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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.

13F holders, Q3 2025

Institutional positions in Constellium SE as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
237
+16 vs. Q2 2025
Shares held
128.5M
−3.83M (−2.9%) vs. Q2 2025
Total value
$1.91B
+$152.0M (+8.6%) vs. Q2 2025
New holders
38
104 more added
Sold out
22
66 more reduced

3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CSTM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 237 institutions
Q1 2021: 135 institutionsQ2 2021: 153 institutionsQ3 2021: 162 institutionsQ4 2021: 161 institutionsQ1 2022: 183 institutionsQ2 2022: 189 institutionsQ3 2022: 179 institutionsQ4 2022: 185 institutionsQ1 2023: 183 institutionsQ2 2023: 187 institutionsQ3 2023: 191 institutionsQ4 2023: 193 institutionsQ1 2024: 207 institutionsQ2 2024: 224 institutionsQ3 2024: 222 institutionsQ4 2024: 219 institutionsQ1 2025: 220 institutionsQ2 2025: 224 institutionsQ3 2025: 237 institutionsQ4 2025: 253 institutionsQ1 2026: 315 institutionsQ2 2026: 389 institutions
Value heldQ3 2025: $1.91B
Q1 2021: $1.80BQ2 2021: $2.46BQ3 2021: $2.39BQ4 2021: $2.27BQ1 2022: $2.36BQ2 2022: $1.76BQ3 2022: $1.35BQ4 2022: $1.57BQ1 2023: $2.04BQ2 2023: $2.34BQ3 2023: $2.46BQ4 2023: $2.67BQ1 2024: $3.04BQ2 2024: $2.58BQ3 2024: $2.21BQ4 2024: $1.39BQ1 2025: $1.33BQ2 2025: $1.76BQ3 2025: $1.91BQ4 2025: $2.34BQ1 2026: $3.08BQ2 2026: $3.85B
Institutions holding CSTM and their total value by quarter
QuarterHoldersValue
Q2 2026389$3.85B
Q1 2026315$3.08B
Q4 2025253$2.34B
Q3 2025237$1.91B
Q2 2025224$1.76B
Q1 2025220$1.33B
Q4 2024219$1.39B
Q3 2024222$2.21B
Q2 2024224$2.58B
Q1 2024207$3.04B
Q4 2023193$2.67B
Q3 2023191$2.46B
Q2 2023187$2.34B
Q1 2023183$2.04B
Q4 2022185$1.57B
Q3 2022179$1.35B
Q2 2022189$1.76B
Q1 2022183$2.36B
Q4 2021161$2.27B
Q3 2021162$2.39B
Q2 2021153$2.46B
Q1 2021135$1.80B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Constellium SE; share changes are against Q2 2025.

Institutions holding CSTM in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
FNY Investment Advisers, LLC14$00.00%+1+7.7%Added
Huntington National Bank1$140.00%00.0%Unchanged
Sofos Investments, Inc.1$150.00%+1New
Advisory Services Network, LLC9$1340.00%+9New
Massmutual Trust Co FSB15$2230.00%00.0%Unchanged
Kilter Group LLC18$2680.00%00.0%Unchanged
Farther Finance Advisors, LLC21$3120.00%+20+2,000.0%Added
SWAN Capital LLC25$3720.00%+25New
Sunbelt Securities, Inc.29$4320.00%+29New
Larson Financial Group LLC30$4460.00%00.0%Unchanged
Cornerstone Planning Group LLC32$5180.00%+9+39.1%Added
Parkside Financial Bank & Trust45$6700.00%00.0%Unchanged
Assetmark, Inc47$6990.00%00.0%Unchanged
Rockefeller Capital Management L.P.51$7590.00%+51New
MAI Capital Management79$1.18K0.00%−180−69.5%Reduced
The PNC Financial Services Group, Inc.83$1.24K0.00%+1+1.2%Added
Principal Securities, Inc.85$1.26K0.00%00.0%Unchanged
IFP Advisors, Inc108$1.61K0.00%+44+68.8%Added
Spire Wealth Management118$1.76K0.00%+118New
J.Safra Asset Management Corp136$2.02K0.00%+136New
Atlantic Union Bankshares Corp200$2.98K0.00%00.0%Unchanged
Tompkins Financial Corp200$2.98K0.00%00.0%Unchanged
CIBC Private Wealth Group, LLC250$3.72K0.00%00.0%Unchanged
Smartleaf Asset Management LLC336$5.05K0.00%+128+61.5%Added
Harvest Fund Management Co., Ltd410$6.00K0.00%+303+283.2%Added
Rothschild Investment LLC494$7.35K0.00%+249+101.6%Added
Pacifica Partners Inc.500$7.53K0.00%00.0%Unchanged
Groupe la Francaise545$8.20K0.00%+545New
WealthCollab, LLC560$8.33K0.00%00.0%Unchanged
Parallel Advisors, LLC577$8.59K0.00%+30+5.5%Added
Point72 (DIFC) Ltd648$9.64K0.00%+648New
US Bancorp759$11.3K0.00%+28+3.8%Added
True Wealth Design, LLC798$11.9K0.00%+297+59.3%Added
Optiver Holding B.V.826$12.3K0.00%+826New
Harbor Capital Advisors, Inc.883$13.0K0.00%−809−47.8%Reduced
Clearstead Advisors, LLC1,024$15.2K0.00%+486+90.3%Added
Barrow Hanley Mewhinney & Strauss LLC1,042$15.5K0.00%−37−3.4%Reduced
Allworth Financial LP1,360$20.2K0.00%+1,217+851.0%Added
Group One Trading, L.P.1,973$29.4K0.00%−69,795−97.3%Reduced
Nisa Investment Advisors, LLC2,110$31.4K0.00%00.0%Unchanged
Essential Partners LLC2,290$34.1K0.01%+1,349+143.4%Added
EverSource Wealth Advisors, LLC2,348$34.9K0.00%+2,002+578.6%Added
GAMMA Investing LLC2,382$35.4K0.00%+248+11.6%Added
Geneos Wealth Management Inc.3,000$44.6K0.00%00.0%Unchanged
Signaturefd, LLC3,455$51.4K0.00%+57+1.7%Added
Nomura Asset Management Co Ltd3,600$53.6K0.00%+1,500+71.4%Added
Quadrant Capital Group LLC3,677$54.7K0.00%+3,677New
KBC Group NV4,238$63.0K0.00%00.0%Unchanged
Amalgamated Bank4,542$68.0K0.00%00.0%Unchanged
Versant Capital Management, Inc5,138$76.5K0.01%00.0%Unchanged
Quarry LP5,610$83.5K0.02%+1,960+53.7%Added
Gordian Capital Singapore Pte Ltd5,700$84.8K0.11%+5,700New
Sterling Capital Management LLC6,349$94.5K0.00%+3,796+148.7%Added
Public Employees Retirement System of Ohio6,584$98.0K0.00%+442+7.2%Added
EMC Capital Management10,152$151.0K0.07%00.0%Unchanged
Principal Financial Group Inc10,317$153.5K0.00%+10,317New
Numerai GP LLC10,362$154.2K0.02%+10,362New
Jain Global LLC10,819$161.0K0.00%+10,819New
Colony Group, LLC10,274$161.4K0.00%+10,274New
Tower Research Capital LLC (TRC)10,972$163.3K0.00%−13,648−55.4%Reduced
Bayesian Capital Management, LP11,100$165.2K0.03%+11,100New
Xponance, Inc.11,220$167.0K0.00%+119+1.1%Added
Ameritas Investment Partners, Inc.11,894$177.0K0.01%−2,642−18.2%Reduced
Belpointe Asset Management LLC11,920$177.4K0.01%00.0%Unchanged
FourThought Financial Partners, LLC14,335$213.3K0.02%+14,335New
Captrust Financial Advisors14,381$214.0K0.00%+14,381New
CIBC Bancorp USA Inc.15,176$225.8K0.00%+15,176New
Prudential Financial Inc16,425$244.4K0.00%+65+0.4%Added
Graham Capital Management, L.P.17,482$260.1K0.01%+17,482New
Pictet Asset Management Holding SA17,900$266.4K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.18,078$269.0K0.00%+18,078New
Contravisory Investment Management, Inc.18,382$273.5K0.05%+18,382New
Neo Ivy Capital Management18,480$275.0K0.07%+18,480New
Aristides Capital LLC18,719$278.5K0.08%+18,719New
Omers Administration Corp23,600$351.2K0.00%+23,600New
Mercer Global Advisors Inc24,010$357.3K0.00%+24,010New
Polymer Capital Management (US) LLC24,416$363.3K0.05%−7,053−22.4%Reduced
Counterpoint Mutual Funds LLC24,567$365.6K0.03%+24,567New
Voya Investment Management LLC25,806$384.0K0.00%−123,895−82.8%Reduced
Virtus ETF Advisers LLC26,000$386.9K0.21%00.0%Unchanged
Metis Global Partners, LLC26,504$394.4K0.01%00.0%Unchanged
KLP Kapitalforvaltning AS26,600$395.8K0.00%00.0%Unchanged
Advisors Asset Management, Inc.26,784$398.5K0.01%−51−0.2%Reduced
ProShare Advisors LLC27,244$405.4K0.00%−4,851−15.1%Reduced
Allianz Asset Management GmbH27,630$411.1K0.00%+27,630New
Ethic Inc.28,827$428.9K0.01%−4,286−12.9%Reduced
Prelude Capital Management, LLC29,737$442.5K0.03%+7,267+32.3%Added
Wiley Bros.-Aintree Capital, LLC30,575$455.0K0.00%−1,125−3.5%Reduced
XTX Topco Ltd30,783$458.1K0.02%+30,783New
Mariner, LLC32,596$485.0K0.00%+32,596New
Teacher Retirement System of Texas32,667$486.1K0.00%−3,557−9.8%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)33,021$491.4K0.00%00.0%Unchanged
Wolverine Trading, LLC32,889$494.3K0.01%−93,838−74.0%Reduced
PharVision Advisers, LLC33,893$504.3K0.28%+22,838+206.6%Added
Summit Global Investments34,608$515.0K0.03%−2,117−5.8%Reduced
State Board of Administration of Florida Retirement System36,160$538.1K0.00%00.0%Unchanged
Renaissance Technologies LLC36,300$540.1K0.00%−69,800−65.8%Reduced
Dynamic Technology Lab Private Ltd36,407$542.0K0.09%+11,636+47.0%Added
O'Shaughnessy Asset Management, LLC37,699$561.0K0.00%−3,015−7.4%Reduced
Arizona State Retirement System38,062$566.4K0.00%+525+1.4%Added