Position in ATI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$253,479,904
+$21,363,919 QoQ
Shares Held
1,742,609
-13.8% QoQ
Ownership
1.28%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 98%
Shared 0%
None 2%
Common Shares in ATI Over Time
Shares Held
Position Value (USD)
Derivatives in ATI
reported options exposure · as of Mar 31, 2026CallValue
$1,396,416
CallShares
9,600
PutValue
$0
PutShares
0
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 Mar 31, 2026D. E. Shaw & Co., Inc. holds $386,370,613 across 10 Metal Fabrication names. ATI ranks #1 (65.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ATI |
Ati Inc
This page
|
1,742,609 | $253,479,904 | |
| 2 | CRS |
Carpenter Technology Corp
|
150,485 | $59,313,662 | |
| 3 | ESAB |
ESAB Corp
|
224,086 | $21,660,152 | |
| 4 | MLI |
Mueller Industries Inc
|
340,822 | $18,881,538 | |
| 5 | PRLB |
Proto Labs Inc
|
225,651 | $12,866,620 | |
| 6 | CMC |
COMMERCIAL METALS Co
|
152,601 | $9,374,279 | |
| 7 | RYZ |
Ryerson Holding Corp
|
327,125 | $7,353,769 | |
| 8 | WOR |
Worthington Enterprises, Inc.
|
36,803 | $1,918,908 |
All Filings in ATI
Export CSV
47 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,396,416 | 9,600 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $253,479,904 | 1,742,609 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $232,115,985 | 2,022,621 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $1,411,548 | 12,300 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $619,704 | 5,400 | Put | Defined | 2026-02-17 | |
| 2025-09-30 | $1,000,482 | 12,300 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $439,236 | 5,400 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $246,224,475 | 3,027,102 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $233,118 | 2,700 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $303,394,270 | 3,513,948 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $85,292,466 | 1,639,294 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $80,557,258 | 1,463,613 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $85,801,435 | 1,282,341 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $61,857,801 | 1,115,560 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $29,757,810 | 581,548 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $56,080,742 | 1,233,357 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $3,106,825 | 75,500 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $50,710,667 | 1,232,337 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $97,879,043 | 2,212,956 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $3,339,365 | 75,500 | Call | Defined | 2023-08-14 | |
| 2023-03-31 | $2,979,230 | 75,500 | Call | Defined | 2023-05-15 | |
| 2023-03-31 | $106,982,294 | 2,711,158 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $2,137,976 | 71,600 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $98,713,875 | 3,305,890 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $5,271,441 | 198,100 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $90,396,750 | 3,397,097 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $2,872,815 | 126,500 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $78,536,811 | 3,458,248 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $97,144,507 | 3,619,393 | Shares | Defined | 2022-05-16 | |
| 2022-03-31 | $3,395,260 | 126,500 | Call | Defined | 2022-05-16 | |
| 2021-12-31 | $57,844,410 | 3,631,162 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $67,171,214 | 4,039,159 | Shares | Defined | 2021-11-15 | |
| 2021-09-30 | $1,496,700 | 90,000 | Call | Defined | 2021-11-15 | |
| 2021-06-30 | $1,876,500 | 90,000 | Call | Defined | 2021-08-16 | |
| 2021-06-30 | $79,206,835 | 3,798,889 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $80,571,747 | 3,825,819 | Shares | Defined | 2021-05-17 | |
| 2021-03-31 | $1,895,400 | 90,000 | Call | Defined | 2021-05-17 | |
| 2020-12-31 | $68,009,325 | 4,055,416 | Shares | Defined | 2021-02-16 | |
| 2020-12-31 | $1,509,300 | 90,000 | Call | Defined | 2021-02-16 | |
| 2020-09-30 | $213,640 | 24,500 | Call | Defined | 2020-11-16 | |
| 2020-09-30 | $41,459,449 | 4,754,524 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $153,869 | 15,100 | Call | Defined | 2020-08-14 | |
| 2020-06-30 | $39,611,433 | 3,887,285 | Shares | Defined | 2020-08-14 | |
| 2020-06-30 | $192,591 | 18,900 | Put | Defined | 2020-08-14 | |
| 2020-03-31 | $128,350 | 15,100 | Call | Defined | 2020-05-15 | |
| 2020-03-31 | $160,650 | 18,900 | Put | Defined | 2020-05-15 | |
| 2020-03-31 | $15,309,307 | 1,801,095 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||