Omeros Stock Price History
NASDAQ: OMERHealth CareBiotechnology: Pharmaceutical PreparationsUSD
19.83+0.71 (+3.71%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
OMER price history at a glance
The price history for Omeros (OMER) on this page begins on October 5, 2009, when the stock closed at $8.46; it most recently closed at $19.83 on October 5, 2026. The highest price in this record is $30.23, reached on August 17, 2015; the latest close is 34.4% below that peak. Across the 16 complete calendar years in the table, OMER finished higher in 10 and lower in 6. Its best year was 2024 (+242.8%) and its worst was 2022 (-64.9%).
Over roughly 17 years the share price changed +134.4%, a 5.1% compound annual price return (excluding dividends). In the last 12 months alone, OMER has gained 334.9%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 2009
- $30.23
- Date of high
- Aug 17, 2015
- Low since 2009
- $0.92
- Date of low
- Oct 16, 2023
- 52-week high
- $21.24
- 52-week low
- $4.06
- IPO year
- 2009
- Last close
- $19.83
OMER returns
1 week
+6.56%
1 month
+2.27%
3 months
+92.90%
6 months
+72.58%
Year to date
+15.42%
1 year
+334.87%
3 years
+773.57%
5 years
+156.53%
OMER price return, excluding dividends.
OMER annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 19.83 | +21.06% |
| 2025 | 16.38 | +46.12% |
| 2024 | 11.21 | +242.81% |
| 2023 | 3.27 | +44.69% |
| 2022 | 2.26 | -64.85% |
| 2021 | 6.43 | -55.00% |
| 2020 | 14.29 | +6.88% |
| 2019 | 13.37 | +7.65% |
| 2018 | 12.42 | -36.08% |
| 2017 | 19.43 | +95.87% |
| 2016 | 9.92 | -36.94% |
| 2015 | 15.73 | -37.11% |
| 2014 | 25.01 | +114.86% |
| 2013 | 11.64 | +98.97% |
| 2012 | 5.85 | +48.10% |
| 2011 | 3.95 | -52.06% |
| 2010 | 8.24 | +17.38% |
| 2009* | 7.02 | -17.02% |
* Partial year: the record begins after the start of 2009; return measured from the first available close.
2026 return is year to date.
OMER daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 19.20 | 19.91 | 19.19 | 19.83 | +3.71% | |
| 18.63 | 19.14 | 18.41 | 19.12 | +1.97% | |
| 18.11 | 18.84 | 18.02 | 18.75 | +1.30% | |
| 18.95 | 18.99 | 18.31 | 18.51 | -2.06% | |
| 18.82 | 19.15 | 18.55 | 18.90 | +1.56% | |
| 18.60 | 18.76 | 18.22 | 18.61 | +0.76% | |
| 18.87 | 19.20 | 18.47 | 18.47 | -2.99% | |
| 19.25 | 19.40 | 19.02 | 19.04 | -1.09% | |
| 19.26 | 19.57 | 19.00 | 19.25 | -0.93% | |
| 19.83 | 20.38 | 19.38 | 19.43 | -3.24% | |
| 20.39 | 20.61 | 19.66 | 20.08 | -0.25% | |
| 20.52 | 20.62 | 20.11 | 20.13 | -2.94% | |
| 20.65 | 20.97 | 20.43 | 20.74 | -1.47% | |
| 19.58 | 21.24 | 19.30 | 21.05 | +13.85% | |
| 18.23 | 18.51 | 17.82 | 18.49 | +3.47% | |
| 18.69 | 18.69 | 17.68 | 17.87 | -3.14% | |
| 17.52 | 18.57 | 17.42 | 18.45 | +6.40% | |
| 17.16 | 17.99 | 17.15 | 17.34 | +0.99% | |
| 17.26 | 17.40 | 16.50 | 17.17 | -1.66% | |
| 18.30 | 18.30 | 17.42 | 17.46 | -4.49% | |
| 18.74 | 18.98 | 18.28 | 18.28 | -1.67% | |
| 19.12 | 19.24 | 18.30 | 18.59 | -4.13% | |
| 19.01 | 19.55 | 18.93 | 19.39 | +1.41% | |
| 18.70 | 19.37 | 18.52 | 19.12 | +0.90% | |
| 19.00 | 19.23 | 18.90 | 18.95 | -0.84% | |
| 18.99 | 19.18 | 18.70 | 19.11 | +1.33% | |
| 18.97 | 19.47 | 18.44 | 18.86 | +0.59% | |
| 18.66 | 19.04 | 18.48 | 18.75 | -0.21% | |
| 18.54 | 18.94 | 18.01 | 18.79 | +0.97% | |
| 19.02 | 19.16 | 18.42 | 18.61 | -3.32% | |
| 18.24 | 19.62 | 18.00 | 19.25 | +5.65% | |
| 18.96 | 19.08 | 18.20 | 18.22 | -5.50% | |
| 19.34 | 19.65 | 19.12 | 19.28 | -0.21% | |
| 19.10 | 19.39 | 18.42 | 19.32 | +0.26% | |
| 18.64 | 19.58 | 18.41 | 19.27 | +3.44% | |
| 18.30 | 18.73 | 18.07 | 18.63 | +1.31% | |
| 17.13 | 18.89 | 17.13 | 18.39 | +6.98% | |
| 17.03 | 17.29 | 16.90 | 17.19 | -0.98% | |
| 17.17 | 17.52 | 16.90 | 17.36 | +0.99% | |
| 17.35 | 17.61 | 16.54 | 17.19 | -0.92% | |
| 16.65 | 18.14 | 16.27 | 17.35 | +26.55% | |
| 13.50 | 13.80 | 13.29 | 13.71 | +0.81% | |
| 13.46 | 13.85 | 13.33 | 13.60 | -0.15% | |
| 13.36 | 13.64 | 13.00 | 13.62 | +2.79% | |
| 13.29 | 13.44 | 12.92 | 13.25 | +0.76% | |
| 12.44 | 13.19 | 12.27 | 13.15 | +3.95% | |
| 12.96 | 13.13 | 12.55 | 12.65 | -2.24% | |
| 12.66 | 13.05 | 12.42 | 12.94 | +3.03% | |
| 12.25 | 12.59 | 11.90 | 12.56 | +6.08% | |
| 11.93 | 11.99 | 11.37 | 11.84 | -0.75% | |
| 11.65 | 12.16 | 11.63 | 11.93 | +2.23% | |
| 11.36 | 11.89 | 11.24 | 11.67 | +3.46% | |
| 11.16 | 11.29 | 10.58 | 11.28 | -0.53% | |
| 11.25 | 11.65 | 10.50 | 11.34 | +15.83% | |
| 10.28 | 10.29 | 9.77 | 9.79 | -4.77% | |
| 9.60 | 10.36 | 9.60 | 10.28 | +4.47% | |
| 9.43 | 9.91 | 9.43 | 9.84 | +3.25% | |
| 9.72 | 9.86 | 9.34 | 9.53 | -1.04% | |
| 9.59 | 9.82 | 9.37 | 9.63 | -0.62% | |
| 9.16 | 9.92 | 9.12 | 9.69 | +5.10% | |
| 10.25 | 10.33 | 9.17 | 9.22 | -11.09% | |
| 10.55 | 10.66 | 10.33 | 10.37 | -1.24% | |
| 10.01 | 10.70 | 9.98 | 10.50 | +4.90% | |
| 10.06 | 10.22 | 9.94 | 10.01 | -2.63% | |
| 10.18 | 10.35 | 9.94 | 10.28 | +0.10% | |
| 10.28 | 10.60 | 10.17 | 10.27 | +0.29% | |
| 10.28 | 10.69 | 10.24 | 10.24 | -0.87% | |
| 10.33 | 10.56 | 10.13 | 10.33 | -0.10% | |
| 9.25 | 10.50 | 9.25 | 10.34 | +11.42% | |
| 9.41 | 9.62 | 9.00 | 9.28 | -1.38% | |
| 9.52 | 9.73 | 9.40 | 9.41 | -1.05% | |
| 9.99 | 10.16 | 9.50 | 9.51 | -4.04% | |
| 8.53 | 9.94 | 8.52 | 9.91 | +14.30% | |
| 7.59 | 8.89 | 7.39 | 8.67 | -19.12% | |
| 10.61 | 10.83 | 10.52 | 10.72 | +1.32% | |
| 10.57 | 10.83 | 10.46 | 10.58 | +0.95% | |
| 10.28 | 10.60 | 10.10 | 10.48 | +1.45% | |
| 10.10 | 10.47 | 9.79 | 10.33 | +0.49% | |
| 10.09 | 10.42 | 9.75 | 10.28 | +6.64% | |
| 9.44 | 9.93 | 9.26 | 9.64 | +1.69% | |
| 9.34 | 9.88 | 8.86 | 9.48 | +1.61% | |
| 8.82 | 9.61 | 8.82 | 9.33 | +6.75% | |
| 10.05 | 10.11 | 6.70 | 8.74 | -14.15% | |
| 10.19 | 10.48 | 10.02 | 10.18 | -0.20% | |
| 9.87 | 10.45 | 9.87 | 10.20 | +2.31% | |
| 9.86 | 10.04 | 9.55 | 9.97 | +1.22% | |
| 10.02 | 10.10 | 9.63 | 9.85 | +0.61% | |
| 10.24 | 10.26 | 9.75 | 9.79 | -4.49% | |
| 10.25 | 10.80 | 10.10 | 10.25 | +0.89% | |
| 10.21 | 10.23 | 9.86 | 10.16 | -0.97% | |
| 10.54 | 10.66 | 10.22 | 10.26 | -4.29% | |
| 10.91 | 11.00 | 10.61 | 10.72 | -2.90% | |
| 11.12 | 11.12 | 10.77 | 11.04 | -0.99% | |
| 10.84 | 11.21 | 10.58 | 11.15 | +0.72% | |
| 11.77 | 12.02 | 10.55 | 11.07 | -4.98% | |
| 11.55 | 12.00 | 11.46 | 11.65 | +1.66% | |
| 11.84 | 11.97 | 11.46 | 11.46 | -4.18% | |
| 12.38 | 12.55 | 11.92 | 11.96 | -3.39% | |
| 12.23 | 12.55 | 12.00 | 12.38 | +3.43% | |
| 11.57 | 11.98 | 11.41 | 11.97 | +2.31% | |
| 12.29 | 12.35 | 11.66 | 11.70 | -4.49% | |
| 12.86 | 13.00 | 11.80 | 12.25 | -7.76% | |
| 14.54 | 14.72 | 12.51 | 13.28 | -7.65% | |
| 14.77 | 14.86 | 13.78 | 14.38 | -2.57% | |
| 14.48 | 14.94 | 14.33 | 14.76 | +2.79% | |
| 14.14 | 14.76 | 14.13 | 14.36 | +1.63% | |
| 14.62 | 14.83 | 14.12 | 14.13 | -3.48% | |
| 14.86 | 14.88 | 14.36 | 14.64 | -1.28% | |
| 14.77 | 14.92 | 14.63 | 14.83 | +0.41% | |
| 14.98 | 15.05 | 14.63 | 14.77 | -0.94% | |
| 15.03 | 15.25 | 14.69 | 14.91 | -1.00% | |
| 14.57 | 15.32 | 14.45 | 15.06 | +3.15% | |
| 14.72 | 14.92 | 14.58 | 14.60 | +0.27% | |
| 14.64 | 14.72 | 14.37 | 14.56 | -0.75% | |
| 14.65 | 14.89 | 14.30 | 14.67 | -0.47% | |
| 13.50 | 14.99 | 13.48 | 14.74 | +8.94% | |
| 13.52 | 13.92 | 13.04 | 13.53 | +0.07% | |
| 13.32 | 13.70 | 13.01 | 13.52 | +1.12% | |
| 13.52 | 13.59 | 13.22 | 13.37 | +0.83% | |
| 13.40 | 13.50 | 13.02 | 13.26 | -1.56% | |
| 13.35 | 13.94 | 13.04 | 13.47 | +0.22% | |
| 12.59 | 13.46 | 12.45 | 13.44 | +7.18% | |
| 12.48 | 12.60 | 12.09 | 12.54 | +2.37% | |
| 11.98 | 12.57 | 11.92 | 12.25 | +3.46% | |
| 11.48 | 11.84 | 11.46 | 11.84 | +4.04% | |
| 11.41 | 11.65 | 11.25 | 11.38 | -0.96% | |
| 12.02 | 12.02 | 11.46 | 11.49 | -3.53% | |
| 11.40 | 11.94 | 11.36 | 11.91 | +3.48% | |
| 11.33 | 11.60 | 10.93 | 11.51 | +4.83% | |
| 10.80 | 11.00 | 10.41 | 10.98 | +0.83% | |
| 10.94 | 11.27 | 10.70 | 10.89 | -0.09% | |
| 11.62 | 11.81 | 10.82 | 10.90 | -9.77% | |
| 11.32 | 13.00 | 11.29 | 12.08 | +14.39% | |
| 10.00 | 10.62 | 9.99 | 10.56 | +7.65% | |
| 9.95 | 10.06 | 9.77 | 9.81 | -0.71% | |
| 10.40 | 10.41 | 9.86 | 9.88 | -4.08% | |
| 10.33 | 10.70 | 10.21 | 10.30 | -1.34% | |
| 10.36 | 10.73 | 10.29 | 10.44 | +2.55% | |
| 10.50 | 10.59 | 10.05 | 10.18 | -4.50% | |
| 11.17 | 11.44 | 10.59 | 10.66 | -3.09% | |
| 11.07 | 11.22 | 10.89 | 11.00 | -1.08% | |
| 10.83 | 11.27 | 10.66 | 11.12 | +1.55% | |
| 11.18 | 11.18 | 10.75 | 10.95 | -2.84% | |
| 11.17 | 11.39 | 11.01 | 11.27 | +1.17% | |
| 11.29 | 11.40 | 11.09 | 11.14 | -0.45% | |
| 11.56 | 11.71 | 11.12 | 11.19 | -2.01% | |
| 11.66 | 11.74 | 11.28 | 11.42 | -4.27% | |
| 11.62 | 11.98 | 11.51 | 11.93 | +1.88% | |
| 11.26 | 11.93 | 11.22 | 11.71 | +3.72% | |
| 11.36 | 11.64 | 11.16 | 11.29 | -2.17% | |
| 11.33 | 11.66 | 11.15 | 11.54 | +0.44% | |
| 11.50 | 11.69 | 11.33 | 11.49 | -0.86% | |
| 11.68 | 11.88 | 11.37 | 11.59 | -0.43% | |
| 11.54 | 11.76 | 11.22 | 11.64 | -2.84% | |
| 11.79 | 12.13 | 11.67 | 11.98 | -0.58% | |
| 11.37 | 12.08 | 11.37 | 12.05 | +4.33% | |
| 11.38 | 11.58 | 11.28 | 11.55 | +1.49% | |
| 11.60 | 11.78 | 11.31 | 11.38 | -1.47% | |
| 11.37 | 11.83 | 11.36 | 11.55 | +0.96% | |
| 11.96 | 12.13 | 11.09 | 11.44 | -4.98% | |
| 11.86 | 12.22 | 11.73 | 12.04 | +0.25% | |
| 11.62 | 12.15 | 11.62 | 12.01 | +2.21% | |
| 11.87 | 12.24 | 11.66 | 11.75 | -1.51% | |
| 11.93 | 12.45 | 11.75 | 11.93 | +2.05% | |
| 11.54 | 12.14 | 11.45 | 11.69 | +2.19% | |
| 11.21 | 11.54 | 11.05 | 11.44 | +1.87% | |
| 11.24 | 11.45 | 11.00 | 11.23 | +0.54% | |
| 11.34 | 11.46 | 11.12 | 11.17 | -1.15% | |
| 11.18 | 11.45 | 11.01 | 11.30 | +0.62% | |
| 11.00 | 11.41 | 10.89 | 11.23 | +4.56% | |
| 11.30 | 11.76 | 10.55 | 10.74 | -6.69% | |
| 11.84 | 11.96 | 11.30 | 11.51 | -2.62% | |
| 11.74 | 12.18 | 11.61 | 11.82 | +0.85% | |
| 11.60 | 11.89 | 11.44 | 11.72 | +0.26% | |
| 11.84 | 12.17 | 11.61 | 11.69 | -2.18% | |
| 11.78 | 12.08 | 11.66 | 11.95 | +1.19% | |
| 12.61 | 12.64 | 11.76 | 11.81 | -6.79% | |
| 11.53 | 12.68 | 11.45 | 12.67 | +9.89% | |
| 11.81 | 11.82 | 11.52 | 11.53 | -3.35% | |
| 12.16 | 12.22 | 11.88 | 11.93 | -1.81% | |
| 12.01 | 12.50 | 11.99 | 12.15 | +0.58% | |
| 12.05 | 12.60 | 11.69 | 12.08 | -1.47% | |
| 11.94 | 12.47 | 11.52 | 12.26 | +2.08% | |
| 12.18 | 12.21 | 11.71 | 12.01 | -1.64% | |
| 12.85 | 12.93 | 11.92 | 12.21 | -6.65% | |
| 12.58 | 13.26 | 12.53 | 13.08 | +3.65% | |
| 12.52 | 12.64 | 12.11 | 12.62 | -1.56% | |
| 12.22 | 13.09 | 11.85 | 12.82 | +2.64% | |
| 13.66 | 14.25 | 12.45 | 12.49 | -7.14% | |
| 14.52 | 16.14 | 13.41 | 13.45 | -4.54% | |
| 13.61 | 14.61 | 13.60 | 14.09 | +4.14% | |
| 15.09 | 15.13 | 13.51 | 13.53 | -12.14% | |
| 16.37 | 16.39 | 15.29 | 15.40 | -5.98% | |
| 17.50 | 17.63 | 16.29 | 16.38 | -4.66% | |
| 16.68 | 17.35 | 16.13 | 17.18 | +1.30% | |
| 16.57 | 17.47 | 16.00 | 16.96 | +2.35% | |
| 15.17 | 16.64 | 14.43 | 16.57 | +5.47% | |
| 15.35 | 15.87 | 14.21 | 15.71 | +2.28% | |
| 16.44 | 17.65 | 13.92 | 15.36 | +75.54% | |
| 9.43 | 9.65 | 8.60 | 8.75 | -7.99% | |
| 9.62 | 10.26 | 9.50 | 9.51 | -0.94% | |
| 9.25 | 9.93 | 9.25 | 9.60 | +4.80% | |
| 8.92 | 9.35 | 8.92 | 9.16 | +3.74% | |
| 8.80 | 9.30 | 8.72 | 8.83 | +0.68% | |
| 9.02 | 9.18 | 8.27 | 8.77 | -4.67% | |
| 10.20 | 10.24 | 9.19 | 9.20 | -9.36% | |
| 10.61 | 10.71 | 10.15 | 10.15 | -4.15% | |
| 11.09 | 11.42 | 10.35 | 10.59 | -5.78% | |
| 11.47 | 11.71 | 11.22 | 11.24 | -2.01% | |
| 11.28 | 11.65 | 11.13 | 11.47 | +0.61% | |
| 11.01 | 11.44 | 10.82 | 11.40 | +5.07% | |
| 10.94 | 11.00 | 10.61 | 10.85 | -1.63% | |
| 10.52 | 11.03 | 10.34 | 11.03 | +3.86% | |
| 9.43 | 10.68 | 9.31 | 10.62 | +12.62% | |
| 9.67 | 10.08 | 9.42 | 9.43 | -2.58% | |
| 9.83 | 10.41 | 9.56 | 9.68 | -0.10% | |
| 9.68 | 9.93 | 9.57 | 9.69 | +0.62% | |
| 9.70 | 9.84 | 9.50 | 9.63 | +1.90% | |
| 9.68 | 9.80 | 9.34 | 9.45 | -3.18% | |
| 8.92 | 10.00 | 8.90 | 9.76 | +10.03% | |
| 8.05 | 8.91 | 8.04 | 8.87 | +7.78% | |
| 8.39 | 8.60 | 8.20 | 8.23 | +0.12% | |
| 8.41 | 8.74 | 8.20 | 8.22 | -3.29% | |
| 9.00 | 9.55 | 8.48 | 8.50 | -6.39% | |
| 7.90 | 9.10 | 7.72 | 9.08 | +15.37% | |
| 6.64 | 7.89 | 6.59 | 7.87 | +25.32% | |
| 6.84 | 6.88 | 6.24 | 6.28 | -8.85% | |
| 6.89 | 7.04 | 6.81 | 6.89 | 0.00% | |
| 6.61 | 7.06 | 6.52 | 6.89 | +4.39% | |
| 6.68 | 6.81 | 6.53 | 6.60 | +0.15% | |
| 6.50 | 6.62 | 6.25 | 6.59 | +0.15% | |
| 6.99 | 7.03 | 6.56 | 6.58 | -5.87% | |
| 6.69 | 7.02 | 6.64 | 6.99 | +3.86% | |
| 7.06 | 7.24 | 6.71 | 6.73 | -6.14% | |
| 7.21 | 7.35 | 7.07 | 7.17 | -2.18% | |
| 7.54 | 7.54 | 7.22 | 7.33 | -2.53% | |
| 7.58 | 7.94 | 7.50 | 7.52 | -2.08% | |
| 8.00 | 8.02 | 7.51 | 7.68 | -3.52% | |
| 7.73 | 8.05 | 7.44 | 7.96 | +3.24% | |
| 7.66 | 7.82 | 7.51 | 7.71 | +2.12% | |
| 7.71 | 7.85 | 7.53 | 7.55 | -1.31% | |
| 7.93 | 7.95 | 7.60 | 7.65 | -1.16% | |
| 7.77 | 8.03 | 7.43 | 7.74 | -1.65% | |
| 8.10 | 8.32 | 7.77 | 7.87 | -4.61% | |
| 7.97 | 8.37 | 7.86 | 8.25 | +1.73% | |
| 9.61 | 9.66 | 7.96 | 8.11 | -17.50% | |
| 9.15 | 10.36 | 8.95 | 9.83 | -5.66% | |
| 11.59 | 12.10 | 9.19 | 10.42 | +154.15% | |
| 4.15 | 4.19 | 4.06 | 4.10 | -2.15% | |
| 4.30 | 4.30 | 4.09 | 4.19 | 0.00% | |
| 4.59 | 4.59 | 4.15 | 4.19 | -8.11% | |
| 4.43 | 4.60 | 4.38 | 4.56 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the OMER chart for longer ranges.