ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in CSTM — Constellium SE

CIK 1164508 BOSTON, MA

Position in CSTM

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$79,344,903

+$70,904,496 QoQ

Shares Held

3,228,027

+620.9% QoQ

Ownership

2.37%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

15 quarters on record

Voting authority Sole 96% Shared 0% None 4%

Basic Materials · as of Mar 31, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $109,280,671 across 2 Aluminum names. CSTM ranks #1 (72.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	CSTM	Constellium SE This page	3,228,027	$79,344,903
2	KALU	Kaiser Aluminum Corp	248,409	$29,935,768

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$79,344,903	3,228,027	+620.9%	Shares	Defined	2026-05-14
2025-12-31	$8,440,407	447,767	-51.3%	Shares	Defined	2026-02-13
2025-09-30	$13,678,023	919,222	-0.2%	Shares	Defined	2025-11-13
2025-06-30	$12,248,834	920,965	+170.4%	Shares	Defined	2025-08-13
2025-03-31	$3,436,522	340,587	+949.7%	Shares	Defined	2025-05-14
2024-12-31	$333,220	32,446	+2.4%	Shares	Defined	2025-02-12
2024-03-31	$700,444	31,680	-71.6%	Shares	Defined	2024-05-15
2022-06-30	$1,474,579	111,626	-33.7%	Shares	Defined	2022-08-15
2022-03-31	$3,030,606	168,367	-54.7%	Shares	Defined	2022-05-13
2021-06-30	$7,039,148	371,459	+5.4%	Shares	Defined	2021-08-13
2021-03-31	$5,181,603	352,490	-32.7%	Shares	Defined	2021-05-14
2020-12-31	$7,323,639	523,491	-59.7%	Shares	Defined	2021-02-12
2020-09-30	$10,185,225	1,297,481	+4.0%	Shares	Defined	2020-11-12
2020-06-30	$9,579,886	1,247,381	-0.7%	Shares	Defined	2020-08-12
2020-03-31	$6,541,634	1,255,592	—	Shares	Defined	2020-05-15
No filing history on record for this holder in this stock.