Tecogen Inc. (TGEN)
NYSEAMERICAN: TGEN · Real-Time Price · USD
3.420
+0.160 (4.91%)
Aug 21, 2026, 4:00 PM EDT - Market closed
Tecogen Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 21, 2026 | 3.25 | 3.47 | 3.25 | 3.42 | 3.42 | 4.91% | 217,942 |
| Aug 20, 2026 | 3.32 | 3.42 | 3.13 | 3.26 | 3.26 | -2.98% | 183,628 |
| Aug 19, 2026 | 3.51 | 3.59 | 3.31 | 3.36 | 3.36 | -4.00% | 173,384 |
| Aug 18, 2026 | 3.50 | 3.56 | 3.32 | 3.50 | 3.50 | -1.96% | 227,359 |
| Aug 17, 2026 | 3.62 | 3.96 | 3.55 | 3.57 | 3.57 | -2.19% | 207,395 |
| Aug 14, 2026 | 4.12 | 4.13 | 3.56 | 3.65 | 3.65 | -12.89% | 354,742 |
| Aug 13, 2026 | 3.76 | 4.43 | 3.65 | 4.19 | 4.19 | 4.49% | 334,770 |
| Aug 12, 2026 | 4.06 | 4.15 | 3.94 | 4.01 | 4.01 | -1.23% | 158,522 |
| Aug 11, 2026 | 3.90 | 4.06 | 3.90 | 4.06 | 4.06 | 4.64% | 72,492 |
| Aug 10, 2026 | 3.90 | 4.00 | 3.83 | 3.88 | 3.88 | -0.26% | 92,777 |
| Aug 7, 2026 | 3.79 | 4.00 | 3.77 | 3.89 | 3.89 | 4.29% | 102,291 |
| Aug 6, 2026 | 3.71 | 3.86 | 3.70 | 3.73 | 3.73 | -0.80% | 164,567 |
| Aug 5, 2026 | 3.79 | 3.97 | 3.61 | 3.76 | 3.76 | 0.53% | 155,833 |
| Aug 4, 2026 | 3.71 | 3.88 | 3.71 | 3.74 | 3.74 | 2.47% | 165,159 |
| Aug 3, 2026 | 3.36 | 3.67 | 3.36 | 3.65 | 3.65 | 9.94% | 195,295 |
| Jul 31, 2026 | 3.27 | 3.37 | 3.22 | 3.32 | 3.32 | 3.75% | 74,399 |
| Jul 30, 2026 | 3.08 | 3.23 | 3.07 | 3.20 | 3.20 | 6.67% | 165,349 |
| Jul 29, 2026 | 3.07 | 3.30 | 2.91 | 3.00 | 3.00 | -3.23% | 525,927 |
| Jul 28, 2026 | 3.39 | 3.39 | 3.07 | 3.10 | 3.10 | -7.19% | 396,769 |
| Jul 27, 2026 | 3.28 | 3.44 | 3.16 | 3.34 | 3.34 | 3.73% | 295,762 |
| Jul 24, 2026 | 3.38 | 3.38 | 3.15 | 3.22 | 3.22 | -5.29% | 351,427 |
| Jul 23, 2026 | 3.44 | 3.64 | 3.34 | 3.40 | 3.40 | -3.95% | 274,539 |
| Jul 22, 2026 | 3.50 | 3.74 | 3.48 | 3.54 | 3.54 | -1.39% | 226,588 |
| Jul 21, 2026 | 3.52 | 3.59 | 3.32 | 3.59 | 3.59 | 4.06% | 323,264 |
| Jul 20, 2026 | 3.61 | 3.70 | 3.41 | 3.45 | 3.45 | -2.82% | 143,498 |
| Jul 17, 2026 | 3.58 | 3.68 | 3.49 | 3.55 | 3.55 | -4.83% | 359,848 |
| Jul 16, 2026 | 3.89 | 4.08 | 3.63 | 3.73 | 3.73 | -5.57% | 246,552 |
| Jul 15, 2026 | 4.07 | 4.22 | 3.86 | 3.95 | 3.95 | -1.50% | 189,320 |
| Jul 14, 2026 | 4.00 | 4.16 | 3.97 | 4.01 | 4.01 | 0.75% | 190,839 |
| Jul 13, 2026 | 4.08 | 4.10 | 3.92 | 3.98 | 3.98 | -3.40% | 169,741 |
| Jul 10, 2026 | 4.45 | 4.47 | 4.11 | 4.12 | 4.12 | -7.83% | 84,101 |
| Jul 9, 2026 | 4.10 | 4.51 | 4.01 | 4.47 | 4.47 | 9.83% | 297,724 |
| Jul 8, 2026 | 3.96 | 4.10 | 3.86 | 4.07 | 4.07 | 1.75% | 214,127 |
| Jul 7, 2026 | 4.27 | 4.45 | 3.95 | 4.00 | 4.00 | -8.26% | 318,744 |
| Jul 6, 2026 | 4.52 | 4.73 | 4.27 | 4.36 | 4.36 | -3.54% | 366,758 |
| Jul 2, 2026 | 4.87 | 5.14 | 4.36 | 4.52 | 4.52 | -8.32% | 443,472 |
| Jul 1, 2026 | 5.17 | 5.45 | 4.87 | 4.93 | 4.93 | -5.56% | 198,435 |
| Jun 30, 2026 | 5.27 | 5.49 | 5.06 | 5.22 | 5.22 | -0.19% | 137,697 |
| Jun 29, 2026 | 5.18 | 5.42 | 4.98 | 5.23 | 5.23 | 1.16% | 151,601 |
| Jun 26, 2026 | 5.10 | 5.34 | 4.95 | 5.17 | 5.17 | -0.58% | 240,873 |
| Jun 25, 2026 | 5.50 | 5.76 | 5.09 | 5.20 | 5.20 | -3.35% | 339,037 |
| Jun 24, 2026 | 5.84 | 5.95 | 5.30 | 5.38 | 5.38 | -5.94% | 259,039 |
| Jun 23, 2026 | 5.79 | 6.27 | 5.62 | 5.72 | 5.72 | -5.45% | 265,151 |
| Jun 22, 2026 | 6.06 | 6.35 | 6.00 | 6.05 | 6.05 | 0.33% | 187,817 |
| Jun 18, 2026 | 6.00 | 6.17 | 5.86 | 6.03 | 6.03 | 4.33% | 168,261 |
| Jun 17, 2026 | 5.77 | 6.19 | 5.71 | 5.78 | 5.78 | 1.94% | 198,810 |
| Jun 16, 2026 | 5.70 | 6.08 | 5.55 | 5.67 | 5.67 | -0.18% | 163,315 |
| Jun 15, 2026 | 6.05 | 6.18 | 5.62 | 5.68 | 5.68 | -0.87% | 215,203 |
| Jun 12, 2026 | 5.67 | 5.95 | 5.53 | 5.73 | 5.73 | 0.35% | 195,508 |
| Jun 11, 2026 | 5.38 | 5.71 | 5.21 | 5.71 | 5.71 | 7.33% | 248,562 |