SeaStar Medical
ICU
26 hedge funds and large institutions have $1.5M invested in SeaStar Medical in 2025 Q1 according to their latest regulatory filings, with 8 funds opening new positions, 5 increasing their positions, 3 reducing their positions, and 2 closing their positions.
326% more capital invested
Capital invested by funds: $351K → $1.5M (+$1.14M)
300% more first-time investments, than exits
New positions opened: 8 | Existing positions closed: 2
67% more repeat investments, than reductions
Existing positions increased: 5 | Existing positions reduced: 3
30% more funds holding
Funds holding: 20 → 26 (+6)
0.63% more ownership
Funds ownership: 0.41% → 1.04% (+0.63%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AC
Armistice Capital
New York
|
+$1.15M |
| 2 |
TWP
Tyche Wealth Partners
Plano,
Texas
|
+$70.9K |
| 3 |
Raymond James Financial
St Petersburg,
Florida
|
+$70.1K |
| 4 |
Geode Capital Management
Boston,
Massachusetts
|
+$54.9K |
| 5 |
Northern Trust
Chicago,
Illinois
|
+$24K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Vanguard Group
Malvern,
Pennsylvania
|
-$63.8K |
| 2 |
HF
HRT Financial
New York
|
-$28K |
| 3 |
TRCT
Tower Research Capital (TRC)
New York
|
-$2.9K |
| 4 |
UBS Group
Zurich,
Switzerland
|
-$281 |
| 5 |
Goldman Sachs
New York
|
-$132 |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
HF
26
HRT Financial
New York
| – | -$28K | -1,463 | Closed |
|
|
27
UBS Group
Zurich,
Switzerland
| – | -$281 | -15 | Closed |
|
ICU Hedge Fund Activity: Q1 2025 in Review
26 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in SeaStar Medical (ICU) for Q1 2025, worth a combined $1.5M — up 326% from $351K a quarter earlier.
Buyers outnumbered sellers: 8 funds opened new ICU positions and 2 closed out — a net gain of 6 holders — while 5 added to existing stakes and 3 trimmed.
The largest buyer was Armistice Capital, opening a new position worth an estimated $1.15M. The largest seller was Vanguard Group, cutting an estimated $63.8K.
- 26 institutional investors held SeaStar Medical (ICU) as of Q1 2025, up from 20 in Q4 2024.
- Funds reported $1.5M of SeaStar Medical stock for Q1 2025, up 326% quarter-over-quarter.
- 8 funds opened new SeaStar Medical positions in Q1 2025 and 2 closed out, a net change of +6 holders.
- The largest SeaStar Medical buyer in Q1 2025 was Armistice Capital, an estimated $1.15M added.
- The largest SeaStar Medical seller in Q1 2025 was Vanguard Group, an estimated $63.8K sold.
Based on aggregated 13F filings for Q1 2025.