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3.65
12.89%
-0.54
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 August 14, 2026, is $3.65.
- 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 88.14% to $3.65 now.
- The 52-week high stock price for TGEN is $12.07, representing a 230.68% increase from the current share price, occurred on October 15, 2025.
- The 52-week low stock price for TGEN is $1.94, indicating a -46.85% decrease from the current share price, occurred on March 18, 2026.
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 |
|---|---|---|---|---|---|
| Aug 14, 2026 | $4.13 | $3.56 | $0.57 | 356,167.0 | -12.89% |
| Aug 13, 2026 | $4.43 | $3.65 | $0.78 | 335,446.0 | +4.49% |
| Aug 12, 2026 | $4.14 | $3.94 | $0.205 | 168,524.0 | -1.23% |
| Aug 11, 2026 | $4.06 | $3.90 | $0.16 | 71,924.0 | +4.64% |
| Aug 10, 2026 | $4.00 | $3.83 | $0.17 | 92,777.0 | -0.26% |
| Aug 07, 2026 | $4.00 | $3.77 | $0.2299 | 102,291.0 | +4.29% |
| Aug 06, 2026 | $3.86 | $3.70 | $0.1599 | 164,556.0 | -0.80% |
| Aug 05, 2026 | $3.97 | $3.61 | $0.3599 | 155,837.0 | +0.53% |
| Aug 04, 2026 | $3.88 | $3.71 | $0.17 | 169,159.0 | +2.47% |
| Aug 03, 2026 | $3.67 | $3.36 | $0.31 | 195,695.0 | +9.61% |
| Jul 31, 2026 | $3.37 | $3.22 | $0.15 | 70,689.0 | +4.06% |
| Jul 30, 2026 | $3.23 | $3.07 | $0.16 | 165,349.0 | +6.67% |
| Jul 29, 2026 | $3.30 | $2.91 | $0.3887 | 528,028.0 | -3.23% |
| Jul 28, 2026 | $3.39 | $3.07 | $0.32 | 396,779.0 | -7.19% |
| Jul 27, 2026 | $3.44 | $3.16 | $0.2823 | 295,762.0 | +3.73% |
| Jul 24, 2026 | $3.38 | $3.15 | $0.23 | 352,939.0 | -5.29% |
| Jul 23, 2026 | $3.64 | $3.34 | $0.30 | 274,539.0 | -3.95% |
| Jul 22, 2026 | $3.74 | $3.48 | $0.2598 | 226,552.0 | -1.39% |
| Jul 21, 2026 | $3.59 | $3.32 | $0.27 | 323,264.0 | +4.06% |
| Jul 20, 2026 | $3.70 | $3.41 | $0.2882 | 143,522.0 | -2.82% |
| Jul 17, 2026 | $3.68 | $3.49 | $0.19 | 373,250.0 | -4.83% |
| Jul 16, 2026 | $4.08 | $3.63 | $0.445 | 246,552.0 | -5.57% |
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 |
|---|---|---|---|---|---|
| Aug, 2026 | $4.43 | $3.36 | $1.07 | 2,168,543.0 | +9.61% |
| 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% |
3.05%
0.37%
Cap:
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Volume (24h):