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Constellium SE

CSTM
Exchange
NYSE
Industry
Secondary Smelting & Refining of Nonferrous Metals
SEC CIK
0001563411

In the last 90 days, Constellium SE insiders filed 1 open-market purchase and 0 sales; 389 institutions reported holding it in 13F filings for Q2 2026, worth $3.85B in total; no superinvestor holds it.

Q3 2025 vs. Q2 2025

How the institutions holding Constellium SE changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of CSTM: Q2 2025 compared with Q3 2025
MeasureQ2 2025Of which not filed for Q3 2025Q3 2025Change
Holders2243237+16
Shares132.5M130.3K128.5M−3.83M (−2.9%)
Value$1.76B$1.73M$1.91B+$152.0M (+8.6%)

3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (38)

Institutions that held Constellium SE at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to CSTM in Q3 2025
InstitutionSharesValue% of portfolio
Sequoia Financial Advisors, LLC193,279$2.88M0.02%
Healthcare of Ontario Pension Plan Trust Fund164,300$2.44M0.00%
GW&K Investment Management, LLC160,030$2.38M0.02%
Knights of Columbus Asset Advisors LLC132,303$1.97M0.11%
Martingale Asset Management L P76,958$1.15M0.03%
New Century Financial Group, LLC68,442$1.02M1.81%
Occudo Quantitative Strategies LP43,891$653.1K0.08%
Mariner, LLC32,596$485.0K0.00%
XTX Topco Ltd30,783$458.1K0.02%
Allianz Asset Management GmbH27,630$411.1K0.00%
Counterpoint Mutual Funds LLC24,567$365.6K0.03%
Mercer Global Advisors Inc24,010$357.3K0.00%
Omers Administration Corp23,600$351.2K0.00%
Aristides Capital LLC18,719$278.5K0.08%
Neo Ivy Capital Management18,480$275.0K0.07%
Contravisory Investment Management, Inc.18,382$273.5K0.05%
SRS Capital Advisors, Inc.18,078$269.0K0.00%
Graham Capital Management, L.P.17,482$260.1K0.01%
CIBC Bancorp USA Inc.15,176$225.8K0.00%
Captrust Financial Advisors14,381$214.0K0.00%
FourThought Financial Partners, LLC14,335$213.3K0.02%
Bayesian Capital Management, LP11,100$165.2K0.03%
Colony Group, LLC10,274$161.4K0.00%
Jain Global LLC10,819$161.0K0.00%
Numerai GP LLC10,362$154.2K0.02%
Principal Financial Group Inc10,317$153.5K0.00%
Gordian Capital Singapore Pte Ltd5,700$84.8K0.11%
Quadrant Capital Group LLC3,677$54.7K0.00%
Optiver Holding B.V.826$12.3K0.00%
Point72 (DIFC) Ltd648$9.64K0.00%
Groupe la Francaise545$8.20K0.00%
J.Safra Asset Management Corp136$2.02K0.00%
Spire Wealth Management118$1.76K0.00%
Rockefeller Capital Management L.P.51$7590.00%
Sunbelt Securities, Inc.29$4320.00%
SWAN Capital LLC25$3720.00%
Advisory Services Network, LLC9$1340.00%
Sofos Investments, Inc.1$150.00%

Sold out (22)

Institutions that held Constellium SE at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of CSTM in Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Thrivent Financial for Lutherans714,779$9.51M
Point72 Asset Management, L.P.623,687$8.30M
Concentric Capital Strategies, LP168,770$2.24M
Nebula Research & Development LLC153,440$2.04M
TD Asset Management Inc152,552$2.03M
Shay Capital LLC85,000$1.13M
Centiva Capital, LP66,391$883.0K
SummerHaven Investment Management, LLC43,791$582.4K
LPL Financial LLC20,919$278.2K
FIL Ltd20,040$266.5K
Two Sigma Securities, LLC20,019$266.3K
111 Capital19,210$255.5K
Parallax Volatility Advisers, L.P.17,069$227.0K
Quadrature Capital Ltd15,964$212.2K
Inceptionr LLC14,686$195.3K
Net Worth Advisory Group13,949$185.5K
Magnetar Financial LLC12,615$167.8K
Farringdon Capital, Ltd.12,230$162.7K
Ballentine Partners, LLC11,174$148.6K
Virtu Financial LLC10,888$145.0K
Caitong International Asset Management Co., Ltd97$1.29K
Skopos Labs, Inc.6$80

Not filed for Q3 2025 yet (3)

Institutions that held Constellium SE at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding CSTM in Q2 2025 that haven't filed for Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Norges Bank112,716$1.50M
CIBC World Markets Corp17,542$233.3K
Financial Gravity Companies, Inc.13$173