WHITEBOX ADVISORS LLC

Position in CSTM — Constellium SE

CIK 1257391 MINNEAPOLIS, MN

Position in CSTM

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$8,520,902

-$897,689 QoQ

Shares Held

346,660

-30.6% QoQ

Ownership

0.255%

of shares outstanding

% of Portfolio

0.58%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

18 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Mar 31, 2026

WHITEBOX ADVISORS LLC holds $8,520,902 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	346,660	$8,520,902

18 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$8,520,902	346,660	-30.6%	Shares	Sole	2026-05-15
2025-12-31	$9,418,591	499,660	-24.4%	Shares	Sole	2026-02-17
2025-09-30	$9,839,548	661,260	-21.6%	Shares	Sole	2025-11-14
2025-06-30	$11,211,753	842,989	+10.6%	Shares	Sole	2025-08-14
2025-03-31	$7,693,604	762,498	+38.1%	Shares	Sole	2025-05-15
2024-12-31	$5,671,956	552,284	+23.5%	Shares	Sole	2025-02-14
2024-09-30	$7,272,837	447,284	+40.1%	Shares	Sole	2024-11-14
2024-06-30	$6,019,954	319,361	-1.5%	Shares	Sole	2024-08-14
2024-03-31	$7,171,621	324,361	+125.6%	Shares	Sole	2024-05-15
2023-12-31	$2,869,170	143,746	+34.4%	Shares	Sole	2024-02-14
2021-12-31	$1,914,847	106,915	-12.4%	Shares	Sole	2022-02-14
2021-09-30	$2,291,516	122,019	-10.3%	Shares	Sole	2021-11-15
2021-06-30	$2,577,560	136,019	-21.4%	Shares	Sole	2021-08-16
2021-03-31	$2,543,379	173,019	-22.4%	Shares	Sole	2021-05-14
2020-12-31	$3,120,035	223,019	-26.4%	Shares	Sole	2021-02-16
2020-09-30	$2,378,699	303,019	+11.0%	Shares	Sole	2020-11-13
2020-06-30	$2,096,785	273,019	-1.8%	Shares	Sole	2020-08-14
2020-03-31	$1,448,478	278,019	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.