Tecogen Inc. (TGEN)
NYSEAMERICAN: TGEN · Real-Time Price · USD
4.200
-0.040 (-0.94%)
At close: Apr 28, 2026, 4:00 PM EDT
4.240
+0.040 (0.95%)
Pre-market: Apr 29, 2026, 6:11 AM EDT
Tecogen Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Apr 28, 2026 | 4.13 | 4.21 | 3.80 | 4.20 | 4.20 | -0.94% | 288,859 |
| Apr 27, 2026 | 4.27 | 4.39 | 4.10 | 4.24 | 4.24 | -1.17% | 140,526 |
| Apr 24, 2026 | 4.15 | 4.40 | 4.02 | 4.29 | 4.29 | 2.88% | 177,226 |
| Apr 23, 2026 | 4.28 | 4.42 | 3.93 | 4.17 | 4.17 | -3.47% | 363,125 |
| Apr 22, 2026 | 4.62 | 4.72 | 4.12 | 4.32 | 4.32 | -2.92% | 514,842 |
| Apr 21, 2026 | 4.94 | 4.94 | 4.36 | 4.45 | 4.45 | -8.62% | 548,035 |
| Apr 20, 2026 | 4.27 | 5.00 | 4.12 | 4.87 | 4.87 | 13.26% | 1,395,060 |
| Apr 17, 2026 | 3.95 | 4.47 | 3.86 | 4.30 | 4.30 | 11.11% | 1,198,938 |
| Apr 16, 2026 | 3.92 | 3.95 | 3.61 | 3.87 | 3.87 | -1.28% | 454,202 |
| Apr 15, 2026 | 3.90 | 4.12 | 3.71 | 3.92 | 3.92 | 3.43% | 629,349 |
| Apr 14, 2026 | 3.75 | 3.96 | 3.50 | 3.79 | 3.79 | 4.41% | 1,006,733 |
| Apr 13, 2026 | 2.87 | 3.80 | 2.87 | 3.63 | 3.63 | 27.37% | 1,311,993 |
| Apr 10, 2026 | 3.09 | 3.21 | 2.77 | 2.85 | 2.85 | -7.77% | 267,004 |
| Apr 9, 2026 | 2.67 | 3.23 | 2.67 | 3.09 | 3.09 | 12.77% | 633,811 |
| Apr 8, 2026 | 2.80 | 2.87 | 2.66 | 2.74 | 2.74 | 4.58% | 255,350 |
| Apr 7, 2026 | 2.65 | 2.65 | 2.47 | 2.62 | 2.62 | -1.50% | 190,475 |
| Apr 6, 2026 | 2.96 | 3.03 | 2.65 | 2.66 | 2.66 | -8.90% | 352,508 |
| Apr 2, 2026 | 2.85 | 3.03 | 2.75 | 2.92 | 2.92 | 5.04% | 307,154 |
| Apr 1, 2026 | 2.62 | 2.82 | 2.62 | 2.78 | 2.78 | 8.59% | 264,952 |
| Mar 31, 2026 | 2.53 | 2.67 | 2.49 | 2.56 | 2.56 | 4.07% | 224,823 |
| Mar 30, 2026 | 2.67 | 2.90 | 2.41 | 2.46 | 2.46 | -4.28% | 257,712 |
| Mar 27, 2026 | 2.61 | 2.67 | 2.45 | 2.57 | 2.57 | -1.91% | 398,810 |
| Mar 26, 2026 | 2.84 | 2.94 | 2.62 | 2.62 | 2.62 | -9.34% | 345,890 |
| Mar 25, 2026 | 3.15 | 3.15 | 2.60 | 2.89 | 2.89 | 5.09% | 619,741 |
| Mar 24, 2026 | 2.36 | 2.87 | 2.36 | 2.75 | 2.75 | 16.53% | 775,732 |
| Mar 23, 2026 | 2.24 | 2.45 | 2.19 | 2.36 | 2.36 | 5.83% | 480,861 |
| Mar 20, 2026 | 2.23 | 2.37 | 2.18 | 2.23 | 2.23 | 2.29% | 442,993 |
| Mar 19, 2026 | 2.09 | 2.25 | 2.06 | 2.18 | 2.18 | 9.00% | 547,527 |
| Mar 18, 2026 | 2.83 | 2.83 | 1.94 | 2.00 | 2.00 | -29.58% | 2,470,468 |
| Mar 17, 2026 | 2.76 | 2.97 | 2.74 | 2.84 | 2.84 | 3.27% | 360,466 |
| Mar 16, 2026 | 2.79 | 2.93 | 2.69 | 2.75 | 2.75 | -0.36% | 146,110 |
| Mar 13, 2026 | 2.81 | 2.95 | 2.63 | 2.76 | 2.76 | 1.85% | 330,123 |
| Mar 12, 2026 | 2.74 | 2.79 | 2.62 | 2.71 | 2.71 | -4.24% | 417,381 |
| Mar 11, 2026 | 2.80 | 2.88 | 2.66 | 2.83 | 2.83 | 0.71% | 275,422 |
| Mar 10, 2026 | 2.89 | 2.99 | 2.78 | 2.81 | 2.81 | -3.77% | 206,735 |
| Mar 9, 2026 | 2.82 | 2.95 | 2.82 | 2.92 | 2.92 | -2.01% | 206,338 |
| Mar 6, 2026 | 3.10 | 3.18 | 2.71 | 2.98 | 2.98 | -6.88% | 753,069 |
| Mar 5, 2026 | 3.26 | 3.34 | 3.06 | 3.20 | 3.20 | -3.03% | 193,538 |
| Mar 4, 2026 | 3.30 | 3.50 | 3.25 | 3.30 | 3.30 | 2.17% | 234,894 |
| Mar 3, 2026 | 3.36 | 3.37 | 3.15 | 3.23 | 3.23 | -6.38% | 291,591 |
| Mar 2, 2026 | 3.37 | 3.59 | 3.37 | 3.45 | 3.45 | -0.58% | 177,586 |
| Feb 27, 2026 | 3.78 | 3.78 | 3.37 | 3.47 | 3.47 | -10.34% | 379,529 |
| Feb 26, 2026 | 3.78 | 3.92 | 3.68 | 3.87 | 3.87 | 2.93% | 147,137 |
| Feb 25, 2026 | 3.72 | 3.86 | 3.67 | 3.76 | 3.76 | 2.17% | 163,519 |
| Feb 24, 2026 | 3.47 | 3.75 | 3.38 | 3.68 | 3.68 | 5.75% | 119,244 |
| Feb 23, 2026 | 3.50 | 3.58 | 3.43 | 3.48 | 3.48 | -1.69% | 170,335 |
| Feb 20, 2026 | 3.65 | 3.76 | 3.53 | 3.54 | 3.54 | -3.80% | 157,363 |
| Feb 19, 2026 | 3.49 | 3.68 | 3.37 | 3.68 | 3.68 | 4.55% | 170,574 |
| Feb 18, 2026 | 3.83 | 3.99 | 3.47 | 3.52 | 3.52 | -8.57% | 261,396 |
| Feb 17, 2026 | 3.85 | 3.87 | 3.62 | 3.85 | 3.85 | 1.05% | 270,301 |
| Feb 13, 2026 | 3.81 | 3.91 | 3.71 | 3.81 | 3.81 | 1.06% | 285,909 |
| Feb 12, 2026 | 3.93 | 4.00 | 3.71 | 3.77 | 3.77 | -3.33% | 122,480 |
| Feb 11, 2026 | 4.02 | 4.22 | 3.82 | 3.90 | 3.90 | 2.90% | 330,209 |
| Feb 10, 2026 | 3.87 | 3.92 | 3.69 | 3.79 | 3.79 | -2.57% | 149,538 |
| Feb 9, 2026 | 3.78 | 3.90 | 3.58 | 3.89 | 3.89 | 3.73% | 282,013 |
| Feb 6, 2026 | 3.58 | 4.00 | 3.58 | 3.75 | 3.75 | 7.14% | 397,124 |
| Feb 5, 2026 | 3.50 | 3.70 | 3.44 | 3.50 | 3.50 | -2.78% | 261,169 |
| Feb 4, 2026 | 3.86 | 3.86 | 3.45 | 3.60 | 3.60 | -5.26% | 526,208 |
| Feb 3, 2026 | 3.80 | 3.99 | 3.60 | 3.80 | 3.80 | 0.80% | 336,919 |
| Feb 2, 2026 | 3.73 | 3.91 | 3.65 | 3.77 | 3.77 | 0.80% | 413,202 |
| Jan 30, 2026 | 4.11 | 4.21 | 3.71 | 3.74 | 3.74 | -9.66% | 419,289 |
| Jan 29, 2026 | 4.06 | 4.20 | 3.95 | 4.14 | 4.14 | 0.24% | 362,691 |
| Jan 28, 2026 | 4.26 | 4.31 | 3.97 | 4.13 | 4.13 | -2.82% | 561,197 |
| Jan 27, 2026 | 4.29 | 4.44 | 4.10 | 4.25 | 4.25 | -1.16% | 370,603 |
| Jan 26, 2026 | 4.32 | 4.52 | 4.26 | 4.30 | 4.30 | -0.92% | 636,665 |
| Jan 23, 2026 | 4.76 | 4.76 | 4.31 | 4.34 | 4.34 | -8.82% | 389,652 |
| Jan 22, 2026 | 4.67 | 4.83 | 4.54 | 4.76 | 4.76 | 3.48% | 303,204 |
| Jan 21, 2026 | 4.56 | 4.95 | 4.44 | 4.60 | 4.60 | -2.95% | 562,618 |
| Jan 20, 2026 | 4.88 | 4.99 | 4.71 | 4.74 | 4.74 | -6.88% | 355,263 |
| Jan 16, 2026 | 5.00 | 5.18 | 5.00 | 5.09 | 5.09 | 2.00% | 481,082 |
| Jan 15, 2026 | 5.00 | 5.15 | 4.91 | 4.99 | 4.99 | 0.60% | 313,841 |
| Jan 14, 2026 | 4.94 | 5.06 | 4.83 | 4.96 | 4.96 | 0.61% | 322,643 |
| Jan 13, 2026 | 4.80 | 5.07 | 4.77 | 4.93 | 4.93 | 4.01% | 365,815 |
| Jan 12, 2026 | 4.63 | 4.81 | 4.50 | 4.74 | 4.74 | -0.42% | 371,184 |
| Jan 9, 2026 | 5.05 | 5.10 | 4.59 | 4.76 | 4.76 | -5.37% | 828,930 |
| Jan 8, 2026 | 4.39 | 5.15 | 4.39 | 5.03 | 5.03 | 13.29% | 1,203,227 |
| Jan 7, 2026 | 4.46 | 4.84 | 4.27 | 4.44 | 4.44 | 0.68% | 1,442,804 |
| Jan 6, 2026 | 5.67 | 5.72 | 4.23 | 4.41 | 4.41 | -20.40% | 4,097,406 |
| Jan 5, 2026 | 5.39 | 5.79 | 5.20 | 5.54 | 5.54 | 3.75% | 614,501 |
| Jan 2, 2026 | 5.04 | 5.40 | 4.96 | 5.34 | 5.34 | 8.10% | 469,215 |
| Dec 31, 2025 | 4.90 | 5.07 | 4.88 | 4.94 | 4.94 | 0.41% | 421,789 |
| Dec 30, 2025 | 5.07 | 5.12 | 4.90 | 4.92 | 4.92 | -3.34% | 574,179 |
| Dec 29, 2025 | 5.05 | 5.20 | 5.00 | 5.09 | 5.09 | -1.74% | 375,139 |
| Dec 26, 2025 | 5.29 | 5.34 | 5.06 | 5.18 | 5.18 | -2.81% | 420,082 |
| Dec 24, 2025 | 5.22 | 5.35 | 5.13 | 5.33 | 5.33 | 1.91% | 222,046 |
| Dec 23, 2025 | 5.05 | 5.28 | 5.02 | 5.23 | 5.23 | 2.35% | 363,687 |
| Dec 22, 2025 | 5.13 | 5.33 | 4.96 | 5.11 | 5.11 | 1.39% | 637,094 |
| Dec 19, 2025 | 4.72 | 5.50 | 4.62 | 5.04 | 5.04 | 7.23% | 2,087,032 |
| Dec 18, 2025 | 4.97 | 5.27 | 4.68 | 4.70 | 4.70 | -1.67% | 1,403,220 |
| Dec 17, 2025 | 5.30 | 5.39 | 4.64 | 4.78 | 4.78 | -10.49% | 1,782,873 |
| Dec 16, 2025 | 5.83 | 5.91 | 5.25 | 5.34 | 5.34 | -8.56% | 699,173 |
| Dec 15, 2025 | 6.30 | 6.30 | 5.81 | 5.84 | 5.84 | -3.15% | 442,771 |
| Dec 12, 2025 | 6.40 | 6.70 | 5.88 | 6.03 | 6.03 | -6.80% | 534,452 |
| Dec 11, 2025 | 6.51 | 6.54 | 6.08 | 6.47 | 6.47 | -1.37% | 483,219 |
| Dec 10, 2025 | 6.72 | 6.75 | 6.42 | 6.56 | 6.56 | -3.39% | 300,094 |
| Dec 9, 2025 | 6.74 | 6.85 | 6.59 | 6.79 | 6.79 | -0.88% | 279,353 |
| Dec 8, 2025 | 6.96 | 7.06 | 6.67 | 6.85 | 6.85 | -2.28% | 287,679 |
| Dec 5, 2025 | 7.34 | 7.48 | 6.91 | 7.01 | 7.01 | -3.97% | 316,382 |
| Dec 4, 2025 | 7.01 | 7.51 | 6.85 | 7.30 | 7.30 | 3.55% | 543,222 |
| Dec 3, 2025 | 6.49 | 7.10 | 6.31 | 7.05 | 7.05 | 9.47% | 333,127 |