Omeros (OMER) Institutional Ownership $8.92 +0.40 (+4.69%) Closing price 04:00 PM EasternExtended Trading$8.73 -0.19 (-2.13%) As of 04:24 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Omeros (NASDAQ:OMER)CurrentInstitutional OwnershipPercentage48.79%Number ofInstitutional Buyers(last 12 months)50TotalInstitutional Inflows(last 12 months)$14.69MNumber ofInstitutional Sellers(last 12 months)24TotalInstitutional Outflows(last 12 months)$6.46M Get OMER Insider Trade Alerts Want to know when executives and insiders are buying or selling Omeros stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data OMER Institutional Buying and Selling by Quarter Remove Ads Omeros Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails2/17/2025 Squarepoint Ops LLC32,009$316K0.0%-32.4%0.055% 2/17/2025 Two Sigma Advisers LP38,800$383K0.0%-15.7%0.067% 2/17/2025 Two Sigma Investments LP162,991$1.61M0.0%+8.8%0.281% 2/17/2025 ProShare Advisors LLC18,496$183K0.0%+75.0%0.032% 2/17/2025 Nomura Holdings Inc.747,281$7.38M0.0%+136.2%1.290% 2/17/2025 Nuveen Asset Management LLC102,921$1.02M0.0%-8.4%0.178% 2/17/2025 Millennium Management LLC85,671$846K0.0%+46.2%0.148% 2/17/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.31,831$314K0.0%+3.6%0.055% 2/17/2025 Jacobs Levy Equity Management Inc.104,538$1.03M0.0%N/A0.180% 2/17/2025 Deutsche Bank AG40,046$396K0.0%+38.2%0.069% Get the Latest News and Ratings for OMER and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Omeros and its competitors with MarketBeat's FREE daily newsletter. 2/17/2025 Bridgeway Capital Management LLC155,100$1.53M0.0%-3.8%0.268% 2/17/2025 BNP Paribas Financial Markets7,452$74K0.0%-39.8%0.013% 2/17/2025 Ameriprise Financial Inc.120,493$1.19M0.0%+2.0%0.208% 2/17/2025 Ancora Advisors LLC85,800$848K0.0%+1,036.4%0.148% 2/14/2025 Comerica Bank35,000$346K0.0%+16.7%0.060% 2/14/2025 The Manufacturers Life Insurance Company 20,479$202K0.0%-5.4%0.035% 2/14/2025 Susquehanna Fundamental Investments LLC150,557$1.49M0.0%N/A0.260% 2/14/2025 Virtus ETF Advisers LLC8,373$83K0.0%N/A0.014% 2/14/2025 Voya Investment Management LLC17,233$170K0.0%-9.4%0.030% 2/14/2025 Price T Rowe Associates Inc. MD39,582$392K0.0%+12.5%0.068% 2/14/2025 Stifel Financial Corp1,581,205$15.62M0.0%-17.0%2.729% 2/14/2025 Tower Research Capital LLC TRC 4,467$44K0.0%+79.0%0.008% 2/13/2025 Marshall Wace LLP44,205$437K0.0%N/A0.076% 2/13/2025 XTX Topco Ltd20,846$206K0.0%N/A0.036% 2/13/2025 Barclays PLC103,726$1.03M0.0%+9.6%0.179% 2/13/2025 Raymond James Financial Inc.12,549$124K0.0%N/A0.022% 2/13/2025 Invesco Ltd.32,348$320K0.0%-6.0%0.056% 2/13/2025 Cerity Partners LLC28,989$286K0.0%+9.9%0.050% 2/12/2025 ExodusPoint Capital Management LP15,495$153K0.0%-65.3%0.027% 2/12/2025 Franklin Resources Inc.13,186$130K0.0%N/A0.023% 2/12/2025 Alliancebernstein L.P.50,990$504K0.0%+153.4%0.088% 2/12/2025 JPMorgan Chase & Co.32,134$317K0.0%+31.3%0.055% 2/11/2025 Corebridge Financial Inc.27,808$275K0.0%-7.0%0.048% 2/11/2025 Vanguard Group Inc.3,141,657$31.04M0.0%-3.6%5.421% 2/11/2025 Quantbot Technologies LP4,671$46K0.0%N/A0.008% 2/11/2025 Mindset Wealth Management LLC63,000$622K0.2%+4.8%0.109% 2/10/2025 Corient Private Wealth LLC733,449$7.25M0.0%-6.7%1.266% 2/10/2025 Picton Mahoney Asset Management5,040$50K0.0%+692.5%0.009% 2/10/2025 Connor Clark & Lunn Investment Management Ltd.113,326$1.12M0.0%N/A0.196% 2/10/2025 Truvestments Capital LLC3,102$31K0.0%+116.5%0.005% Trump’s betrayal exposed (Ad)Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to move your money now.Millions of Americans are about to be wiped out, while others could make a fortune… click here to ma2/7/2025 AlphaQuest LLC28,894$285K0.0%N/A0.050% 2/6/2025 Raymond James Financial Inc.12,549$124K0.0%N/A0.022% 2/6/2025 Charles Schwab Investment Management Inc.475,526$4.70M0.0%-2.0%0.821% 2/5/2025 US Bancorp DE8,205$81K0.0%N/A0.014% 2/4/2025 Bank of New York Mellon Corp147,741$1.46M0.0%-3.2%0.255% 1/31/2025 New York State Common Retirement Fund17,313$171K0.0%+245.4%0.030% 1/30/2025 Blue Trust Inc.3,090$31K0.0%-38.2%0.005% 1/24/2025 China Universal Asset Management Co. Ltd.12,287$121K0.0%N/A0.021% 1/23/2025 Stordahl Capital Management Inc.40,000$395K0.1%N/A0.069% 1/21/2025 Brighton Jones LLC27,589$273K0.0%-18.0%0.048% 1/17/2025 Seros Financial LLC16,115$159K0.1%N/A0.028% 1/17/2025 SG Americas Securities LLC24,361$241K0.0%+21.2%0.042% 11/19/2024 Barclays PLC94,640$376K0.0%+121.3%0.163% 11/16/2024 Geode Capital Management LLC1,339,251$5.32M0.0%+0.5%2.311% 11/15/2024 Barclays PLC94,640$376K0.0%+121.3%0.163% 11/15/2024 MML Investors Services LLC18,600$74K0.0%+19.2%0.032% 11/15/2024 Jane Street Group LLC58,277$231K0.0%+15.9%0.101% 11/15/2024 Wellington Management Group LLP76,945$305K0.0%N/A0.133% 11/15/2024 State Street Corp1,226,053$4.87M0.0%+0.3%2.116% 11/15/2024 Stifel Financial Corp1,904,207$7.56M0.0%+0.1%3.286% 11/15/2024 HighTower Advisors LLC59,339$235K0.0%+7.2%0.102% 11/13/2024 Townsquare Capital LLC12,383$49K0.0%-34.3%0.021% 11/13/2024 BNP Paribas Financial Markets12,388$49K0.0%+130.6%0.021% 11/12/2024 Charles Schwab Investment Management Inc.485,035$1.93M0.0%+4.0%0.837% 11/6/2024 Oppenheimer & Co. Inc.18,602$74K0.0%-70.2%0.032% 10/16/2024 SPC Financial Inc.19,400$77K0.0%N/A0.033% 10/3/2024 SG Americas Securities LLC20,104$80K0.0%N/A0.035% 8/19/2024 B. Riley Wealth Advisors Inc.11,305$46K0.0%-26.5%0.020% 8/15/2024 The Manufacturers Life Insurance Company22,433$91K0.0%-10.8%0.039% 8/15/2024 AQR Capital Management LLC25,800$105K0.0%N/A0.045% 8/12/2024 Hsbc Holdings PLC10,427$41K0.0%-29.2%0.018% 8/1/2024 Rhumbline Advisers111,778$454K0.0%+6.1%0.193% 7/26/2024 Bank of New York Mellon Corp218,580$887K0.0%+16.6%0.377% 7/25/2024 Cypress Capital Group35,000$142K0.0%+40.0%0.060% 5/20/2024 Virtu Financial LLC10,091$35K0.0%-65.3%0.017% 5/17/2024 Comerica Bank30,000$104K0.0%+20.0%0.052% 5/10/2024 Vanguard Group Inc.3,250,284$11.21M0.0%+2.6%5.610% 5/7/2024 Susquehanna Fundamental Investments LLC155,957$538K0.0%N/A0.269% 5/7/2024 Oppenheimer & Co. Inc.24,503$85K0.0%N/A0.042% 5/7/2024 SG Americas Securities LLC12,315$42K0.0%-59.5%0.021% 5/1/2024 BNP Paribas Financial Markets30,102$104K0.0%+75.5%0.052% 3/27/2024 Nomura Holdings Inc.383,144$1.25M0.0%-14.0%0.609% 2/13/2024 Tower Research Capital LLC TRC 8,069$26K0.0%+199.9%0.013% 2/12/2024 Stifel Financial Corp1,890,674$6.18M0.0%-6.8%3.007% 2/9/2024 Hohimer Wealth Management LLC22,530$74K0.0%-57.1%0.036% 2/9/2024 Corient Private Wealth LLC663,663$2.17M0.0%-3.4%1.056% 2/9/2024 Coldstream Capital Management Inc.28,130$92K0.0%+42.1%0.045% 2/6/2024 Empirical Financial Services LLC d.b.a. Empirical Wealth Management30,000$98K0.0%+200.0%0.048% 2/5/2024 Brighton Jones LLC33,516$110K0.0%-29.5%0.053% 1/26/2024 Cerity Partners LLC21,850$71K0.0%N/A0.035% Trump’s betrayal exposed (Ad)Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to move your money now.Millions of Americans are about to be wiped out, while others could make a fortune… click here to ma1/24/2024 Rocky Mountain Advisers LLC26,800$88K0.0%-20.0%0.043% 1/16/2024Raymond James & Associates10,925$36K0.0%-75.4%0.017% 1/12/2024 SG Americas Securities LLC30,438$100K0.0%+59.3%0.048% 11/14/2023 Ancora Advisors LLC210,023$613K0.0%+23.1%0.334% 11/14/2023 Nomura Holdings Inc.445,482$1.30M0.0%-28.3%0.709% 11/13/2023 Stifel Financial Corp2,027,917$5.92M0.0%-1.4%3.226% 11/7/2023 Barclays PLC45,629$134K0.0%+51.2%0.073% 11/1/2023Jacob Asset Management of New York LLC55,168$161K0.2%-31.2%0.088% 10/13/2023 SG Americas Securities LLC19,105$56K0.0%N/A0.030% 9/21/2023 Barclays PLC30,173$163K0.0%-62.5%0.048% (Data available from 1/1/2016 forward)Remove Ads OMER Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of OMER shares? During the previous two years, 79 institutional investors and hedge funds held shares of Omeros. The most heavily invested institutionals were Vanguard Group Inc. ($31.04M), Stifel Financial Corp ($15.62M), Nomura Holdings Inc. ($7.38M), Corient Private Wealth LLC ($7.25M), Geode Capital Management LLC ($5.32M), State Street Corp ($4.87M), and Charles Schwab Investment Management Inc. ($4.70M).Learn more on OMER's institutional investors. What percentage of Omeros stock is owned by institutional investors? 48.79% of Omeros stock is owned by institutional investors. Learn more on OMER's institutional investor holdings. Which institutional investors have been buying Omeros stock? Of the 58 institutional investors that purchased Omeros stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Bank of Montreal Can ($563.30K), Nomura Holdings Inc. ($430.93K), Susquehanna Fundamental Investments LLC ($306.51K), Barclays PLC ($178.64K), Ancora Advisors LLC ($117.73K), Connor Clark & Lunn Investment Management Ltd. ($113.33K), and Jacobs Levy Equity Management Inc. ($104.54K). How much institutional buying is happening at Omeros? Institutional investors have bought a total of 2,777,869 shares in the last 24 months. This purchase volume represents approximately $19.22M in transactions. Which Omeros major shareholders have been selling company stock? Of the 32 institutional investors that sold Omeros stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Stifel Financial Corp ($489.16K), Nomura Holdings Inc. ($238.02K), Raymond James & Associates ($132.99K), Vanguard Group Inc. ($117.94K), Corient Private Wealth LLC ($76.25K), Barclays PLC ($50.23K), and Oppenheimer & Co. Inc. ($43.90K). How much institutional selling is happening at Omeros? Institutional investors have sold a total of 1,419,611 shares in the last 24 months. This volume of shares sold represents approximately $8.88M in transactions. Related Companies SUPN Major Shareholders PCRX Major Shareholders NKTR Major Shareholders CPIX Major Shareholders ASMB Major Shareholders LLY Major Shareholders JNJ Major Shareholders ABBV Major Shareholders MRK Major Shareholders PFE Major Shareholders This page (NASDAQ:OMER) was last updated on 3/27/2025 by MarketBeat.com Staff From Our PartnersA market crash is coming—here’s whenThe stock market cycle I've used to identify the most likely day of the next market crash is the exact same in...Chaikin Analytics | SponsoredYour Wealth is Under AttackPlease don't wait—this is your moment to take action. 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