Tecogen Inc. (TGEN)
NYSEAMERICAN: TGEN · Real-Time Price · USD
6.85
-0.24 (-3.39%)
At close: Sep 12, 2025, 4:00 PM EDT
7.09
+0.24 (3.50%)
After-hours: Sep 12, 2025, 8:00 PM EDT
Tecogen Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 12, 2025 | 7.01 | 7.19 | 6.85 | 6.85 | 6.85 | -3.39% | 358,134 |
| Sep 11, 2025 | 7.23 | 7.25 | 6.91 | 7.09 | 7.09 | -1.12% | 459,637 |
| Sep 10, 2025 | 6.85 | 7.38 | 6.85 | 7.17 | 7.17 | 8.14% | 704,348 |
| Sep 9, 2025 | 6.97 | 7.20 | 6.61 | 6.63 | 6.63 | 0.30% | 1,105,093 |
| Sep 8, 2025 | 7.06 | 7.12 | 6.33 | 6.61 | 6.61 | -6.11% | 1,233,310 |
| Sep 5, 2025 | 6.97 | 7.26 | 6.64 | 7.04 | 7.04 | 0.43% | 561,966 |
| Sep 4, 2025 | 7.03 | 7.20 | 6.78 | 7.01 | 7.01 | -0.14% | 566,159 |
| Sep 3, 2025 | 7.50 | 7.83 | 6.94 | 7.02 | 7.02 | -5.14% | 825,729 |
| Sep 2, 2025 | 7.54 | 7.62 | 7.26 | 7.40 | 7.40 | -3.14% | 522,969 |
| Aug 29, 2025 | 7.67 | 7.93 | 7.20 | 7.64 | 7.64 | -1.16% | 520,569 |
| Aug 28, 2025 | 7.93 | 8.35 | 7.61 | 7.73 | 7.73 | -2.03% | 496,630 |
| Aug 27, 2025 | 8.35 | 8.42 | 7.79 | 7.89 | 7.89 | -5.28% | 495,222 |
| Aug 26, 2025 | 8.72 | 8.93 | 8.01 | 8.33 | 8.33 | -3.48% | 554,219 |
| Aug 25, 2025 | 9.01 | 9.21 | 8.59 | 8.63 | 8.63 | -5.06% | 579,969 |
| Aug 22, 2025 | 8.57 | 9.23 | 8.34 | 9.09 | 9.09 | 7.07% | 585,800 |
| Aug 21, 2025 | 8.19 | 8.77 | 8.03 | 8.49 | 8.49 | 3.66% | 327,686 |
| Aug 20, 2025 | 8.35 | 8.45 | 7.60 | 8.19 | 8.19 | -4.32% | 1,097,740 |
| Aug 19, 2025 | 9.48 | 9.55 | 8.27 | 8.56 | 8.56 | -10.08% | 979,004 |
| Aug 18, 2025 | 8.82 | 9.66 | 8.56 | 9.52 | 9.52 | 14.84% | 1,112,369 |
| Aug 15, 2025 | 8.92 | 9.01 | 8.19 | 8.29 | 8.29 | -7.17% | 775,339 |
| Aug 14, 2025 | 8.42 | 8.94 | 7.74 | 8.93 | 8.93 | 3.72% | 1,513,735 |
| Aug 13, 2025 | 10.94 | 11.55 | 8.42 | 8.61 | 8.61 | -2.38% | 2,544,992 |
| Aug 12, 2025 | 9.14 | 9.49 | 8.41 | 8.82 | 8.82 | -2.22% | 1,130,404 |
| Aug 11, 2025 | 9.49 | 9.50 | 8.50 | 9.02 | 9.02 | -4.35% | 779,475 |
| Aug 8, 2025 | 8.51 | 9.73 | 8.51 | 9.43 | 9.43 | 12.80% | 1,293,246 |
| Aug 7, 2025 | 9.27 | 9.75 | 8.25 | 8.36 | 8.36 | -9.03% | 959,807 |
| Aug 6, 2025 | 8.73 | 10.02 | 8.22 | 9.19 | 9.19 | 8.37% | 1,172,539 |
| Aug 5, 2025 | 9.13 | 9.87 | 8.42 | 8.48 | 8.48 | -6.81% | 613,060 |
| Aug 4, 2025 | 9.36 | 10.22 | 8.85 | 9.10 | 9.10 | -0.87% | 768,900 |
| Aug 1, 2025 | 8.60 | 9.49 | 8.16 | 9.18 | 9.18 | -5.17% | 975,396 |
| Jul 31, 2025 | 8.75 | 10.04 | 8.38 | 9.68 | 9.68 | 15.51% | 1,654,789 |
| Jul 30, 2025 | 7.52 | 8.73 | 7.52 | 8.38 | 8.38 | 12.79% | 1,034,957 |
| Jul 29, 2025 | 7.81 | 8.10 | 7.35 | 7.43 | 7.43 | -6.31% | 454,075 |
| Jul 28, 2025 | 8.50 | 8.50 | 7.80 | 7.93 | 7.93 | -6.71% | 673,688 |
| Jul 25, 2025 | 8.25 | 8.50 | 8.03 | 8.50 | 8.50 | 1.80% | 277,643 |
| Jul 24, 2025 | 8.60 | 8.68 | 8.18 | 8.35 | 8.35 | -0.48% | 577,708 |
| Jul 23, 2025 | 7.30 | 8.49 | 7.17 | 8.39 | 8.39 | 19.69% | 1,267,585 |
| Jul 22, 2025 | 7.17 | 7.42 | 6.72 | 7.01 | 7.01 | -1.27% | 935,811 |
| Jul 21, 2025 | 7.80 | 7.95 | 7.06 | 7.10 | 7.10 | -8.03% | 1,301,760 |
| Jul 18, 2025 | 5.99 | 8.09 | 5.90 | 7.72 | 7.72 | 33.56% | 5,792,285 |
| Jul 17, 2025 | 6.08 | 6.18 | 5.63 | 5.78 | 5.78 | -4.93% | 1,923,612 |
| Jul 16, 2025 | 6.21 | 6.44 | 5.92 | 6.08 | 6.08 | -3.80% | 1,180,843 |
| Jul 15, 2025 | 7.32 | 7.37 | 6.25 | 6.32 | 6.32 | -15.73% | 1,282,622 |
| Jul 14, 2025 | 7.84 | 7.85 | 7.01 | 7.50 | 7.50 | -5.42% | 484,519 |
| Jul 11, 2025 | 8.15 | 8.38 | 7.66 | 7.93 | 7.93 | -2.82% | 281,819 |
| Jul 10, 2025 | 8.80 | 9.31 | 7.81 | 8.16 | 8.16 | -6.53% | 451,520 |
| Jul 9, 2025 | 8.56 | 8.76 | 8.15 | 8.73 | 8.73 | 3.56% | 207,575 |
| Jul 8, 2025 | 7.96 | 8.98 | 7.95 | 8.43 | 8.43 | 6.04% | 467,390 |
| Jul 7, 2025 | 8.50 | 8.69 | 7.75 | 7.95 | 7.95 | -4.68% | 461,184 |
| Jul 3, 2025 | 8.63 | 8.95 | 8.22 | 8.34 | 8.34 | -8.65% | 433,170 |