Agenus Stock Price History
NASDAQ: AGENHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
7.67+0.13 (+1.72%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
AGEN price history at a glance
The price history for Agenus (AGEN) on this page begins on February 7, 2000, when the stock closed at $5,269.87; it most recently closed at $7.67 on October 5, 2026. The highest price in this record is $7,065.75, reached on March 6, 2000; the latest close is 99.9% below that peak. Across the 25 complete calendar years in the table, AGEN finished higher in 10 and lower in 15. Its best year was 2012 (+109.0%) and its worst was 2024 (-80.3%).
Over roughly 27 years the share price changed -99.9%, a -21.7% compound annual price return (excluding dividends). In the last 12 months alone, AGEN has gained 93.2%. 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 2000
- $7,065.75
- Date of high
- Mar 6, 2000
- Low since 2000
- $1.38
- Date of low
- Apr 7, 2025
- 52-week high
- $10.31
- 52-week low
- $2.71
- IPO year
- 2000
- Last close
- $7.67
AGEN returns
1 week
-8.25%
1 month
+11.81%
3 months
+128.96%
6 months
+93.69%
Year to date
+144.27%
1 year
+93.20%
3 years
-63.48%
5 years
-92.64%
AGEN price return, excluding dividends.
AGEN annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 7.67 | +137.46% |
| 2025 | 3.23 | -1.22% |
| 2024 | 3.27 | -80.30% |
| 2023 | 16.60 | -64.76% |
| 2022 | 47.11 | -25.47% |
| 2021 | 63.20 | +1.26% |
| 2020 | 62.41 | -17.62% |
| 2019 | 75.76 | +29.97% |
| 2018 | 58.29 | -8.90% |
| 2017 | 63.98 | -20.87% |
| 2016 | 80.86 | -9.25% |
| 2015 | 89.11 | +14.07% |
| 2014 | 78.12 | +42.14% |
| 2013 | 54.96 | -33.01% |
| 2012 | 82.04 | +109.00% |
| 2011 | 39.25 | -67.00% |
| 2010 | 118.94 | +57.81% |
| 2009 | 75.37 | +33.33% |
| 2008 | 56.53 | -77.67% |
| 2007 | 253.19 | +17.49% |
| 2006 | 215.51 | -61.55% |
| 2005 | 560.55 | -52.96% |
| 2004 | 1,191.76 | -11.69% |
| 2003 | 1,349.56 | +5.04% |
| 2002 | 1,284.79 | -33.27% |
| 2001 | 1,925.42 | +47.80% |
| 2000* | 1,302.75 | -75.28% |
* Partial year: the record begins after the start of 2000; return measured from the first available close.
2026 return is year to date.
AGEN daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 7.52 | 7.79 | 7.38 | 7.67 | +1.72% | |
| 7.57 | 7.66 | 7.24 | 7.54 | -0.40% | |
| 7.28 | 7.62 | 7.27 | 7.57 | +1.07% | |
| 8.49 | 8.49 | 7.47 | 7.49 | -14.20% | |
| 8.54 | 8.76 | 8.11 | 8.73 | +4.43% | |
| 8.36 | 8.61 | 8.08 | 8.36 | +0.36% | |
| 9.95 | 9.99 | 8.28 | 8.33 | -16.11% | |
| 9.92 | 10.31 | 9.62 | 9.93 | +0.40% | |
| 9.66 | 10.06 | 9.43 | 9.89 | +4.88% | |
| 8.71 | 9.71 | 8.47 | 9.43 | +10.42% | |
| 8.57 | 8.68 | 8.40 | 8.54 | +0.47% | |
| 8.32 | 8.60 | 8.20 | 8.50 | +1.19% | |
| 8.70 | 8.70 | 8.39 | 8.40 | -3.45% | |
| 8.26 | 8.82 | 8.16 | 8.70 | +4.44% | |
| 7.80 | 8.60 | 7.60 | 8.33 | +6.11% | |
| 7.48 | 7.88 | 7.33 | 7.85 | +8.73% | |
| 7.31 | 7.40 | 7.09 | 7.22 | +0.14% | |
| 7.25 | 7.33 | 7.06 | 7.21 | +0.70% | |
| 7.05 | 7.19 | 6.81 | 7.16 | +0.42% | |
| 7.03 | 7.18 | 6.82 | 7.13 | +2.74% | |
| 6.93 | 7.02 | 6.70 | 6.94 | +0.73% | |
| 6.76 | 7.04 | 6.66 | 6.89 | +0.44% | |
| 7.60 | 7.61 | 6.78 | 6.86 | -7.67% | |
| 8.14 | 8.18 | 7.42 | 7.43 | -9.83% | |
| 8.14 | 8.38 | 7.99 | 8.24 | 0.00% | |
| 8.12 | 8.31 | 7.98 | 8.24 | +1.85% | |
| 8.07 | 8.28 | 7.69 | 8.09 | +1.25% | |
| 7.56 | 8.00 | 7.54 | 7.99 | +4.99% | |
| 7.68 | 7.76 | 7.50 | 7.61 | -0.65% | |
| 7.98 | 8.07 | 7.61 | 7.66 | -1.92% | |
| 8.28 | 8.52 | 7.78 | 7.81 | -5.33% | |
| 8.30 | 8.40 | 8.03 | 8.25 | -1.32% | |
| 7.80 | 8.50 | 7.80 | 8.36 | +9.00% | |
| 8.07 | 8.07 | 7.60 | 7.67 | -5.19% | |
| 7.58 | 8.35 | 7.58 | 8.09 | +8.01% | |
| 8.22 | 8.25 | 7.31 | 7.49 | -9.32% | |
| 7.66 | 8.73 | 7.62 | 8.26 | +9.69% | |
| 7.13 | 7.65 | 7.08 | 7.53 | +5.31% | |
| 7.30 | 7.31 | 6.96 | 7.15 | -2.32% | |
| 6.93 | 7.46 | 6.83 | 7.32 | +4.57% | |
| 6.85 | 7.03 | 6.71 | 7.00 | +1.45% | |
| 6.91 | 7.20 | 6.83 | 6.90 | +1.02% | |
| 6.84 | 6.90 | 6.42 | 6.83 | -2.43% | |
| 6.83 | 7.09 | 6.36 | 7.00 | +0.57% | |
| 7.52 | 7.55 | 6.92 | 6.96 | -7.08% | |
| 7.67 | 8.85 | 7.32 | 7.49 | -3.73% | |
| 8.35 | 8.52 | 7.69 | 7.78 | -6.27% | |
| 7.85 | 8.38 | 7.75 | 8.30 | +6.14% | |
| 7.65 | 8.09 | 7.50 | 7.82 | +4.27% | |
| 7.79 | 7.98 | 7.32 | 7.50 | -5.18% | |
| 6.77 | 7.99 | 6.51 | 7.91 | +19.31% | |
| 6.61 | 6.95 | 6.48 | 6.63 | +0.45% | |
| 6.06 | 6.64 | 5.88 | 6.60 | +7.67% | |
| 5.99 | 6.20 | 5.87 | 6.13 | +2.51% | |
| 6.20 | 6.23 | 5.81 | 5.98 | -3.39% | |
| 5.53 | 6.23 | 5.46 | 6.19 | +11.93% | |
| 5.57 | 5.89 | 5.50 | 5.53 | -0.90% | |
| 5.00 | 5.90 | 4.99 | 5.58 | +12.27% | |
| 5.06 | 5.47 | 4.94 | 4.97 | -0.80% | |
| 4.91 | 5.14 | 4.78 | 5.01 | +0.20% | |
| 5.00 | 5.28 | 4.67 | 5.00 | -0.20% | |
| 5.19 | 5.19 | 4.66 | 5.01 | -1.38% | |
| 6.12 | 6.28 | 4.99 | 5.08 | -16.99% | |
| 5.42 | 8.70 | 4.91 | 6.12 | +82.69% | |
| 3.24 | 3.39 | 3.10 | 3.35 | +3.40% | |
| 3.25 | 3.35 | 3.19 | 3.24 | -0.31% | |
| 3.47 | 3.63 | 3.25 | 3.25 | -7.14% | |
| 3.36 | 3.58 | 3.25 | 3.50 | +2.64% | |
| 3.50 | 3.55 | 3.41 | 3.41 | -2.29% | |
| 3.40 | 3.52 | 3.37 | 3.49 | +2.35% | |
| 3.06 | 3.43 | 3.06 | 3.41 | +11.44% | |
| 3.18 | 3.20 | 3.02 | 3.06 | -2.86% | |
| 3.03 | 3.23 | 2.96 | 3.15 | +3.96% | |
| 2.88 | 3.10 | 2.87 | 3.03 | +5.21% | |
| 2.97 | 3.05 | 2.85 | 2.88 | -1.37% | |
| 3.07 | 3.13 | 2.91 | 2.92 | -4.89% | |
| 2.99 | 3.18 | 2.99 | 3.07 | +0.99% | |
| 2.99 | 3.10 | 2.98 | 3.04 | +1.33% | |
| 3.00 | 3.10 | 2.91 | 3.00 | +1.35% | |
| 3.02 | 3.05 | 2.86 | 2.96 | -0.67% | |
| 3.26 | 3.39 | 2.97 | 2.98 | -8.31% | |
| 3.36 | 3.44 | 3.24 | 3.25 | -1.52% | |
| 3.40 | 3.45 | 3.29 | 3.30 | -2.65% | |
| 3.09 | 3.42 | 3.04 | 3.39 | +10.42% | |
| 3.11 | 3.17 | 3.06 | 3.07 | -1.29% | |
| 3.20 | 3.31 | 3.11 | 3.11 | -0.96% | |
| 3.30 | 3.32 | 3.12 | 3.14 | -2.79% | |
| 3.38 | 3.38 | 3.19 | 3.23 | -5.00% | |
| 3.23 | 3.48 | 3.23 | 3.40 | +5.59% | |
| 3.36 | 3.43 | 3.21 | 3.22 | -4.73% | |
| 3.44 | 3.52 | 3.36 | 3.38 | -2.87% | |
| 3.52 | 3.53 | 3.33 | 3.48 | -0.57% | |
| 3.41 | 3.50 | 3.30 | 3.50 | +2.94% | |
| 3.41 | 3.45 | 3.29 | 3.40 | -0.29% | |
| 3.36 | 3.53 | 3.34 | 3.41 | +2.71% | |
| 3.14 | 3.42 | 3.14 | 3.32 | +6.75% | |
| 3.30 | 3.36 | 3.05 | 3.11 | -1.58% | |
| 3.12 | 3.21 | 3.08 | 3.16 | +0.32% | |
| 3.12 | 3.25 | 3.12 | 3.15 | +1.94% | |
| 3.20 | 3.21 | 3.02 | 3.09 | -2.22% | |
| 3.56 | 3.56 | 3.07 | 3.16 | -11.73% | |
| 3.52 | 3.60 | 3.42 | 3.58 | 0.00% | |
| 3.47 | 3.62 | 3.37 | 3.58 | +3.17% | |
| 3.41 | 3.58 | 3.39 | 3.47 | +0.87% | |
| 3.25 | 3.45 | 3.21 | 3.44 | +5.52% | |
| 3.61 | 3.67 | 3.20 | 3.26 | -14.66% | |
| 3.77 | 3.93 | 3.71 | 3.82 | +1.87% | |
| 3.90 | 3.90 | 3.66 | 3.75 | -3.60% | |
| 4.20 | 4.24 | 3.85 | 3.89 | -6.71% | |
| 4.06 | 4.27 | 4.05 | 4.17 | +3.73% | |
| 3.84 | 4.04 | 3.79 | 4.02 | +4.69% | |
| 3.87 | 3.88 | 3.78 | 3.84 | -1.79% | |
| 3.89 | 4.00 | 3.77 | 3.91 | +1.82% | |
| 3.87 | 3.87 | 3.64 | 3.84 | -1.29% | |
| 4.06 | 4.20 | 3.87 | 3.89 | -4.89% | |
| 3.97 | 4.57 | 3.93 | 4.09 | +4.87% | |
| 3.76 | 3.97 | 3.68 | 3.90 | +3.72% | |
| 3.94 | 3.97 | 3.75 | 3.76 | -4.57% | |
| 3.99 | 4.11 | 3.88 | 3.94 | +0.77% | |
| 4.44 | 4.44 | 3.91 | 3.91 | -11.54% | |
| 4.55 | 4.70 | 4.36 | 4.42 | -7.72% | |
| 4.70 | 4.80 | 4.52 | 4.79 | +3.23% | |
| 4.70 | 4.80 | 4.57 | 4.64 | -3.93% | |
| 4.77 | 5.08 | 4.56 | 4.83 | +2.33% | |
| 4.27 | 4.79 | 4.25 | 4.72 | +13.73% | |
| 3.91 | 4.30 | 3.90 | 4.15 | +4.80% | |
| 4.59 | 4.67 | 3.86 | 3.96 | -11.01% | |
| 4.19 | 4.51 | 4.09 | 4.45 | +5.95% | |
| 4.19 | 4.27 | 4.04 | 4.20 | +3.45% | |
| 3.77 | 4.14 | 3.58 | 4.06 | +7.69% | |
| 3.37 | 4.00 | 3.35 | 3.77 | +13.21% | |
| 3.33 | 3.41 | 3.24 | 3.33 | -2.06% | |
| 3.40 | 3.50 | 3.38 | 3.40 | +1.80% | |
| 3.25 | 3.44 | 3.25 | 3.34 | +3.09% | |
| 3.39 | 3.39 | 3.23 | 3.24 | -4.42% | |
| 3.44 | 3.47 | 3.34 | 3.39 | -1.45% | |
| 3.50 | 3.52 | 3.41 | 3.44 | -3.37% | |
| 3.60 | 3.68 | 3.54 | 3.56 | 0.00% | |
| 3.68 | 3.70 | 3.51 | 3.56 | -3.52% | |
| 3.78 | 3.86 | 3.62 | 3.69 | -0.54% | |
| 3.83 | 3.83 | 3.65 | 3.71 | -2.62% | |
| 3.70 | 3.87 | 3.62 | 3.81 | +1.33% | |
| 3.98 | 4.08 | 3.65 | 3.76 | -5.76% | |
| 3.34 | 4.10 | 3.30 | 3.99 | +21.28% | |
| 3.12 | 3.41 | 2.92 | 3.29 | +6.13% | |
| 3.02 | 3.18 | 3.02 | 3.10 | +4.03% | |
| 3.26 | 3.31 | 2.97 | 2.98 | -9.97% | |
| 3.39 | 3.39 | 3.21 | 3.31 | -1.78% | |
| 3.21 | 3.55 | 3.21 | 3.37 | +6.98% | |
| 2.95 | 3.17 | 2.90 | 3.15 | +6.42% | |
| 2.92 | 3.05 | 2.92 | 2.96 | +1.37% | |
| 3.14 | 3.19 | 2.91 | 2.92 | -8.75% | |
| 3.21 | 3.27 | 3.10 | 3.20 | +0.63% | |
| 3.26 | 3.28 | 3.14 | 3.18 | -4.79% | |
| 3.20 | 3.36 | 3.15 | 3.34 | +0.30% | |
| 3.26 | 3.34 | 3.23 | 3.33 | -0.89% | |
| 3.22 | 3.38 | 3.14 | 3.36 | +4.02% | |
| 3.22 | 3.29 | 3.16 | 3.23 | +0.31% | |
| 3.06 | 3.35 | 3.02 | 3.22 | +4.89% | |
| 3.03 | 3.09 | 3.00 | 3.07 | +0.33% | |
| 3.19 | 3.25 | 3.03 | 3.06 | -4.67% | |
| 3.06 | 3.21 | 3.02 | 3.21 | +4.22% | |
| 3.03 | 3.13 | 2.94 | 3.08 | +0.98% | |
| 2.92 | 3.07 | 2.90 | 3.05 | +4.45% | |
| 2.83 | 3.01 | 2.83 | 2.92 | +2.46% | |
| 2.99 | 2.99 | 2.76 | 2.85 | -4.36% | |
| 3.07 | 3.08 | 2.88 | 2.98 | -2.93% | |
| 3.03 | 3.15 | 2.97 | 3.07 | +3.02% | |
| 2.91 | 3.01 | 2.84 | 2.98 | +1.36% | |
| 2.78 | 3.01 | 2.78 | 2.94 | +6.14% | |
| 2.85 | 2.88 | 2.71 | 2.77 | -4.15% | |
| 2.91 | 2.96 | 2.77 | 2.89 | -0.34% | |
| 2.90 | 2.93 | 2.81 | 2.90 | +1.40% | |
| 2.85 | 2.97 | 2.80 | 2.86 | +0.70% | |
| 2.94 | 2.95 | 2.81 | 2.84 | -5.02% | |
| 3.16 | 3.16 | 2.96 | 2.99 | -3.86% | |
| 3.20 | 3.21 | 3.08 | 3.11 | -2.51% | |
| 3.03 | 3.20 | 3.00 | 3.19 | +5.63% | |
| 3.23 | 3.23 | 2.95 | 3.02 | -6.79% | |
| 3.40 | 3.40 | 3.22 | 3.24 | -4.14% | |
| 3.41 | 3.54 | 3.34 | 3.38 | -0.59% | |
| 3.42 | 3.55 | 3.26 | 3.40 | +0.89% | |
| 3.30 | 3.39 | 3.12 | 3.37 | +0.90% | |
| 3.67 | 3.76 | 3.31 | 3.34 | -9.24% | |
| 4.69 | 4.83 | 3.61 | 3.68 | -21.37% | |
| 4.59 | 4.87 | 4.57 | 4.68 | +1.52% | |
| 4.27 | 4.69 | 4.15 | 4.61 | +8.47% | |
| 4.00 | 4.31 | 3.83 | 4.25 | +8.70% | |
| 3.80 | 4.00 | 3.80 | 3.91 | +4.27% | |
| 3.74 | 3.85 | 3.61 | 3.75 | +1.35% | |
| 3.47 | 3.85 | 3.46 | 3.70 | +6.63% | |
| 3.25 | 3.57 | 3.25 | 3.47 | +7.76% | |
| 3.26 | 3.34 | 3.18 | 3.22 | -0.31% | |
| 3.18 | 3.23 | 3.09 | 3.23 | +2.87% | |
| 3.10 | 3.20 | 3.06 | 3.14 | +0.64% | |
| 3.17 | 3.23 | 3.01 | 3.12 | -2.19% | |
| 3.27 | 3.30 | 3.08 | 3.19 | -3.63% | |
| 3.33 | 3.36 | 3.20 | 3.31 | -1.19% | |
| 3.27 | 3.41 | 3.27 | 3.35 | +1.21% | |
| 3.51 | 3.52 | 3.26 | 3.31 | -5.70% | |
| 3.41 | 3.56 | 3.38 | 3.51 | +2.03% | |
| 3.50 | 4.00 | 3.01 | 3.44 | -1.99% | |
| 3.60 | 3.72 | 3.51 | 3.51 | -2.23% | |
| 3.73 | 3.79 | 3.58 | 3.59 | -3.49% | |
| 3.69 | 3.77 | 3.63 | 3.72 | +0.27% | |
| 3.82 | 3.85 | 3.69 | 3.71 | -2.11% | |
| 4.07 | 4.07 | 3.79 | 3.79 | -7.11% | |
| 4.09 | 4.12 | 4.00 | 4.08 | -0.24% | |
| 3.91 | 4.10 | 3.82 | 4.09 | +4.34% | |
| 4.02 | 4.04 | 3.89 | 3.92 | -2.73% | |
| 3.97 | 4.13 | 3.97 | 4.03 | +2.54% | |
| 4.06 | 4.09 | 3.92 | 3.93 | -3.20% | |
| 4.17 | 4.17 | 3.97 | 4.06 | -2.64% | |
| 4.17 | 4.26 | 4.13 | 4.17 | 0.00% | |
| 4.34 | 4.34 | 4.05 | 4.17 | -3.47% | |
| 4.45 | 4.50 | 4.25 | 4.32 | -5.26% | |
| 4.60 | 4.64 | 4.52 | 4.56 | +0.22% | |
| 4.40 | 4.58 | 4.34 | 4.55 | +3.88% | |
| 4.29 | 4.48 | 4.29 | 4.38 | +2.10% | |
| 4.24 | 4.47 | 4.23 | 4.29 | +1.66% | |
| 4.27 | 4.30 | 4.11 | 4.22 | -1.63% | |
| 4.28 | 4.49 | 4.19 | 4.29 | +2.14% | |
| 4.22 | 4.30 | 4.12 | 4.20 | -0.71% | |
| 4.32 | 4.38 | 4.12 | 4.23 | -2.08% | |
| 4.36 | 4.60 | 4.28 | 4.32 | -0.46% | |
| 4.21 | 4.45 | 4.17 | 4.34 | +0.23% | |
| 4.39 | 4.42 | 4.25 | 4.33 | -2.26% | |
| 4.25 | 4.67 | 4.22 | 4.43 | +3.75% | |
| 4.18 | 4.40 | 4.18 | 4.27 | +1.43% | |
| 3.98 | 4.69 | 3.97 | 4.21 | +5.78% | |
| 3.84 | 3.98 | 3.70 | 3.98 | +3.65% | |
| 3.70 | 3.89 | 3.70 | 3.84 | +4.07% | |
| 3.72 | 3.84 | 3.63 | 3.69 | -1.07% | |
| 3.87 | 3.94 | 3.71 | 3.73 | -6.05% | |
| 3.97 | 4.00 | 3.85 | 3.97 | 0.00% | |
| 3.99 | 4.11 | 3.90 | 3.97 | +4.20% | |
| 3.85 | 3.92 | 3.77 | 3.81 | -1.04% | |
| 4.03 | 4.03 | 3.83 | 3.85 | -4.70% | |
| 4.14 | 4.15 | 3.97 | 4.04 | -2.65% | |
| 4.09 | 4.22 | 4.09 | 4.15 | +0.24% | |
| 4.24 | 4.24 | 3.95 | 4.14 | -0.96% | |
| 4.05 | 4.24 | 4.04 | 4.18 | +3.21% | |
| 4.25 | 4.26 | 4.00 | 4.05 | -5.59% | |
| 4.42 | 4.46 | 4.13 | 4.29 | -2.94% | |
| 3.97 | 4.60 | 3.95 | 4.42 | +13.92% | |
| 4.00 | 4.10 | 3.85 | 3.88 | -2.76% | |
| 4.05 | 4.18 | 3.95 | 3.99 | +0.25% | |
| 3.99 | 4.01 | 3.84 | 3.98 | +0.25% | |
| 3.99 | 3.99 | 3.84 | 3.97 | -1.98% | |
| 3.98 | 4.07 | 3.92 | 4.05 | +2.02% | |
| 4.26 | 4.26 | 3.95 | 3.97 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the AGEN chart for longer ranges.