Aspen Aerogels, Inc. (ASPN)
NYSE: ASPN · Real-Time Price · USD
5.69
+0.13 (2.34%)
At close: Oct 2, 2026, 4:00 PM EDT
5.74
+0.05 (0.88%)
After-hours: Oct 2, 2026, 7:50 PM EDT
Aspen Aerogels Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 2, 2026 | 5.67 | 5.82 | 5.65 | 5.69 | 5.69 | 2.34% | 838,831 |
| Oct 1, 2026 | 5.60 | 5.65 | 5.30 | 5.56 | 5.56 | 1.46% | 1,069,171 |
| Sep 30, 2026 | 5.24 | 5.51 | 5.18 | 5.48 | 5.48 | 4.98% | 1,418,227 |
| Sep 29, 2026 | 5.27 | 5.34 | 5.07 | 5.22 | 5.22 | 0.97% | 815,222 |
| Sep 28, 2026 | 5.18 | 5.35 | 5.06 | 5.17 | 5.17 | -0.96% | 1,077,313 |
| Sep 25, 2026 | 5.25 | 5.31 | 5.02 | 5.22 | 5.22 | -1.51% | 1,741,628 |
| Sep 24, 2026 | 5.50 | 5.64 | 5.20 | 5.30 | 5.30 | -6.69% | 2,364,711 |
| Sep 23, 2026 | 5.45 | 5.73 | 5.42 | 5.68 | 5.68 | 3.65% | 1,098,054 |
| Sep 22, 2026 | 5.22 | 5.59 | 5.17 | 5.48 | 5.48 | 5.59% | 1,495,340 |
| Sep 21, 2026 | 5.16 | 5.21 | 5.06 | 5.19 | 5.19 | 2.37% | 661,710 |
| Sep 18, 2026 | 5.18 | 5.18 | 4.89 | 5.07 | 5.07 | -1.17% | 824,543 |
| Sep 17, 2026 | 5.05 | 5.26 | 5.05 | 5.13 | 5.13 | 4.06% | 630,540 |
| Sep 16, 2026 | 4.90 | 5.09 | 4.88 | 4.93 | 4.93 | 1.44% | 665,879 |
| Sep 15, 2026 | 4.86 | 4.94 | 4.78 | 4.86 | 4.86 | -0.21% | 494,108 |
| Sep 14, 2026 | 4.80 | 4.94 | 4.78 | 4.87 | 4.87 | -0.81% | 574,135 |
| Sep 11, 2026 | 4.82 | 4.99 | 4.75 | 4.91 | 4.91 | 3.15% | 688,181 |
| Sep 10, 2026 | 4.78 | 4.89 | 4.71 | 4.76 | 4.76 | -1.65% | 632,035 |
| Sep 9, 2026 | 4.87 | 4.95 | 4.81 | 4.84 | 4.84 | -1.43% | 726,777 |
| Sep 8, 2026 | 4.92 | 5.08 | 4.89 | 4.91 | 4.91 | -0.20% | 681,976 |
| Sep 4, 2026 | 4.76 | 4.92 | 4.76 | 4.92 | 4.92 | 2.93% | 440,345 |
| Sep 3, 2026 | 4.92 | 4.97 | 4.77 | 4.78 | 4.78 | -2.85% | 700,370 |
| Sep 2, 2026 | 4.81 | 4.94 | 4.80 | 4.92 | 4.92 | 1.65% | 695,007 |
| Sep 1, 2026 | 4.81 | 4.88 | 4.71 | 4.84 | 4.84 | -1.83% | 870,671 |
| Aug 31, 2026 | 4.96 | 5.01 | 4.82 | 4.93 | 4.93 | - | 759,885 |
| Aug 28, 2026 | 5.25 | 5.30 | 4.90 | 4.93 | 4.93 | -5.74% | 904,677 |
| Aug 27, 2026 | 5.30 | 5.40 | 5.20 | 5.23 | 5.23 | 0.77% | 670,456 |
| Aug 26, 2026 | 5.20 | 5.32 | 5.18 | 5.19 | 5.19 | -0.76% | 533,383 |
| Aug 25, 2026 | 5.10 | 5.38 | 5.07 | 5.23 | 5.23 | 4.39% | 845,830 |
| Aug 24, 2026 | 5.15 | 5.15 | 4.96 | 5.01 | 5.01 | -3.28% | 740,742 |
| Aug 21, 2026 | 5.16 | 5.26 | 5.10 | 5.18 | 5.18 | 1.37% | 712,641 |
| Aug 20, 2026 | 5.40 | 5.45 | 5.07 | 5.11 | 5.11 | -6.24% | 899,481 |
| Aug 19, 2026 | 5.59 | 5.68 | 5.44 | 5.45 | 5.45 | -2.33% | 733,952 |
| Aug 18, 2026 | 5.69 | 5.71 | 5.46 | 5.58 | 5.58 | -4.12% | 857,690 |
| Aug 17, 2026 | 5.80 | 5.90 | 5.73 | 5.82 | 5.82 | -0.51% | 817,735 |
| Aug 14, 2026 | 5.98 | 6.04 | 5.81 | 5.85 | 5.85 | -3.62% | 1,016,680 |
| Aug 13, 2026 | 6.07 | 6.19 | 5.97 | 6.07 | 6.07 | -1.30% | 966,005 |
| Aug 12, 2026 | 6.30 | 6.33 | 6.04 | 6.15 | 6.15 | 0.16% | 1,044,099 |
| Aug 11, 2026 | 6.39 | 6.42 | 6.02 | 6.14 | 6.14 | -2.38% | 990,314 |
| Aug 10, 2026 | 6.31 | 6.84 | 6.27 | 6.29 | 6.29 | 0.64% | 1,219,360 |
| Aug 7, 2026 | 7.04 | 7.13 | 5.67 | 6.25 | 6.25 | -9.29% | 2,294,648 |
| Aug 6, 2026 | 7.30 | 8.10 | 6.41 | 6.89 | 6.89 | 37.52% | 14,367,336 |
| Aug 5, 2026 | 5.06 | 5.16 | 4.92 | 5.01 | 5.01 | -0.99% | 1,083,326 |
| Aug 4, 2026 | 4.78 | 5.08 | 4.78 | 5.06 | 5.06 | 6.98% | 1,042,636 |
| Aug 3, 2026 | 4.59 | 4.83 | 4.49 | 4.73 | 4.73 | 2.16% | 897,778 |
| Jul 31, 2026 | 4.61 | 4.71 | 4.45 | 4.63 | 4.63 | 2.66% | 991,156 |
| Jul 30, 2026 | 4.25 | 4.57 | 4.24 | 4.51 | 4.51 | 10.27% | 1,303,341 |
| Jul 29, 2026 | 4.37 | 4.43 | 4.07 | 4.09 | 4.09 | -6.83% | 1,176,581 |
| Jul 28, 2026 | 4.65 | 4.65 | 4.34 | 4.39 | 4.39 | -5.59% | 901,476 |
| Jul 27, 2026 | 4.74 | 4.86 | 4.58 | 4.65 | 4.65 | -0.43% | 1,252,400 |
| Jul 24, 2026 | 5.15 | 5.15 | 4.60 | 4.67 | 4.67 | -9.50% | 1,195,175 |