SeaStar Medical Holding Corp - Common stock, par value $0.0001 per share (ICU) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2024 to Q4 2025

Type / Class
Equity / Common stock, par value $0.0001 per share
Symbol
ICU on Nasdaq
Shares outstanding
39,846,496
Price per share
$0.24
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
797,536
Total reported value
$191,006
% of total 13F portfolios
0%
Share change
-296,199
Value change
-$239,885
Number of holders
18
Price from insider filings
$0.24
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of SeaStar Medical Holding Corp - Common stock, par value $0.0001 per share (ICU) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
INTRACOASTAL CAPITAL, LLC 10% 0% $955,360 +$211,798 3,980,665 +28% Mitchell P. Kopin 31 Dec 2025
ARMISTICE CAPITAL, LLC 5% -50% $864,997 +$263,221 1,466,096 +44% Armistice Capital, LLC 30 Jun 2025
Ayrton Capital LLC 2.6% -60% $173,673 294,361 0% Ayrton Capital LLC 30 Jun 2025

As of 31 Dec 2025, 18 institutional investors reported holding 797,536 shares of SeaStar Medical Holding Corp - Common stock, par value $0.0001 per share (ICU). This represents 2% of the company’s total 39,846,496 outstanding shares.

Institutional Holders of SeaStar Medical Holding Corp - Common stock, par value $0.0001 per share (ICU) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 797,536 $191,006 -$239,885 $0.24 18
2025 Q3 1,093,735 $624,252 +$354,548 $0.57 26
2025 Q2 481,730 $204,737 -$936,285 $0.43 25
2025 Q1 902,474 $1,495,736 +$1,191,145 $1.66 25
2024 Q4 181,242 $351,256 +$59,877 $1.94 19
2024 Q3 136,569 $584,327 -$174,893 $4.26 15
2024 Q2 150,877 $1,145,286 +$1,145,286 $7.59 16