136 | 3,600 | Call | Sole | 2026-02-17 | |
| 2025-06-30 | $22,159,420 | 256,653 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $7,151,419 | 137,448 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $13,041,728 | 236,950 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $58,303,701 | 871,375 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $59,288,470 | 1,069,224 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $31,039,977 | 606,605 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $20,066,320 | 441,309 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $1,768,092 | 42,967 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $2,143,208 | 48,456 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $4,906,890 | 124,351 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $4,395,571 | 147,206 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $7,652,317 | 287,573 | Shares | Sole | 2022-11-14 | |
| 2022-09-30 | $1,330,500 | 50,000 | Put | Sole | 2022-11-14 | |
| 2022-06-30 | $1,974,384 | 86,939 | Shares | Sole | 2022-08-15 | |
| 2022-06-30 | $1,135,500 | 50,000 | Put | Sole | 2022-08-15 | |
| 2022-03-31 | $17,626,445 | 656,723 | Shares | Sole | 2022-05-16 | |
| 2022-03-31 | $9,394,000 | 350,000 | Put | Sole | 2022-05-16 | |
| 2021-12-31 | $4,779,000 | 300,000 | Put | Sole | 2022-02-14 | |
| 2021-12-31 | $1,844,534 | 115,790 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $2,873,115 | 172,767 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $2,636,982 | 126,474 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $19,698,070 | 935,331 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $16,902,784 | 1,007,918 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $8,014,979 | 919,149 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $6,330,782 | 621,274 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $5,817,740 | 684,440 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||