If you invested $1000 in Agenus Inc. (AGEN) 10 years ago, it would be worth $66.53 as of August 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $65.35, while $1000 invested 1 year ago would be worth $1,789.82. This corresponds to total returns of -93.35%, -93.47%, 78.98%, respectively, with annualized returns of -23.73%, -42.05%, 78.98%.
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 |
|---|---|---|---|---|---|---|
| August 21, 2026 | 7.58 | 8.09 | 8.09 | 8.35 | 7.58 | 1.52M |
| August 20, 2026 | 8.22 | 7.49 | 7.49 | 8.25 | 7.31 | 1.58M |
| August 19, 2026 | 7.66 | 8.26 | 8.26 | 8.73 | 7.62 | 0 |
| August 18, 2026 | 7.13 | 7.53 | 7.53 | 7.65 | 7.08 | 958,023 |
| August 17, 2026 | 7.3 | 7.15 | 7.15 | 7.31 | 6.96 | 831,233 |
| August 14, 2026 | 6.93 | 7.32 | 7.32 | 7.46 | 6.83 | 1.25M |
| August 13, 2026 | 6.85 | 7 | 7 | 7.03 | 6.71 | 624,845 |
| August 12, 2026 | 6.91 | 6.9 | 6.9 | 7.2 | 6.83 | 0 |
| August 11, 2026 | 6.8 | 6.83 | 6.83 | 6.9 | 6.42 | 0 |
| August 10, 2026 | 6.83 | 7 | 7 | 7.09 | 6.36 | 1.92M |
| August 07, 2026 | 7.52 | 6.96 | 6.96 | 7.55 | 6.92 | 1.14M |
| August 06, 2026 | 7.67 | 7.49 | 7.49 | 8.85 | 7.32 | 2.45M |
| August 05, 2026 | 8.35 | 7.78 | 7.78 | 8.52 | 7.69 | 1.46M |
| August 04, 2026 | 7.85 | 8.3 | 8.3 | 8.38 | 7.75 | 2.01M |
| August 03, 2026 | 7.65 | 7.82 | 7.82 | 8.09 | 7.5 | 1.65M |
| July 31, 2026 | 7.79 | 7.5 | 7.5 | 7.98 | 7.32 | 1.57M |
| July 30, 2026 | 6.77 | 7.91 | 7.91 | 7.99 | 6.51 | 3M |
| July 29, 2026 | 6.56 | 6.63 | 6.63 | 6.95 | 6.48 | 1.83M |
| July 28, 2026 | 6.06 | 6.6 | 6.6 | 6.64 | 5.88 | 2.78M |
| July 27, 2026 | 5.99 | 6.13 | 6.13 | 6.2 | 5.87 | 1.23M |
| July 24, 2026 | 6.2 | 5.98 | 5.98 | 6.23 | 5.81 | 1.21M |
| July 23, 2026 | 5.53 | 6.19 | 6.19 | 6.23 | 5.46 | 2.32M |
| July 22, 2026 | 5.57 | 5.53 | 5.53 | 5.89 | 5.5 | 1.7M |
| July 21, 2026 | 5 | 5.58 | 5.58 | 5.9 | 4.99 | 2.57M |
| July 20, 2026 | 5.06 | 4.97 | 4.97 | 5.47 | 4.94 | 1.96M |
| July 17, 2026 | 4.91 | 5.01 | 5.01 | 5.14 | 4.78 | 1.72M |
| July 16, 2026 | 5 | 5 | 5 | 5.28 | 4.67 | 2.69M |
| July 15, 2026 | 5.19 | 5.01 | 5.01 | 5.19 | 4.66 | 4.46M |
| July 14, 2026 | 6.12 | 5.08 | 5.08 | 6.28 | 4.99 | 11.09M |
| July 13, 2026 | 5.42 | 6.12 | 6.12 | 8.7 | 4.91 | 173.72M |
| July 10, 2026 | 3.24 | 3.35 | 3.35 | 3.39 | 3.1 | 833,262 |
| July 09, 2026 | 3.25 | 3.24 | 3.24 | 3.35 | 3.19 | 653,765 |
| July 08, 2026 | 3.47 | 3.25 | 3.25 | 3.63 | 3.25 | 797,526 |
| July 07, 2026 | 3.36 | 3.5 | 3.5 | 3.58 | 3.25 | 1.16M |
| July 06, 2026 | 3.5 | 3.41 | 3.41 | 3.55 | 3.41 | 547,480 |
| July 02, 2026 | 3.4 | 3.49 | 3.49 | 3.52 | 3.37 | 680,348 |
| July 01, 2026 | 3.06 | 3.41 | 3.41 | 3.43 | 3.06 | 659,401 |
| June 30, 2026 | 3.18 | 3.06 | 3.06 | 3.2 | 3.02 | 644,422 |
| June 29, 2026 | 3.03 | 3.15 | 3.15 | 3.23 | 2.96 | 944,898 |
| June 26, 2026 | 2.88 | 3.03 | 3.03 | 3.1 | 2.87 | 5.01M |
| June 25, 2026 | 2.97 | 2.88 | 2.88 | 3.05 | 2.85 | 593,601 |
| June 24, 2026 | 3.07 | 2.92 | 2.92 | 3.13 | 2.91 | 624,974 |
| June 23, 2026 | 2.99 | 3.07 | 3.07 | 3.18 | 2.99 | 438,399 |
| June 22, 2026 | 2.99 | 3.04 | 3.04 | 3.1 | 2.98 | 476,046 |
| June 18, 2026 | 3 | 3 | 3 | 3.1 | 2.91 | 867,615 |
| June 17, 2026 | 3.02 | 2.96 | 2.96 | 3.05 | 2.86 | 723,356 |
| June 16, 2026 | 3.26 | 2.98 | 2.98 | 3.39 | 2.97 | 833,087 |
| June 15, 2026 | 3.36 | 3.25 | 3.25 | 3.44 | 3.24 | 454,657 |
| June 12, 2026 | 3.4 | 3.3 | 3.3 | 3.45 | 3.29 | 503,304 |
| June 11, 2026 | 3.09 | 3.39 | 3.39 | 3.42 | 3.04 | 1.2M |
| June 10, 2026 | 3.11 | 3.07 | 3.07 | 3.17 | 3.06 | 758,711 |
| June 09, 2026 | 3.2 | 3.11 | 3.11 | 3.31 | 3.11 | 498,106 |
| June 08, 2026 | 3.3 | 3.14 | 3.14 | 3.32 | 3.12 | 366,419 |
| June 05, 2026 | 3.36 | 3.23 | 3.23 | 3.36 | 3.19 | 0 |
| June 04, 2026 | 3.23 | 3.4 | 3.4 | 3.48 | 3.23 | 514,472 |
| June 03, 2026 | 3.36 | 3.22 | 3.22 | 3.42 | 3.21 | 465,481 |
| June 02, 2026 | 3.44 | 3.38 | 3.38 | 3.52 | 3.36 | 412,535 |
| June 01, 2026 | 3.52 | 3.48 | 3.48 | 3.53 | 3.33 | 863,278 |
| May 29, 2026 | 3.41 | 3.5 | 3.5 | 3.5 | 3.3 | 612,466 |
| May 28, 2026 | 3.41 | 3.4 | 3.4 | 3.45 | 3.29 | 670,586 |