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Omeros (OMER) Institutional Ownership

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$9.79 -0.49 (-4.77%)
Closing price 04:00 PM Eastern
Extended Trading
$9.82 +0.03 (+0.26%)
As of 07:22 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 Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Omeros (NASDAQ:OMER)

Current
Institutional Ownership
Percentage
48.79%
Number of
Institutional Buyers
(last 12 months)
72
Total
Institutional Inflows
(last 12 months)
$82.03M
Number of
Institutional Sellers
(last 12 months)
27
Total
Institutional Outflows
(last 12 months)
$11.95M
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OMER Institutional Buying and Selling by Quarter

Omeros Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
5/19/2026Bank of America Corp DE204,805$2.16M0.0%+57.8%0.283%
5/16/2026The Manufacturers Life Insurance Company 18,454$195K0.0%-7.0%0.025%
5/16/2026Quantinno Capital Management LP61,541$650K0.0%+145.4%0.085%
5/16/2026Polar Asset Management Partners Inc.200,000$2.11M0.0%-25.6%0.276%
5/14/2026Sei Investments Co.13,171$139K0.0%-58.5%0.018%
5/7/2026Dimensional Fund Advisors LP179,594$1.90M0.0%+85.2%0.249%
5/6/2026Assetmark Inc.3,600$38K0.0%N/A0.005%
5/5/2026NFSG Corp47,710$504K0.1%+39.1%0.066%
5/5/2026Avantax Planning Partners Inc.21,100$223K0.0%+59.8%0.029%
5/2/2026 International Assets Investment Management LLC5,800$61K0.0%+16.0%0.008%
5/1/2026Fifth Third Bancorp39,000$412K0.0%+3,800.0%0.054%
4/27/2026Leonteq Securities AG10,000$106K0.0%N/A0.014%
3/9/2026Corient Private Wealth LLC688,025$11.82M0.0%+13.0%0.970%
3/3/2026Caitong International Asset Management Co. Ltd9,276$159K0.0%N/A0.013%
2/19/2026Invesco Ltd.154,782$2.66M0.0%+26.8%0.218%
2/19/2026Corient Private Wealth LLC687,325$11.81M0.0%+12.9%0.969%
2/18/2026Virtus Investment Advisers LLC26,212$450K0.1%N/A0.037%
2/18/2026Wellington Management Group LLP202,617$3.48M0.0%+4.2%0.286%
2/18/2026Susquehanna Portfolio Strategies LLC92,759$1.59M0.0%-45.8%0.131%
2/18/2026Millennium Management LLC441,811$7.59M0.0%+10.0%0.623%
2/18/2026Man Group plc27,099$465K0.0%N/A0.038%
2/18/2026Engineers Gate Manager LP20,082$345K0.0%N/A0.028%
2/17/2026Schonfeld Strategic Advisors LLC12,667$218K0.0%N/A0.018%
2/17/2026AQR Capital Management LLC22,838$392K0.0%+7.2%0.032%
2/17/2026Abel Hall LLC10,240$176K0.0%N/A0.014%
2/17/2026Jump Financial LLC228,000$3.92M0.0%N/A0.322%
2/17/2026Farallon Capital Management LLC23,000$395K0.0%N/A0.032%
2/17/2026Price T Rowe Associates Inc. MD95,745$1.64M0.0%+6.9%0.135%
2/17/2026Osaic Holdings Inc.7,547$130K0.0%+34.6%0.011%
2/17/2026Russell Investments Group Ltd.14,014$241K0.0%+31.0%0.020%
2/17/2026Graham Capital Management L.P.13,222$227K0.0%-61.6%0.019%
2/16/2026Verition Fund Management LLC63,493$1.09M0.0%N/A0.090%
2/16/2026MML Investors Services LLC77,875$1.34M0.0%+31.6%0.110%
2/16/2026Arax Advisory Partners5,255$90K0.0%+56.4%0.007%
2/16/2026Barclays PLC120,490$2.07M0.0%-8.7%0.170%
2/13/2026Stifel Financial Corp1,809,766$31.08M0.0%-0.1%2.553%
2/13/2026Rafferty Asset Management LLC12,226$210K0.0%N/A0.017%
2/13/2026Itau Unibanco Holding S.A.180,000$3.05M0.1%N/A0.254%
2/13/2026Charles Schwab Investment Management Inc.593,222$10.19M0.0%+7.2%0.837%
2/13/2026State Street Corp1,573,526$27.03M0.0%+26.9%2.219%
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2/13/2026Caitong International Asset Management Co. Ltd1,933$33K0.1%N/A0.003%
2/12/2026MetLife Investment Management LLC36,200$622K0.0%+76.6%0.051%
2/12/2026Dimensional Fund Advisors LP96,948$1.67M0.0%N/A0.137%
2/12/2026Mindset Wealth Management LLC52,000$893K0.2%-13.3%0.073%
2/12/2026Informed Momentum Co LLC207,480$3.56M0.4%N/A0.293%
2/12/2026New York State Common Retirement Fund20,713$356K0.0%+81.5%0.029%
2/12/2026Nuveen LLC153,187$2.63M0.0%+74.8%0.216%
2/11/2026Deutsche Bank AG48,694$837K0.0%+19.3%0.069%
2/11/2026Cerity Partners LLC30,450$523K0.0%+6.1%0.043%
2/11/2026Los Angeles Capital Management LLC30,920$531K0.0%N/A0.044%
2/11/2026State of Wyoming1,433$25K0.0%N/A0.002%
2/10/2026Goldman Sachs Group Inc.227,294$3.90M0.0%-32.4%0.321%
2/10/2026AXQ Capital LP29,151$501K0.1%N/A0.041%
2/10/2026Intech Investment Management LLC29,967$515K0.0%+16.9%0.042%
2/9/2026Geode Capital Management LLC1,631,350$28.03M0.0%+6.3%2.301%
2/9/2026AlphaQuest LLC82,597$1.42M0.1%+8,259,600.0%0.116%
2/9/2026Harbour Investments Inc.21,835$375K0.0%+62.1%0.031%
2/9/2026Coldstream Capital Management Inc.53,605$921K0.0%+107.5%0.076%
2/6/2026ProShare Advisors LLC15,171$261K0.0%+12.1%0.021%
2/6/2026HighTower Advisors LLC104,059$1.79M0.0%+9.3%0.147%
2/5/2026AlphaCore Capital LLC17,647$303K0.0%N/A0.025%
2/5/2026Avantax Planning Partners Inc.13,200$227K0.0%+30.7%0.019%
2/3/2026 International Assets Investment Management LLC5,000$86K0.0%-67.8%0.007%
1/29/2026Comerica Bank38,000$653K0.0%+8.6%0.054%
1/29/2026UBS Group AG2,222,982$38.18M0.0%+213.5%3.135%
1/29/2026Vanguard Group Inc.4,013,315$68.93M0.0%+19.9%5.661%
1/29/2026China Universal Asset Management Co. Ltd.16,553$284K0.0%-24.5%0.023%
1/23/2026 Farther Finance Advisors LLC7,106$122K0.0%+16.5%0.010%
1/21/2026Newbridge Financial Services Group Inc.34,310$589K0.1%-74.5%0.048%
1/16/2026 Empirical Financial Services LLC d.b.a. Empirical Wealth Management10,500$180K0.0%-74.1%0.015%
1/9/2026SG Americas Securities LLC18,825$323K0.0%-58.5%0.027%
1/8/2026 Wealth Enhancement Advisory Services LLC31,728$545K0.0%+9.0%0.045%
1/1/2026JPMorgan Chase & Co.416,153$1.71M0.0%+1,201.1%0.587%
11/17/2025Nomura Holdings Inc.43,681$179K0.0%-50.6%0.064%
11/17/2025Millennium Management LLC401,814$1.65M0.0%+49.1%0.590%
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.30,186$124K0.0%-5.2%0.044%
11/17/2025Brevan Howard Capital Management LP129,393$531K0.0%+22.9%0.190%
11/14/2025Two Sigma Investments LP933,314$3.83M0.0%+39.3%1.371%
11/14/2025Bridgeway Capital Management LLC56,715$233K0.0%+78.8%0.083%
11/14/2025Squarepoint Ops LLC155,496$638K0.0%+75.8%0.228%
11/14/2025Newbridge Financial Services Group Inc.134,510$551K0.1%+44.0%0.198%
11/13/2025UBS Group AG709,089$2.91M0.0%-18.4%1.042%
11/13/2025BNP Paribas Financial Markets88,117$361K0.0%+248.7%0.129%
11/13/2025Russell Investments Group Ltd.10,695$44K0.0%+113.1%0.016%
11/12/2025Intech Investment Management LLC25,643$105K0.0%-24.8%0.038%
11/10/2025China Universal Asset Management Co. Ltd.21,929$90K0.0%+86.3%0.032%
11/7/2025GSA Capital Partners LLP10,004$41K0.0%-73.8%0.015%
11/7/2025Vanguard Group Inc.3,346,958$13.72M0.0%+1.9%4.918%
11/7/2025JPMorgan Chase & Co.416,153$1.71M0.0%+1,201.1%0.611%
11/6/2025Rhumbline Advisers105,873$434K0.0%+7.1%0.156%
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11/5/2025 Stordahl Capital Management Inc.22,860$94K0.0%-30.0%0.034%
10/29/2025 Wealth Enhancement Advisory Services LLC29,097$129K0.0%+11.2%0.043%
10/23/2025SG Americas Securities LLC45,324$186K0.0%+99.7%0.067%
10/9/2025Voya Investment Management LLC11,189$46K0.0%-29.7%0.016%
9/26/2025Corient Private Wealth LLC530,614$1.59M0.0%-26.3%0.780%
8/19/2025 B. Riley Wealth Advisors Inc.10,760$32K0.0%N/A0.017%
8/19/2025Newbridge Financial Services Group Inc.93,420$280K0.0%N/A0.151%
8/18/2025Nomura Holdings Inc.88,469$265K0.0%-87.0%0.143%
8/15/2025Tower Research Capital LLC TRC 13,414$40K0.0%+829.6%0.022%
8/15/2025Corient Private Wealth LLC530,614$1.59M0.0%-26.3%0.859%


OMER Institutional Ownership - Frequently Asked Questions

During the previous two years, 116 institutional investors and hedge funds held shares of Omeros. The most heavily invested institutionals were Vanguard Group Inc. ($68.93M), UBS Group AG ($38.18M), Stifel Financial Corp ($31.08M), Geode Capital Management LLC ($28.03M), State Street Corp ($27.03M), Corient Private Wealth LLC ($11.82M), and Charles Schwab Investment Management Inc. ($10.19M).Learn more on Omeros' institutional investors.

48.79% of Omeros' stock is owned by institutional investors. Learn more on OMER's institutional investor holdings.

Of the 102 institutional investors that purchased Omeros' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: UBS Group AG ($1.51M), Vanguard Group Inc. ($825.34K), JPMorgan Chase & Co. ($776.00K), Nomura Holdings Inc. ($430.93K), State Street Corp ($337.64K), Two Sigma Investments LP ($276.30K), and Jump Financial LLC ($228K).

Institutional investors have bought a total of 6,455,311 shares in the last 24 months. This purchase volume represents approximately $82.03M in transactions.

Of the 27 institutional investors that sold Omeros' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Nomura Holdings Inc. ($635.34K), Corient Private Wealth LLC ($379.62K), UBS Group AG ($159.41K), Goldman Sachs Group Inc. ($108.79K), Newbridge Financial Services Group Inc. ($100.20K), Susquehanna Portfolio Strategies LLC ($78.33K), and Polar Asset Management Partners Inc. ($68.80K).

Institutional investors have sold a total of 1,762,759 shares in the last 24 months. This volume of shares sold represents approximately $11.95M in transactions.


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This page (NASDAQ:OMER) was last updated on 7/24/2026 by MarketBeat.com Staff.
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