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 — 2024

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2024-12-31$1.47$1.473,100
2024-12-30$1.45$1.454,200
2024-12-27$1.45$1.458,600
2024-12-26$1.49$1.496,500
2024-12-24$1.42$1.4239,500
2024-12-23$1.55$1.5565,500
2024-12-20$1.59$1.5945,900
2024-12-19$1.59$1.5928,300
2024-12-18$1.56$1.5644,800
2024-12-17$1.74$1.7433,800
2024-12-16$1.73$1.7311,500
2024-12-13$1.72$1.7219,300
2024-12-12$1.85$1.8540,500
2024-12-11$1.90$1.9040,000
2024-12-10$1.82$1.8233,600
2024-12-09$1.76$1.76153,300
2024-12-06$1.70$1.7096,000
2024-12-05$1.75$1.75147,700
2024-12-04$1.40$1.40237,000
2024-12-03$1.40$1.40634,100
2024-12-02$1.12$1.1276,400
2024-11-29$0.93$0.9361,300
2024-11-27$0.90$0.9081,900
2024-11-26$0.89$0.89130,900
2024-11-25$0.90$0.9053,800
2024-11-22$0.91$0.9121,400
2024-11-21$0.86$0.8627,000
2024-11-20$0.90$0.9071,500
2024-11-19$0.91$0.9165,900
2024-11-18$0.90$0.908,000
2024-11-15$0.92$0.9241,800
2024-11-14$0.91$0.9130,300
2024-11-13$0.90$0.901,000
2024-11-12$0.87$0.870
2024-11-11$0.87$0.8714,800
2024-11-08$0.95$0.951,000
2024-11-07$0.86$0.8615,100
2024-11-06$0.85$0.851,300
2024-11-05$0.88$0.8811,700
2024-11-04$0.85$0.854,900
2024-11-01$0.86$0.8612,600
2024-10-31$0.85$0.854,000
2024-10-30$0.83$0.833,700
2024-10-29$0.85$0.8513,700
2024-10-28$0.86$0.8622,600
2024-10-25$0.92$0.922,600
2024-10-24$0.91$0.9110,200
2024-10-23$0.89$0.8910,900
2024-10-22$0.90$0.907,500
2024-10-21$0.90$0.9052,700
2024-10-18$0.90$0.9082,100
2024-10-17$0.90$0.903,700
2024-10-16$0.90$0.901,700
2024-10-15$0.91$0.91296,100
2024-10-14$0.84$0.844,100
2024-10-11$0.85$0.8525,700
2024-10-10$0.84$0.840
2024-10-09$0.84$0.840
2024-10-08$0.84$0.84100
2024-10-07$0.85$0.85400
2024-10-04$0.85$0.852,000
2024-10-03$0.85$0.851,100
2024-10-02$0.81$0.817,700
2024-10-01$0.81$0.819,200
2024-09-30$0.84$0.8420,100
2024-09-27$0.82$0.8214,300
2024-09-26$0.84$0.8410,500
2024-09-25$0.82$0.829,800
2024-09-24$0.83$0.8339,500
2024-09-23$0.85$0.8524,500
2024-09-20$0.86$0.8612,700
2024-09-19$0.89$0.899,900
2024-09-18$0.89$0.892,300
2024-09-17$0.89$0.894,800
2024-09-16$0.89$0.891,000
2024-09-13$0.89$0.8912,300
2024-09-12$0.89$0.89500
2024-09-11$0.85$0.859,100
2024-09-10$0.89$0.892,000
2024-09-09$0.86$0.862,900
2024-09-06$0.90$0.9014,500
2024-09-05$0.90$0.9061,400
2024-09-04$0.97$0.97100
2024-09-03$0.98$0.9814,800
2024-08-30$1.05$1.055,800
2024-08-29$1.04$1.04800
2024-08-28$1.04$1.043,900
2024-08-27$1.05$1.057,100
2024-08-26$1.08$1.0822,900
2024-08-23$1.07$1.0772,800
2024-08-22$1.07$1.0740,800
2024-08-21$1.06$1.0623,800
2024-08-20$0.92$0.929,900
2024-08-19$0.89$0.8942,700
2024-08-16$0.82$0.825,500
2024-08-15$0.80$0.804,000
2024-08-14$0.77$0.777,900
2024-08-13$0.86$0.864,500
2024-08-12$0.86$0.864,500
2024-08-09$0.84$0.84142,300
2024-08-08$0.80$0.80122,400
2024-08-07$0.69$0.691,000
2024-08-06$0.69$0.6923,400
2024-08-05$0.69$0.697,700
2024-08-02$0.70$0.7023,700
2024-08-01$0.71$0.713,100
2024-07-31$0.71$0.711,800
2024-07-30$0.72$0.7214,500
2024-07-29$0.72$0.721,400
2024-07-26$0.71$0.715,000
2024-07-25$0.71$0.715,900
2024-07-24$0.71$0.711,500
2024-07-23$0.70$0.704,100
2024-07-22$0.73$0.731,800
2024-07-19$0.75$0.750
2024-07-18$0.75$0.7520,500
2024-07-17$0.70$0.7052,600
2024-07-16$0.79$0.7952,100
2024-07-15$0.76$0.7640,600
2024-07-12$0.66$0.6617,700
2024-07-11$0.73$0.730
2024-07-10$0.73$0.73108,000
2024-07-09$0.69$0.698,000
2024-07-08$0.74$0.740
2024-07-05$0.74$0.74300
2024-07-03$0.72$0.721,000
2024-07-02$0.70$0.701,000
2024-07-01$0.69$0.6911,500
2024-06-28$0.76$0.7619,900
2024-06-27$0.69$0.691,600
2024-06-26$0.69$0.6910,000
2024-06-25$0.73$0.734,700
2024-06-24$0.73$0.7319,400
2024-06-21$0.71$0.71800
2024-06-20$0.73$0.73100
2024-06-18$0.73$0.731,000
2024-06-17$0.72$0.7224,200
2024-06-14$0.74$0.74300
2024-06-13$0.72$0.721,000
2024-06-12$0.72$0.7210,000
2024-06-11$0.74$0.740
2024-06-10$0.74$0.741,800
2024-06-07$0.77$0.7716,500
2024-06-06$0.77$0.77600
2024-06-05$0.73$0.732,200
2024-06-04$0.73$0.731,500
2024-06-03$0.76$0.7623,600
2024-05-31$0.75$0.754,400
2024-05-30$0.80$0.80400
2024-05-29$0.75$0.7513,300
2024-05-28$0.75$0.754,900
2024-05-24$0.80$0.8011,700
2024-05-23$0.77$0.772,100
2024-05-22$0.76$0.765,400
2024-05-21$0.79$0.7918,700
2024-05-20$0.80$0.802,600
2024-05-17$0.79$0.79900
2024-05-16$0.77$0.775,600
2024-05-15$0.74$0.7410,500
2024-05-14$0.70$0.701,600
2024-05-13$0.69$0.6910,300
2024-05-10$0.69$0.6921,300
2024-05-09$0.70$0.703,800
2024-05-08$0.70$0.701,000
2024-05-07$0.68$0.6848,300
2024-05-06$0.81$0.815,500
2024-05-03$0.81$0.810
2024-05-02$0.81$0.81800
2024-05-01$0.75$0.7535,300
2024-04-30$0.79$0.7918,700
2024-04-29$0.72$0.7212,000
2024-04-26$0.80$0.804,100
2024-04-25$0.73$0.7314,700
2024-04-24$0.68$0.6820,400
2024-04-23$0.69$0.696,600
2024-04-22$0.69$0.692,300
2024-04-19$0.63$0.6356,100
2024-04-18$0.68$0.682,400
2024-04-17$0.66$0.66200
2024-04-16$0.68$0.6813,200
2024-04-15$0.67$0.6716,300
2024-04-12$0.70$0.704,000
2024-04-11$0.70$0.702,200
2024-04-10$0.70$0.701,400
2024-04-09$0.70$0.7011,200
2024-04-08$0.75$0.753,800
2024-04-05$0.69$0.692,300
2024-04-04$0.68$0.68300
2024-04-03$0.70$0.700
2024-04-02$0.70$0.703,000
2024-04-01$0.70$0.706,100
2024-03-28$0.70$0.702,400
2024-03-27$0.72$0.722,500
2024-03-26$0.70$0.701,500
2024-03-25$0.66$0.663,900
2024-03-22$0.70$0.702,200
2024-03-21$0.75$0.754,000
2024-03-20$0.76$0.762,800
2024-03-19$0.70$0.702,000
2024-03-18$0.72$0.727,400
2024-03-15$0.70$0.703,900
2024-03-14$0.70$0.704,400
2024-03-13$0.70$0.7013,800
2024-03-12$0.65$0.654,300
2024-03-11$0.65$0.654,600
2024-03-08$0.70$0.7014,500
2024-03-07$0.72$0.720
2024-03-06$0.72$0.7216,800
2024-03-05$0.70$0.702,000
2024-03-04$0.67$0.670
2024-03-01$0.67$0.67200
2024-02-29$0.65$0.651,400
2024-02-28$0.72$0.7223,500
2024-02-27$0.72$0.720
2024-02-26$0.72$0.726,500
2024-02-23$0.65$0.6531,700
2024-02-22$0.76$0.7610,300
2024-02-21$0.68$0.686,600
2024-02-20$0.64$0.643,500
2024-02-16$0.64$0.6465,700
2024-02-15$0.69$0.6911,300
2024-02-14$0.70$0.7011,600
2024-02-13$0.63$0.630
2024-02-12$0.63$0.630
2024-02-09$0.63$0.6334,100
2024-02-08$0.70$0.7016,100
2024-02-07$0.79$0.796,800
2024-02-06$0.70$0.7011,800
2024-02-05$0.73$0.730
2024-02-02$0.73$0.730
2024-02-01$0.73$0.73700
2024-01-31$0.73$0.735,800
2024-01-30$0.73$0.73800
2024-01-29$0.73$0.739,800
2024-01-26$0.80$0.80100
2024-01-25$0.80$0.80800
2024-01-24$0.79$0.7915,000
2024-01-23$0.72$0.72141,100
2024-01-22$0.77$0.7710,400
2024-01-19$0.77$0.7710,000
2024-01-18$0.78$0.7818,300
2024-01-17$0.80$0.809,400
2024-01-16$0.80$0.80401,600
2024-01-12$0.75$0.750
2024-01-11$0.75$0.75100
2024-01-10$0.75$0.750
2024-01-09$0.75$0.756,400
2024-01-08$0.83$0.83300
2024-01-05$0.76$0.764,600
2024-01-04$0.78$0.780
2024-01-03$0.78$0.780
2024-01-02$0.78$0.785,300