Position in CENX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$3,752,759
-$73,773,326 QoQ
Shares Held
81,564
-93.8% QoQ
Ownership
0.082%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#103
of 413 holders
Holding Since
Mar 2020
23 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CENX Over Time
Shares Held
Position Value (USD)
Derivatives in CENX
reported options exposure · as of Jun 30, 2026CallValue
$20,318,016
CallShares
441,600
PutValue
$11,465,692
PutShares
249,200
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 Jun 30, 2026JANE STREET GROUP, LLC holds $30,712,310 across 4 Aluminum names. CENX ranks #3 (12.2% of the industry book) .
All Filings in CENX
Export CSV
47 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $3,752,759 | 81,564 | Shares | Defined | 2026-08-14 | |
| 2026-06-30 | $20,318,016 | 441,600 | Call | Defined | 2026-08-14 | |
| 2026-06-30 | $11,465,692 | 249,200 | Put | Defined | 2026-08-14 | |
| 2026-03-31 | $8,815,238 | 150,200 | Put | Defined | 2026-05-12 | |
| 2026-03-31 | $6,385,472 | 108,800 | Call | Defined | 2026-05-12 | |
| 2026-03-31 | $77,526,085 | 1,320,942 | Shares | Defined | 2026-05-12 | |
| 2025-12-31 | $4,568,388 | 116,600 | Put | Defined | 2026-02-12 | |
| 2025-12-31 | $1,626,674 | 41,518 | Shares | Defined | 2026-02-12 | |
| 2025-12-31 | $5,402,922 | 137,900 | Call | Defined | 2026-02-12 | |
| 2025-09-30 | $4,656,496 | 158,600 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $3,311,808 | 112,800 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $4,880,981 | 166,246 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $2,616,504 | 145,200 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $2,211,054 | 122,700 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $2,785,999 | 154,606 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $3,155,200 | 170,000 | Put | Defined | 2025-05-19 | |
| 2025-03-31 | $3,622,892 | 195,199 | Shares | Defined | 2025-05-19 | |
| 2025-03-31 | $4,380,160 | 236,000 | Call | Defined | 2025-05-19 | |
| 2024-12-31 | $1,543,252 | 84,701 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $3,687,728 | 202,400 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $2,038,818 | 111,900 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $345,699 | 21,300 | Put | Defined | 2024-11-15 | |
| 2024-09-30 | $2,316,021 | 142,700 | Call | Defined | 2024-11-15 | |
| 2024-09-30 | $2,255,580 | 138,976 | Shares | Defined | 2024-11-15 | |
| 2024-06-30 | $4,846,143 | 289,322 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $1,171,394 | 76,114 | Shares | Defined | 2024-05-16 | |
| 2023-12-31 | $4,080,119 | 336,089 | Shares | Defined | 2024-02-15 | |
| 2023-09-30 | $482,189 | 67,064 | Shares | Defined | 2023-11-15 | |
| 2023-06-30 | $468,298 | 53,704 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $745,430 | 74,543 | Shares | Defined | 2023-05-16 | |
| 2022-12-31 | $858,800 | 104,988 | Shares | Defined | 2023-02-15 | |
| 2022-09-30 | $488,774 | 92,571 | Shares | Defined | 2022-11-15 | |
| 2022-06-30 | $3,132,463 | 425,029 | Shares | Defined | 2022-08-16 | |
| 2022-03-31 | $5,356,716 | 203,600 | Put | Defined | 2022-05-17 | |
| 2022-03-31 | $5,348,823 | 203,300 | Call | Defined | 2022-05-17 | |
| 2022-03-31 | $2,192,780 | 83,344 | Shares | Defined | 2022-05-17 | |
| 2021-12-31 | $3,583,584 | 216,400 | Call | Defined | 2022-02-15 | |
| 2021-12-31 | $577,944 | 34,900 | Put | Defined | 2022-02-15 | |
| 2021-12-31 | $567,279 | 34,256 | Shares | Defined | 2022-02-15 | |
| 2021-09-30 | $465,907 | 34,640 | Shares | Defined | 2021-11-16 | |
| 2021-09-30 | $455,955 | 33,900 | Call | Defined | 2021-11-16 | |
| 2021-09-30 | $162,745 | 12,100 | Put | Defined | 2021-11-16 | |
| 2021-06-30 | $581,339 | 45,100 | Put | Defined | 2021-08-16 | |
| 2021-06-30 | $1,575,054 | 122,192 | Shares | Defined | 2021-08-16 | |
| 2021-06-30 | $800,469 | 62,100 | Call | Defined | 2021-08-16 | |
| 2021-03-31 | $562,135 | 31,831 | Shares | Defined | 2021-05-18 | |
| 2020-03-31 | $43,693 | 12,070 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||