OMEROS CORP

OMERNASDAQ

$18.61+0.14 (+0.76%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

OMEROS CORP price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+341.0%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	8.39%	$57.5M	0.00%	Not reported
Ingalls & Snyder LLC	5.08%	$34.8M	0.95%	Not reported
UBS Group AG	4.37%	$29.9M	0.00%	Not reported
Vanguard Capital Management LLC	4.26%	$29.2M	0.00%	Not reported
State Street Corp	3.22%	$22.1M	0.00%	Not reported
Geode Capital Management, LLC	2.66%	$18.2M	0.00%	Not reported
Stifel Financial Corp	2.55%	$17.5M	0.01%	Not reported
Vanguard Portfolio Management LLC	1.34%	$9.16M	0.00%	Not reported
Invesco Ltd.	1.04%	$7.15M	0.00%	Not reported
Northern Trust Corp	1.01%	$6.92M	0.00%	Not reported
Rock Springs Capital Management LP	1.00%	$6.83M	0.33%	New Not reported
Corient Private Wealth LP	0.92%	$6.27M	0.01%	Not reported
Rubric Capital Management LP	0.91%	$6.25M	0.06%	Not reported
Charles Schwab Investment Management Inc	0.84%	$5.75M	0.00%	Not reported
Bank of Montreal	0.79%	$5.41M	0.00%	Not reported
Vanguard Fiduciary Trust Co	0.68%	$4.67M	0.00%	Not reported
Federated Hermes, Inc.	0.66%	$4.55M	0.01%	Not reported
Clutterbuck Capital Management LLC	0.62%	$4.28M	2.43%	Add 50.00%
Two Sigma Investments, LP	0.56%	$3.83M	0.00%	Not reported
Morgan Stanley	0.55%	$3.75M	0.00%	Not reported
Millennium Management LLC	0.48%	$3.27M	0.00%	Not reported
Susquehanna International Group, LLP	0.45%	$3.09M	0.00%	Not reported
Badgley Phelps Wealth Managers, LLC	0.37%	$2.51M	0.04%	Not reported
Wellington Management Group LLP	0.28%	$1.95M	0.00%	Add 9.21%
Bank of New York Mellon Corp	0.27%	$1.86M	0.00%	Not reported
Bank of America Corp	0.27%	$1.85M	0.00%	Not reported
Cambridge Investment Research Advisors, Inc.	0.26%	$1.76M	0.00%	Not reported
Nuveen, LLC	0.24%	$1.62M	0.00%	Not reported
Ancora Advisors LLC	0.23%	$1.6M	0.03%	Not reported
Goldman Sachs Group Inc	0.22%	$1.49M	0.00%	Not reported
Wells Fargo & Company	0.22%	$1.49M	0.00%	Not reported
Swiss National Bank	0.19%	$1.31M	0.00%	Not reported
Virtus Investment Advisers, LLC	0.18%	$1.27M	0.30%	Add 395.55%
Caption Management, LLC	0.18%	$1.24M	0.01%	Not reported
MML Investors Services, LLC	0.16%	$1.12M	0.00%	Add 104.90%
Ameriprise Financial Inc	0.16%	$1.12M	0.00%	Not reported
HighTower Advisors, LLC	0.16%	$1.1M	0.00%	Not reported
Rhumbline Advisers	0.15%	$1.05M	0.00%	Not reported
Brevan Howard Capital Management LP	0.14%	$932K	0.01%	Not reported
Citadel Advisors LLC	0.12%	$814K	0.00%	Not reported
Quantinno Capital Management LP	0.12%	$797K	0.00%	Add 36.15%
Balyasny Asset Management L.P.	0.12%	$795K	0.00%	Not reported
Jupiter Asset Management Ltd	0.11%	$725K	0.00%	Not reported
Deutsche Bank Ag\	0.10%	$714K	0.00%	Not reported
Citigroup Inc	0.10%	$693K	0.00%	Not reported
Mindset Wealth Management, LLC	0.10%	$671K	0.13%	Add 18.66%
Alliancebernstein L.P.	0.09%	$707K	0.00%	Not reported
American Financial Group Inc	0.09%	$610K	0.22%	Not reported
State of Wisconsin Investment Board	0.08%	$574K	0.00%	Not reported
Vanguard Global Advisers, LLC	0.08%	$533K	0.00%	Not reported

50 of 160 holders

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