If you invested $1000 in Annexon, Inc. (ANNX) since IPO date, it would be worth $226.35 as of October 10, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $203.85, while $1000 invested 1 year ago would be worth $1,296.77. This corresponds to total returns of -77.36%, -79.61%, 29.68%, respectively, with annualized returns of -21.26%, -27.24%, 29.68%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| October 09, 2026 | 3.97 | 4.02 | 4.02 | 4.14 | 3.97 | 2.39M |
| October 08, 2026 | 3.99 | 4 | 4 | 4.04 | 3.86 | 3.21M |
| October 07, 2026 | 3.99 | 4.01 | 4.01 | 4.18 | 3.91 | 2.45M |
| October 06, 2026 | 4.21 | 4.03 | 4.03 | 4.26 | 4.01 | 2.69M |
| October 05, 2026 | 4.25 | 4.2 | 4.2 | 4.31 | 4.06 | 3.45M |
| October 02, 2026 | 4.21 | 4.19 | 4.19 | 4.26 | 4.11 | 4.02M |
| October 01, 2026 | 4.18 | 4.12 | 4.12 | 4.38 | 4.12 | 3.92M |
| September 30, 2026 | 4.19 | 4.23 | 4.23 | 4.27 | 4.05 | 4.41M |
| September 29, 2026 | 4 | 4.13 | 4.13 | 4.24 | 3.94 | 3.51M |
| September 28, 2026 | 3.85 | 4.01 | 4.01 | 4.08 | 3.74 | 5.07M |
| September 25, 2026 | 3.81 | 3.64 | 3.64 | 3.85 | 3.63 | 3.5M |
| September 24, 2026 | 3.85 | 3.8 | 3.8 | 3.87 | 3.73 | 2.02M |
| September 23, 2026 | 4.18 | 3.87 | 3.87 | 4.19 | 3.81 | 2.42M |
| September 22, 2026 | 4.28 | 4.18 | 4.18 | 4.34 | 4.13 | 2M |
| September 21, 2026 | 4.17 | 4.22 | 4.22 | 4.29 | 4.12 | 4.18M |
| September 18, 2026 | 4.16 | 4.23 | 4.23 | 4.31 | 4.13 | 4.94M |
| September 17, 2026 | 3.92 | 4.17 | 4.17 | 4.22 | 3.92 | 3.12M |
| September 16, 2026 | 3.91 | 3.93 | 3.93 | 4 | 3.88 | 4.51M |
| September 15, 2026 | 3.93 | 3.92 | 3.92 | 3.98 | 3.79 | 2.96M |
| September 11, 2026 | 4.2 | 3.94 | 3.94 | 4.2 | 3.92 | 3.94M |
| September 10, 2026 | 4.33 | 4.14 | 4.14 | 4.33 | 4.04 | 4.2M |
| September 09, 2026 | 4.6 | 4.37 | 4.37 | 4.66 | 4.34 | 5.53M |
| September 08, 2026 | 4.76 | 4.67 | 4.67 | 4.79 | 4.64 | 2.13M |
| September 04, 2026 | 4.81 | 4.87 | 4.87 | 4.91 | 4.79 | 1.23M |
| September 03, 2026 | 4.93 | 4.84 | 4.84 | 5.04 | 4.76 | 2.31M |
| September 02, 2026 | 4.9 | 4.93 | 4.93 | 5.08 | 4.78 | 1.84M |
| September 01, 2026 | 4.96 | 4.89 | 4.89 | 5 | 4.85 | 1.47M |
| August 31, 2026 | 4.99 | 4.94 | 4.94 | 5.04 | 4.83 | 2.43M |
| August 28, 2026 | 5.18 | 4.97 | 4.97 | 5.21 | 4.95 | 1.62M |
| August 27, 2026 | 5 | 5.25 | 5.25 | 5.32 | 4.91 | 3.02M |
| August 26, 2026 | 5.13 | 4.99 | 4.99 | 5.18 | 4.96 | 2.28M |
| August 25, 2026 | 5.13 | 5.15 | 5.15 | 5.23 | 5.09 | 2.94M |
| August 24, 2026 | 5.05 | 5.06 | 5.06 | 5.13 | 4.8 | 3.37M |
| August 21, 2026 | 5.24 | 5.07 | 5.07 | 5.28 | 5.02 | 1.43M |
| August 20, 2026 | 5.41 | 5.18 | 5.18 | 5.47 | 5.11 | 1.67M |
| August 19, 2026 | 5.45 | 5.5 | 5.5 | 5.59 | 5.34 | 3.5M |
| August 18, 2026 | 5.03 | 5.28 | 5.28 | 5.31 | 5.02 | 2.24M |
| August 17, 2026 | 5.26 | 5.13 | 5.13 | 5.29 | 5.06 | 3.63M |
| August 14, 2026 | 5.21 | 5.29 | 5.29 | 5.35 | 5.08 | 2.99M |
| August 13, 2026 | 5.36 | 5.26 | 5.26 | 5.4 | 5.2 | 3.12M |
| August 12, 2026 | 5.06 | 5.33 | 5.33 | 5.42 | 5 | 3.95M |
| August 11, 2026 | 5.42 | 5.34 | 5.34 | 5.45 | 5.17 | 0 |
| August 10, 2026 | 5.39 | 5.39 | 5.39 | 5.51 | 5.27 | 1.96M |
| August 07, 2026 | 5.63 | 5.41 | 5.41 | 5.7 | 5.39 | 1.79M |
| August 06, 2026 | 5.37 | 5.6 | 5.6 | 5.6 | 5.37 | 3.05M |
| August 05, 2026 | 5.4 | 5.37 | 5.37 | 5.43 | 5.26 | 1.77M |
| August 04, 2026 | 5.35 | 5.33 | 5.33 | 5.48 | 5.26 | 2.56M |
| August 03, 2026 | 5.07 | 5.25 | 5.25 | 5.27 | 4.89 | 2.69M |
| July 31, 2026 | 5.37 | 5.1 | 5.1 | 5.4 | 5.03 | 2.8M |
| July 30, 2026 | 4.88 | 5.27 | 5.27 | 5.3 | 4.83 | 2.61M |
| July 29, 2026 | 4.97 | 4.86 | 4.86 | 5.03 | 4.76 | 3.46M |
| July 28, 2026 | 5.12 | 4.97 | 4.97 | 5.2 | 4.9 | 2.49M |
| July 27, 2026 | 5.3 | 5.13 | 5.13 | 5.4 | 5.13 | 1.63M |
| July 24, 2026 | 5.43 | 5.22 | 5.22 | 5.61 | 5.16 | 2.73M |
| July 23, 2026 | 5.12 | 5.3 | 5.3 | 5.35 | 5.06 | 2.19M |
| July 22, 2026 | 5.28 | 5.23 | 5.23 | 5.37 | 5.15 | 1.62M |
| July 21, 2026 | 5.4 | 5.39 | 5.39 | 5.64 | 4.96 | 2.96M |
| July 20, 2026 | 5.78 | 5.57 | 5.57 | 5.92 | 5.54 | 2.22M |
| July 17, 2026 | 5.75 | 5.8 | 5.8 | 6.16 | 5.68 | 3.34M |
| July 16, 2026 | 6.5 | 5.89 | 5.89 | 6.58 | 5.78 | 7.71M |