SeaStar Medical
ICU
20 hedge funds and large institutions have $191K invested in SeaStar Medical in 2025 Q4 according to their latest regulatory filings, with 1 funds opening new positions, 5 increasing their positions, 1 reducing their positions, and 8 closing their positions.
400% more repeat investments, than reductions
Existing positions increased: 5 | Existing positions reduced: 1
0.17% less ownership
Funds ownership: 0.39% → 0.22% (-0.17%)
26% less funds holding
Funds holding: 27 → 20 (-7)
69% less capital invested
Capital invested by funds: $624K → $191K (-$433K)
88% less first-time investments, than exits
New positions opened: 1 | Existing positions closed: 8
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
+$56.1K |
| 2 |
Northern Trust
Chicago,
Illinois
|
+$24.6K |
| 3 |
TFA
Trinity Financial Advisors
Columbus,
Ohio
|
+$11K |
| 4 |
Goldman Sachs
New York
|
+$1.86K |
| 5 |
UBS Group
Zurich,
Switzerland
|
+$1.24K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Geode Capital Management
Boston,
Massachusetts
|
-$148K |
| 2 |
Millennium Management
New York
|
-$102K |
| 3 |
XT
XTX Topco
George Town,
Cayman Islands
|
-$27.7K |
| 4 |
Raymond James Financial
St Petersburg,
Florida
|
-$10.1K |
| 5 |
WT
Whittier Trust
South Pasadena,
California
|
-$3.24K |
ICU Hedge Fund Activity: Q4 2025 in Review
20 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in SeaStar Medical (ICU) for Q4 2025, worth a combined $191K — down 69% from $624K a quarter earlier.
Sellers outnumbered buyers: 8 funds closed out of ICU and 1 opened new positions — a net loss of 7 holders — while 1 trimmed existing stakes and 5 added.
The largest buyer was Jane Street, opening a new position worth an estimated $56.1K. The largest seller was Geode Capital Management, exiting entirely with an estimated $148K sold.
- 20 institutional investors held SeaStar Medical (ICU) as of Q4 2025, down from 27 in Q3 2025.
- Funds reported $191K of SeaStar Medical stock for Q4 2025, down 69% quarter-over-quarter.
- 1 fund opened new SeaStar Medical positions in Q4 2025 and 8 closed out, a net change of -7 holders.
- The largest SeaStar Medical buyer in Q4 2025 was Jane Street, an estimated $56.1K added.
- The largest SeaStar Medical seller in Q4 2025 was Geode Capital Management, an estimated $148K sold.
Based on aggregated 13F filings for Q4 2025.