Constellium
CSTM • NYSE
Constellium is a aluminum company in the basic materials sector on NYSE, led by Jean-Marc Germain, with a market cap of $2.5B. As of Q3 2025, 92% of shares are held by 234 institutional investors, with BlackRock, Inc. as the largest holder at 10.05%.
CEOJean-Marc Germain
Overview
Overview of institutional ownership in CSTM as of Q3 2025 with a market cap of $2.1B
All Institutions
- Institutions
- 234
- Value Held
- $1.9B
- Shares Held
- 128.5M
- Avg Position
- $8.2M
- Median Position
- $1.0M
Hedge Funds
- Hedge Funds
- 42
- Value Held
- $524.9M
- Shares Held
- 35.3M
- Avg Position
- $12.5M
- Median Position
- $6.7M
Ownership Breakdown
Based on market cap of $2.1B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in CSTM as of Q3 2025
| Institution | Position Value |
|---|---|
B BlackRock, Inc. Institution | $208.6M 0.00% of portfolio |
 FMR LLC Institution | $201.1M 0.01% of portfolio |
B Bpifrance SA Institution | $187.4M 9.52% of portfolio |
 MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | $103.2M 0.08% of portfolio |
N Nut Tree Capital Management, LP Hedge Fund•Distressed | $77.6M 20.98% of portfolio |
T T. Rowe Price Investment Management, Inc. Insurance Manager | $76.1M 0.05% of portfolio |
 Encompass Capital Advisors LLC Hedge Fund•Long/Short | $63.5M 2.84% of portfolio |
 VANGUARD GROUP INC Institution | $49.1M 0.00% of portfolio |
N Nuveen, LLC Institution | $42.4M 0.01% of portfolio |
 STATE STREET CORP Institution | $38.2M 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for CSTM in Q3 2025
- Traded
- −$50.2M
- Buyers
- 142
- Sellers
- 86
- Total Bought
- +$200.5M
- Total Sold
- −$250.7M
- Avg Position
- $7.5M
Biggest Buyers
| Institution | Net Bought |
|---|---|
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | +$27.0M +1.8M shares |
VANGUARD GROUP INC Institution | +$14.0M +938.2K shares |
 MORGAN STANLEY RIA/Wealth | +$13.5M +910.4K shares |
 AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy | +$13.3M +894.8K shares |
N Nuveen, LLC Institution | +$10.6M +709.3K shares |
 BRIGHTLINE CAPITAL MANAGEMENT, LLC Hedge Fund•Value | +$9.3M +625.0K shares |
 Engineers Gate Manager LP Hedge Fund•Quant | +$8.8M +592.5K shares |
S SG Americas Securities, LLC Institution | +$6.5M +438.4K shares |
A AMERICAN CENTURY COMPANIES INC Institution | +$6.4M +428.2K shares |
 Voleon Capital Management LP Hedge Fund•Quant | +$5.2M +351.5K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
T T. Rowe Price Investment Management, Inc. Insurance Manager | −$136.8M −9.2M shares |
Encompass Capital Advisors LLC Hedge Fund•Long/Short | −$16.3M −1.1M shares |
 THRIVENT FINANCIAL FOR LUTHERANS Insurance Manager | −$9.5M −714.8K shares |
 Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy | −$8.3M −623.7K shares |
 HENDERSON GROUP PLC Institution | −$7.2M −480.8K shares |
N Nut Tree Capital Management, LP Hedge Fund•Distressed | −$6.6M −442.0K shares |
FMR LLC Institution | −$4.4M −295.1K shares |
 Marshall Wace LLP Institution | −$4.3M −290.9K shares |
 Trexquant Investment LP Hedge Fund•Quant | −$3.5M −234.8K shares |
C Cubist Systematic Strategies, LLC Institution | −$3.2M −212.4K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited CSTM in Q3 2025
- New Positions
- 15
- New Value
- $7.7M
- Exited Positions
- 20
- Exited Value
- $27.2M
New Positions
| Institution | Position Value |
|---|---|
 Sequoia Financial Advisors, LLC RIA/Wealth | $2.9M 193.3K shares |
 GANNETT WELSH & KOTLER Long Only Manager | $2.4M 160.0K shares |
N New Century Financial Group, LLC RIA/Wealth | $1.0M 68.4K shares |
 Virtus ETF Advisers LLC Long Only Manager | $386.9K 26.0K shares |
 Aristides Capital LLC Real Assets | $278.5K 18.7K shares |
N Neo Ivy Capital Management Hedge Fund•Quant | $275.0K 18.5K shares |
 FourThought Financial Partners, LLC RIA/Wealth | $213.3K 14.3K shares |
C Colony Group, LLC Institution | $161.4K 10.3K shares |
 Gordian Capital Singapore Pte Ltd Fund of Funds | $84.8K 5.7K shares |
O Optiver Holding B.V. Institution | $12.3K 826.0 shares |
Exited Positions
| Institution | Previous Position |
|---|---|
THRIVENT FINANCIAL FOR LUTHERANS Insurance Manager | $9.5M 714.8K shares |
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy | $8.3M 623.7K shares |
C Concentric Capital Strategies, LP Hedge Fund•Long/Short | $2.2M 168.8K shares |
T TD ASSET MANAGEMENT INC Institution | $2.0M 152.6K shares |
S Shay Capital LLC Institution | $1.1M 85.0K shares |
 Centiva Capital, LP Hedge Fund•Multi-Strategy | $883.0K 66.4K shares |
 SummerHaven Investment Management, LLC Long Only Manager | $582.4K 43.8K shares |
L LPL Financial LLC Institution | $278.2K 20.9K shares |
F FIL Ltd Institution | $266.5K 20.0K shares |
T TWO SIGMA SECURITIES, LLC Institution | $266.3K 20.0K shares |
Options Activity
Institutions with the largest Call and Put options positions in CSTM as of Q3 2025
- Call Positions
- 9
- Call Value
- $13.9M
- Put Positions
- 6
- Put Value
- $6.3M
Call Positions
| Institution | Position Value |
|---|---|
M MOORE CAPITAL MANAGEMENT, LP Hedge Fund•Global Macro | $7.6M 5.1K contracts |
J JANE STREET GROUP, LLC Institution | $1.9M 1.3K contracts |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $1.8M 1.2K contracts |
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $1.2M 807.0 contracts |
 Walleye Trading LLC RIA/Wealth | $592.2K 398.0 contracts |
 TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy | $488.1K 328.0 contracts |
W WOLVERINE TRADING, LLC Institution | $368.2K 245.0 contracts |
P Parallax Volatility Advisers, LLC Hedge Fund•Vol Arbitrage | - - contracts |
 Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | - - contracts |
Put Positions
| Institution | Position Value |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $4.5M 3.0K contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $742.5K 499.0 contracts |
W WOLVERINE TRADING, LLC Institution | $676.4K 450.0 contracts |
J JANE STREET GROUP, LLC Institution | $305.0K 205.0 contracts |
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | $55.1K 37.0 contracts |
Walleye Trading LLC RIA/Wealth | $26.8K 18.0 contracts |
Most Committed Institutions
Institutions with CSTM as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
 Kailix Advisors LLC RIA/Wealth | 22.34% $16.4M |
N Nut Tree Capital Management, LP Hedge Fund•Distressed | 20.98% $77.6M |
S Soapstone Management L.P. Hedge Fund•Long/Short | 16.86% $24.8M |
BRIGHTLINE CAPITAL MANAGEMENT, LLC Hedge Fund•Value | 9.91% $24.2M |
B Bpifrance SA Institution | 9.52% $187.4M |
B BEACONLIGHT CAPITAL, LLC Institution | 8.64% $18.9M |
 Mountaineer Partners Management, LLC Hedge Fund•Long/Short | 7.22% $12.4M |
I Ionic Capital Management LLC Hedge Fund•Multi-Strategy | 3.92% $3.3M |
Encompass Capital Advisors LLC Hedge Fund•Long/Short | 2.84% $63.5M |
B BEACON INVESTMENT ADVISORS LLC RIA/Wealth | 2.07% $5.1M |
Hedge Fund Spotlight
Discover hedge funds investing in CSTM
PANAGORA ASSET MANAGEMENT INC
Hedge Fund • Quant
Portfolio ManagerBryan David Belton
- Portfolio Value
- $24.8B
- Positions
- 1,146
- Last Reported
- Q3 2025
Sector Allocation
Position in Constellium
- Market Value
- $9.0M
- Shares Held
- 604.9K
- Portfolio Weight
- 0.04%
- Owned Since
- 2021-Q2
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Semiconductors Technology | $1.9B | 7.75% | |
Consumer Electronics Technology | $1.4B | 5.65% | |
Software - Infrastructure Technology | $1.4B | 5.45% |
