Constellium Ownership & Insider Activity

Constellium (CSTM) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 1.3% of shares outstanding. Institutional investors hold 44.0%. Over the past 90 days, insiders made 1 purchase worth $41K.

Shares Outstanding

135.528M

Shares Float

133.959M

Insider Shares Owned

1.714M

Insider % Owned

1.3%

Institutional Shares Held

59.657M

Institutional % Held

44.0%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

$41K total

Sales (90d)

Net Activity

Net Buying

Net Value (90d)

$41K

Constellium Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Aug 3, 2026	Jean-Christophe Deslarzes	DIRECTOR	BUY	1.490K	$27.24	$41K
Jun 4, 2026	John Ormerod	DIRECTOR	SELL	8.000K	$35.01	$280K
May 28, 2026	Marcus Becker	SVP CPO	SELL	10.391K	$34.93	$363K
May 14, 2026	Bradley Soultz	DIRECTOR	BUY	2.500K	$33.84	$85K
May 14, 2026	Martin Jarrett	SVP CHIEF INNOVATION OFFICER	SELL	4.716K	$33.46	$158K
May 12, 2026	Ludovic Piquier	SVP MANUF EXCELLENCE & CTO	SELL	1.000K	$33.57	$34K
May 11, 2026	Nicolas Brun	SVP PA, COMM & SUST	SELL	26.661K	$33.85	$902K
May 8, 2026	Stephane Corre	PRESIDENT, AS&I	SELL	5.000K	$33.52	$168K
May 5, 2026	Michiel Brandjes	DIRECTOR	SELL	10.400K	$31.25	$325K
May 5, 2026	Jack Guo	EVP & CFO	SELL	25.201K	$32.62	$822K
May 1, 2026	Philippe Hoffmann	PRESIDENT, A&T	SELL	50.000K	$31.92	$1.6M
May 1, 2026	Philip Ryan Jurkovic	SVP & CHRO	SELL	48.784K	$32.01	$1.6M
May 1, 2026	Stephane Corre	PRESIDENT, AS&I	SELL	5.000K	$32.04	$160K
May 1, 2026	Jean-Christophe Deslarzes	DIRECTOR	BUY	1.325K	$31.13	$41K