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Constellium
CSTM

237 hedge funds and large institutions have $1.91B invested in Constellium in 2025 Q3 according to their latest regulatory filings, with 38 funds opening new positions, 104 increasing their positions, 66 reducing their positions, and 23 closing their positions.

New
Increased
Maintained
Reduced
Closed

135% more call options, than puts

Call options by funds: $15.9M | Put options by funds: $6.77M

65% more first-time investments, than exits

New positions opened: 38 | Existing positions closed: 23

58% more repeat investments, than reductions

Existing positions increased: 104 | Existing positions reduced: 66

9% more capital invested

Capital invested by funds: $1.76B → $1.91B (+$150M)

6% more funds holding

Funds holding: 224 → 237 (+13)

0% more funds holding in top 10

Funds holding in top 10: 9 → 9 (0)

0.6% less ownership

Funds ownership: 92.69% → 92.09% (-0.6%)

Holders
237
Holders Change
+13
Holders Change %
+5.8%
% of All Funds
3.11%
Holding in Top 10
9
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.12%
New
38
Increased
104
Reduced
66
Closed
23
Calls
$15.9M
Puts
$6.77M
Net Calls
+$9.16M
Net Calls Change
-$4.23M

Top Buyers

1
Millennium Management
Millennium Management
New York
+$25.9M
2
Vanguard Group
Vanguard Group
Pennsylvania
+$13.4M
3
Morgan Stanley
Morgan Stanley
New York
+$13M
4
AQR Capital Management
AQR Capital Management
Connecticut
+$12.8M
5
N
Nuveen
North Carolina
+$10.1M

Top Sellers

1
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$132M
2
ECA
Encompass Capital Advisors
New York
-$15.7M
3
Thrivent Financial for Lutherans
Thrivent Financial for Lutherans
Minnesota
-$9.51M
4
Point72 Asset Management
Point72 Asset Management
Connecticut
-$8.3M
5
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$6.88M
Name Holding Trade Value Shares
Change 		Change in
Stake
X
176
Xponance
Pennsylvania
$167K +$1.7K +119 +1%
BCM
177
Bayesian Capital Management
New York
$165K +$159K +11,100 New
TRCT
178
Tower Research Capital (TRC)
New York
$163K -$195K -13,648 -55%
Focus Partners Wealth
179
Focus Partners Wealth
Massachusetts
$161K +$147K +10,274 New
JG
180
Jain Global
New York
$161K +$155K +10,819 New
N
181
Numerai
California
$154K +$148K +10,362 New
Principal Financial Group
182
Principal Financial Group
Iowa
$154K +$148K +10,317 New
ECM
183
EMC Capital Management
Texas
$151K – – –
Ohio Public Employees Retirement System (OPERS)
184
Ohio Public Employees Retirement System (OPERS)
Ohio
$98K +$6.32K +442 +7%
SCM
185
Sterling Capital Management
North Carolina
$94.5K +$54.3K +3,796 +149%
GCS
186
Gordian Capital (Singapore)
Singapore
$84.8K +$81.5K +5,700 New
QL
187
Quarry LP
New York
$83.5K +$28K +1,960 +54%
VCM
188
Versant Capital Management
Arizona
$76.5K – – –
AB
189
Amalgamated Bank
New York
$68K – – –
KBC Group
190
KBC Group
Belgium
$63K – – –
QCG
191
Quadrant Capital Group
Ohio
$54.7K +$52.6K +3,677 New
Nomura Asset Management
192
Nomura Asset Management
Japan
$53.6K +$21.5K +1,500 +71%
S
193
SignatureFD
Georgia
$51.4K +$815 +57 +2%
GWM
194
Geneos Wealth Management
Colorado
$44.6K – – –
GI
195
GAMMA Investing
California
$35.4K +$3.55K +248 +12%
EWA
196
EverSource Wealth Advisors
Alabama
$34.9K +$28.6K +2,002 +579%
EP
197
Essential Partners
California
$34.1K +$19.3K +1,349 +143%
Nisa Investment Advisors
198
Nisa Investment Advisors
Missouri
$31.4K – – –
Group One Trading
199
Group One Trading
Illinois
$29.4K -$998K -69,795 -97%
AF
200
Allworth Financial
California
$20.2K +$17.4K +1,217 +851%
6 7
8
9 10

CSTM Hedge Fund Activity: Q3 2025 in Review

237 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Constellium (CSTM) for Q3 2025, worth a combined $1.91B — up 8.5% from $1.76B a quarter earlier.

Buyers outnumbered sellers: 38 funds opened new CSTM positions and 23 closed out — a net gain of 15 holders — while 104 added to existing stakes and 66 trimmed.

The largest buyer was Millennium Management, adding an estimated $25.9M. The largest seller was T. Rowe Price Investment Management, cutting an estimated $132M.

  • 237 institutional investors held Constellium (CSTM) as of Q3 2025, up from 224 in Q2 2025.
  • Funds reported $1.91B of Constellium stock for Q3 2025, up 8.5% quarter-over-quarter.
  • 38 funds opened new Constellium positions in Q3 2025 and 23 closed out, a net change of +15 holders.
  • The largest Constellium buyer in Q3 2025 was Millennium Management, an estimated $25.9M added.
  • The largest Constellium seller in Q3 2025 was T. Rowe Price Investment Management, an estimated $132M sold.

Based on aggregated 13F filings for Q3 2025.