Aldeyra Therapeutics, Inc. (ALDX)
NASDAQ: ALDX · Real-Time Price · USD
4.900
-0.060 (-1.21%)
At close: Sep 17, 2025, 4:00 PM EDT
4.870
-0.030 (-0.61%)
After-hours: Sep 17, 2025, 7:50 PM EDT
Aldeyra Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 17, 2025 | 4.97 | 5.11 | 4.88 | 4.90 | 4.90 | -1.21% | 846,509 |
| Sep 16, 2025 | 5.15 | 5.23 | 4.94 | 4.96 | 4.96 | -2.55% | 796,480 |
| Sep 15, 2025 | 5.41 | 5.43 | 4.96 | 5.09 | 5.09 | -5.57% | 1,599,523 |
| Sep 12, 2025 | 5.56 | 5.62 | 5.38 | 5.39 | 5.39 | -3.06% | 661,034 |
| Sep 11, 2025 | 5.54 | 5.83 | 5.49 | 5.56 | 5.56 | 0.36% | 734,933 |
| Sep 10, 2025 | 5.81 | 5.88 | 5.48 | 5.54 | 5.54 | -3.82% | 613,480 |
| Sep 9, 2025 | 5.70 | 5.77 | 5.62 | 5.76 | 5.76 | 1.05% | 1,012,596 |
| Sep 8, 2025 | 5.54 | 5.80 | 5.42 | 5.70 | 5.70 | 2.52% | 673,238 |
| Sep 5, 2025 | 5.56 | 5.70 | 5.39 | 5.56 | 5.56 | 0.54% | 1,063,073 |
| Sep 4, 2025 | 5.82 | 5.88 | 5.50 | 5.53 | 5.53 | -5.15% | 1,550,263 |
| Sep 3, 2025 | 5.69 | 5.93 | 5.65 | 5.83 | 5.83 | 1.39% | 514,291 |
| Sep 2, 2025 | 5.82 | 5.91 | 5.72 | 5.75 | 5.75 | -1.54% | 452,144 |
| Aug 29, 2025 | 5.86 | 5.91 | 5.69 | 5.84 | 5.84 | -0.34% | 453,359 |
| Aug 28, 2025 | 5.91 | 6.18 | 5.84 | 5.86 | 5.86 | 0.17% | 995,768 |
| Aug 27, 2025 | 5.87 | 5.89 | 5.74 | 5.85 | 5.85 | -0.68% | 476,119 |
| Aug 26, 2025 | 5.81 | 5.92 | 5.75 | 5.89 | 5.89 | 2.08% | 521,689 |
| Aug 25, 2025 | 5.82 | 5.89 | 5.68 | 5.77 | 5.77 | -0.69% | 561,896 |
| Aug 22, 2025 | 5.89 | 6.05 | 5.66 | 5.81 | 5.81 | -1.19% | 1,026,475 |
| Aug 21, 2025 | 5.57 | 5.97 | 5.56 | 5.88 | 5.88 | 4.44% | 884,392 |
| Aug 20, 2025 | 5.59 | 5.68 | 5.50 | 5.63 | 5.63 | 0.54% | 501,378 |
| Aug 19, 2025 | 5.44 | 5.73 | 5.34 | 5.60 | 5.60 | 2.94% | 1,185,061 |
| Aug 18, 2025 | 5.43 | 5.65 | 5.38 | 5.44 | 5.44 | 0.93% | 739,004 |
| Aug 15, 2025 | 5.31 | 5.40 | 5.25 | 5.39 | 5.39 | 1.70% | 913,416 |
| Aug 14, 2025 | 5.29 | 5.41 | 5.21 | 5.30 | 5.30 | -1.30% | 574,598 |
| Aug 13, 2025 | 5.37 | 5.49 | 5.28 | 5.37 | 5.37 | 0.19% | 869,020 |
| Aug 12, 2025 | 5.30 | 5.49 | 5.27 | 5.36 | 5.36 | 2.10% | 830,609 |
| Aug 11, 2025 | 5.26 | 5.37 | 5.04 | 5.25 | 5.25 | -0.19% | 1,033,343 |
| Aug 8, 2025 | 5.16 | 5.32 | 4.99 | 5.26 | 5.26 | 1.74% | 1,314,032 |
| Aug 7, 2025 | 5.28 | 5.31 | 5.08 | 5.17 | 5.17 | -0.96% | 606,579 |
| Aug 6, 2025 | 5.18 | 5.29 | 5.05 | 5.22 | 5.22 | 1.16% | 715,815 |
| Aug 5, 2025 | 5.07 | 5.23 | 4.99 | 5.16 | 5.16 | 1.57% | 1,274,506 |
| Aug 4, 2025 | 4.90 | 5.23 | 4.80 | 5.08 | 5.08 | 5.61% | 1,041,052 |
| Aug 1, 2025 | 4.90 | 4.92 | 4.23 | 4.81 | 4.81 | -3.61% | 1,511,276 |
| Jul 31, 2025 | 5.06 | 5.15 | 4.94 | 4.99 | 4.99 | -1.19% | 780,217 |
| Jul 30, 2025 | 5.14 | 5.35 | 5.00 | 5.05 | 5.05 | -0.79% | 965,979 |
| Jul 29, 2025 | 5.30 | 5.32 | 5.02 | 5.09 | 5.09 | -4.32% | 1,220,635 |
| Jul 28, 2025 | 5.15 | 5.37 | 5.12 | 5.32 | 5.32 | 2.90% | 904,745 |
| Jul 25, 2025 | 5.42 | 5.47 | 5.13 | 5.17 | 5.17 | -4.96% | 1,755,343 |
| Jul 24, 2025 | 5.53 | 5.62 | 5.39 | 5.44 | 5.44 | -1.63% | 979,947 |
| Jul 23, 2025 | 5.39 | 5.62 | 5.37 | 5.53 | 5.53 | 3.17% | 880,566 |
| Jul 22, 2025 | 5.39 | 5.40 | 5.21 | 5.36 | 5.36 | -0.56% | 937,737 |
| Jul 21, 2025 | 5.37 | 5.47 | 5.24 | 5.39 | 5.39 | - | 1,436,566 |
| Jul 18, 2025 | 5.17 | 5.66 | 5.15 | 5.39 | 5.39 | 7.16% | 1,773,504 |
| Jul 17, 2025 | 5.20 | 5.41 | 4.88 | 5.03 | 5.03 | -2.52% | 1,928,583 |
| Jul 16, 2025 | 5.00 | 5.18 | 4.94 | 5.16 | 5.16 | 3.82% | 717,843 |
| Jul 15, 2025 | 5.05 | 5.09 | 4.81 | 4.97 | 4.97 | -0.80% | 1,175,370 |
| Jul 14, 2025 | 4.66 | 5.04 | 4.64 | 5.01 | 5.01 | 7.74% | 1,220,585 |
| Jul 11, 2025 | 4.74 | 4.81 | 4.55 | 4.65 | 4.65 | -3.12% | 1,383,108 |
| Jul 10, 2025 | 4.50 | 4.92 | 4.44 | 4.80 | 4.80 | 6.19% | 1,410,924 |
| Jul 9, 2025 | 4.40 | 4.60 | 4.34 | 4.52 | 4.52 | 4.39% | 1,754,980 |