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Omeros Corp

OMER
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001285819

In the last 90 days, Omeros Corp insiders filed 0 open-market purchases and 6 sales; 171 institutions reported holding it in 13F filings for Q2 2026, worth $343.0M in total; no superinvestor holds it.

13F holders, Q4 2023

Institutional positions in Omeros Corp as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
97
−2 vs. Q3 2023
Shares held
24.9M
−1.97M (−7.3%) vs. Q3 2023
Total value
$81.7M
+$2.94M (+3.7%) vs. Q3 2023
New holders
12
26 more added
Sold out
14
33 more reduced

1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting OMER on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2023: 97 institutions
Q1 2021: 152 institutionsQ2 2021: 152 institutionsQ3 2021: 142 institutionsQ4 2021: 139 institutionsQ1 2022: 129 institutionsQ2 2022: 102 institutionsQ3 2022: 94 institutionsQ4 2022: 98 institutionsQ1 2023: 91 institutionsQ2 2023: 103 institutionsQ3 2023: 100 institutionsQ4 2023: 97 institutionsQ1 2024: 99 institutionsQ2 2024: 104 institutionsQ3 2024: 108 institutionsQ4 2024: 128 institutionsQ1 2025: 137 institutionsQ2 2025: 128 institutionsQ3 2025: 133 institutionsQ4 2025: 151 institutionsQ1 2026: 162 institutionsQ2 2026: 171 institutions
Value heldQ4 2023: $81.7M
Q1 2021: $618.6MQ2 2021: $478.4MQ3 2021: $417.7MQ4 2021: $202.2MQ1 2022: $173.2MQ2 2022: $66.0MQ3 2022: $64.7MQ4 2022: $44.4MQ1 2023: $94.9MQ2 2023: $142.8MQ3 2023: $78.9MQ4 2023: $81.7MQ1 2024: $87.8MQ2 2024: $101.4MQ3 2024: $99.3MQ4 2024: $262.3MQ1 2025: $226.7MQ2 2025: $87.3MQ3 2025: $134.7MQ4 2025: $570.3MQ1 2026: $326.2MQ2 2026: $343.0M
Institutions holding OMER and their total value by quarter
QuarterHoldersValue
Q2 2026171$343.0M
Q1 2026162$326.2M
Q4 2025151$570.3M
Q3 2025133$134.7M
Q2 2025128$87.3M
Q1 2025137$226.7M
Q4 2024128$262.3M
Q3 2024108$99.3M
Q2 2024104$101.4M
Q1 202499$87.8M
Q4 202397$81.7M
Q3 2023100$78.9M
Q2 2023103$142.8M
Q1 202391$94.9M
Q4 202298$44.4M
Q3 202294$64.7M
Q2 2022102$66.0M
Q1 2022129$173.2M
Q4 2021139$202.2M
Q3 2021142$417.7M
Q2 2021152$478.4M
Q1 2021152$618.6M

Institutions, Q4 2023

Shares, value and share of portfolio for each institution holding Omeros Corp; share changes are against Q3 2023.

Institutions holding OMER in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Ingalls & Snyder LLC4,546,762$14.9M0.67%−96,824−2.1%Reduced
BlackRock Inc.4,279,836$14.0M0.00%+254,484+6.3%Added
Vanguard Group Inc3,168,936$10.4M0.00%+26,085+0.8%Added
Stifel Financial Corp1,890,674$6.18M0.01%−137,243−6.8%Reduced
D. E. Shaw & Co., Inc.1,492,303$4.88M0.01%+130,867+9.6%Added
Geode Capital Management, LLC1,338,713$4.38M0.00%+55,967+4.4%Added
State Street Corp1,200,928$3.93M0.00%+38,541+3.3%Added
CI Private Wealth, LLC663,663$2.17M0.00%−23,246−3.4%Reduced
Bank of Montreal563,096$1.98M0.00%−2010.0%Reduced
Northern Trust Corp559,052$1.83M0.00%+13,009+2.4%Added
Royal Bank of Canada508,940$1.66M0.00%−1,546,959−75.2%Reduced
UBS Group AG494,546$1.62M0.00%−96,096−16.3%Reduced
Charles Schwab Investment Management Inc469,174$1.53M0.00%−21,794−4.4%Reduced
Nomura Holdings Inc383,144$1.25M0.01%−62,338−14.0%Reduced
Morgan Stanley282,405$923.5K0.00%+44,427+18.7%Added
Group One Trading, L.P.230,853$754.9K0.02%+9,154+4.1%Added
Bank of New York Mellon Corp202,314$661.6K0.00%−408−0.2%Reduced
Bridgeway Capital Management, LLC186,300$609.2K0.01%+77,100+70.6%Added
First Trust Advisors LP172,755$564.9K0.00%+4,130+2.4%Added
Bank of America Corp170,211$556.6K0.00%+2,115+1.3%Added
Ancora Advisors, LLC163,023$533.1K0.01%−47,000−22.4%Reduced
Barclays PLC118,467$387.4K0.00%+72,838+159.6%Added
Ameriprise Financial Inc116,716$381.7K0.00%00.0%Unchanged
Susquehanna International Group, LLP113,704$371.8K0.00%−62,023−35.3%Reduced
Rhumbline Advisers109,083$356.7K0.00%+18,894+20.9%Added
Badgley Phelps Wealth Managers, LLC78,556$256.9K0.01%+1,030+1.3%Added
Jane Street Group, LLC65,975$215.7K0.00%+10,412+18.7%Added
American Financial Group Inc64,113$210.0K0.08%00.0%Unchanged
CAPROCK Group, Inc.60,812$198.9K0.01%−70.0%Reduced
Sheaff Brock Investment Advisors, LLC60,125$196.6K0.02%00.0%Unchanged
HighTower Advisors, LLC56,339$184.0K0.00%−13,000−18.7%Reduced
Cypress Capital Group55,000$179.8K0.02%00.0%Unchanged
Citadel Advisors LLC52,713$172.4K0.00%+18,871+55.8%Added
Two Sigma Investments, LP47,600$155.7K0.00%−105,864−69.0%Reduced
Invesco Ltd.42,390$138.6K0.00%−24,155−36.3%Reduced
Goldman Sachs Group Inc41,857$136.9K0.00%−64,645−60.7%Reduced
JPMorgan Chase & Co41,315$135.1K0.00%−11,763−22.2%Reduced
Squarepoint Ops LLC37,512$122.7K0.00%−24,351−39.4%Reduced
Brighton Jones LLC33,516$109.6K0.00%−14,000−29.5%Reduced
Price T Rowe Associates Inc32,933$108.0K0.00%+1,705+5.5%Added
MetLife Investment Management32,266$105.5K0.00%00.0%Unchanged
SG Americas Securities, LLC30,438$100.0K0.00%+11,333+59.3%Added
American International Group, Inc.30,260$99.0K0.00%−122−0.4%Reduced
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management30,000$98.1K0.00%+20,000+200.0%Added
Deutsche Bank AG29,460$96.3K0.00%00.0%Unchanged
Virtu Financial LLC29,074$95.0K0.01%+29,074New
Coldstream Capital Management Inc28,130$92.0K0.00%+8,335+42.1%Added
Rocky Mountain Advisers, LLC26,800$87.6K0.03%−6,705−20.0%Reduced
Manufacturers Life Insurance Company, The25,138$82.2K0.00%00.0%Unchanged
Comerica Bank25,000$81.8K0.00%00.0%Unchanged
Voya Investment Management LLC24,345$79.6K0.00%00.0%Unchanged
New York State Common Retirement Fund24,320$79.5K0.00%−137−0.6%Reduced
Hohimer Wealth Management, LLC22,530$73.7K0.02%−30,000−57.1%Reduced
Cerity Partners LLC21,850$71.5K0.00%+21,850New
Wells Fargo & Company21,154$69.2K0.00%+3,657+20.9%Added
Two Sigma Advisers, LP21,100$69.0K0.00%−28,800−57.7%Reduced
State Board of Administration of Florida Retirement System17,430$57.0K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA17,151$56.1K0.00%−35,137−67.2%Reduced
Acadian Asset Management LLC17,370$56.0K0.00%+17,370New
XTX Topco Ltd16,657$54.5K0.01%+16,657New
Engineers Gate Manager LP15,930$52.1K0.00%+15,930New
National Asset Management, Inc.14,380$47.0K0.00%−1,000−6.5%Reduced
Cambridge Investment Research Advisors, Inc.14,143$46.0K0.00%−33,230−70.1%Reduced
Gilbert & Cook, Inc.13,750$45.0K0.01%+13,750New
Apella Capital, LLC14,288$43.3K0.00%00.0%Unchanged
Alliancebernstein L.P.11,700$38.3K0.00%00.0%Unchanged
Sonora Investment Management Group, LLC11,545$37.8K0.00%00.0%Unchanged
Raymond James & Associates10,925$35.7K0.00%−33,493−75.4%Reduced
Millennium Management LLC10,620$34.7K0.00%+10,620New
Verition Fund Management LLC10,427$34.1K0.00%−11,773−53.0%Reduced
DeepCurrents Investment Group LLC10,427$34.1K0.00%+10,427New
ProShare Advisors LLC10,058$32.9K0.00%−1,960−16.3%Reduced
California State Teachers Retirement System10,020$32.8K0.00%−3,413−25.4%Reduced
FMR LLC9,332$30.5K0.00%+5,466+141.4%Added
Empire Life Investments Inc.8,878$29.0K0.00%+173+2.0%Added
Citigroup Inc8,771$28.7K0.00%+7,870+873.5%Added
Tower Research Capital LLC (TRC)8,069$26.4K0.00%+5,378+199.9%Added
Bear Mountain Capital, Inc.6,960$24.2K0.01%+6,960New
Amalgamated Bank6,660$22.0K0.00%−611−8.4%Reduced
Ronald Blue Trust, Inc.6,813$20.0K0.00%00.0%Unchanged
Farther Finance Advisors, LLC6,000$19.6K0.00%00.0%Unchanged
Legal & General Group Plc5,710$18.6K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.5,027$16.4K0.00%00.0%Unchanged
Tradition Wealth Management, LLC4,338$14.0K0.00%00.0%Unchanged
Creative Financial Designs Inc3,550$11.6K0.00%+500+16.4%Added
Metropolitan Life Insurance Co3,344$10.9K0.00%00.0%Unchanged
Private Ocean, LLC1,250$4.09K0.00%+1,250New
Fifth Third Bancorp1,000$3.27K0.00%00.0%Unchanged
Headlands Technologies LLC953$3.12K0.00%+953New
Capital Analysts, LLC1,000$3.00K0.00%00.0%Unchanged
Bellevue Asset Management, LLC511$1.67K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.435$1.42K0.00%−8,598−95.2%Reduced
Federation des caisses Desjardins du Quebec300$9810.00%00.0%Unchanged
Spotlight Asset Group, Inc.330$9640.00%00.0%Unchanged
Larson Financial Group LLC150$4910.00%00.0%Unchanged
Truvestments Capital LLC146$4770.00%00.0%Unchanged
The PNC Financial Services Group, Inc.13$430.00%+13New
Nuveen Asset Management, LLC0$00.00%−181,632−100.0%Sold out
Renaissance Technologies LLC0$00.00%−62,800−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−40,059−100.0%Sold out