Position in CSTM
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$28,803,138
+$3,545,383 QoQ
Shares Held
1,171,812
-12.5% QoQ
Ownership
0.861%
of shares outstanding
% of Portfolio
16.24%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Common Shares in CSTM Over Time
Shares Held
Position Value (USD)
Derivatives in CSTM
reported options exposure · as of Jun 30, 2022CallValue
$10,620
CallShares
804
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 Aluminum
Basic Materials · as of Mar 31, 2026BEACONLIGHT CAPITAL, LLC holds $28,803,138 across 1 Aluminum name. CSTM ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CSTM |
Constellium SE
This page
|
1,171,812 | $28,803,138 |
All Filings in CSTM
Export CSV
28 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $28,803,138 | 1,171,812 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $25,257,755 | 1,339,934 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $18,949,754 | 1,273,505 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $12,349,515 | 928,535 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $9,720,494 | 963,379 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $8,363,035 | 814,317 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $14,335,076 | 881,616 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $19,637,119 | 1,041,757 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $27,235,208 | 1,231,805 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $22,152,985 | 1,109,869 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $14,765,368 | 811,284 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $16,367,640 | 951,607 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $14,118,826 | 924,007 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $8,494,732 | 718,067 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $7,989,569 | 787,926 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $12,389,368 | 937,878 | Shares | Sole | 2022-08-15 | |
| 2022-06-30 | $10,620 | 804 | Call | Sole | 2022-08-15 | |
| 2022-03-31 | $16,723,188 | 929,066 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $17,298,176 | 965,839 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $15,495,208 | 825,091 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $18,883,068 | 996,468 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $18,948,682 | 1,289,026 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $17,586,982 | 1,257,111 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $5,567,785 | 709,272 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $9,656,148 | 1,257,311 | Shares | Sole | 2020-08-14 | |
| 2020-06-30 | $17,195 | 2,239 | Call | Sole | 2020-08-14 | |
| 2020-03-31 | $1,135,780 | 218,000 | Call | Sole | 2020-05-15 | |
| 2020-03-31 | $9,337,836 | 1,792,291 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||