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Equibles

JANE STREET GROUP, LLC

Position in CSTM — Constellium SE

CIK 1595888 NEW YORK, NY
Back to CSTM Full portfolio

Position in CSTM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$4,893,606
-$15,569,021 QoQ
Shares Held
153,549
-81.6% QoQ
Ownership
0.113%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#99
of 385 holders
Holding Since
Mar 2020
25 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 Jun 30, 2026
CallValue
$6,743,692
CallShares
211,600
PutValue
$4,965,346
PutShares
155,800

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, 2026

JANE STREET GROUP, LLC holds $30,712,310 across 4 Aluminum names. CSTM ranks #2 (15.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 KALU
Kaiser Aluminum Corp
 108,370 $21,200,422
2 CSTM
Constellium SE
This page 		153,549 $4,893,606
3 CENX
Century Aluminum Co
 81,564 $3,752,759
4 AA
Alcoa Corp
 16,600 $865,523

All Filings in CSTM

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $4,893,606 153,549
2026-06-30 $4,965,346 155,800
2026-06-30 $6,743,692 211,600
2026-03-31 $1,573,120 64,000
2026-03-31 $2,290,856 93,200
2026-03-31 $20,462,627 832,491
2025-12-31 $5,913,847 313,732
2025-12-31 $337,415 17,900
2025-09-30 $305,040 20,500
2025-09-30 $3,746,158 251,758
2025-09-30 $1,916,544 128,800
2025-06-30 $167,580 12,600
2025-06-30 $3,256,172 244,825
2025-06-30 $1,928,500 145,000
2025-03-31 $203,818 20,200
2025-03-31 $1,201,719 119,100
2025-03-31 $3,467,791 343,686
2024-12-31 $1,801,305 175,395
2024-12-31 $1,063,972 103,600
2024-09-30 $2,728,622 167,812
2024-09-30 $689,424 42,400
2024-06-30 $5,200,186 275,872
2024-03-31 $2,660,208 120,317
2023-12-31 $3,002,182 150,410
2023-09-30 $797,141 43,799
2023-06-30 $1,265,128 73,554
2023-03-31 $351,791 23,023
2022-12-31 $136,636 11,550
2022-06-30 $140,105 10,606
2022-03-31 $1,153,728 64,096
2022-03-31 $2,649,600 147,200
2022-03-31 $1,204,200 66,900
2021-12-31 $3,967,065 221,500
2021-12-31 $1,108,629 61,900
2021-12-31 $273,467 15,269
2021-09-30 $2,640,468 140,600
2021-09-30 $1,817,904 96,800
2021-09-30 $539,811 28,744
2021-06-30 $5,031,225 265,500
2021-06-30 $1,684,579 88,896
2021-06-30 $3,604,290 190,200
2021-03-31 $1,609,708 109,504
2021-03-31 $764,400 52,000
2021-03-31 $7,673,400 522,000
2020-12-31 $1,023,633 73,169
2020-12-31 $979,300 70,000
2020-12-31 $5,768,077 412,300
2020-09-30 $239,754 30,542
2020-09-30 $397,995 50,700
2020-09-30 $467,860 59,600

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