JANUS HENDERSON GROUP PLC

Position in CSTM — Constellium SE

CIK 1274173 LONDON, X0

Back to CSTM Full portfolio

Position in CSTM

as of Mar 31, 2026 · filed May 18, 2026 Compact

Position Value

$10,798,018

+$9,852,616 QoQ

Shares Held

439,301

+775.9% QoQ

Ownership

0.323%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 0% Shared 89% None 11%

Common Shares in CSTM Over Time

Shares Held

Position Value (USD)

Position in Aluminum

Basic Materials · as of Mar 31, 2026

JANUS HENDERSON GROUP PLC holds $23,280,263 across 4 Aluminum names. CSTM ranks #1 (46.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CSTM	Constellium SE This page	439,301	$10,798,018
2	AA	Alcoa Corp	155,393	$10,307,217
3	CENX	Century Aluminum Co	22,906	$1,344,353
4	KALU	Kaiser Aluminum Corp	6,893	$830,675

All Filings in CSTM

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$10,798,018	439,301	+775.9%	Shares	Defined	2026-05-18
2025-12-31	$945,402	50,154	-97.2%	Shares	Defined	2026-02-17
2025-09-30	$26,939,227	1,810,432	-21.0%	Shares	Defined	2025-11-14
2025-06-30	$30,473,319	2,291,227	+2.1%	Shares	Defined	2025-08-14
2025-03-31	$22,646,268	2,244,427	-65.2%	Shares	Defined	2025-05-15
2024-12-31	$66,193,128	6,445,290	+4.8%	Shares	Defined	2025-02-14
2024-09-30	$100,047,048	6,152,955	+0.0%	Shares	Defined	2024-11-14
2024-06-30	$115,964,898	6,151,984	-40.4%	Shares	Defined	2024-08-14
2024-03-31	$228,249,578	10,323,364	-0.3%	Shares	Defined	2024-05-15
2023-12-31	$206,651,788	10,353,296	+0.1%	Shares	Defined	2024-02-14
2023-09-30	$188,220,195	10,341,769	-2.9%	Shares	Defined	2023-11-14
2023-06-30	$183,163,866	10,649,062	-0.0%	Shares	Defined	2023-08-14
2023-03-31	$162,728,088	10,649,744	+2.3%	Shares	Defined	2023-05-15
2022-12-31	$123,116,892	10,407,176	+6.5%	Shares	Defined	2023-02-14
2022-09-30	$99,067,222	9,769,943	+4.5%	Shares	Defined	2023-01-13
2022-06-30	$123,499,629	9,348,950	+1.7%	Shares	Defined	2022-08-15
2022-03-31	$165,493,944	9,194,108	-7.5%	Shares	Defined	2022-05-16
2021-12-31	$178,087,153	9,943,448	-1.5%	Shares	Defined	2022-02-14
2021-09-30	$189,621,134	10,096,972	+5.7%	Shares	Defined	2021-11-16
2021-06-30	$180,980,648	9,550,430	-3.0%	Shares	Defined	2021-08-16
2021-03-31	$144,782,240	9,849,132	+29.9%	Shares	Defined	2021-05-17
2020-12-31	$106,036,421	7,579,444	-10.5%	Shares	Defined	2021-02-16
2020-09-30	$66,470,589	8,467,591	+3.5%	Shares	Defined	2020-11-16
2020-06-30	$62,831,930	8,181,241	-3.7%	Shares	Defined	2020-08-14
2020-03-31	$44,256,537	8,494,537	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.