JANE STREET GROUP, LLC

Position in KALU — Kaiser Aluminum Corp

CIK 1595888 NEW YORK, NY

Back to KALU Full portfolio

Position in KALU

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$21,200,422

+$15,094,061 QoQ

Shares Held

108,370

+113.9% QoQ

Ownership

0.663%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#29

of 335 holders

Holding Since

Mar 2021

17 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in KALU Over Time

Shares Held

Position Value (USD)

Derivatives in KALU

reported options exposure · as of Jun 30, 2026

CallValue

$3,853,911

CallShares

19,700

PutValue

$1,330,284

PutShares

6,800

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. KALU ranks #1 (69.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	KALU	Kaiser Aluminum Corp This page	108,370	$21,200,422
2	CSTM	Constellium SE	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 KALU

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23 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,330,284	6,800	-13.9%	Put	Defined	2026-08-14
2026-06-30	$21,200,422	108,370	+113.9%	Shares	Defined	2026-08-14
2026-06-30	$3,853,911	19,700	+123.9%	Call	Defined	2026-08-14
2026-03-31	$6,106,361	50,671	+1.4%	Shares	Defined	2026-05-12
2026-03-31	$1,060,488	8,800	+31.3%	Call	Defined	2026-05-12
2026-03-31	$952,029	7,900	+182.1%	Put	Defined	2026-05-12
2025-12-31	$321,608	2,800	—	Put	Defined	2026-02-12
2025-12-31	$769,562	6,700	—	Call	Defined	2026-02-12
2025-12-31	$5,739,782	49,972	+237.1%	Shares	Defined	2026-02-12
2025-09-30	$1,143,819	14,824	-4.7%	Shares	Defined	2025-11-14
2025-06-30	$1,242,844	15,555	-71.8%	Shares	Defined	2025-08-14
2025-03-31	$3,345,616	55,190	+323.6%	Shares	Defined	2025-05-19
2024-12-31	$915,617	13,030	+44.2%	Shares	Defined	2025-02-14
2024-09-30	$655,507	9,039	-82.3%	Shares	Defined	2024-11-15
2024-06-30	$4,492,832	51,113	+47.6%	Shares	Defined	2024-08-15
2024-03-31	$3,094,268	34,627	+117.6%	Shares	Defined	2024-05-16
2023-09-30	$1,197,386	15,910	+289.1%	Shares	Defined	2023-11-15
2023-06-30	$292,935	4,089	-73.4%	Shares	Defined	2023-08-14
2022-12-31	$1,167,885	15,375	+284.2%	Shares	Defined	2023-02-15
2022-06-30	$316,518	4,002	+33.5%	Shares	Defined	2022-08-16
2021-12-31	$281,632	2,998	-83.2%	Shares	Defined	2022-02-15
2021-06-30	$2,210,224	17,898	-36.2%	Shares	Defined	2021-08-16
2021-03-31	$3,099,083	28,046	—	Shares	Defined	2021-05-18
No filing history on record for this holder in this stock.