Omeros (OMER) Stock Chart & Stock Price History $3.62 -0.26 (-6.70%) Closing price 06/11/2025 04:00 PM EasternExtended Trading$3.70 +0.08 (+2.21%) As of 08:02 AM 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 Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Omeros Stock Price Performance The Omeros (OMER) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 3.98%, with a year-to-date return of -63.36%. In the past month, the stock has decreased 4.74%, reflecting recent market activity. As of the latest close, Omeros traded at $3.62 with a market cap of $212.11 million and volume of 810,728 shares. Five years ago, the stock traded at $14.64, representing a 75.26% decrease over that period. At the time, it had a market cap of $826.37 million and a volume of 772,063 shares. Receive OMER Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Omeros and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-3.98%1 Month Performance-4.74%3 Month Performance-54.81%Year-To-Date Performance-63.36%1 Year Performance-3.98%5 Year Performance-75.26% OMER Stock Chart for Thursday, June, 12, 2025 OMER Chart by TradingView Omeros Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization06/11/2025$3.88$3.62-6.70%$4.00$3.61810,728 shs$212.11 million06/10/2025$3.77$3.88+2.92%$4.06$3.811.25 million shs$227.34 million06/09/2025$3.77$3.77$3.88$3.57701,847 shs$220.90 million06/06/2025$3.30$3.77+14.24%$3.85$3.301.04 million shs$220.90 million06/05/2025$3.34$3.30-1.20%$3.35$3.18661,928 shs$193.36 million06/04/2025$3.14$3.34+6.37%$3.40$3.10868,441 shs$195.70 million06/03/2025$3.08$3.14+1.95%$3.21$3.03721,289 shs$183.98 million06/02/2025$3.11$3.08-0.96%$3.18$2.971.07 million shs$180.47 million05/30/2025$3.32$3.11-6.33%$3.28$3.05623,015 shs$182.22 million05/29/2025$3.14$3.32+5.73%$3.34$3.07655,944 shs$194.53 million 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. 05/28/2025$3.17$3.14-0.95%$3.17$3.001.08 million shs$183.98 million05/27/2025$3.16$3.17+0.32%$3.34$3.07672,372 shs$185.74 million05/26/2025$3.16$3.16$3.19$3.05569,591 shs$185.15 million05/23/2025$3.22$3.16-1.86%$3.19$3.05569,591 shs$184.25 million05/22/2025$3.11$3.22+3.54%$3.29$3.03867,409 shs$187.75 million05/21/2025$3.29$3.11-5.47%$3.27$3.061.01 million shs$181.33 million05/20/2025$3.32$3.29-0.90%$3.41$3.111.25 million shs$191.83 million05/19/2025$3.21$3.32+3.43%$3.36$3.092.09 million shs$193.58 million05/16/2025$3.95$3.21-18.73%$3.93$2.973.00 million shs$187.16 million05/15/2025$3.93$3.95+0.51%$4.16$3.761.56 million shs$230.31 million05/14/2025$4.43$3.93-11.29%$4.44$3.911.68 million shs$229.14 million05/13/2025$3.80$4.43+16.58%$4.70$4.003.28 million shs$258.30 million05/12/2025$6.18$3.80-38.51%$5.90$3.797.42 million shs$221.56 million Related Companies NKTR Stock Price Chart ASMB Stock Price Chart CPIX Stock Price Chart LLY Stock Price Chart JNJ Stock Price Chart ABBV Stock Price Chart MRK Stock Price Chart PFE Stock Price Chart BMY Stock Price Chart ZTS Stock Price Chart Receive OMER Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Omeros and its competitors with MarketBeat's FREE daily newsletter. 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