CONSTELLIUM SE (CSTM) is held by 178 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, 124 institutions opened or increased positions in CONSTELLIUM SE while 55 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: 124 buying versus 55 selling.

How many hedge funds hold CSTM?

178 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 124 buyers versus 55 sellers — net inflows.

CONSTELLIUM SE

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

178

Holders

(13 Elite)

$2.6B

Total Value

69% (179)

Consensus

124 buying - 55 selling

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

Smart Money Verdict

View all

Held by 178 funds

13 elite

Who's Trading

Source dates: Price Aug 28, 2026 · Insiders Jul 13, 2026 · Activists Aug 6, 2026 · Congress none

Activist

FMR LLC1.6%Aug 6, 2026

InsiderJIJoerg IngridTax 3K shJul 10, 2026

InsiderOJOrmerod JohnSell $280KJun 4, 2026

Checking access…

View all insider trades View all activist filings

Checking access…

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Decreased	12.8M(-1.3%)	$408M	0.0%	+151.51%	0
MORGAN STANLEY	Increased	6.2M(+93.5%)	$197.1M	0.0%	+11.35%	48
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	4.4M(+11.8%)	$140M	0.0%	+2.69%	34
AMERICAN CENTURY COMPANIES INC	Increased	4.2M(+102.4%)	$134.5M	0.1%	+10.68%	49
STATE STREET CORP	Increased	3M(+6.9%)	$94.2M	0.0%	+36.10%	32
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Decreased	2.8M(-11.9%)	$90.7M	0.0%	+13.53%	0
Nuveen, LLC	Decreased	2.8M(-2.0%)	$88.3M	0.0%	+132.57%	0
AQR CAPITAL MANAGEMENT LLC	Increased	2.4M(+15.8%)	$76.6M	0.0%	+41.87%	34
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	Increased	2.3M(+10.8%)	$72.6M	0.1%	+6.54%	39
DED. E. Shaw & Co., Inc.	Decreased	2.2M(-32.0%)	$70.1M	0.0%	+82.91%	0
FMR LLC	Decreased	2.2M(-68.5%)	$69.9M	0.0%	+172.62%	0
GOLDMAN SACHS GROUP INC	Increased	2.1M(+51.0%)	$66M	0.0%	+49.50%	41
MILLENNIUM MANAGEMENT LLC	Decreased	2M(-43.6%)	$62.3M	0.0%	+97.92%	0
NANOMURA ASSET MANAGEMENT INTERNATIONAL INC.	Decreased	1.9M(-3.0%)	$59.2M	0.1%	+43.28%	0
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.8M(+7.3%)	$57M	0.0%	+45.78%	32
ALLIANCEBERNSTEIN L.P.	Decreased	2.2M(-6.7%)	$53.1M	0.0%	+7.13%	0
JPMORGAN CHASE & CO	Decreased	1.1M(-44.1%)	$35.9M	0.0%	+99.16%	0
WESTWOOD HOLDINGS GROUP INC	Decreased	1.1M(-21.6%)	$35M	0.3%	+5.23%	0
MWMARSHALL WACE, LLP	Increased	1.1M(+7840.0%)	$34.9M	0.0%	-14.02%	47
PANAGORA ASSET MANAGEMENT INC	Increased	1M(+48.7%)	$33.4M	0.1%	+18.86%	48

Showing 1-20 of 181

Per page:

1 / 10

CSTMCONSTELLIUM SE

Continue exploring

Smart money flow

Track where institutional capital is flowing

Discover new institutional entries

Fresh positions initiated this quarter

Check sector trends

Capital flows across GICS sectors

Other Basic Materials stocks held by institutions

LINLINDE PLC

359 holders · $179.5B

ECLECOLAB INC

350 holders · $56.5B

SHWSHERWIN-WILLIAMS CO/THE

347 holders · $61.5B

NEMNEWMONT MINING CORP

345 holders · $66.7B

FCXFREEPORT-MCMORAN INC

343 holders · $68.5B

APDAIR PRODUCTS & CHEMICALS INC

VMCVULCAN MATERIALS CO

315 holders · $34.3B

DOWDOW CHEMICAL CO/THE

310 holders · $14.3B

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

Smart Money Verdict

Who's Trading

Top Holders

Continue exploring

Other Basic Materials stocks held by institutions