aTyr Pharma Stock Price History
NASDAQ: ATYRHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
0.2462-0.0091 (-3.56%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
ATYR price history at a glance
The price history for aTyr Pharma (ATYR) on this page begins on May 4, 2015, when the stock closed at $269.78; it most recently closed at $0.2462 on October 5, 2026. The highest price in this record is $396.06, reached on June 1, 2015; the latest close is 99.9% below that peak. Across the 10 complete calendar years in the table, ATYR finished higher in 3 and lower in 7. Its best year was 2024 (+182.3%) and its worst was 2018 (-84.9%).
Over roughly 11 years the share price changed -99.9%, a -45.8% compound annual price return (excluding dividends). In the last 12 months alone, ATYR has lost 74.2%. 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 2015
- $396.06
- Date of high
- Jun 1, 2015
- Low since 2015
- $0.246
- Date of low
- Oct 5, 2026
- 52-week high
- $1.11
- 52-week low
- $0.246
- IPO year
- 2015
- Last close
- $0.2462
ATYR returns
1 week
-14.22%
1 month
-45.89%
3 months
-54.74%
6 months
-70.41%
Year to date
-68.56%
1 year
-74.17%
3 years
-82.29%
5 years
-97.17%
ATYR price return, excluding dividends.
ATYR annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 0.2462 | -67.56% |
| 2025 | 0.759 | -80.93% |
| 2024 | 3.98 | +182.27% |
| 2023 | 1.41 | -35.62% |
| 2022 | 2.19 | -70.68% |
| 2021 | 7.47 | +92.53% |
| 2020 | 3.88 | -8.92% |
| 2019 | 4.26 | -42.37% |
| 2018 | 7.39 | -84.91% |
| 2017 | 49.00 | +62.79% |
| 2016 | 30.10 | -78.13% |
| 2015* | 137.62 | -48.99% |
* Partial year: the record begins after the start of 2015; return measured from the first available close.
2026 return is year to date.
ATYR daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 0.2553 | 0.2591 | 0.246 | 0.2462 | -3.56% | |
| 0.27 | 0.273 | 0.25 | 0.2553 | -8.26% | |
| 0.279 | 0.2888 | 0.272 | 0.2783 | -1.66% | |
| 0.29 | 0.296 | 0.281 | 0.283 | -2.41% | |
| 0.283 | 0.294 | 0.265 | 0.29 | +1.05% | |
| 0.287 | 0.296 | 0.282 | 0.287 | -2.38% | |
| 0.305 | 0.31 | 0.29 | 0.294 | -2.97% | |
| 0.308 | 0.32 | 0.30 | 0.303 | -1.62% | |
| 0.292 | 0.318 | 0.272 | 0.308 | +3.36% | |
| 0.294 | 0.316 | 0.292 | 0.298 | -2.30% | |
| 0.309 | 0.317 | 0.282 | 0.305 | -9.76% | |
| 0.404 | 0.407 | 0.324 | 0.338 | -9.87% | |
| 0.36 | 0.38 | 0.35 | 0.375 | +5.34% | |
| 0.382 | 0.382 | 0.351 | 0.356 | -4.56% | |
| 0.38 | 0.38 | 0.369 | 0.373 | +2.75% | |
| 0.37 | 0.388 | 0.36 | 0.363 | -3.71% | |
| 0.395 | 0.398 | 0.37 | 0.377 | -1.82% | |
| 0.396 | 0.396 | 0.379 | 0.384 | -1.29% | |
| 0.394 | 0.401 | 0.375 | 0.389 | 0.00% | |
| 0.42 | 0.434 | 0.382 | 0.389 | -9.53% | |
| 0.436 | 0.446 | 0.422 | 0.43 | -0.46% | |
| 0.469 | 0.469 | 0.43 | 0.432 | -5.05% | |
| 0.48 | 0.486 | 0.451 | 0.455 | -5.41% | |
| 0.51 | 0.51 | 0.48 | 0.481 | -3.22% | |
| 0.49 | 0.508 | 0.487 | 0.497 | -1.39% | |
| 0.505 | 0.509 | 0.48 | 0.504 | +2.23% | |
| 0.482 | 0.509 | 0.482 | 0.493 | +3.35% | |
| 0.53 | 0.534 | 0.475 | 0.477 | -10.34% | |
| 0.54 | 0.543 | 0.501 | 0.532 | -1.48% | |
| 0.56 | 0.565 | 0.53 | 0.54 | -2.70% | |
| 0.562 | 0.562 | 0.545 | 0.555 | +0.73% | |
| 0.573 | 0.573 | 0.531 | 0.551 | -3.33% | |
| 0.539 | 0.57 | 0.532 | 0.57 | +7.55% | |
| 0.511 | 0.534 | 0.49 | 0.53 | +5.58% | |
| 0.51 | 0.534 | 0.50 | 0.502 | -0.20% | |
| 0.517 | 0.524 | 0.50 | 0.503 | -5.63% | |
| 0.512 | 0.538 | 0.503 | 0.533 | +5.75% | |
| 0.53 | 0.545 | 0.503 | 0.504 | -2.89% | |
| 0.541 | 0.57 | 0.518 | 0.519 | -7.16% | |
| 0.56 | 0.587 | 0.55 | 0.559 | +1.08% | |
| 0.55 | 0.60 | 0.544 | 0.553 | +2.41% | |
| 0.544 | 0.557 | 0.525 | 0.54 | +1.12% | |
| 0.54 | 0.542 | 0.514 | 0.534 | +0.95% | |
| 0.535 | 0.538 | 0.506 | 0.529 | +3.52% | |
| 0.496 | 0.52 | 0.496 | 0.511 | +1.79% | |
| 0.529 | 0.529 | 0.49 | 0.502 | -5.10% | |
| 0.529 | 0.53 | 0.503 | 0.529 | 0.00% | |
| 0.51 | 0.535 | 0.506 | 0.529 | +7.52% | |
| 0.493 | 0.51 | 0.48 | 0.492 | +1.23% | |
| 0.495 | 0.50 | 0.475 | 0.486 | +1.25% | |
| 0.48 | 0.493 | 0.476 | 0.48 | -0.62% | |
| 0.484 | 0.50 | 0.475 | 0.483 | -2.23% | |
| 0.486 | 0.503 | 0.47 | 0.494 | +0.82% | |
| 0.48 | 0.497 | 0.475 | 0.49 | +3.59% | |
| 0.50 | 0.509 | 0.473 | 0.473 | -5.02% | |
| 0.479 | 0.51 | 0.456 | 0.498 | +2.26% | |
| 0.48 | 0.506 | 0.48 | 0.487 | +0.21% | |
| 0.49 | 0.507 | 0.48 | 0.486 | 0.00% | |
| 0.504 | 0.525 | 0.486 | 0.486 | -4.71% | |
| 0.51 | 0.52 | 0.483 | 0.51 | -1.16% | |
| 0.534 | 0.542 | 0.497 | 0.516 | -3.37% | |
| 0.524 | 0.561 | 0.50 | 0.534 | +9.88% | |
| 0.52 | 0.521 | 0.47 | 0.486 | -3.57% | |
| 0.531 | 0.567 | 0.501 | 0.504 | -7.35% | |
| 0.58 | 0.59 | 0.535 | 0.544 | -6.53% | |
| 0.64 | 0.646 | 0.577 | 0.582 | -9.49% | |
| 0.588 | 0.68 | 0.588 | 0.643 | +6.11% | |
| 0.65 | 0.70 | 0.60 | 0.606 | -7.34% | |
| 0.60 | 0.657 | 0.60 | 0.654 | +10.29% | |
| 0.59 | 0.606 | 0.573 | 0.593 | +0.51% | |
| 0.597 | 0.624 | 0.571 | 0.59 | -1.17% | |
| 0.56 | 0.61 | 0.55 | 0.597 | +5.48% | |
| 0.54 | 0.57 | 0.528 | 0.566 | +7.20% | |
| 0.55 | 0.581 | 0.52 | 0.528 | -5.71% | |
| 0.58 | 0.59 | 0.543 | 0.56 | -0.36% | |
| 0.52 | 0.595 | 0.511 | 0.562 | +4.66% | |
| 0.463 | 0.56 | 0.463 | 0.537 | +14.26% | |
| 0.454 | 0.488 | 0.453 | 0.47 | +4.21% | |
| 0.476 | 0.488 | 0.45 | 0.451 | -2.59% | |
| 0.442 | 0.497 | 0.442 | 0.463 | +3.35% | |
| 0.443 | 0.46 | 0.441 | 0.448 | +1.13% | |
| 0.469 | 0.476 | 0.442 | 0.443 | +0.68% | |
| 0.473 | 0.475 | 0.44 | 0.44 | -7.37% | |
| 0.469 | 0.48 | 0.44 | 0.475 | +1.50% | |
| 0.462 | 0.481 | 0.448 | 0.468 | +2.63% | |
| 0.455 | 0.474 | 0.436 | 0.456 | +3.17% | |
| 0.473 | 0.474 | 0.44 | 0.442 | -5.96% | |
| 0.521 | 0.521 | 0.456 | 0.47 | -8.38% | |
| 0.507 | 0.54 | 0.507 | 0.513 | +2.60% | |
| 0.507 | 0.529 | 0.50 | 0.50 | -3.85% | |
| 0.56 | 0.56 | 0.517 | 0.52 | -4.94% | |
| 0.531 | 0.591 | 0.51 | 0.547 | +0.74% | |
| 0.535 | 0.566 | 0.52 | 0.543 | +11.50% | |
| 0.48 | 0.50 | 0.464 | 0.487 | +1.88% | |
| 0.496 | 0.50 | 0.473 | 0.478 | -1.24% | |
| 0.49 | 0.503 | 0.479 | 0.484 | -1.22% | |
| 0.529 | 0.536 | 0.49 | 0.49 | -7.37% | |
| 0.52 | 0.553 | 0.511 | 0.529 | -0.38% | |
| 0.50 | 0.546 | 0.495 | 0.531 | +9.94% | |
| 0.501 | 0.527 | 0.482 | 0.483 | -7.12% | |
| 0.506 | 0.538 | 0.46 | 0.52 | +3.17% | |
| 0.58 | 0.58 | 0.493 | 0.504 | -10.00% | |
| 0.417 | 0.579 | 0.415 | 0.56 | +41.41% | |
| 0.543 | 0.543 | 0.395 | 0.396 | -25.28% | |
| 0.80 | 0.803 | 0.51 | 0.53 | -44.21% | |
| 0.952 | 0.993 | 0.932 | 0.95 | +0.42% | |
| 0.94 | 0.96 | 0.901 | 0.946 | +2.60% | |
| 1.03 | 1.03 | 0.90 | 0.922 | -11.35% | |
| 0.847 | 1.05 | 0.83 | 1.04 | +23.52% | |
| 0.857 | 0.859 | 0.82 | 0.842 | -0.12% | |
| 0.853 | 0.86 | 0.823 | 0.843 | +1.08% | |
| 0.814 | 0.875 | 0.811 | 0.834 | +3.35% | |
| 0.76 | 0.813 | 0.76 | 0.807 | +5.49% | |
| 0.80 | 0.802 | 0.752 | 0.765 | -3.65% | |
| 0.787 | 0.813 | 0.78 | 0.794 | +0.38% | |
| 0.79 | 0.836 | 0.772 | 0.791 | +0.76% | |
| 0.783 | 0.816 | 0.78 | 0.785 | -0.88% | |
| 0.847 | 0.847 | 0.785 | 0.792 | -6.16% | |
| 0.835 | 0.865 | 0.83 | 0.844 | +2.43% | |
| 0.841 | 0.858 | 0.818 | 0.824 | -3.40% | |
| 0.856 | 0.87 | 0.842 | 0.853 | 0.00% | |
| 0.85 | 0.87 | 0.832 | 0.853 | +2.65% | |
| 0.859 | 0.87 | 0.825 | 0.831 | -1.42% | |
| 0.85 | 0.872 | 0.83 | 0.843 | +0.24% | |
| 0.82 | 0.875 | 0.82 | 0.841 | +3.83% | |
| 0.83 | 0.85 | 0.80 | 0.81 | -2.64% | |
| 0.77 | 0.848 | 0.752 | 0.832 | +10.93% | |
| 0.786 | 0.80 | 0.75 | 0.75 | -6.25% | |
| 0.83 | 0.835 | 0.792 | 0.80 | +0.63% | |
| 0.809 | 0.82 | 0.763 | 0.795 | -3.52% | |
| 0.84 | 0.866 | 0.82 | 0.824 | -2.72% | |
| 0.839 | 0.87 | 0.812 | 0.847 | -0.47% | |
| 0.80 | 0.865 | 0.79 | 0.851 | +9.10% | |
| 0.739 | 0.78 | 0.739 | 0.78 | +6.70% | |
| 0.75 | 0.755 | 0.72 | 0.731 | -2.79% | |
| 0.776 | 0.793 | 0.75 | 0.752 | -5.17% | |
| 0.78 | 0.811 | 0.78 | 0.793 | -0.75% | |
| 0.796 | 0.84 | 0.771 | 0.799 | +1.14% | |
| 0.82 | 0.825 | 0.78 | 0.79 | -4.47% | |
| 0.827 | 0.846 | 0.80 | 0.827 | +2.35% | |
| 0.825 | 0.846 | 0.801 | 0.808 | -2.42% | |
| 0.817 | 0.845 | 0.79 | 0.828 | +1.60% | |
| 0.88 | 0.894 | 0.814 | 0.815 | -7.60% | |
| 0.90 | 0.91 | 0.87 | 0.882 | -1.45% | |
| 0.85 | 0.90 | 0.841 | 0.895 | +5.29% | |
| 0.88 | 0.899 | 0.825 | 0.85 | -2.07% | |
| 0.90 | 0.91 | 0.85 | 0.868 | -5.86% | |
| 0.917 | 0.935 | 0.90 | 0.922 | -1.50% | |
| 0.904 | 0.97 | 0.90 | 0.936 | +4.00% | |
| 0.82 | 0.904 | 0.82 | 0.90 | +9.22% | |
| 0.875 | 0.888 | 0.82 | 0.824 | -8.65% | |
| 0.945 | 0.964 | 0.89 | 0.902 | -6.53% | |
| 0.96 | 0.996 | 0.92 | 0.965 | +0.52% | |
| 0.95 | 0.97 | 0.855 | 0.96 | -3.03% | |
| 0.93 | 0.99 | 0.925 | 0.99 | +3.13% | |
| 0.99 | 1.01 | 0.941 | 0.96 | -3.03% | |
| 1.03 | 1.03 | 0.965 | 0.99 | -2.94% | |
| 0.98 | 1.05 | 0.98 | 1.02 | +3.13% | |
| 0.998 | 1.04 | 0.96 | 0.989 | -2.08% | |
| 1.05 | 1.10 | 0.99 | 1.01 | -2.88% | |
| 1.05 | 1.08 | 0.998 | 1.04 | -0.95% | |
| 0.97 | 1.11 | 0.964 | 1.05 | +5.63% | |
| 0.971 | 1.02 | 0.96 | 0.994 | +1.12% | |
| 0.885 | 1.00 | 0.874 | 0.983 | +9.96% | |
| 0.89 | 0.947 | 0.87 | 0.894 | +0.34% | |
| 0.91 | 0.918 | 0.852 | 0.891 | -3.88% | |
| 0.888 | 0.927 | 0.82 | 0.927 | +5.34% | |
| 0.884 | 0.935 | 0.865 | 0.88 | -2.22% | |
| 0.924 | 0.924 | 0.836 | 0.90 | +0.11% | |
| 0.829 | 0.922 | 0.816 | 0.899 | +10.85% | |
| 0.86 | 0.90 | 0.81 | 0.811 | -7.95% | |
| 0.961 | 1.03 | 0.87 | 0.881 | -8.23% | |
| 0.974 | 1.04 | 0.87 | 0.96 | -1.03% | |
| 0.88 | 1.02 | 0.87 | 0.97 | +9.85% | |
| 0.845 | 0.887 | 0.82 | 0.883 | +3.76% | |
| 0.75 | 0.895 | 0.74 | 0.851 | +26.26% | |
| 0.701 | 0.71 | 0.67 | 0.674 | -4.67% | |
| 0.702 | 0.72 | 0.69 | 0.707 | +0.86% | |
| 0.71 | 0.734 | 0.70 | 0.701 | -3.04% | |
| 0.73 | 0.744 | 0.715 | 0.723 | -3.08% | |
| 0.71 | 0.759 | 0.701 | 0.746 | +5.22% | |
| 0.702 | 0.719 | 0.691 | 0.709 | +0.28% | |
| 0.69 | 0.73 | 0.69 | 0.707 | -0.28% | |
| 0.697 | 0.739 | 0.697 | 0.709 | +0.28% | |
| 0.70 | 0.743 | 0.694 | 0.707 | -1.53% | |
| 0.70 | 0.727 | 0.691 | 0.718 | +1.70% | |
| 0.68 | 0.71 | 0.663 | 0.706 | +3.37% | |
| 0.709 | 0.72 | 0.656 | 0.683 | -4.21% | |
| 0.721 | 0.74 | 0.71 | 0.713 | -1.66% | |
| 0.73 | 0.745 | 0.717 | 0.725 | -2.95% | |
| 0.722 | 0.762 | 0.722 | 0.747 | +3.18% | |
| 0.734 | 0.76 | 0.711 | 0.724 | -2.95% | |
| 0.75 | 0.778 | 0.741 | 0.746 | -1.71% | |
| 0.783 | 0.80 | 0.74 | 0.759 | -3.07% | |
| 0.723 | 0.85 | 0.72 | 0.783 | +5.10% | |
| 0.72 | 0.745 | 0.715 | 0.745 | -0.53% | |
| 0.72 | 0.749 | 0.71 | 0.749 | +0.81% | |
| 0.727 | 0.745 | 0.705 | 0.743 | +0.68% | |
| 0.71 | 0.74 | 0.71 | 0.738 | +2.50% | |
| 0.715 | 0.763 | 0.71 | 0.72 | -0.83% | |
| 0.718 | 0.748 | 0.705 | 0.726 | -3.20% | |
| 0.70 | 0.75 | 0.691 | 0.75 | +6.69% | |
| 0.71 | 0.748 | 0.70 | 0.703 | -0.99% | |
| 0.733 | 0.751 | 0.703 | 0.71 | -3.14% | |
| 0.716 | 0.754 | 0.716 | 0.733 | 0.00% | |
| 0.763 | 0.788 | 0.726 | 0.733 | -5.54% | |
| 0.758 | 0.795 | 0.758 | 0.776 | +1.44% | |
| 0.81 | 0.824 | 0.761 | 0.765 | -6.25% | |
| 0.81 | 0.83 | 0.782 | 0.816 | +0.99% | |
| 0.80 | 0.829 | 0.80 | 0.808 | -0.49% | |
| 0.80 | 0.835 | 0.80 | 0.812 | -1.46% | |
| 0.829 | 0.85 | 0.81 | 0.824 | -0.48% | |
| 0.77 | 0.86 | 0.752 | 0.828 | +7.39% | |
| 0.705 | 0.775 | 0.70 | 0.771 | +9.36% | |
| 0.74 | 0.747 | 0.705 | 0.705 | -4.86% | |
| 0.77 | 0.808 | 0.741 | 0.741 | -5.12% | |
| 0.771 | 0.797 | 0.758 | 0.781 | +2.09% | |
| 0.774 | 0.798 | 0.741 | 0.765 | -0.26% | |
| 0.76 | 0.789 | 0.74 | 0.767 | -1.41% | |
| 0.66 | 0.779 | 0.654 | 0.778 | +16.99% | |
| 0.643 | 0.69 | 0.64 | 0.665 | +2.15% | |
| 0.69 | 0.72 | 0.651 | 0.651 | -3.56% | |
| 0.70 | 0.72 | 0.666 | 0.675 | -3.71% | |
| 0.683 | 0.719 | 0.681 | 0.701 | +3.09% | |
| 0.743 | 0.77 | 0.676 | 0.68 | -9.69% | |
| 0.691 | 0.753 | 0.688 | 0.753 | +5.61% | |
| 0.729 | 0.744 | 0.70 | 0.713 | -1.38% | |
| 0.77 | 0.81 | 0.723 | 0.723 | -8.13% | |
| 0.784 | 0.80 | 0.77 | 0.787 | -0.38% | |
| 0.81 | 0.835 | 0.772 | 0.79 | -3.30% | |
| 0.75 | 0.83 | 0.743 | 0.817 | +6.10% | |
| 0.81 | 0.825 | 0.77 | 0.77 | -5.41% | |
| 0.806 | 0.83 | 0.79 | 0.814 | -1.57% | |
| 0.84 | 0.87 | 0.818 | 0.827 | -6.13% | |
| 0.876 | 0.882 | 0.823 | 0.881 | +1.73% | |
| 0.89 | 0.924 | 0.866 | 0.866 | -2.48% | |
| 0.955 | 0.96 | 0.888 | 0.888 | -8.36% | |
| 0.96 | 1.00 | 0.951 | 0.969 | +0.94% | |
| 0.985 | 1.02 | 0.96 | 0.96 | -1.34% | |
| 0.97 | 1.01 | 0.969 | 0.973 | +0.72% | |
| 0.988 | 0.99 | 0.944 | 0.966 | -0.72% | |
| 0.965 | 0.987 | 0.941 | 0.973 | +0.72% | |
| 1.02 | 1.05 | 0.953 | 0.966 | -6.21% | |
| 1.01 | 1.07 | 0.995 | 1.03 | +0.98% | |
| 1.03 | 1.04 | 0.98 | 1.02 | 0.00% | |
| 0.99 | 1.04 | 0.96 | 1.02 | +2.00% | |
| 0.995 | 1.10 | 0.995 | 1.00 | -1.96% | |
| 1.04 | 1.08 | 1.00 | 1.02 | -1.92% | |
| 0.924 | 1.06 | 0.90 | 1.04 | +7.66% | |
| 1.07 | 1.08 | 0.95 | 0.966 | -8.87% | |
| 1.07 | 1.12 | 1.01 | 1.06 | +11.23% | |
| 0.99 | 1.02 | 0.927 | 0.953 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the ATYR chart for longer ranges.