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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
PCM
151
Prelude Capital Management
New York
$442K +$104K +7,267 +32%
EI
152
Ethic Inc
New York
$429K -$61.3K -4,286 -13%
Allianz Asset Management
153
Allianz Asset Management
Germany
$411K +$395K +27,630 New
ProShare Advisors
154
ProShare Advisors
Maryland
$405K -$69.4K -4,851 -15%
AAM
155
Advisors Asset Management
Colorado
$399K -$730 -51 -0.2%
KK
156
KLP Kapitalforvaltning
Norway
$396K – – –
MGP
157
Metis Global Partners
California
$394K – – –
VEA
158
Virtus ETF Advisers
New York
$387K – – –
VOYA Investment Management
159
VOYA Investment Management
Georgia
$384K -$1.77M -123,895 -83%
CMF
160
Counterpoint Mutual Funds
California
$366K +$351K +24,567 New
PCM
161
Polymer Capital Management
New York
$363K -$101K -7,053 -22%
Mercer Global Advisors
162
Mercer Global Advisors
Colorado
$357K +$343K +24,010 New
OAC
163
OMERS Administration Corp
Ontario, Canada
$351K +$338K +23,600 New
AC
164
Aristides Capital
Kentucky
$279K +$268K +18,719 New
NICM
165
Neo Ivy Capital Management
New York
$275K +$264K +18,480 New
CIM
166
Contravisory Investment Management
Massachusetts
$274K +$263K +18,382 New
AAP
167
Arax Advisory Partners
Colorado
$269K +$259K +18,078 New
Pictet Asset Management
168
Pictet Asset Management
Switzerland
$266K – – –
GCM
169
Graham Capital Management
Connecticut
$260K +$250K +17,482 New
Prudential Financial
170
Prudential Financial
New Jersey
$244K +$930 +65 +0.4%
CBU
171
CIBC Bancorp USA
Illinois
$226K +$217K +15,176 New
CAPTRUST Financial Advisors
172
CAPTRUST Financial Advisors
North Carolina
$214K +$206K +14,381 New
FFP
173
FourThought Financial Partners
Florida
$213K +$205K +14,335 New
BAM
174
Belpointe Asset Management
Nevada
$177K – – –
AIP
175
Ameritas Investment Partners
Nebraska
$177K -$37.8K -2,642 -18%
5 6
7
8 9

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.