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 — 2017

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2017-12-29$2.70$2.7080,500
2017-12-28$2.58$2.5831,200
2017-12-27$2.54$2.5433,200
2017-12-26$2.63$2.6316,700
2017-12-22$2.64$2.6416,700
2017-12-21$2.71$2.7120,800
2017-12-20$2.72$2.7213,800
2017-12-19$2.50$2.5072,200
2017-12-18$2.62$2.6241,100
2017-12-15$2.52$2.5236,200
2017-12-14$2.86$2.8675,700
2017-12-13$2.78$2.7857,800
2017-12-12$2.71$2.7115,000
2017-12-11$2.70$2.7031,700
2017-12-08$2.79$2.7938,100
2017-12-07$2.78$2.7834,200
2017-12-06$2.60$2.6018,000
2017-12-05$2.72$2.7233,400
2017-12-04$2.55$2.5527,800
2017-12-01$2.49$2.4912,400
2017-11-30$2.46$2.4611,500
2017-11-29$2.48$2.487,000
2017-11-28$2.48$2.4837,500
2017-11-27$2.39$2.3927,100
2017-11-24$2.43$2.4318,700
2017-11-22$2.52$2.529,100
2017-11-21$2.43$2.4326,900
2017-11-20$2.46$2.4627,200
2017-11-17$2.48$2.4813,200
2017-11-16$2.48$2.486,900
2017-11-15$2.50$2.508,100
2017-11-14$2.46$2.4615,800
2017-11-13$2.53$2.53109,300
2017-11-10$2.32$2.32101,200
2017-11-09$2.77$2.7726,000
2017-11-08$3.02$3.026,400
2017-11-07$2.95$2.959,600
2017-11-06$2.97$2.9718,400
2017-11-03$2.91$2.9124,900
2017-11-02$2.93$2.9316,900
2017-11-01$2.93$2.9311,100
2017-10-31$3.02$3.0219,600
2017-10-30$2.85$2.8535,400
2017-10-27$2.87$2.8714,000
2017-10-26$3.04$3.049,200
2017-10-25$3.00$3.001,200
2017-10-24$2.98$2.984,500
2017-10-23$2.97$2.973,400
2017-10-20$3.00$3.0028,600
2017-10-19$2.95$2.953,900
2017-10-18$2.99$2.999,400
2017-10-17$2.97$2.9719,800
2017-10-16$2.96$2.9611,500
2017-10-13$2.96$2.96107,500
2017-10-12$3.02$3.0214,200
2017-10-11$3.10$3.1012,500
2017-10-10$3.15$3.1512,500
2017-10-09$3.18$3.187,200
2017-10-06$3.25$3.258,600
2017-10-05$3.28$3.2825,200
2017-10-04$3.17$3.178,900
2017-10-03$3.15$3.1529,300
2017-10-02$3.16$3.1613,100
2017-09-29$3.19$3.194,000
2017-09-28$3.25$3.256,100
2017-09-27$3.25$3.2512,700
2017-09-26$3.19$3.1913,000
2017-09-25$3.31$3.3154,800
2017-09-22$3.29$3.2940,300
2017-09-21$3.28$3.2816,300
2017-09-20$3.30$3.3046,200
2017-09-19$3.10$3.1018,800
2017-09-18$3.12$3.128,500
2017-09-15$3.04$3.0420,400
2017-09-14$3.18$3.1826,000
2017-09-13$3.16$3.1624,300
2017-09-12$3.28$3.282,300
2017-09-11$3.30$3.3018,600
2017-09-08$3.37$3.3723,300
2017-09-07$3.22$3.2252,400
2017-09-06$3.27$3.2719,600
2017-09-05$3.10$3.1015,900
2017-09-01$3.03$3.039,500
2017-08-31$3.00$3.0012,500
2017-08-30$3.06$3.069,300
2017-08-29$3.07$3.073,400
2017-08-28$3.00$3.0018,200
2017-08-25$3.06$3.068,900
2017-08-24$3.07$3.0711,300
2017-08-23$3.10$3.105,600
2017-08-22$3.11$3.118,500
2017-08-21$3.22$3.2210,400
2017-08-18$3.27$3.2710,100
2017-08-17$3.21$3.214,600
2017-08-16$3.27$3.274,800
2017-08-15$3.29$3.2917,400
2017-08-14$3.30$3.307,100
2017-08-11$3.27$3.2719,300
2017-08-10$3.22$3.227,800
2017-08-09$3.22$3.2210,100
2017-08-08$3.30$3.308,300
2017-08-07$3.38$3.3818,800
2017-08-04$3.40$3.4022,700
2017-08-03$3.33$3.3321,500
2017-08-02$3.48$3.4817,300
2017-08-01$3.44$3.449,000
2017-07-31$3.46$3.4621,400
2017-07-28$3.49$3.4925,900
2017-07-27$3.35$3.359,900
2017-07-26$3.33$3.3317,000
2017-07-25$3.26$3.2632,500
2017-07-24$3.30$3.3017,600
2017-07-21$3.30$3.3025,400
2017-07-20$3.35$3.3526,000
2017-07-19$3.27$3.277,900
2017-07-18$3.30$3.3017,000
2017-07-17$3.30$3.3023,500
2017-07-14$3.31$3.3120,400
2017-07-13$3.26$3.268,600
2017-07-12$3.27$3.2754,300
2017-07-11$3.18$3.1815,100
2017-07-10$3.24$3.2422,000
2017-07-07$3.33$3.3344,900
2017-07-06$3.23$3.2319,800
2017-07-05$3.23$3.2325,800
2017-07-03$3.31$3.319,000
2017-06-30$3.33$3.3319,700
2017-06-29$3.32$3.328,700
2017-06-28$3.32$3.3217,100
2017-06-27$3.35$3.3521,300
2017-06-26$3.44$3.4470,000
2017-06-23$3.50$3.5032,200
2017-06-22$3.40$3.4026,900
2017-06-21$3.36$3.36188,400
2017-06-20$3.21$3.2148,700
2017-06-19$3.40$3.4017,300
2017-06-16$3.28$3.28101,300
2017-06-15$3.36$3.36111,500
2017-06-14$3.29$3.2935,600
2017-06-13$3.43$3.4312,600
2017-06-12$3.68$3.6813,600
2017-06-09$3.45$3.4513,800
2017-06-08$3.41$3.4143,400
2017-06-07$3.43$3.4359,100
2017-06-06$3.47$3.4725,000
2017-06-05$3.59$3.5933,600
2017-06-02$3.53$3.5336,600
2017-06-01$3.42$3.4227,200
2017-05-31$3.38$3.385,300
2017-05-30$3.45$3.4523,200
2017-05-26$3.51$3.5114,600
2017-05-25$3.57$3.5712,200
2017-05-24$3.29$3.2983,700
2017-05-23$3.42$3.4237,600
2017-05-22$3.55$3.5570,800
2017-05-19$3.75$3.7596,700
2017-05-18$4.02$4.0221,600
2017-05-17$3.99$3.992,400
2017-05-16$3.71$3.7110,400
2017-05-15$3.80$3.8016,200
2017-05-12$3.80$3.80600
2017-05-11$3.81$3.818,800
2017-05-10$3.87$3.874,400
2017-05-09$3.68$3.6814,900
2017-05-08$3.69$3.694,400
2017-05-05$3.68$3.6816,600
2017-05-04$3.68$3.688,300
2017-05-03$3.67$3.676,600
2017-05-02$3.71$3.712,600
2017-05-01$3.74$3.740
2017-04-28$3.74$3.74200
2017-04-27$3.72$3.721,500
2017-04-26$3.74$3.748,200
2017-04-25$3.70$3.707,800
2017-04-24$3.66$3.66600
2017-04-21$3.73$3.7321,700
2017-04-20$3.66$3.6611,800
2017-04-19$3.63$3.632,200
2017-04-18$3.64$3.647,500
2017-04-17$3.66$3.661,200
2017-04-13$3.68$3.6815,400
2017-04-12$3.69$3.696,800
2017-04-11$3.65$3.651,700
2017-04-10$3.78$3.789,400
2017-04-07$3.77$3.775,800
2017-04-06$3.69$3.698,300
2017-04-05$3.73$3.7313,500
2017-04-04$3.80$3.805,300
2017-04-03$3.69$3.696,500
2017-03-31$3.79$3.7912,000
2017-03-30$3.81$3.8115,000
2017-03-29$3.78$3.789,200
2017-03-28$3.69$3.698,300
2017-03-27$3.87$3.879,400
2017-03-24$3.73$3.73200
2017-03-23$3.72$3.726,100
2017-03-22$3.77$3.7718,100
2017-03-21$3.82$3.821,200
2017-03-20$3.86$3.861,300
2017-03-17$3.85$3.856,600
2017-03-16$3.79$3.795,200
2017-03-15$3.75$3.756,700
2017-03-14$3.84$3.846,100
2017-03-13$4.04$4.049,400
2017-03-10$3.77$3.7717,200
2017-03-09$3.88$3.889,200
2017-03-08$3.74$3.747,300
2017-03-07$3.64$3.6417,000
2017-03-06$3.60$3.609,400
2017-03-03$3.56$3.565,600
2017-03-02$3.65$3.652,100
2017-03-01$3.50$3.5022,100
2017-02-28$3.75$3.759,900
2017-02-27$3.80$3.8019,300
2017-02-24$3.89$3.8915,700
2017-02-23$3.81$3.812,400
2017-02-22$3.92$3.92300
2017-02-21$3.95$3.952,800
2017-02-17$3.92$3.9210,200
2017-02-16$3.85$3.8517,500
2017-02-15$3.84$3.841,900
2017-02-14$3.83$3.838,100
2017-02-13$3.90$3.9014,100
2017-02-10$3.92$3.9239,400
2017-02-09$4.01$4.0111,200
2017-02-08$4.07$4.074,100
2017-02-07$4.08$4.083,900
2017-02-06$4.02$4.0212,000
2017-02-03$4.09$4.091,100
2017-02-02$4.09$4.097,200
2017-02-01$4.15$4.1510,000
2017-01-31$4.10$4.1021,600
2017-01-30$4.24$4.243,400
2017-01-27$4.25$4.2517,700
2017-01-26$4.08$4.084,500
2017-01-25$4.26$4.2618,800
2017-01-24$4.03$4.032,700
2017-01-23$4.17$4.175,600
2017-01-20$4.06$4.064,500
2017-01-19$4.12$4.12300
2017-01-18$4.15$4.152,800
2017-01-17$4.06$4.0628,100
2017-01-13$4.00$4.000
2017-01-12$4.00$4.0041,500
2017-01-11$3.97$3.9716,100
2017-01-10$4.25$4.2511,600
2017-01-09$4.10$4.104,300
2017-01-06$4.21$4.2127,500
2017-01-05$4.23$4.2324,200
2017-01-04$3.86$3.8622,600
2017-01-03$3.94$3.943,900