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.

View year

Historical Stock Price — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$1.22$1.2241,100——
2020-12-30$1.12$1.1236,600——
2020-12-29$1.14$1.1413,600——
2020-12-28$1.19$1.1910,600——
2020-12-24$1.17$1.173,700——
2020-12-23$1.19$1.1917,000——
2020-12-22$1.16$1.168,100——
2020-12-21$1.13$1.1317,300——
2020-12-18$1.10$1.1041,100——
2020-12-17$1.12$1.1260,400——
2020-12-16$1.17$1.1749,900——
2020-12-15$1.10$1.1084,000——
2020-12-14$1.17$1.1764,500——
2020-12-11$1.30$1.3017,300——
2020-12-10$1.33$1.3326,600——
2020-12-09$1.41$1.4114,600——
2020-12-08$1.59$1.5910,500——
2020-12-07$1.45$1.459,500——
2020-12-04$1.45$1.456,000——
2020-12-03$1.44$1.44164,300——
2020-12-02$1.39$1.3930,900——
2020-12-01$1.20$1.203,400——
2020-11-30$1.20$1.2022,600——
2020-11-27$1.36$1.3617,700——
2020-11-25$1.28$1.283,900——
2020-11-24$1.33$1.3346,100——
2020-11-23$1.23$1.2355,100——
2020-11-20$1.19$1.191,400——
2020-11-19$1.21$1.211,600——
2020-11-18$1.21$1.212,500——
2020-11-17$1.19$1.1911,400——
2020-11-16$1.15$1.1513,600——
2020-11-13$1.05$1.0525,400——
2020-11-12$1.03$1.03146,000——
2020-11-11$1.25$1.254,100——
2020-11-10$1.26$1.265,100——
2020-11-09$1.12$1.129,200——
2020-11-06$1.14$1.1445,600——
2020-11-05$1.14$1.1411,800——
2020-11-04$1.19$1.198,600——
2020-11-03$1.20$1.2039,500——
2020-11-02$1.07$1.076,300——
2020-10-30$1.06$1.068,200——
2020-10-29$1.18$1.1812,800——
2020-10-28$1.20$1.205,300——
2020-10-27$1.23$1.2325,700——
2020-10-26$1.18$1.1836,900——
2020-10-23$1.20$1.2030,100——
2020-10-22$1.10$1.109,000——
2020-10-21$1.05$1.05300——
2020-10-20$1.05$1.0517,600——
2020-10-19$1.10$1.1016,600——
2020-10-16$1.07$1.0722,400——
2020-10-15$1.12$1.1212,200——
2020-10-14$1.19$1.1989,000——
2020-10-13$1.04$1.0470,500——
2020-10-12$1.23$1.2323,900——
2020-10-09$1.20$1.2033,100——
2020-10-08$1.14$1.1447,300——
2020-10-07$1.10$1.1049,200——
2020-10-06$1.15$1.1518,600——
2020-10-05$1.08$1.0844,700——
2020-10-02$1.01$1.0162,600——
2020-10-01$1.00$1.0057,000——
2020-09-30$0.91$0.9198,900——
2020-09-29$0.82$0.8220,500——
2020-09-28$0.82$0.8254,600——
2020-09-25$0.83$0.837,000——
2020-09-24$0.75$0.7523,800——
2020-09-23$0.75$0.7526,900——
2020-09-22$0.84$0.8433,700——
2020-09-21$0.78$0.784,000——
2020-09-18$0.75$0.753,000——
2020-09-17$0.79$0.794,000——
2020-09-16$0.80$0.8037,000——
2020-09-15$0.73$0.73700——
2020-09-14$0.77$0.775,500——
2020-09-11$0.70$0.7033,200——
2020-09-10$0.76$0.763,600——
2020-09-09$0.80$0.801,800——
2020-09-08$0.78$0.7816,300——
2020-09-04$0.79$0.7985,400——
2020-09-03$0.77$0.7710,000——
2020-09-02$0.79$0.788,500——
2020-09-01$0.78$0.7813,200——
2020-08-31$0.79$0.7912,200——
2020-08-28$0.88$0.882,800——
2020-08-27$0.79$0.7829,000——
2020-08-26$0.86$0.8614,800——
2020-08-25$0.85$0.8533,600——
2020-08-24$0.82$0.8252,200——
2020-08-21$0.79$0.7919,900——
2020-08-20$0.84$0.8416,500——
2020-08-19$0.84$0.8453,800——
2020-08-18$0.75$0.7530,500——
2020-08-17$0.79$0.791,500——
2020-08-14$0.80$0.8020,100——
2020-08-13$0.75$0.7514,200——
2020-08-12$0.73$0.734,400——
2020-08-11$0.69$0.6985,200——
2020-08-10$0.84$0.8438,100——
2020-08-07$0.85$0.8513,900——
2020-08-06$0.81$0.817,000——
2020-08-05$0.85$0.856,100——
2020-08-04$0.85$0.8530,300——
2020-08-03$0.81$0.819,000——
2020-07-31$0.81$0.8114,000——
2020-07-30$0.79$0.793,100——
2020-07-29$0.78$0.7820,600——
2020-07-28$0.78$0.786,900——
2020-07-27$0.78$0.7825,300——
2020-07-24$0.80$0.804,100——
2020-07-23$0.75$0.751,600——
2020-07-22$0.77$0.774,900——
2020-07-21$0.80$0.8061,900——
2020-07-20$0.74$0.74800——
2020-07-17$0.75$0.7512,000——
2020-07-16$0.80$0.8040,600——
2020-07-15$0.74$0.7432,800——
2020-07-14$0.71$0.7111,200——
2020-07-13$0.73$0.7310,400——
2020-07-10$0.73$0.7314,400——
2020-07-09$0.71$0.711,900——
2020-07-08$0.75$0.759,200——
2020-07-07$0.73$0.733,800——
2020-07-06$0.73$0.738,200——
2020-07-02$0.73$0.7318,300——
2020-07-01$0.71$0.7129,400——
2020-06-30$0.70$0.707,000——
2020-06-29$0.70$0.7037,200——
2020-06-26$0.72$0.7211,400——
2020-06-25$0.73$0.7323,200——
2020-06-24$0.72$0.7217,900——
2020-06-23$0.75$0.7546,900——
2020-06-22$0.75$0.7534,200——
2020-06-19$0.71$0.71108,300——
2020-06-18$0.81$0.8190,900——
2020-06-17$0.81$0.8198,500——
2020-06-16$0.77$0.7765,600——
2020-06-15$0.74$0.7458,800——
2020-06-12$0.73$0.7396,200——
2020-06-11$0.71$0.71105,500——
2020-06-10$0.75$0.75237,900——
2020-06-09$0.72$0.72539,400——
2020-06-08$0.89$0.89379,000——
2020-06-05$0.78$0.78521,700——
2020-06-04$0.77$0.77201,600——
2020-06-03$0.77$0.7795,000——
2020-06-02$0.72$0.72118,200——
2020-06-01$0.70$0.70305,400——
2020-05-29$0.66$0.661,066,200——
2020-05-28$0.86$0.8631,800——
2020-05-27$0.86$0.8669,100——
2020-05-26$0.86$0.8679,300——
2020-05-22$0.88$0.8861,700——
2020-05-21$0.91$0.9133,300——
2020-05-20$0.91$0.9173,100——
2020-05-19$0.92$0.9277,400——
2020-05-18$0.89$0.89134,400——
2020-05-15$0.82$0.82169,700——
2020-05-14$0.87$0.8793,900——
2020-05-13$0.90$0.90136,200——
2020-05-12$0.93$0.9353,700——
2020-05-11$0.94$0.9488,000——
2020-05-08$0.97$0.97183,900——
2020-05-07$0.98$0.98971,700——
2020-05-06$0.95$0.95209,000——
2020-05-05$1.01$1.0173,500——
2020-05-04$1.07$1.07377,200——
2020-05-01$1.03$1.0349,300——
2020-04-30$1.02$1.02151,300——
2020-04-29$1.00$1.00112,700——
2020-04-28$0.97$0.9759,200——
2020-04-27$1.02$1.0281,500——
2020-04-24$1.02$1.0276,800——
2020-04-23$1.02$1.02210,800——
2020-04-22$0.98$0.98250,300——
2020-04-21$1.01$1.01339,300——
2020-04-20$1.00$1.00765,900——
2020-04-17$0.95$0.95106,200——
2020-04-16$0.95$0.9553,500——
2020-04-15$0.98$0.989,100——
2020-04-14$0.94$0.9428,000——
2020-04-13$1.05$1.054,600——
2020-04-09$1.05$1.0541,400——
2020-04-08$1.03$1.0324,000——
2020-04-07$0.92$0.9220,500——
2020-04-06$0.90$0.9017,900——
2020-04-03$0.93$0.938,700——
2020-04-02$0.91$0.9124,600——
2020-04-01$0.95$0.9532,900——
2020-03-31$0.93$0.9327,400——
2020-03-30$0.95$0.956,000——
2020-03-27$1.01$1.0110,200——
2020-03-26$1.12$1.1221,600——
2020-03-25$1.15$1.157,700——
2020-03-24$1.15$1.151,700——
2020-03-23$1.14$1.1410,100——
2020-03-20$1.16$1.162,200——
2020-03-19$1.18$1.1823,300——
2020-03-18$1.10$1.10100——
2020-03-17$1.15$1.1525,700——
2020-03-16$1.35$1.3510,900——
2020-03-13$1.41$1.4132,800——
2020-03-12$1.81$1.815,800——
2020-03-11$1.85$1.85300——
2020-03-10$1.90$1.9012,700——
2020-03-09$1.90$1.909,800——
2020-03-06$2.02$2.0226,800——
2020-03-05$2.01$2.012,400——
2020-03-04$2.15$2.1532,900——
2020-03-03$2.03$2.031,200——
2020-03-02$2.02$2.029,900——
2020-02-28$2.00$2.0022,100——
2020-02-27$2.10$2.104,900——
2020-02-26$2.00$2.001,400——
2020-02-25$2.04$2.04800——
2020-02-24$1.97$1.9719,300——
2020-02-21$2.02$2.023,500——
2020-02-20$2.04$2.048,300——
2020-02-19$2.00$2.0030,500——
2020-02-18$2.00$2.004,700——
2020-02-14$1.92$1.9212,500——
2020-02-13$2.06$2.0614,300——
2020-02-12$2.03$2.0311,500——
2020-02-11$2.10$2.104,900——
2020-02-10$2.07$2.073,000——
2020-02-07$2.08$2.083,100——
2020-02-06$2.08$2.08500——
2020-02-05$2.09$2.094,900——
2020-02-04$2.07$2.0712,200——
2020-02-03$2.10$2.1027,000——
2020-01-31$2.12$2.1210,600——
2020-01-30$2.06$2.062,200——
2020-01-29$2.09$2.0923,300——
2020-01-28$2.08$2.0823,100——
2020-01-27$2.11$2.116,300——
2020-01-24$2.14$2.1465,600——
2020-01-23$2.15$2.154,400——
2020-01-22$2.15$2.1563,500——
2020-01-21$2.10$2.1014,600——
2020-01-17$2.10$2.108,100——
2020-01-16$2.10$2.108,200——
2020-01-15$2.13$2.134,200——
2020-01-14$2.11$2.114,100——
2020-01-13$2.11$2.119,600——
2020-01-10$2.14$2.1420,900——
2020-01-09$2.10$2.107,300——
2020-01-08$2.20$2.2038,200——
2020-01-07$2.13$2.1314,500——
2020-01-06$2.10$2.107,900——
2020-01-03$2.08$2.089,800——
2020-01-02$2.16$2.1634,400——