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Disclosery

OMER OMEROS CORP

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COM (common), issuer CIK 1285819

146 managers (151 13F filers) reported a position in OMER shares at 2025-12-31, 33,230,097 shares in all. 31 filers opened a position and 13 filers sold out during the quarter.

Managers
146
13F filers
151
New
31
Added
61
Reduced
35
Sold out
13
Shares held by filers
33,230,097

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.5,062,438$86.9M<0.01%+610,28213F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC4,013,315$68.9M<0.01%+666,35713F-HRTimelineGroup
INGALLS & SNYDER LLC3,448,699$59.2M2.18%-657,89913F-HRTimeline
UBS Group AGgroup of 2 filers holding2,223,213$38.2M+1,514,124Timeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP1,809,766$31.1M0.03%-2,50913F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,631,350$28M<0.01%+95,97913F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,573,526$27M<0.01%+333,79813F-HRTimelineGroup
KOTLER KEVIN905,635$15.6M11.49%13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding834,654$14.3M+552,987Timeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.754,999$13M0.01%-250,23613F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP688,025$11.8M0.02%+79,26313F-HR/ATimelineGroup
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD655,021$11.2M0.03%+611,34013F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/601,643$10.3M<0.01%+38,54813F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding600,857$10.3M-910,657Timeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co593,222$10.2M<0.01%+39,75513F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP526,732$9.05M<0.01%-8,96313F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA498,399$8.56M<0.01%-45,27713F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC463,622$7.96M0.01%+182,53513F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC441,811$7.59M0.01%+39,99713F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY386,152$6.63M<0.01%-1,603,58213F-HR/ATimelineGroup
Badgley Phelps Wealth Managers, LLC263,556$4.53M0.08%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC240,352$4.13M<0.01%-152,87613F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC228,000$3.92M0.05%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC227,294$3.9M<0.01%-108,79313F-HR/ATimelineGroup
Informed Momentum Co LLC207,480$3.56M0.4%new13F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…202,617$3.48M<0.01%+8,17013F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding179,609$3.08M+151,013Timeline
Itau Unibanco Holding S.A.in group Itau Unibanco Holding S.A.180,000$3.05M0.07%new13F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp165,782$2.85M<0.01%+3,43713F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN165,280$2.84M<0.01%+31,17613F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.154,782$2.66M<0.01%+32,70713F-HRTimelineGroup
Nuveen, LLCin group TIAA153,187$2.63M<0.01%+65,56913F-HRTimelineGroup
Clutterbuck Capital Management LLC150,000$2.58M2.2%13F-HRTimeline
GROUP ONE TRADING LLC133,269$2.29M0.07%+34,97213F-HRTimeline
SIMPLEX TRADING, LLC123,979$2.13M0.06%+101,75913F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC120,490$2.07M<0.01%-11,45813F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC117,004$2.01M<0.01%+46813F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/114,808$1.97M<0.01%-160,61013F-HRTimelineGroup
HighTower Advisors, LLC104,059$1.79M<0.01%+8,87513F-HRTimeline
RHUMBLINE ADVISERS100,105$1.72M<0.01%-5,76813F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP96,948$1.67M<0.01%new13F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/95,745$1.64M<0.01%+6,21713F-HRTimeline
AlphaQuest LLC82,597$1.42M0.08%+82,59613F-HRTimeline
Cambridge Investment Research Advisors,…81,643$1.4M<0.01%+63,42413F-HRTimeline
MML INVESTORS SERVICES, LLC77,875$1.34M<0.01%+18,70013F-HRTimeline
ALLIANCEBERNSTEIN L.P.73,490$1.26M<0.01%+5,90013F-HRTimeline
Polar Asset Management Partners Inc.68,800$1.18M0.02%-1,429,78613F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…64,957$1.12M0.02%-64,43613F-HRTimelineGroup
AMERICAN FINANCIAL GROUP INCin group AMERICAN FINANCIAL GROUP INC64,113$1.1M0.4%013F-HRTimelineGroup
Verition Fund Management LLC63,493$1.09M0.01%new13F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC59,250$1.02M0.02%+56,25013F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC56,715$974K0.02%013F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC53,605$921K0.01%+27,77513F-HRTimeline
MINDSET WEALTH MANAGEMENT, LLC52,000$893K0.23%-8,00013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\48,694$837K<0.01%+7,89113F-HRTimelineGroup
Cypress Capital Groupin group Cypress Capital Group42,000$721K0.08%013F-HRTimelineGroup
COMERICA BANK38,000$653K<0.01%+3,00013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO37,191$639K<0.01%-378,96213F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…36,200$622K<0.01%+15,69613F-HRTimelineGroup
NFSG Corp34,310$589K0.09%-100,20013F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding34,030$584K+1,213Timeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO31,766$546K<0.01%+18,65213F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth31,034$533K<0.01%new13F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC30,450$523K<0.01%+1,75013F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC29,967$515K<0.01%+4,32413F-HRTimeline
AXQ CAPITAL, LP29,151$501K0.11%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC27,489$472K<0.01%+21,97213F-HRTimelineGroup
Man Group plcin group Man Group plc27,099$465K<0.01%new13F-HRTimelineGroup
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…26,212$450K0.12%new13F-HRTimelineGroup
Quantinno Capital Management LP25,074$431K<0.01%+6,86613F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC25,000$429K0.03%new13F-HR/ATimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…31,728$429K<0.01%+2,63113F-HRTimeline
FARALLON CAPITAL MANAGEMENT, L.L.C.23,000$395K<0.01%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Stordahl Capital Management, Inc.22,860$393K0.08%013F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC22,838$392K<0.01%+1,53213F-HRTimelineGroup
HARBOUR INVESTMENTS, INC.21,835$375K0.01%+8,36613F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD21,700$373K<0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND20,713$356K<0.01%+9,30013F-HRTimeline
Engineers Gate Manager LP20,082$345K<0.01%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …19,850$341K<0.01%-4813F-HRTimelineGroup
SG Americas Securities, LLC18,825$323K<0.01%-26,49913F-HRTimeline
FMR LLCin group FMR LLC18,068$310K<0.01%+4,87813F-HRTimelineGroup
AlphaCore Capital LLC17,647$303K0.01%new13F-HRTimeline
Breakwater Investment Management17,048$293K0.11%013F-HRTimeline
Creative Planningin group Creative Planning16,916$291K<0.01%new13F-HRTimelineGroup
China Universal Asset Management Co., L…16,553$284K0.02%-5,37613F-HRTimeline
Police & Firemen's Retirement System of…16,360$281K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS16,351$281K<0.01%-71,76613F-HRTimelineGroup
ProShare Advisors LLC15,171$261K<0.01%+1,63713F-HRTimeline
PROFUND ADVISORS LLC14,330$246K0.01%new13F-HRTimeline
Apella Capital, LLC14,288$245K<0.01%013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…14,014$241K<0.01%+3,31913F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC30,920$233K<0.01%new13F-HRTimeline
Graham Capital Management, L.P.13,222$227K0.01%-21,23713F-HRTimeline
Avantax Planning Partners, Inc.13,200$227K0.01%+3,10013F-HRTimeline
Schonfeld Strategic Advisors LLC12,667$218K<0.01%new13F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC12,242$210K<0.01%new13F-HRTimelineGroup
Rafferty Asset Management, LLC12,226$210K<0.01%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC11,405$196K<0.01%+21613F-HRTimelineGroup
B. Riley Wealth Advisors, Inc.11,369$195K0.01%+60913F-HRTimeline
Sowell Financial Services LLC10,650$183K0.01%+20013F-HRTimeline
Empirical Financial Services, LLC d.b.a…10,500$180K<0.01%-30,00013F-HRTimeline
Abel Hall, LLC10,240$176K0.04%new13F-HRTimeline
Caitong International Asset Management …9,276$159K0.04%new13F-HR/ATimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.7,547$130K<0.01%+1,93813F-HRTimelineGroup
Quantbot Technologies LP7,220$124K<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC7,106$122K<0.01%+1,00413F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc6,971$120K<0.01%-11413F-HRTimelineGroup
Vontobel Holding Ltd.in group Vontobel Holding Ltd.5,450$93.6K<0.01%new13F-HRTimelineGroup
Arax Advisory Partners5,255$90.3K<0.01%+1,89413F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…5,027$86.3K<0.01%013F-HRTimelineGroup
INTERNATIONAL ASSETS INVESTMENT MANAGEM…5,000$85.9K0.01%-10,55013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…4,055$69.6K<0.01%-113F-HRTimeline
Parallel Advisors, LLC3,909$67.1K<0.01%+75013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.3,747$64.4K<0.01%+3,20913F-HRTimelineGroup
AMALGAMATED BANK2,069$36K<0.01%+1713F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,916$32.9K<0.01%-1,51213F-HRTimelineGroup
Strategic Investment Solutions, Inc. /IL1,827$31.4K0.01%+213F-HRTimeline
Truvestments Capital LLC1,682$28.9K0.01%013F-HRTimeline
State of Wyoming1,433$24.6K<0.01%new13F-HRTimeline
GF FUND MANAGEMENT CO. LTD.1,392$23.9K<0.01%-7213F-HRTimeline
CWM, LLCin group CWM, LLC1,232$21K<0.01%-2813F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…1,000$17.2K<0.01%013F-HRTimelineGroup
Plante Moran Financial Advisors, LLC1,000$17.2K<0.01%013F-HRTimeline
NewEdge Advisors, LLC1,000$17.2K<0.01%new13F-HRTimeline
Capital Analysts, LLCin group Capital Analysts, LLC1,000$17K<0.01%013F-HR/ATimelineGroup
Sterling Capital Management LLC901$15.5K<0.01%+25613F-HRTimeline
NISA INVESTMENT ADVISORS, LLC804$13.8K<0.01%-87013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…765$13.1K<0.01%-23513F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…500$8.59K<0.01%013F-HR/ATimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…377$6.47K<0.01%-29713F-HRTimelineGroup
MassMutual Private Wealth & Trust, FSB360$6.18K<0.01%+23613F-HRTimeline
Pandora Wealth, Inc.330$5.67K<0.01%013F-HRTimeline
Federation des caisses Desjardins du Qu…300$5.15K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.208$3.57K<0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…195$3.35K<0.01%new13F-HR/ATimelineGroup
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.191$3K<0.01%013F-HRTimelineGroup
Larson Financial Group LLC151$2.59K<0.01%+113F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…115$1.98K<0.01%013F-HRTimelineGroup
GAMMA Investing LLC107$1.84K<0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC60$1.03K<0.01%new13F-HRTimeline
SRH ADVISORS, LLC50$859<0.01%013F-HRTimeline
Allworth Financial LP44$756<0.01%-1313F-HRTimeline
Parkside Financial Bank & Trust40$687<0.01%new13F-HRTimeline
IFP Advisors, Inc26$447<0.01%013F-HRTimeline
Essential Partners LLC11$189<0.01%013F-HRTimeline