CONSTELLIUM SE (CSTM) is held by 182 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is BlackRock, Inc. as of Q2 2026.

Are institutions buying or selling CSTM?

In Q2 2026, 127 institutions opened or increased positions in CONSTELLIUM SE while 56 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on CSTM?

HoldingsIntel scores CONSTELLIUM SE across four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) — with 3 of the 4 carrying data for CSTM. In Q2 2026, the institutional leg showed net inflows: 127 buying versus 56 selling.

How many hedge funds hold CSTM?

182 institutional investors report holding CONSTELLIUM SE (CSTM) as of Q2 2026, based on SEC 13F filings.

Is institutional money flowing into CSTM?

As of Q2 2026, tracked institutions in CONSTELLIUM SE show 127 buyers versus 56 sellers — net inflows.

CONSTELLIUM SE

CSTM·F21107101·US·Common Stock·Basic Materials - Aluminum-Activist

182

Holders

(13 Elite)

$2.7B

Total Value

69% (183)

Consensus

127 buying - 56 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Held by 182 funds

13 elite

Who's Trading

Source dates: Price Oct 13, 2026 · Insiders Aug 3, 2026 · Activists Aug 6, 2026 · Congress none

Activist

FMR LLC1.6%Aug 6, 2026

InsiderDJDeslarzes Jean-ChristopheBuy $41KAug 3, 2026

InsiderJIJoerg IngridTax 3K shJul 10, 2026

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	Action
BlackRock, Inc.	Decreased	12.8M(-1.3%)	$408M	0.0%	+131.42%	0
MORGAN STANLEY	Increased	6.2M(+93.5%)	$197.1M	0.0%	+4.65%	48
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	4.4M(+11.8%)	$140M	0.0%	+0.59%	34
AMERICAN CENTURY COMPANIES INC	Increased	4.2M(+102.4%)	$134.5M	0.1%	+4.30%	49
STATE STREET CORP	Increased	3M(+6.9%)	$94.2M	0.0%	+36.06%	32
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Decreased	2.8M(-11.9%)	$90.7M	0.0%	+11.59%	0
Nuveen, LLC	Decreased	2.8M(-2.0%)	$88.3M	0.0%	+121.70%	0
AQR CAPITAL MANAGEMENT LLC	Increased	2.4M(+15.8%)	$76.6M	0.0%	+34.89%	34
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	Increased	2.3M(+10.8%)	$72.6M	0.1%	+4.15%	39
DED. E. Shaw & Co., Inc.	Decreased	2.2M(-32.0%)	$70.1M	0.0%	+73.32%	0
FMR LLC	Decreased	2.2M(-68.5%)	$69.9M	0.0%	+74.06%	0
GOLDMAN SACHS GROUP INC	Increased	2.1M(+51.0%)	$66M	0.0%	+24.45%	41
MILLENNIUM MANAGEMENT LLC	Decreased	2M(-43.6%)	$62.3M	0.0%	+87.65%	0
NANOMURA ASSET MANAGEMENT INTERNATIONAL INC.	Decreased	1.9M(-3.0%)	$59.2M	0.1%	+35.28%	0
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.8M(+7.3%)	$57M	0.0%	+37.25%	32
ALLIANCEBERNSTEIN L.P.	Decreased	2.2M(-6.7%)	$53.1M	0.0%	+5.39%	0
Allianz Asset Management GmbH	Increased	1.5M(+62.6%)	$46.3M	0.0%	-4.20%	42
JPMORGAN CHASE & CO	Decreased	1.1M(-44.1%)	$35.9M	0.0%	+81.71%	0
WESTWOOD HOLDINGS GROUP INC	Decreased	1.1M(-21.6%)	$35M	0.3%	+3.74%	0
MWMARSHALL WACE, LLP	Increased	1.1M(+7840.0%)	$34.9M	0.0%	-19.33%	47

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APDAIR PRODUCTS AND CHEMICALS I

High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer

CONSTELLIUM SE

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