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SeaStar Medical
ICU

18 hedge funds and large institutions have $582K invested in SeaStar Medical in 2026 Q2 according to their latest regulatory filings, with 3 funds opening new positions, 3 increasing their positions, 4 reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

200% more first-time investments, than exits

New positions opened: 3 | Existing positions closed: 1

19% more capital invested

Capital invested by funds: $489K → $582K (+$92.7K)

6% more funds holding

Funds holding: 17 → 18 (+1)

0.67% more ownership

Funds ownership: 3.29% → 3.97% (+0.67%)

25% less repeat investments, than reductions

Existing positions increased: 3 | Existing positions reduced: 4

Holders
18
Holders Change
+1
Holders Change %
+5.88%
% of All Funds
0.22%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
3
Increased
3
Reduced
4
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
UBS Group
UBS Group
Switzerland
+$116K
2
Northern Trust
Northern Trust
Illinois
+$39.6K
3
Vanguard Capital Management
Vanguard Capital Management
Pennsylvania
+$16.4K
4
PNC Financial Services Group
PNC Financial Services Group
Pennsylvania
+$12.2K
5
Barclays
Barclays
United Kingdom
+$15

Top Sellers

Rank Fund Capital Flow
1
Jane Street
Jane Street
New York
-$58.3K
2
Geode Capital Management
Geode Capital Management
Massachusetts
-$23K
3
TRCT
Tower Research Capital (TRC)
New York
-$148
4
Osaic Holdings
Osaic Holdings
Arizona
-$133
5
Morgan Stanley
Morgan Stanley
New York
-$74

ICU Hedge Fund Activity: Q2 2026 in Review

18 of the 8,318 institutional investors tracked by Wall St. Rank reported a position in SeaStar Medical (ICU) for Q2 2026, worth a combined $582K — up 19% from $489K a quarter earlier.

Buyers outnumbered sellers: 3 funds opened new ICU positions and 1 closed out — a net gain of 2 holders — while 3 added to existing stakes and 4 trimmed.

The largest buyer was UBS Group, adding an estimated $116K. The largest seller was Jane Street, cutting an estimated $58.3K.

  • 18 institutional investors held SeaStar Medical (ICU) as of Q2 2026, up from 17 in Q1 2026.
  • Funds reported $582K of SeaStar Medical stock for Q2 2026, up 19% quarter-over-quarter.
  • 3 funds opened new SeaStar Medical positions in Q2 2026 and 1 closed out, a net change of +2 holders.
  • The largest SeaStar Medical buyer in Q2 2026 was UBS Group, an estimated $116K added.
  • The largest SeaStar Medical seller in Q2 2026 was Jane Street, an estimated $58.3K sold.

Based on aggregated 13F filings for Q2 2026.