8.40
price down icon4.65%   -0.41
after-market After Hours: 8.44 0.04 +0.48%
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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 01, 2025, is $8.40.
  • Tecogen Inc all-time high stock price is $11.55, occurred on August 13, 2025.
  • The lowest Tecogen Inc stock price recorded was $3.02 on May 08, 2025. Since then, Tecogen Inc's stock price has risen over 178.15% to $8.40 now.
  • The 52-week high stock price for TGEN is $11.55, representing a 37.50% increase from the current share price, occurred on August 13, 2025.
  • The 52-week low stock price for TGEN is $3.02, indicating a -64.05% decrease from the current share price, occurred on May 08, 2025.
The table below shows more information about TGEN historical price data:
Date High Low High - Low Volume % Change
Oct 01, 2025 $8.93 $8.27 $0.655 456,669.0 -4.65%
Sep 30, 2025 $8.95 $8.16 $0.79 615,380.0 +7.31%
Sep 29, 2025 $8.60 $7.98 $0.62 728,039.0 +4.59%
Sep 26, 2025 $8.25 $7.64 $0.6091 579,233.0 -3.92%
Sep 25, 2025 $8.48 $7.65 $0.83 660,929.0 -4.44%
Sep 24, 2025 $9.09 $8.22 $0.8623 497,605.0 -1.95%
Sep 23, 2025 $10.25 $8.60 $1.65 1,285,438.0 -3.75%
Sep 22, 2025 $9.59 $8.00 $1.59 1,182,916.0 +3.54%
Sep 19, 2025 $8.95 $7.44 $1.51 1,665,047.0 +20.03%
Sep 18, 2025 $7.64 $7.17 $0.47 556,634.0 +2.53%
Sep 17, 2025 $7.41 $6.90 $0.51 431,775.0 +1.43%
Sep 16, 2025 $7.60 $6.92 $0.68 533,680.0 -4.63%
Sep 15, 2025 $7.39 $7.00 $0.39 490,827.0 +7.30%
Sep 12, 2025 $7.19 $6.85 $0.34 358,806.0 -3.39%
Sep 11, 2025 $7.25 $6.91 $0.3385 457,562.0 -1.12%
Sep 10, 2025 $7.38 $6.85 $0.53 698,309.0 +8.14%
Sep 09, 2025 $7.20 $6.61 $0.59 1,084,011.0 +0.30%
Sep 08, 2025 $7.12 $6.33 $0.785 1,222,313.0 -6.11%
Sep 05, 2025 $7.26 $6.64 $0.6164 561,234.0 +0.43%
Sep 04, 2025 $7.20 $6.78 $0.42 565,859.0 -0.14%
Sep 03, 2025 $7.83 $6.94 $0.8896 825,847.0 -5.14%

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 2025

Month High Low High - Low Volume % Change
Oct, 2025 $8.93 $8.27 $0.655 456,669.0 +0.00%
Sep, 2025 $10.25 $6.33 $3.92 15,980,641.0 +9.95%
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%
$2.93
price up icon 25.75%
$12.37
price up icon 8.60%
$317.22
price up icon 4.07%
electrical_equipment_parts ENS
$115.04
price up icon 1.84%
$176.19
price up icon 3.56%
electrical_equipment_parts AYI
$363.00
price up icon 5.40%
Cap:     |  Volume (24h):