Ken Griffin Omeros Corp Transaction History

Citadel Advisors LLC

$618 Billion
Q3 2025

A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in Omeros Corp stock. As of the latest transaction made, Citadel Advisors LLC holds 82,400 shares of OMER stock, worth $610,584. This represents 0.0% of its overall portfolio holdings.

Number of Shares

82,400

Previous 157,710 47.75%

Holding current value

$610,584

Previous $473,000 28.75%

% of portfolio

0.0%

Previous 0.0%

29 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$3.06 - $4.48 $720,685 - $1.06 Million	235,518 Added 149.34%	393,228 $1.61 Million
Q2 2025 Aug 14, 2025	SELL	$3.0 - $8.01 $45,948 - $122,681	-15,316 Reduced 8.85%	157,710 $473,000
Q1 2025 May 15, 2025	BUY	$7.04 - $11.21 $705,415 - $1.12 Million	100,201 Added 137.59%	173,026 $1.42 Million
Q4 2024 Feb 14, 2025	BUY	$3.77 - $12.15 $85,628 - $275,962	22,713 Added 45.32%	72,825 $719,000
Q3 2024 Nov 14, 2024	SELL	$3.54 - $5.47 $40,586 - $62,713	-11,465 Reduced 18.62%	50,112 $198,000

Q2 2024 Aug 14, 2024	BUY	$3.04 - $4.23 $73,023 - $101,608	24,021 Added 63.96%	61,577 $250,000
Q1 2024 May 15, 2024	SELL	$2.88 - $4.89 $43,652 - $74,117	-15,157 Reduced 28.75%	37,556 $129,000
Q4 2023 Feb 14, 2024	BUY	$1.08 - $3.63 $20,380 - $68,501	18,871 Added 55.76%	52,713 $172,000
Q3 2023 Nov 14, 2023	BUY	$2.81 - $5.69 $67,375 - $136,429	23,977 Added 243.05%	33,842 $98,000
Q2 2023 Aug 14, 2023	SELL	$4.45 - $7.57 $569,546 - $968,869	-127,988 Reduced 92.84%	9,865 $53,000
Q1 2023 May 15, 2023	BUY	$2.48 - $5.22 $119,888 - $252,345	48,342 Added 54.01%	137,853 $641,000
Q4 2022 Feb 14, 2023	BUY	$1.75 - $3.96 $58,815 - $133,091	33,609 Added 60.12%	89,511 $202,000
Q3 2022 Nov 14, 2022	SELL	$3.09 - $7.46 $1.03 Million - $2.48 Million	-332,480 Reduced 85.61%	55,902 $176,000
Q2 2022 Aug 15, 2022	BUY	$1.92 - $6.28 $271,806 - $889,034	141,566 Added 57.36%	388,382 $1.07 Million
Q1 2022 May 16, 2022	BUY	$5.07 - $7.2 $1.02 Million - $1.45 Million	201,769 Added 447.91%	246,816 $1.48 Million
Q3 2021 Nov 15, 2021	SELL	$13.4 - $16.3 $157,570 - $191,671	-11,759 Reduced 20.7%	45,047 $621,000
Q2 2021 Aug 16, 2021	SELL	$14.81 - $19.13 $283,344 - $365,995	-19,132 Reduced 25.19%	56,806 $843,000
Q1 2021 May 17, 2021	SELL	$14.52 - $23.53 $719,872 - $1.17 Million	-49,578 Reduced 39.5%	75,938 $1.35 Million
Q4 2020 Feb 16, 2021	SELL	$10.14 - $15.19 $911,920 - $1.37 Million	-89,933 Reduced 41.74%	125,516 $1.79 Million
Q3 2020 Nov 16, 2020	BUY	$9.57 - $21.32 $497,123 - $1.11 Million	51,946 Added 31.77%	215,449 $2.18 Million
Q2 2020 Aug 14, 2020	BUY	$12.21 - $16.99 $978,973 - $1.36 Million	80,178 Added 96.22%	163,503 $2.41 Million
Q1 2020 May 15, 2020	BUY	$9.03 - $19.72 $418,937 - $914,889	46,394 Added 125.62%	83,325 $1.11 Million
Q3 2019 Nov 14, 2019	SELL	$14.55 - $20.56 $284,903 - $402,585	-19,581 Reduced 34.65%	36,931 $603,000
Q2 2019 Aug 14, 2019	SELL	$15.0 - $19.62 $4.56 Million - $5.96 Million	-303,755 Reduced 84.31%	56,512 $887,000
Q4 2018 Feb 14, 2019	SELL	$10.72 - $16.73 $1.66 Million - $2.59 Million	-155,012 Reduced 30.08%	360,267 $4.01 Million
Q3 2018 Nov 13, 2018	BUY	$17.73 - $26.69 $8.09 Million - $12.2 Million	456,540 Added 777.23%	515,279 $0
Q1 2018 May 11, 2018	BUY	$9.0 - $20.16 $247,995 - $555,508	27,555 Added 88.36%	58,739 $656,000
Q4 2017 Feb 09, 2018	SELL	$13.26 - $22.86 $459,034 - $791,367	-34,618 Reduced 52.61%	31,184 $606,000
Q3 2017 Nov 09, 2017	BUY	$19.76 - $24.9 $1.3 Million - $1.64 Million	65,802	65,802 $1.42 Million

Others Institutions Holding OMER

# of Institutions

154

Shares Held

33.1M

Call Options Held

2.2M

Put Options Held

2.72M

View Full List

About OMEROS CORP

Ticker OMER
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 62,730,000
Market Cap $465M
Description
Omeros Corporation, a commercial-stage biopharmaceutical company, discovers, develops, and commercializes small-molecule and protein therapeutics, and orphan indications targeting inflammation, complement-mediated diseases, cancers related to dysfunction of the immune system, and addictive and compulsive disorders. The company's clinical program...

More about OMER

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