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2.29
0.43%
-0.010
Tecogen Inc Stock (TGEN) Price History
The historical daily chart and data for Tecogen Inc stock (TGEN), show that the latest closing stock price as of October 15, 2026, is $2.29.
- Tecogen Inc all-time high stock price is $12.07, occurred on October 15, 2025.
- The lowest Tecogen Inc stock price recorded was $1.94 on March 18, 2026. Since then, Tecogen Inc's stock price has risen over 18.04% to $2.29 now.
- The 52-week high stock price for TGEN is $12.07, representing a 427.07% increase from the current share price, occurred on October 15, 2025.
- The 52-week low stock price for TGEN is $1.94, indicating a -15.28% decrease from the current share price, occurred on March 18, 2026.
- The closing price of Tecogen Inc (TGEN) stock in the beginning of 2025 was $3.23. The stock closed the year at $4.94, a gain of over 52.94% for the year.
The table below shows more information about TGEN historical price data:
Daily
Weekly
Monthly
7D
30D
60D
YTD
1Y
| Date | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Oct 15, 2026 | $2.29 | $2.21 | $0.08 | 71,914.0 | -0.43% |
| Oct 14, 2026 | $2.33 | $2.21 | $0.12 | 144,822.0 | +0.00% |
| Oct 13, 2026 | $2.39 | $2.26 | $0.13 | 86,587.0 | -2.13% |
| Oct 12, 2026 | $2.42 | $2.31 | $0.11 | 106,265.0 | -2.89% |
| Oct 09, 2026 | $2.53 | $2.38 | $0.1504 | 57,866.0 | -2.02% |
| Oct 08, 2026 | $2.77 | $2.35 | $0.42 | 254,352.0 | -10.51% |
| Oct 07, 2026 | $2.82 | $2.60 | $0.22 | 245,663.0 | +2.99% |
| Oct 06, 2026 | $2.77 | $2.51 | $0.26 | 86,069.0 | +5.51% |
| Oct 05, 2026 | $2.67 | $2.51 | $0.165 | 105,087.0 | -4.15% |
| Oct 02, 2026 | $2.78 | $2.63 | $0.15 | 91,428.0 | +0.00% |
| Oct 01, 2026 | $2.91 | $2.62 | $0.285 | 182,915.0 | -6.69% |
| Sep 30, 2026 | $3.10 | $2.73 | $0.37 | 375,611.0 | -3.73% |
| Sep 29, 2026 | $3.31 | $2.95 | $0.355 | 286,050.0 | -6.65% |
| Sep 28, 2026 | $3.24 | $2.98 | $0.2614 | 124,177.0 | +3.61% |
| Sep 25, 2026 | $3.20 | $2.95 | $0.25 | 64,384.0 | +0.99% |
| Sep 24, 2026 | $3.28 | $3.02 | $0.26 | 93,767.0 | -4.13% |
| Sep 23, 2026 | $3.33 | $3.10 | $0.23 | 99,945.0 | -5.12% |
| Sep 22, 2026 | $3.38 | $3.19 | $0.1899 | 129,961.0 | +0.30% |
| Sep 21, 2026 | $3.33 | $3.10 | $0.2252 | 198,647.0 | +6.09% |
| Sep 18, 2026 | $3.18 | $3.01 | $0.17 | 82,396.0 | +0.32% |
| Sep 17, 2026 | $3.15 | $2.99 | $0.158 | 120,097.0 | +5.78% |
| Sep 16, 2026 | $3.05 | $2.88 | $0.165 | 62,469.0 | -1.01% |
| Sep 15, 2026 | $3.03 | $2.92 | $0.1076 | 75,938.0 | -1.33% |
Tecogen Inc Stock (TGEN) Year by Year Price History
In this detailed analysis, we present a comprehensive overview of the price movements of Tecogen Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of TGEN shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Tecogen Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.
Tecogen Inc Stock (TGEN) Price History 2026
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Oct, 2026 | $2.91 | $2.21 | $0.70 | 1,432,968.0 | -19.37% |
| Sep, 2026 | $3.38 | $2.73 | $0.6499 | 3,149,991.0 | -7.19% |
| Aug, 2026 | $4.43 | $2.98 | $1.44 | 3,977,292.0 | -8.11% |
| Jul, 2026 | $5.45 | $2.91 | $2.54 | 5,894,698.0 | -36.21% |
| Jun, 2026 | $7.43 | $4.95 | $2.48 | 6,276,422.0 | -15.94% |
| May, 2026 | $7.18 | $3.65 | $3.53 | 12,633,268.0 | +29.92% |
| Apr, 2026 | $5.07 | $2.47 | $2.60 | 11,686,965.0 | +86.72% |
| Mar, 2026 | $3.59 | $1.94 | $1.65 | 10,161,369.0 | -26.22% |
| Feb, 2026 | $4.21 | $3.37 | $0.845 | 4,946,301.0 | -7.22% |
| Jan, 2026 | $5.79 | $3.71 | $2.08 | 14,447,532.0 | -24.29% |
Tecogen Inc Stock (TGEN) Price History 2025
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2025 | $7.51 | $4.62 | $2.89 | 13,154,768.0 | -34.05% |
| Nov, 2025 | $10.47 | $5.97 | $4.50 | 11,873,708.0 | -25.25% |
| Oct, 2025 | $12.07 | $7.82 | $4.25 | 21,523,925.0 | +13.28% |
| Sep, 2025 | $10.25 | $6.33 | $3.92 | 15,523,972.0 | +15.31% |
| Aug, 2025 | $11.55 | $7.20 | $4.35 | 18,847,169.0 | -21.07% |
| Jul, 2025 | $10.04 | $5.63 | $4.41 | 21,962,065.0 | +42.35% |
| Jun, 2025 | $7.85 | $4.52 | $3.33 | 9,609,568.0 | +43.46% |
| May, 2025 | $5.61 | $3.02 | $2.59 | 8,307,703.0 | +0.00% |
2.06%
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