We are live on ! Find out more
CTM icon

Castellum
CTM

42 hedge funds and large institutions have $9.27M invested in Castellum in 2025 Q3 according to their latest regulatory filings, with 14 funds opening new positions, 16 increasing their positions, 4 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed

404% more capital inflows, than outflows

Capital inflows: $2.28M | Capital outflows: $452K

300% more repeat investments, than reductions

Existing positions increased: 16 | Existing positions reduced: 4

180% more first-time investments, than exits

New positions opened: 14 | Existing positions closed: 5

27% more funds holding

Funds holding: 33 → 42 (+9)

1.07% more ownership

Funds ownership: 8.08% → 9.15% (+1.1%)

Holders
42
Holders Change
+9
Holders Change %
+27.27%
% of All Funds
0.55%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
14
Increased
16
Reduced
4
Closed
5
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Goldman Sachs
Goldman Sachs
New York
+$428K
2
Vanguard Group
Vanguard Group
Pennsylvania
+$263K
3
State Street
State Street
Massachusetts
+$172K
4
Jane Street
Jane Street
New York
+$164K
5
BlackRock
BlackRock
New York
+$160K

Top Sellers

Rank Fund Capital Flow
1
Bank of New York Mellon
Bank of New York Mellon
New York
-$174K
2
Virtu Financial
Virtu Financial
New York
-$110K
3
Cubist Systematic Strategies
Cubist Systematic Strategies
Connecticut
-$78.9K
4
HRT Financial
HRT Financial
New York
-$52K
5
Squarepoint
Squarepoint
New York
-$25.1K

CTM Hedge Fund Activity: Q3 2025 in Review

42 of the 7,653 institutional investors tracked by Wall St. Rank reported a position in Castellum (CTM) for Q3 2025, worth a combined $9.27M — up 27% from $7.3M a quarter earlier.

Buyers outnumbered sellers: 14 funds opened new CTM positions and 5 closed out — a net gain of 9 holders — while 16 added to existing stakes and 4 trimmed.

The largest buyer was Goldman Sachs, opening a new position worth an estimated $428K. The largest seller was Bank of New York Mellon, cutting an estimated $174K.

  • 42 institutional investors held Castellum (CTM) as of Q3 2025, up from 33 in Q2 2025.
  • Funds reported $9.27M of Castellum stock for Q3 2025, up 27% quarter-over-quarter.
  • 14 funds opened new Castellum positions in Q3 2025 and 5 closed out, a net change of +9 holders.
  • The largest Castellum buyer in Q3 2025 was Goldman Sachs, an estimated $428K added.
  • The largest Castellum seller in Q3 2025 was Bank of New York Mellon, an estimated $174K sold.

Based on aggregated 13F filings for Q3 2025.