SEC 13F Intelligence

OMEROS CORP

CUSIP 682143AK8

Omeros Corp has 6 institutional holders in Filings Flow’s 13F database, together reporting 70.18M shares worth $142M as of Q1 2026. The largest reported holders are Whitebox Advisors LLC, Deepcurrents Investment Group LLC, and D. E. Shaw & Co., Inc..

Institutional Holders
6
Q1 2026
Reported Value
$142M
Ticker
unmapped
private placement or foreign
Quarters Tracked
2

Ownership Trend

Institutional holders
Q4 ’25: 6Q4 ’25Q1 ’26: 6Q1 ’26filingsflow.com
Total reported value
Q4 ’25: $209MQ4 ’25Q1 ’26: $142MQ1 ’26filingsflow.com

Holders

Mixed quarters
Manager% of PortfolioValueSharesQuarter
Clutterbuck Capital Management LLC$164M AUM5.42%$9M4.17MQ1 2026
DeepCurrents Investment Group LLC$3.1B AUM1.02%$32M15.86MQ1 2026
Affinity Asset Advisors, LLC$1.9B AUM0.68%$13M6.53MQ1 2026
Context Capital Management, LLC$4.3B AUM0.57%$25M12.21MQ1 2026
WHITEBOX ADVISORS LLC$8.1B AUM0.45%$36M18.03MQ1 2026
D. E. Shaw & Co., Inc.$166.3B AUM0.02%$27M13.38MQ1 2026
CAPSTONE INVESTMENT ADVISORS, LLC$57.4B AUM0.01%$4M5.00MQ3 2025OLDER

Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.