Position in CSTM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$7,101,162
+$5,232,524 QoQ
Shares Held
288,900
+191.4% QoQ
Ownership
0.212%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
15 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CSTM Over Time
Shares Held
Position Value (USD)
Derivatives in CSTM
reported options exposure · as of Dec 31, 2021CallValue
$293,724
CallShares
16,400
PutValue
$349,245
PutShares
19,500
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, 2026TWO SIGMA INVESTMENTS, LP holds $34,128,474 across 3 Aluminum names. CSTM ranks #3 (20.8% of the industry book) .
All Filings in CSTM
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17 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $7,101,162 | 288,900 | Shares | Sole | 2026-05-15 | |
| 2024-06-30 | $1,868,638 | 99,132 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $9,004,186 | 407,245 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $5,065,089 | 253,762 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $7,109,156 | 390,613 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $7,512,891 | 436,796 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $6,090,378 | 398,585 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $4,449,535 | 376,123 | Shares | Sole | 2023-02-14 | |
| 2022-03-31 | $876,816 | 48,712 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $293,724 | 16,400 | Call | Sole | 2022-02-14 | |
| 2021-12-31 | $349,245 | 19,500 | Put | Sole | 2022-02-14 | |
| 2021-09-30 | $283,578 | 15,100 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $214,135 | 11,300 | Call | Sole | 2021-08-16 | |
| 2021-06-30 | $1,919,635 | 101,300 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $2,854,196 | 194,163 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $2,506,378 | 179,155 | Shares | Sole | 2021-02-16 | |
| 2020-03-31 | $841,675 | 161,550 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||