Attovia Therapeutics Stock Price History
NASDAQ: ATTOHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
ATTO price history at a glance
The price history for Attovia Therapeutics (ATTO) on this page begins on August 3, 2026, when the stock closed at $20.17; it most recently closed at $16.21 on October 5, 2026. The highest price in this record is $28.00, reached on September 7, 2026; the latest close is 42.1% below that peak. 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 2026
- $28.00
- Date of high
- Sep 7, 2026
- Low since 2026
- $15.48
- Date of low
- Oct 5, 2026
- 52-week high
- $28.00
- 52-week low
- $15.48
- IPO year
- 2026
- Last close
- $16.21
ATTO returns
1 week
-5.59%
1 month
-29.09%
ATTO price return, excluding dividends.
ATTO daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 16.44 | 16.94 | 15.98 | 16.21 | -0.61% | |
| 16.27 | 16.39 | 15.48 | 16.31 | -0.67% | |
| 17.40 | 17.54 | 16.33 | 16.42 | -6.17% | |
| 18.00 | 18.38 | 17.27 | 17.50 | -2.78% | |
| 17.22 | 18.25 | 17.10 | 18.00 | +4.83% | |
| 17.73 | 18.50 | 17.00 | 17.17 | -3.49% | |
| 17.26 | 18.28 | 17.15 | 17.79 | +3.79% | |
| 18.19 | 18.34 | 16.79 | 17.14 | -5.62% | |
| 17.46 | 18.55 | 17.38 | 18.16 | +2.89% | |
| 17.56 | 18.05 | 16.62 | 17.65 | -0.73% | |
| 18.10 | 19.35 | 17.61 | 17.78 | -2.15% | |
| 18.48 | 18.84 | 17.83 | 18.17 | -1.89% | |
| 20.71 | 21.35 | 18.25 | 18.52 | -11.09% | |
| 21.31 | 21.73 | 19.86 | 20.83 | -2.21% | |
| 22.31 | 22.46 | 20.21 | 21.30 | -3.79% | |
| 22.51 | 25.00 | 22.01 | 22.14 | -2.60% | |
| 22.24 | 24.39 | 22.24 | 22.73 | +2.16% | |
| 24.12 | 24.58 | 21.24 | 22.25 | -6.12% | |
| 24.40 | 25.46 | 23.47 | 23.70 | -3.34% | |
| 22.28 | 25.30 | 22.28 | 24.52 | +7.59% | |
| 22.43 | 24.22 | 22.00 | 22.79 | +1.15% | |
| 22.51 | 24.11 | 22.13 | 22.53 | -1.44% | |
| 23.70 | 26.33 | 22.33 | 22.86 | -3.38% | |
| 26.02 | 28.00 | 23.61 | 23.66 | -7.40% | |
| 24.44 | 27.66 | 24.44 | 25.55 | +5.58% | |
| 23.46 | 26.07 | 23.46 | 24.20 | +4.63% | |
| 22.40 | 23.49 | 21.70 | 23.13 | +4.10% | |
| 21.61 | 22.66 | 20.20 | 22.22 | +3.83% | |
| 20.74 | 21.81 | 19.87 | 21.40 | +3.38% | |
| 21.37 | 21.60 | 20.02 | 20.70 | -3.54% | |
| 19.66 | 21.50 | 19.10 | 21.46 | +9.77% | |
| 19.43 | 20.35 | 18.85 | 19.55 | +1.24% | |
| 20.83 | 21.96 | 19.11 | 19.31 | -6.35% | |
| 20.80 | 20.96 | 19.74 | 20.62 | -0.87% | |
| 20.21 | 21.01 | 19.70 | 20.80 | +2.92% | |
| 21.86 | 22.81 | 20.21 | 20.21 | -8.72% | |
| 23.35 | 24.32 | 21.02 | 22.14 | -4.73% | |
| 23.26 | 23.75 | 20.96 | 23.24 | +2.33% | |
| 19.85 | 22.71 | 19.85 | 22.71 | +14.35% | |
| 19.12 | 19.94 | 18.20 | 19.86 | +3.55% | |
| 18.06 | 19.36 | 17.97 | 19.18 | +6.20% | |
| 18.68 | 19.30 | 16.15 | 18.06 | -3.16% | |
| 19.84 | 20.50 | 18.65 | 18.65 | -6.00% | |
| 20.17 | 20.17 | 18.50 | 19.84 | -1.64% | |
| 20.11 | 20.94 | 18.64 | 20.17 | -1.03% | |
| 22.05 | 22.05 | 19.63 | 20.38 | -6.94% | |
| 21.00 | 22.79 | 20.21 | 21.90 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the ATTO chart for longer ranges.