HENNESSY ADVISORS INC

Position in CSTM — Constellium SE

CIK 1145255 NOVATO, CA

Position in CSTM

as of Jun 30, 2026 · filed Jul 16, 2026 Compact

Position Value

$9,385,715

New position

Shares Held

294,500

first reported quarter

Ownership

0.216%

of shares outstanding

% of Portfolio

0.30%

of 13F equity value

Holder Rank

#3

of 71 holders

Holding Since

Jun 2026

1 quarter on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Jun 30, 2026

HENNESSY ADVISORS INC holds $28,057,547 across 3 Aluminum names. CSTM ranks #2 (33.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	KALU	Kaiser Aluminum Corp	54,400	$10,642,272
2	CSTM	Constellium SE This page	294,500	$9,385,715
3	AA	Alcoa Corp	154,000	$8,029,560

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$9,385,715	294,500	—	Shares	Sole	2026-07-16
No filing history on record for this holder in this stock.