Kalaris Therapeutics Stock Price History
NASDAQ: KLRSHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
2.36-0.14 (-5.60%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
KLRS price history at a glance
The price history for Kalaris Therapeutics (KLRS) on this page begins on July 27, 2020, when the stock closed at $572.70; it most recently closed at $2.36 on October 5, 2026. The highest price in this record is $1,126.08, reached on December 21, 2020; the latest close is 99.8% below that peak. Across the 5 complete calendar years in the table, KLRS finished higher in 0 and lower in 5. Its best year was 2025 (-20.5%) and its worst was 2023 (-86.7%).
Over roughly 6 years the share price changed -99.6%, a -58.8% compound annual price return (excluding dividends). In the last 12 months alone, KLRS has lost 49.0%. 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 2020
- $1,126.08
- Date of high
- Dec 21, 2020
- Low since 2020
- $2.14
- Date of low
- Aug 11, 2025
- 52-week high
- $11.88
- 52-week low
- $2.35
- IPO year
- 2020
- Last close
- $2.36
KLRS returns
1 week
-12.59%
1 month
-31.99%
3 months
-46.85%
6 months
-62.54%
Year to date
-72.04%
1 year
-48.97%
3 years
-94.03%
5 years
-99.54%
KLRS price return, excluding dividends.
KLRS annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 2.36 | -71.57% |
| 2025 | 8.30 | -20.51% |
| 2024 | 10.44 | -33.24% |
| 2023 | 15.64 | -86.74% |
| 2022 | 117.99 | -60.36% |
| 2021 | 297.62 | -66.34% |
| 2020* | 884.12 | +54.38% |
* Partial year: the record begins after the start of 2020; return measured from the first available close.
2026 return is year to date.
KLRS daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 2.46 | 2.55 | 2.36 | 2.36 | -5.60% | |
| 2.60 | 2.60 | 2.35 | 2.50 | -2.34% | |
| 2.59 | 2.69 | 2.53 | 2.56 | -3.76% | |
| 2.90 | 2.93 | 2.61 | 2.66 | -6.01% | |
| 2.72 | 2.89 | 2.58 | 2.83 | +4.81% | |
| 2.90 | 2.90 | 2.51 | 2.70 | -5.26% | |
| 2.88 | 2.89 | 2.76 | 2.85 | -1.38% | |
| 2.87 | 2.97 | 2.75 | 2.89 | -0.34% | |
| 2.84 | 2.91 | 2.84 | 2.90 | +1.93% | |
| 2.91 | 2.97 | 2.81 | 2.85 | -2.57% | |
| 3.02 | 3.09 | 2.91 | 2.92 | -4.89% | |
| 3.13 | 3.16 | 3.02 | 3.07 | -1.60% | |
| 3.20 | 3.21 | 3.12 | 3.12 | -3.70% | |
| 3.23 | 3.29 | 3.16 | 3.24 | -0.15% | |
| 3.20 | 3.30 | 3.09 | 3.25 | +1.41% | |
| 3.18 | 3.23 | 3.04 | 3.20 | +1.27% | |
| 3.20 | 3.27 | 3.13 | 3.16 | -0.63% | |
| 3.15 | 3.25 | 3.10 | 3.18 | -0.63% | |
| 3.35 | 3.36 | 3.20 | 3.20 | -3.03% | |
| 3.41 | 3.45 | 3.25 | 3.30 | -2.37% | |
| 3.39 | 3.44 | 3.27 | 3.38 | +2.42% | |
| 3.55 | 3.66 | 3.30 | 3.30 | -4.90% | |
| 3.66 | 3.68 | 3.45 | 3.47 | -4.41% | |
| 3.88 | 3.90 | 3.60 | 3.63 | -6.92% | |
| 3.91 | 3.95 | 3.82 | 3.90 | -1.02% | |
| 3.97 | 4.04 | 3.91 | 3.94 | +1.03% | |
| 3.97 | 4.14 | 3.90 | 3.90 | -0.51% | |
| 3.96 | 4.00 | 3.86 | 3.92 | -2.97% | |
| 3.99 | 4.04 | 3.83 | 4.04 | +0.25% | |
| 4.12 | 4.15 | 3.89 | 4.03 | -1.71% | |
| 4.08 | 4.19 | 4.00 | 4.10 | +0.49% | |
| 4.24 | 4.31 | 3.99 | 4.08 | -2.86% | |
| 4.04 | 4.25 | 4.04 | 4.20 | +2.44% | |
| 4.13 | 4.19 | 3.94 | 4.10 | -1.20% | |
| 4.10 | 4.31 | 3.99 | 4.15 | +0.73% | |
| 4.20 | 4.20 | 3.97 | 4.12 | -1.20% | |
| 4.10 | 4.33 | 3.98 | 4.17 | +3.47% | |
| 4.00 | 4.20 | 3.89 | 4.03 | +1.77% | |
| 4.05 | 4.17 | 3.91 | 3.96 | -2.94% | |
| 4.02 | 4.15 | 3.88 | 4.08 | +5.15% | |
| 3.92 | 4.06 | 3.84 | 3.88 | -1.52% | |
| 4.07 | 4.18 | 3.94 | 3.94 | -0.76% | |
| 3.95 | 4.14 | 3.94 | 3.97 | +0.76% | |
| 4.14 | 4.17 | 3.89 | 3.94 | -3.19% | |
| 4.27 | 4.31 | 4.04 | 4.07 | -2.86% | |
| 4.19 | 4.31 | 4.10 | 4.19 | 0.00% | |
| 4.32 | 4.38 | 4.06 | 4.19 | -3.01% | |
| 4.02 | 4.40 | 4.02 | 4.32 | +6.67% | |
| 3.57 | 4.09 | 3.46 | 4.05 | +15.38% | |
| 3.43 | 3.61 | 3.40 | 3.51 | +0.86% | |
| 3.37 | 3.51 | 3.03 | 3.48 | +2.35% | |
| 3.32 | 3.46 | 3.23 | 3.40 | +1.80% | |
| 3.62 | 3.69 | 3.27 | 3.34 | -6.70% | |
| 3.75 | 3.84 | 3.50 | 3.58 | -4.02% | |
| 3.87 | 3.97 | 3.52 | 3.73 | -4.85% | |
| 3.93 | 4.19 | 3.82 | 3.92 | -3.69% | |
| 4.00 | 4.10 | 3.91 | 4.07 | +0.74% | |
| 3.95 | 4.05 | 3.53 | 4.04 | +1.00% | |
| 4.25 | 4.59 | 3.95 | 4.00 | -8.68% | |
| 4.43 | 6.25 | 4.30 | 4.38 | -4.99% | |
| 4.77 | 4.77 | 4.42 | 4.61 | -4.36% | |
| 4.58 | 4.88 | 4.40 | 4.82 | +5.93% | |
| 4.43 | 4.62 | 4.30 | 4.55 | +2.94% | |
| 4.41 | 4.50 | 4.24 | 4.42 | -0.45% | |
| 4.54 | 4.54 | 4.33 | 4.44 | -1.11% | |
| 4.73 | 4.73 | 4.46 | 4.49 | -4.67% | |
| 4.89 | 4.92 | 4.48 | 4.71 | -2.48% | |
| 4.81 | 4.83 | 4.61 | 4.83 | +3.87% | |
| 4.76 | 4.91 | 4.57 | 4.65 | -2.11% | |
| 4.55 | 4.80 | 4.38 | 4.75 | +4.86% | |
| 4.33 | 4.60 | 4.15 | 4.53 | +11.30% | |
| 4.24 | 4.34 | 3.90 | 4.07 | -3.44% | |
| 4.28 | 4.38 | 4.16 | 4.22 | -2.43% | |
| 4.43 | 4.49 | 4.25 | 4.32 | +0.47% | |
| 4.37 | 4.59 | 4.23 | 4.30 | -2.27% | |
| 4.49 | 4.61 | 4.25 | 4.40 | -1.57% | |
| 4.38 | 4.55 | 4.31 | 4.47 | +1.59% | |
| 4.68 | 4.70 | 4.39 | 4.40 | -6.78% | |
| 4.57 | 4.80 | 4.55 | 4.72 | +3.74% | |
| 4.69 | 4.75 | 4.46 | 4.55 | +4.12% | |
| 4.42 | 4.57 | 4.29 | 4.37 | +2.34% | |
| 4.54 | 4.65 | 4.27 | 4.27 | -1.39% | |
| 4.38 | 4.68 | 4.28 | 4.33 | -0.69% | |
| 4.16 | 4.42 | 4.10 | 4.36 | +4.81% | |
| 4.06 | 4.27 | 4.04 | 4.16 | +1.84% | |
| 4.26 | 4.26 | 4.02 | 4.09 | -2.04% | |
| 4.44 | 4.54 | 4.15 | 4.17 | -6.08% | |
| 4.66 | 4.66 | 4.40 | 4.44 | -4.72% | |
| 4.72 | 4.83 | 4.66 | 4.66 | -1.27% | |
| 4.66 | 4.97 | 4.66 | 4.72 | +1.51% | |
| 4.92 | 4.92 | 4.56 | 4.65 | -5.10% | |
| 5.26 | 5.28 | 4.85 | 4.90 | -7.02% | |
| 5.21 | 5.38 | 5.11 | 5.27 | +1.74% | |
| 5.24 | 5.60 | 5.09 | 5.18 | -1.15% | |
| 5.30 | 5.44 | 5.05 | 5.24 | +0.58% | |
| 5.48 | 5.60 | 5.16 | 5.21 | +5.89% | |
| 5.08 | 5.22 | 4.71 | 4.92 | -3.91% | |
| 4.75 | 5.15 | 4.75 | 5.12 | +6.00% | |
| 4.67 | 4.91 | 4.56 | 4.83 | +2.77% | |
| 4.61 | 4.84 | 4.61 | 4.70 | -0.84% | |
| 4.89 | 5.05 | 4.52 | 4.74 | -3.27% | |
| 5.29 | 5.29 | 4.90 | 4.90 | -6.13% | |
| 4.90 | 5.39 | 4.83 | 5.22 | +8.07% | |
| 4.66 | 4.91 | 4.52 | 4.83 | +0.84% | |
| 4.74 | 4.84 | 4.52 | 4.79 | +1.27% | |
| 5.02 | 5.06 | 4.69 | 4.73 | -6.89% | |
| 5.17 | 5.24 | 4.99 | 5.08 | -1.36% | |
| 5.06 | 5.18 | 4.96 | 5.15 | +1.78% | |
| 5.36 | 5.37 | 5.06 | 5.06 | -4.53% | |
| 5.51 | 5.62 | 5.20 | 5.30 | -4.16% | |
| 5.49 | 5.67 | 5.44 | 5.53 | +1.28% | |
| 5.53 | 5.71 | 5.44 | 5.46 | -1.09% | |
| 5.67 | 5.73 | 5.44 | 5.52 | +0.18% | |
| 5.65 | 5.75 | 5.45 | 5.51 | -2.22% | |
| 6.00 | 6.03 | 5.48 | 5.64 | -6.40% | |
| 6.09 | 6.13 | 6.02 | 6.02 | -1.47% | |
| 6.07 | 6.26 | 6.05 | 6.11 | +0.16% | |
| 6.33 | 6.49 | 6.00 | 6.10 | -3.63% | |
| 6.27 | 6.62 | 6.20 | 6.33 | +0.80% | |
| 6.54 | 6.62 | 6.24 | 6.28 | -4.85% | |
| 6.20 | 6.68 | 6.14 | 6.60 | +4.43% | |
| 6.68 | 6.68 | 6.11 | 6.32 | -4.10% | |
| 6.06 | 6.68 | 6.00 | 6.59 | +12.27% | |
| 5.79 | 5.99 | 5.42 | 5.87 | +0.86% | |
| 6.29 | 6.37 | 5.66 | 5.82 | -7.77% | |
| 6.16 | 6.46 | 6.03 | 6.31 | +0.16% | |
| 5.86 | 6.38 | 5.78 | 6.30 | +3.79% | |
| 6.40 | 6.64 | 5.83 | 6.07 | -4.26% | |
| 6.73 | 7.14 | 6.23 | 6.34 | -1.86% | |
| 6.24 | 6.75 | 6.11 | 6.46 | +3.03% | |
| 5.84 | 6.32 | 5.83 | 6.27 | +8.29% | |
| 5.75 | 6.10 | 5.53 | 5.79 | -2.44% | |
| 6.18 | 6.18 | 5.66 | 5.94 | +2.86% | |
| 5.25 | 6.18 | 5.25 | 5.77 | +8.87% | |
| 5.43 | 5.66 | 5.24 | 5.30 | -1.67% | |
| 5.86 | 5.99 | 5.24 | 5.39 | -7.39% | |
| 5.98 | 6.16 | 5.69 | 5.82 | -4.82% | |
| 6.24 | 6.70 | 5.96 | 6.12 | -1.37% | |
| 6.50 | 6.81 | 6.20 | 6.20 | -4.62% | |
| 6.65 | 6.85 | 6.46 | 6.50 | -1.07% | |
| 6.72 | 6.92 | 6.55 | 6.57 | -3.52% | |
| 7.53 | 7.60 | 6.72 | 6.81 | -9.56% | |
| 8.50 | 8.62 | 7.53 | 7.53 | -11.62% | |
| 8.81 | 9.29 | 8.08 | 8.52 | -3.29% | |
| 8.96 | 8.96 | 8.20 | 8.81 | +1.61% | |
| 9.06 | 9.07 | 8.55 | 8.67 | -5.45% | |
| 9.35 | 9.57 | 8.67 | 9.17 | -0.43% | |
| 9.96 | 9.96 | 9.14 | 9.21 | -7.53% | |
| 9.82 | 10.00 | 9.48 | 9.96 | -0.40% | |
| 9.65 | 10.19 | 9.30 | 10.00 | +1.83% | |
| 9.46 | 10.42 | 9.35 | 9.82 | +1.50% | |
| 9.31 | 9.75 | 8.85 | 9.68 | +6.55% | |
| 9.50 | 10.09 | 8.85 | 9.08 | -3.61% | |
| 9.98 | 10.56 | 9.26 | 9.42 | -9.60% | |
| 10.19 | 10.69 | 10.10 | 10.42 | -0.38% | |
| 10.39 | 10.65 | 10.10 | 10.46 | -0.95% | |
| 10.56 | 10.80 | 10.31 | 10.56 | -0.66% | |
| 11.00 | 11.02 | 9.90 | 10.63 | -3.10% | |
| 10.67 | 11.22 | 10.55 | 10.97 | +1.86% | |
| 10.50 | 11.02 | 9.81 | 10.77 | +7.70% | |
| 11.04 | 11.04 | 9.97 | 10.00 | -8.93% | |
| 10.23 | 11.02 | 10.00 | 10.98 | +7.23% | |
| 8.48 | 10.43 | 8.48 | 10.24 | +23.90% | |
| 9.96 | 9.96 | 8.08 | 8.27 | -4.45% | |
| 9.02 | 9.27 | 8.54 | 8.65 | -3.67% | |
| 9.63 | 9.90 | 8.80 | 8.98 | -6.85% | |
| 10.14 | 10.28 | 8.85 | 9.64 | -3.79% | |
| 9.05 | 10.27 | 8.92 | 10.02 | +10.72% | |
| 8.35 | 9.29 | 8.34 | 9.05 | +8.51% | |
| 8.37 | 8.75 | 8.29 | 8.34 | -0.12% | |
| 8.89 | 8.89 | 8.25 | 8.35 | -5.44% | |
| 9.07 | 9.36 | 8.41 | 8.83 | -3.39% | |
| 9.16 | 9.48 | 9.06 | 9.14 | +0.33% | |
| 8.75 | 9.15 | 8.75 | 9.11 | +2.59% | |
| 9.01 | 9.33 | 8.80 | 8.88 | -3.48% | |
| 9.41 | 9.61 | 9.09 | 9.20 | -2.65% | |
| 9.61 | 9.70 | 8.78 | 9.45 | -1.66% | |
| 9.79 | 10.47 | 9.61 | 9.61 | -2.44% | |
| 9.85 | 9.88 | 9.55 | 9.85 | +0.51% | |
| 9.84 | 9.88 | 9.62 | 9.80 | +0.20% | |
| 9.89 | 9.97 | 9.12 | 9.78 | -0.10% | |
| 9.81 | 10.00 | 9.76 | 9.79 | -0.20% | |
| 9.56 | 9.99 | 9.04 | 9.81 | +0.72% | |
| 8.70 | 9.96 | 8.60 | 9.74 | +9.93% | |
| 9.16 | 9.37 | 8.80 | 8.86 | -4.11% | |
| 9.35 | 9.39 | 8.74 | 9.24 | 0.00% | |
| 8.85 | 9.46 | 8.69 | 9.24 | +4.52% | |
| 9.76 | 9.97 | 8.72 | 8.84 | -9.61% | |
| 8.37 | 10.24 | 8.30 | 9.78 | +18.40% | |
| 8.82 | 8.96 | 8.26 | 8.26 | -5.71% | |
| 8.54 | 9.09 | 8.40 | 8.76 | +6.05% | |
| 8.14 | 8.42 | 8.03 | 8.26 | +0.98% | |
| 8.43 | 8.88 | 7.92 | 8.18 | -1.45% | |
| 8.42 | 8.53 | 8.04 | 8.30 | -1.66% | |
| 8.38 | 8.89 | 8.31 | 8.44 | +0.72% | |
| 9.09 | 9.45 | 8.32 | 8.38 | -8.21% | |
| 9.15 | 9.34 | 8.41 | 9.13 | -1.35% | |
| 10.20 | 10.20 | 9.12 | 9.26 | -3.39% | |
| 9.66 | 9.72 | 9.39 | 9.58 | -0.83% | |
| 10.11 | 11.00 | 9.51 | 9.66 | -3.98% | |
| 9.18 | 10.23 | 9.18 | 10.06 | +10.19% | |
| 10.36 | 10.50 | 9.00 | 9.13 | -12.38% | |
| 10.84 | 11.88 | 9.98 | 10.42 | 0.00% | |
| 8.65 | 10.98 | 8.30 | 10.42 | +20.32% | |
| 8.45 | 8.84 | 8.30 | 8.66 | +1.88% | |
| 8.89 | 8.95 | 8.29 | 8.50 | -4.17% | |
| 8.45 | 8.87 | 7.82 | 8.87 | +6.48% | |
| 7.57 | 8.61 | 7.45 | 8.33 | +10.04% | |
| 7.11 | 7.70 | 7.10 | 7.57 | +6.32% | |
| 6.17 | 7.60 | 6.17 | 7.12 | +15.58% | |
| 5.92 | 6.25 | 5.58 | 6.16 | +4.67% | |
| 5.87 | 6.27 | 5.82 | 5.89 | -0.59% | |
| 5.54 | 6.00 | 5.33 | 5.92 | +6.86% | |
| 5.48 | 5.60 | 5.35 | 5.54 | +1.28% | |
| 5.47 | 5.80 | 5.10 | 5.47 | +0.37% | |
| 5.97 | 6.11 | 5.40 | 5.45 | -12.66% | |
| 6.54 | 6.54 | 5.66 | 6.24 | -3.11% | |
| 6.36 | 6.54 | 6.07 | 6.44 | +2.88% | |
| 6.50 | 6.76 | 6.10 | 6.26 | -2.95% | |
| 7.07 | 7.07 | 6.37 | 6.45 | -7.99% | |
| 6.91 | 7.07 | 6.04 | 7.01 | +1.59% | |
| 6.93 | 7.14 | 6.54 | 6.90 | +3.29% | |
| 6.45 | 6.98 | 6.08 | 6.68 | +3.57% | |
| 5.49 | 6.49 | 5.23 | 6.45 | +19.00% | |
| 5.47 | 5.68 | 5.31 | 5.42 | -0.73% | |
| 5.10 | 5.49 | 5.00 | 5.46 | +2.44% | |
| 4.87 | 5.45 | 4.87 | 5.33 | +7.46% | |
| 4.86 | 5.11 | 4.73 | 4.96 | -2.17% | |
| 4.84 | 5.24 | 4.84 | 5.07 | +5.63% | |
| 4.75 | 5.07 | 4.50 | 4.80 | +1.05% | |
| 4.69 | 4.83 | 4.51 | 4.75 | +0.42% | |
| 5.00 | 5.15 | 4.54 | 4.73 | -5.40% | |
| 4.73 | 5.03 | 4.70 | 5.00 | +6.16% | |
| 4.82 | 4.99 | 4.67 | 4.71 | -5.61% | |
| 5.08 | 5.45 | 4.78 | 4.99 | -0.80% | |
| 4.76 | 5.12 | 4.71 | 5.03 | +6.12% | |
| 4.82 | 4.92 | 4.70 | 4.74 | -2.67% | |
| 4.98 | 5.24 | 4.71 | 4.87 | -2.60% | |
| 4.90 | 5.30 | 4.71 | 5.00 | +2.88% | |
| 4.76 | 4.96 | 4.60 | 4.86 | +1.89% | |
| 4.85 | 4.98 | 4.75 | 4.77 | -2.45% | |
| 4.41 | 5.05 | 4.40 | 4.89 | +11.64% | |
| 4.70 | 4.70 | 4.27 | 4.38 | -7.40% | |
| 4.90 | 4.98 | 4.64 | 4.73 | -3.47% | |
| 4.52 | 5.07 | 4.52 | 4.90 | +5.83% | |
| 4.83 | 4.91 | 4.50 | 4.63 | -3.34% | |
| 4.91 | 5.00 | 4.74 | 4.79 | -2.84% | |
| 5.12 | 5.24 | 4.73 | 4.93 | -3.33% | |
| 4.84 | 5.24 | 4.64 | 5.10 | +7.14% | |
| 4.45 | 4.98 | 4.29 | 4.76 | +6.97% | |
| 4.70 | 4.90 | 4.35 | 4.45 | -3.78% | |
| 6.54 | 6.66 | 4.34 | 4.63 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the KLRS chart for longer ranges.