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Disclosery

OMER OMEROS CORP

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COM (common), issuer CIK 1285819

129 managers (133 13F filers) reported a position in OMER shares at 2025-09-30, 32,850,617 shares in all. 14 filers opened a position and 9 filers sold out during the quarter.

Managers
129
13F filers
133
New
14
Added
59
Reduced
30
Sold out
9
Shares held by filers
32,850,617

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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.4,452,156$18.3M<0.01%+401,18313F-HRTimelineGroup
INGALLS & SNYDER LLC4,106,598$16.8M0.55%+123,68513F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC3,346,958$13.7M<0.01%+63,38113F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY1,989,734$8.16M<0.01%+634,17513F-HR/ATimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP1,812,275$7.43M0.01%+289,38513F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,535,371$6.3M<0.01%+165,50013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding1,511,514$6.2M+418,495Timeline
Polar Asset Management Partners Inc.1,498,586$6.14M0.12%new13F-HR/ATimeline
STATE STREET CORPin group STATE STREET CORP1,239,728$5.08M<0.01%+39,60213F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.1,005,235$4.12M<0.01%-642,19113F-HRTimelineGroup
UBS Group AGin group UBS Group AG709,089$2.91M<0.01%-159,41113F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP608,762$2.5M<0.01%+78,14813F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/563,095$2.31M<0.01%-8,00013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co553,467$2.27M<0.01%+73,78813F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA543,676$2.23M<0.01%+39,60813F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP535,695$2.2M<0.01%+50,92713F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP464,178$1.9M<0.01%-277,19813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO416,153$1.71M<0.01%+384,16813F-HR/ATimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC401,814$1.65M<0.01%+132,39313F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC393,228$1.61M<0.01%+235,51813F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC344,500$1.41M<0.01%-38,20013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC336,087$1.38M<0.01%+82,12313F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding281,667$1.15M+23,483Timeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC281,087$1.15M<0.01%+195,70513F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/275,418$1.13M<0.01%+24,45913F-HR/ATimelineGroup
Badgley Phelps Wealth Managers, LLC263,556$1.08M0.02%+142,11813F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…194,447$797K<0.01%+31,03413F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp162,345$666K<0.01%+14,46313F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC155,496$638K<0.01%+67,02113F-HRTimelineGroup
NFSG Corp134,510$551K0.08%+41,09013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN134,104$550K<0.01%+11,71713F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC131,948$541K<0.01%+7,11713F-HR/ATimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…129,393$531K0.01%+24,09413F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.122,075$501K<0.01%+5,38713F-HRTimelineGroup
DeepCurrents Investment Group LLC120,918$496K0.02%-407,21113F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC116,536$478K<0.01%013F-HRTimelineGroup
RHUMBLINE ADVISERS105,873$434K<0.01%+7,04813F-HRTimeline
GROUP ONE TRADING LLC98,297$403K0.01%-20,69213F-HRTimeline
HighTower Advisors, LLC95,184$390K<0.01%+26,00013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/89,528$368K<0.01%+12,73713F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS88,117$361K<0.01%+62,84513F-HRTimelineGroup
Nuveen, LLCin group TIAA87,618$359K<0.01%013F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.67,590$277K<0.01%013F-HRTimeline
AMERICAN FINANCIAL GROUP INCin group AMERICAN FINANCIAL GROUP INC64,113$263K0.1%013F-HRTimelineGroup
MINDSET WEALTH MANAGEMENT, LLC60,000$246K0.07%013F-HRTimeline
MML INVESTORS SERVICES, LLC59,175$243K<0.01%+9,60013F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC56,715$233K<0.01%+25,00013F-HRTimeline
Atom Investors LP53,266$218K0.02%+41,13313F-HRTimeline
SG Americas Securities, LLC45,324$186K<0.01%+22,62313F-HRTimeline
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD43,681$179K<0.01%-44,78813F-HRTimelineGroup
Cypress Capital Groupin group Cypress Capital Group42,000$172K0.02%013F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\40,803$167K<0.01%+5,70713F-HRTimelineGroup
Empirical Financial Services, LLC d.b.a…40,500$166K<0.01%013F-HRTimeline
Brooklyn Investment Group49,197$157K0.02%013F-HR/ATimeline
COMERICA BANK35,000$144K<0.01%013F-HRTimeline
Graham Capital Management, L.P.34,459$141K0.01%-66,09913F-HRTimeline
Apella Capital, LLC14,288$140K<0.01%013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD33,678$138K<0.01%new13F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding32,817$135K-1,277Timeline
BRIGHTON JONES LLC31,539$129K<0.01%+76213F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…29,097$129K<0.01%+2,94113F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC28,700$118K<0.01%+4913F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding28,596$117K+26,311Timeline
WOLVERINE TRADING, LLC25,971$109K<0.01%+8,48413F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC25,830$106K<0.01%-1,00013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC25,643$105K<0.01%-8,46513F-HRTimeline
Stordahl Capital Management, Inc.22,860$93.7K0.02%-9,79613F-HRTimeline
SIMPLEX TRADING, LLC22,220$91K<0.01%new13F-HRTimeline
China Universal Asset Management Co., L…21,929$89.9K0.01%+10,16113F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd21,533$88.2K<0.01%new13F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC21,306$87.4K<0.01%+7,44413F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…20,504$84.1K<0.01%-13,48313F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …19,898$81.6K<0.01%-66213F-HRTimelineGroup
Cambridge Investment Research Advisors,…18,219$75K<0.01%+2,80113F-HRTimeline
Quantinno Capital Management LP18,208$74.7K<0.01%new13F-HRTimeline
SPC Financial, Inc.17,400$71.3K0.01%013F-HRTimeline
Breakwater Investment Management17,048$69.9K0.03%013F-HRTimeline
Police & Firemen's Retirement System of…16,360$67.1K<0.01%+4,63813F-HRTimeline
ProShare Advisors LLC13,534$55.5K<0.01%-22613F-HRTimeline
HARBOUR INVESTMENTS, INC.13,469$55.2K<0.01%013F-HRTimeline
FMR LLCin group FMR LLC13,190$54.1K<0.01%+1,55013F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO13,114$53.8K<0.01%-30213F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND11,413$46.8K<0.01%013F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…15,550$46.2K<0.01%013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC11,189$45.9K<0.01%-4,72713F-HRTimelineGroup
B. Riley Wealth Advisors, Inc.10,760$44.1K<0.01%013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…10,695$43.8K<0.01%+5,67713F-HRTimelineGroup
Sowell Financial Services LLC10,450$42.8K<0.01%-30013F-HRTimeline
Avantax Planning Partners, Inc.10,100$41.4K<0.01%013F-HRTimeline
GSA CAPITAL PARTNERS LLP10,004$41K<0.01%-28,12813F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc7,085$29K<0.01%+98513F-HRTimelineGroup
Farther Finance Advisors, LLC6,102$25K<0.01%-1,39513F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.5,609$23.3K<0.01%+27713F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC5,517$22.6K<0.01%-17,17213F-HRTimelineGroup
Ameritas Investment Partners, Inc.group of 2 filers holding5,027$20.6K-31Timeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…4,056$16.6K<0.01%+313F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…3,428$14.1K<0.01%-9,98613F-HRTimelineGroup
Arax Advisory Partners3,361$13.8K<0.01%new13F-HRTimeline
Parallel Advisors, LLC3,159$13K<0.01%+1,15913F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC3,000$12.3K<0.01%-2,80013F-HRTimelineGroup
AMALGAMATED BANK2,052$8K<0.01%013F-HRTimeline
Strategic Investment Solutions, Inc. /IL1,825$7.48K<0.01%013F-HRTimeline
Truvestments Capital LLC1,682$6.9K<0.01%-1,42013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,674$6.86K<0.01%+8713F-HRTimeline
GF FUND MANAGEMENT CO. LTD.1,464$6K<0.01%-1913F-HRTimeline
MAI Capital Management1,369$5.61K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC1,260$5K<0.01%+65113F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…1,000$4.1K<0.01%013F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…1,000$4.1K<0.01%-35813F-HRTimeline
Plante Moran Financial Advisors, LLC1,000$4.1K<0.01%new13F-HRTimeline
Capital Analysts, LLCin group Capital Analysts, LLC1,000$4K<0.01%013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…674$2.76K<0.01%+2113F-HRTimelineGroup
Sterling Capital Management LLC645$2.65K<0.01%+35213F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.538$2.21K<0.01%new13F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…500$2.05K<0.01%new13F-HRTimelineGroup
Pandora Wealth, Inc.330$1.35K<0.01%013F-HRTimeline
Federation des caisses Desjardins du Qu…300$1.23K<0.01%013F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.191$1K<0.01%013F-HRTimelineGroup
SBI Securities Co., Ltd.208$853<0.01%013F-HRTimeline
Larson Financial Group LLC150$615<0.01%013F-HRTimeline
MassMutual Private Wealth & Trust, FSB124$508<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…115$472<0.01%-6813F-HRTimelineGroup
Allworth Financial LP57$234<0.01%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\50$205<0.01%-5013F-HRTimelineGroup
SRH ADVISORS, LLC50$205<0.01%013F-HRTimeline
Clearstead Advisors, LLC26$107<0.01%new13F-HRTimeline
IFP Advisors, Inc26$107<0.01%+2613F-HR/ATimeline
Essential Partners LLC11$45<0.01%new13F-HRTimeline
AlphaQuest LLC1$4<0.01%013F-HRTimeline