NYSE:TGEN | Historical Stock Price | TECOGEN INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2014-05-20 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.60$1.06$1.87$3.30$5.83$10.292014-05-202026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$0.81$0.8164,700
2023-12-28$0.79$0.7910,300
2023-12-27$0.75$0.7535,200
2023-12-26$0.82$0.821,700
2023-12-22$0.80$0.8040,500
2023-12-21$0.81$0.810
2023-12-20$0.81$0.8121,800
2023-12-19$0.84$0.840
2023-12-18$0.84$0.84300
2023-12-15$0.84$0.844,400
2023-12-14$0.81$0.8173,400
2023-12-13$0.81$0.81300
2023-12-12$0.80$0.800
2023-12-11$0.80$0.80500
2023-12-08$0.90$0.90200
2023-12-07$0.81$0.813,500
2023-12-06$0.80$0.80200
2023-12-05$0.79$0.7846,200
2023-12-04$0.89$0.89800
2023-12-01$0.83$0.832,300
2023-11-30$0.88$0.88800
2023-11-29$0.90$0.903,100
2023-11-28$0.90$0.90400
2023-11-27$0.86$0.867,800
2023-11-24$0.87$0.878,000
2023-11-22$0.83$0.83300
2023-11-21$0.82$0.820
2023-11-20$0.82$0.829,500
2023-11-17$0.85$0.8546,500
2023-11-16$0.87$0.870
2023-11-15$0.87$0.870
2023-11-14$0.87$0.874,000
2023-11-13$0.87$0.87500
2023-11-10$0.83$0.834,000
2023-11-09$0.87$0.87900
2023-11-08$0.90$0.90500
2023-11-07$0.90$0.900
2023-11-06$0.90$0.90200
2023-11-03$0.89$0.89300
2023-11-02$0.90$0.904,000
2023-11-01$0.82$0.82200
2023-10-31$0.82$0.821,500
2023-10-30$0.88$0.88200
2023-10-27$0.82$0.827,800
2023-10-26$0.88$0.882,900
2023-10-25$0.91$0.91200
2023-10-24$0.91$0.911,500
2023-10-23$0.92$0.9226,100
2023-10-20$0.91$0.910
2023-10-19$0.91$0.918,400
2023-10-18$0.91$0.9126,800
2023-10-17$0.92$0.9298,100
2023-10-16$0.78$0.784,100
2023-10-13$0.80$0.808,100
2023-10-12$0.79$0.7958,000
2023-10-11$0.79$0.790
2023-10-10$0.79$0.7914,600
2023-10-09$0.79$0.797,400
2023-10-06$0.79$0.7913,100
2023-10-05$0.80$0.8012,600
2023-10-04$0.80$0.8023,000
2023-10-03$0.84$0.8420,100
2023-10-02$0.87$0.875,400
2023-09-29$0.85$0.8512,300
2023-09-28$0.98$0.981,200
2023-09-27$0.91$0.912,400
2023-09-26$0.90$0.905,100
2023-09-25$0.91$0.91100
2023-09-22$0.92$0.921,600
2023-09-21$0.92$0.92100
2023-09-20$0.88$0.88100
2023-09-19$0.88$0.888,500
2023-09-18$0.90$0.903,000
2023-09-15$0.93$0.930
2023-09-14$0.93$0.9318,700
2023-09-13$0.88$0.884,600
2023-09-12$0.95$0.959,600
2023-09-11$0.95$0.9518,200
2023-09-08$0.95$0.9536,500
2023-09-07$1.00$1.00300
2023-09-06$1.00$1.002,700
2023-09-05$1.00$1.0042,100
2023-09-01$0.95$0.9511,300
2023-08-31$1.02$1.021,200
2023-08-30$0.99$0.9934,000
2023-08-29$1.03$1.031,000
2023-08-28$1.04$1.041,900
2023-08-25$1.02$1.023,300
2023-08-24$1.02$1.021,300
2023-08-23$1.02$1.022,800
2023-08-22$1.10$1.1013,200
2023-08-21$1.12$1.12900
2023-08-18$1.14$1.148,600
2023-08-17$1.19$1.197,300
2023-08-16$1.02$1.02200
2023-08-15$1.02$1.0214,900
2023-08-14$1.00$1.001,500
2023-08-11$1.00$1.003,600
2023-08-10$1.00$1.0021,800
2023-08-09$1.09$1.091,700
2023-08-08$1.12$1.12300
2023-08-07$1.19$1.19900
2023-08-04$1.09$1.09200
2023-08-03$1.06$1.061,100
2023-08-02$1.06$1.062,800
2023-08-01$1.21$1.21400
2023-07-31$1.20$1.201,800
2023-07-28$1.15$1.150
2023-07-27$1.15$1.15200
2023-07-26$1.11$1.113,500
2023-07-25$1.16$1.16100
2023-07-24$1.07$1.072,800
2023-07-21$1.22$1.22400
2023-07-20$1.13$1.131,200
2023-07-19$1.12$1.12400
2023-07-18$1.27$1.275,100
2023-07-17$1.23$1.234,900
2023-07-14$1.13$1.135,300
2023-07-13$1.13$1.136,600
2023-07-12$1.20$1.2017,300
2023-07-11$1.00$1.000
2023-07-10$1.00$1.000
2023-07-07$1.00$1.0013,100
2023-07-06$0.97$0.972,000
2023-07-05$0.99$0.99700
2023-07-03$0.99$0.992,900
2023-06-30$1.00$1.007,100
2023-06-29$0.99$0.996,200
2023-06-28$0.97$0.975,400
2023-06-27$1.00$1.001,000
2023-06-26$0.97$0.9718,000
2023-06-23$1.01$1.010
2023-06-22$1.01$1.016,300
2023-06-21$1.02$1.022,900
2023-06-20$1.00$1.0023,100
2023-06-16$1.07$1.072,500
2023-06-15$1.07$1.076,000
2023-06-14$1.13$1.137,600
2023-06-13$1.11$1.113,300
2023-06-12$1.06$1.065,500
2023-06-09$1.04$1.043,600
2023-06-08$1.02$1.023,200
2023-06-07$1.01$1.0116,200
2023-06-06$1.00$1.0025,100
2023-06-05$1.15$1.15100
2023-06-02$1.15$1.154,000
2023-06-01$1.09$1.09800
2023-05-31$1.09$1.09100
2023-05-30$1.09$1.091,500
2023-05-26$1.08$1.082,400
2023-05-25$1.17$1.171,000
2023-05-24$1.15$1.150
2023-05-23$1.15$1.151,700
2023-05-22$1.15$1.15100
2023-05-19$1.07$1.070
2023-05-18$1.07$1.07400
2023-05-17$1.07$1.07700
2023-05-16$1.19$1.193,300
2023-05-15$1.00$1.0013,700
2023-05-12$0.96$0.960
2023-05-11$0.96$0.960
2023-05-10$0.96$0.96100
2023-05-09$0.93$0.93200
2023-05-08$0.86$0.860
2023-05-05$0.86$0.8644,700
2023-05-04$0.95$0.9530,700
2023-05-03$1.02$1.020
2023-05-02$1.02$1.021,300
2023-05-01$1.06$1.060
2023-04-28$1.06$1.062,900
2023-04-27$1.11$1.112,100
2023-04-26$1.11$1.110
2023-04-25$1.11$1.110
2023-04-24$1.11$1.11500
2023-04-21$1.09$1.090
2023-04-20$1.09$1.090
2023-04-19$1.09$1.094,500
2023-04-18$1.05$1.05700
2023-04-17$1.23$1.233,700
2023-04-14$1.21$1.2137,800
2023-04-13$1.19$1.191,100
2023-04-12$1.17$1.17700
2023-04-11$1.11$1.111,400
2023-04-10$1.17$1.171,200
2023-04-06$1.15$1.15100
2023-04-05$1.15$1.151,000
2023-04-04$1.15$1.15300
2023-04-03$1.19$1.190
2023-03-31$1.19$1.191,000
2023-03-30$1.19$1.19900
2023-03-29$1.15$1.1527,900
2023-03-28$1.17$1.1735,600
2023-03-27$1.00$1.0016,900
2023-03-24$0.98$0.9870,800
2023-03-23$0.90$0.9012,400
2023-03-22$0.87$0.8710,200
2023-03-21$0.88$0.8826,400
2023-03-20$0.87$0.8761,700
2023-03-17$0.84$0.8454,800
2023-03-16$0.79$0.79135,700
2023-03-15$1.05$1.05100
2023-03-14$1.10$1.10400
2023-03-13$1.13$1.130
2023-03-10$1.13$1.130
2023-03-09$1.13$1.13200
2023-03-08$1.07$1.07200
2023-03-07$1.12$1.12400
2023-03-06$1.03$1.03100
2023-03-03$1.16$1.160
2023-03-02$1.16$1.160
2023-03-01$1.16$1.162,200
2023-02-28$1.17$1.173,100
2023-02-27$1.05$1.05500
2023-02-24$1.00$1.004,100
2023-02-23$1.00$1.001,800
2023-02-22$1.00$1.001,200
2023-02-21$0.97$0.9713,500
2023-02-17$1.03$1.0311,900
2023-02-16$1.02$1.027,800
2023-02-15$1.11$1.11100
2023-02-14$1.17$1.17400
2023-02-13$1.06$1.062,600
2023-02-10$1.19$1.19100
2023-02-09$1.12$1.124,700
2023-02-08$1.23$1.23200
2023-02-07$1.24$1.240
2023-02-06$1.24$1.24100
2023-02-03$1.25$1.256,100
2023-02-02$1.26$1.260
2023-02-01$1.26$1.265,100
2023-01-31$1.23$1.230
2023-01-30$1.23$1.23100
2023-01-27$1.23$1.23700
2023-01-26$1.21$1.21600
2023-01-25$1.07$1.076,900
2023-01-24$1.06$1.0615,600
2023-01-23$1.07$1.07300
2023-01-20$1.10$1.10300
2023-01-19$1.10$1.101,500
2023-01-18$1.03$1.0330,900
2023-01-17$1.20$1.209,700
2023-01-13$1.23$1.231,000
2023-01-12$1.23$1.232,300
2023-01-11$1.25$1.25100
2023-01-10$1.25$1.258,400
2023-01-09$1.27$1.2722,000
2023-01-06$1.24$1.240
2023-01-05$1.24$1.24500
2023-01-04$1.21$1.2112,300
2023-01-03$1.25$1.257,000