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TGENTECOGEN INC.

Market cap
$63.39M
as of 2026-10-23
Latest close
$2.10
as of 2026-10-23
Sector
Industrials
as of 2026-10-24
Industry
Electrical Equipment & Parts
as of 2026-10-24

Cluster

No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).

Form 4 historysince 2023-10-02

Dashed line = amended filing (Form 4/A)

InsiderTradedFiledTypeSharesPriceValueOwned after10b5-1 planFiling
Rangesh AbinandChief Executive OfficerJun 26Sep 84/AA174,081$0.00$0241,274NoForm 4/A
Deschenes Roger P.Chief Financial OfficerJun 26Sep 84/AA29,013$0.00$081,975NoForm 4/A
Lafaille StephenVP of Business DevelopmentJun 26Sep 84/AA29,013$0.00$041,389NoForm 4/A
Panora RobertCOO and PresidentJun 26Sep 84/AA9,671$0.00$072,194NoForm 4/A
Whiting John Kimball IVGeneral Counsel & SecretaryJun 26Sep 84/AA19,342$0.00$041,954NoForm 4/A
Galiteva AngelinaJun 26Jun 30A · derivative25,000$5.17$129,25025,000NoForm 4
Ghoniem AhmedJun 26Jun 30A · derivative25,000$5.17$129,25025,000NoForm 4
Lewis EarlJun 26Jun 30A · derivative25,000$5.17$129,25025,000NoForm 4
Albertine John MJun 26Jun 30A · derivative25,000$5.17$129,25025,000NoForm 4
Hirsch Susan BJun 26Jun 30A · derivative25,000$5.17$129,25025,000NoForm 4
Ghoniem AhmedApr 24Apr 27P12,723$0.79Purchase +$10,05112,723NoForm 4
Ghoniem AhmedApr 24Apr 27M · derivative12,723$0.79$10,051not reportedNoForm 4
Hirsch Susan BApr 13Apr 14P5,000$3.73Purchase +$18,650265,416NoForm 4
Lewis EarlMar 27Mar 27P5,000$2.52Purchase +$12,6001,011,006NoForm 4
Hirsch Susan BMar 27Mar 27P10,000$2.54Purchase +$25,400260,416NoForm 4
Lewis EarlMar 26Mar 27P5,000$2.88Purchase +$14,4001,006,006NoForm 4
Whiting John Kimball IVGeneral Counsel & SecretaryMar 23Mar 23P10,000$2.38Purchase +$23,80022,612NoForm 4
Hatsopoulos JohnMar 20Mar 23M50,000$0.88$44,0001,038,951NoForm 4
Hatsopoulos JohnMar 20Mar 23M · derivative50,000$0.88$44,000not reportedNoForm 4
Rangesh AbinandChief Executive OfficerMar 20Mar 23P3,000$2.30Purchase +$6,90067,193NoForm 4
Deschenes Roger P.CAOMar 20Mar 23P10,000$2.23Purchase +$22,30052,962NoForm 4
Galiteva AngelinaJul 24, 2025Jul 28, 2025A · derivative25,000$8.35$208,750225,000NoForm 4
Lewis Earl RJul 24, 2025Jul 28, 2025A · derivative25,000$8.35$208,75091,250NoForm 4
Ghoniem AhmedJul 24, 2025Jul 28, 2025A · derivative25,000$8.35$208,750237,723NoForm 4
Hirsch Susan BJul 24, 2025Jul 28, 2025A · derivative25,000$8.35$208,750150,000NoForm 4
Rangesh AbinandChief Executive OfficerJul 24, 2025Jul 28, 2025A53,892$0.00$064,193NoForm 4
Rangesh AbinandChief Executive OfficerJul 24, 2025Jul 28, 2025A · derivative24,075$8.35$201,026294,075NoForm 4
Rangesh AbinandChief Executive OfficerJul 24, 2025Jul 28, 2025A · derivative12,048$8.35$100,601306,123NoForm 4
Deschenes Roger P.CAOJul 24, 2025Jul 28, 2025A17,964$0.00$042,962NoForm 4
Deschenes Roger P.CAOJul 24, 2025Jul 28, 2025A · derivative12,063$8.35$100,726152,063NoForm 4
Whiting John Kimball IVGeneral Counsel & SecretaryJul 24, 2025Jul 28, 2025A11,976$0.00$012,612NoForm 4
Whiting John Kimball IVGeneral Counsel & SecretaryJul 24, 2025Jul 28, 2025A · derivative24,075$8.35$201,026424,075NoForm 4
Lafaille StephenVP of Business DevelopmentJul 24, 2025Jul 28, 2025A11,976$0.00$012,376NoForm 4
Lafaille StephenVP of Business DevelopmentJul 24, 2025Jul 28, 2025A · derivative24,075$8.35$201,02672,937NoForm 4
Albertine John MJul 24, 2025Jul 28, 2025A · derivative25,000$8.35$208,750175,000NoForm 4
Panora Robert ACOO and PresidentJun 24, 2025Jul 14, 20254/AS900$6.86Sale −$6,17462,523NoForm 4/A
Panora Robert ACOO and PresidentJun 23, 2025Jul 14, 20254/AS31,800$6.36Sale −$202,24863,423NoForm 4/A
Panora Robert ACOO and PresidentJun 18, 2025Jul 14, 20254/AS13,000$5.03Sale −$65,39095,223NoForm 4/A
Panora Robert ACOO and PresidentJun 16, 2025Jul 14, 20254/AM12,723$0.79$10,05125,723NoForm 4/A
Panora Robert ACOO and PresidentJun 16, 2025Jul 14, 20254/AM30,000$0.71$21,30055,723NoForm 4/A
Panora Robert ACOO and PresidentJun 16, 2025Jul 14, 20254/AM52,500$1.10$57,750108,223NoForm 4/A
Panora Robert ACOO and PresidentJun 16, 2025Jul 14, 20254/AM · derivative12,723$0.79$10,051not reportedNoForm 4/A
Panora Robert ACOO and PresidentJun 16, 2025Jul 14, 20254/AM · derivative30,000$0.71$21,300100,000NoForm 4/A
Panora Robert ACOO and PresidentJun 16, 2025Jul 14, 20254/AM · derivative52,500$1.10$57,750not reportedNoForm 4/A
Panora Robert ACOO and PresidentJun 4, 2025Jul 14, 20254/AS31,000$5.00Sale −$155,00013,000NoForm 4/A
Panora Robert ACOO and PresidentJun 3, 2025Jul 14, 20254/AS26,000$4.69Sale −$121,94044,000NoForm 4/A
Panora Robert ACOO and PresidentMay 27, 2025Jul 14, 20254/AM70,000$0.71$49,70070,000NoForm 4/A
Panora Robert ACOO and PresidentMay 27, 2025Jul 14, 20254/AM · derivative70,000$0.71$49,700130,000NoForm 4/A
Lafaille StephenVP of Business DevelopmentJun 23, 2025Jun 24, 2025X10,000$1.10$11,00010,400NoForm 4
Lafaille StephenVP of Business DevelopmentJun 23, 2025Jun 24, 2025S10,000$7.25Sale −$72,500400NoForm 4
Lafaille StephenVP of Business DevelopmentJun 23, 2025Jun 24, 2025X · derivative10,000$1.10$11,00017,500NoForm 4
Lafaille StephenVP of Business DevelopmentJun 6, 2025Jun 24, 2025X25,000$1.10$27,50025,400NoForm 4
Lafaille StephenVP of Business DevelopmentJun 6, 2025Jun 24, 2025S25,000$5.98Sale −$149,500400NoForm 4
Lafaille StephenVP of Business DevelopmentJun 6, 2025Jun 24, 2025X · derivative25,000$1.10$27,50027,500NoForm 4
Lafaille StephenVP of Business DevelopmentJun 4, 2025Jun 24, 2025X15,000$0.71$10,65015,400NoForm 4
Lafaille StephenVP of Business DevelopmentJun 4, 2025Jun 24, 2025S15,000$5.00Sale −$75,000400NoForm 4
Lafaille StephenVP of Business DevelopmentJun 4, 2025Jun 24, 2025X · derivative15,000$0.71$10,65025,000NoForm 4
Lafaille StephenVP of Business DevelopmentJun 3, 2025Jun 24, 2025X10,000$0.71$7,10010,400NoForm 4
Lafaille StephenVP of Business DevelopmentJun 3, 2025Jun 24, 2025S10,000$4.88Sale −$48,800400NoForm 4
Lafaille StephenVP of Business DevelopmentJun 3, 2025Jun 24, 2025X · derivative10,000$0.71$7,10040,000NoForm 4
Lafaille StephenVP of Business DevelopmentMar 3, 2025Jun 24, 2025P400$2.50Purchase +$1,000400NoForm 4
Panora Robert ACOO and PresidentJun 16, 2025Jun 20, 2025X12,723$0.79$10,05182,723NoForm 4
Panora Robert ACOO and PresidentJun 16, 2025Jun 20, 2025X30,000$0.71$21,300112,723NoForm 4
Panora Robert ACOO and PresidentJun 16, 2025Jun 20, 2025X52,500$1.10$57,750165,223NoForm 4
Lewis Earl RMay 6, 2025May 7, 2025X15,000$1.75$26,250982,256NoForm 4
Lewis Earl RMay 6, 2025May 7, 2025X12,500$1.20$15,000994,756NoForm 4
Lewis Earl RMay 6, 2025May 7, 2025X6,250$1.10$6,8751,001,006NoForm 4
Lewis Earl RMay 1, 2025May 5, 2025J240,256$2.14$514,148967,256NoForm 4
Lewis Earl RNov 22, 2024Mar 25, 20254/AX100,000$0.71$71,000727,000NoForm 4/A
Lewis Earl RNov 22, 2024Mar 25, 20254/AM · derivative100,000$0.71$71,000100,000NoForm 4/A
Lewis Earl RJul 15, 2024Mar 25, 20254/AP10,000$0.68Purchase +$6,800625,000NoForm 4/A
Lewis Earl ROct 9, 2023Mar 25, 20254/AP2,000$0.80Purchase +$1,600627,000NoForm 4/A
Hatsopoulos JohnSep 27, 2024Sep 27, 2024P10,000$0.84Purchase +$8,400988,951NoForm 4
Hatsopoulos JohnSep 25, 2024Sep 25, 2024P10,000$0.86Purchase +$8,600978,951NoForm 4
Hatsopoulos JohnAug 19, 2024Aug 20, 2024P10,000$0.90Purchase +$9,000968,951NoForm 4
Lewis Earl RJul 15, 2024Jul 15, 2024P10,000$0.68Purchase +$6,800625,000NoForm 4
Hatsopoulos JohnJul 10, 2024Jul 12, 2024P22,466$0.65Purchase +$14,603958,951NoForm 4
Lewis Earl RJun 6, 2024Jun 18, 2024A · derivative25,000$0.77$19,250200,000NoForm 4
Albertine John MJun 6, 2024Jun 18, 2024A · derivative25,000$0.77$19,250150,000NoForm 4
Hirsch Susan BJun 6, 2024Jun 18, 2024A · derivative25,000$0.77$19,250125,000NoForm 4
Galiteva AngelinaJun 6, 2024Jun 18, 2024A · derivative25,000$0.77$19,250200,000NoForm 4
Ghoniem AhmedJun 6, 2024Jun 18, 2024A · derivative25,000$0.77$19,250212,723NoForm 4
Hatsopoulos JohnMay 29, 2024May 29, 2024P10,000$0.80Purchase +$8,000935,220NoForm 4
Hatsopoulos JohnMay 28, 2024May 29, 2024P1,265$0.80Purchase +$1,012936,485NoForm 4
Hatsopoulos JohnMay 24, 2024May 28, 2024P8,735$0.80Purchase +$6,988925,220NoForm 4
Hatsopoulos JohnMay 22, 2024May 28, 2024P3,200$0.79Purchase +$2,528916,485NoForm 4
Hatsopoulos JohnMay 21, 2024May 22, 2024P13,800$0.79Purchase +$10,902913,285NoForm 4
Hatsopoulos JohnMay 16, 2024May 17, 2024P3,000$0.75Purchase +$2,250899,485NoForm 4
Hatsopoulos JohnMay 15, 2024May 16, 2024P10,000$0.74Purchase +$7,400896,485NoForm 4
Lewis Earl RMay 1, 2024May 3, 2024P5,000$0.75Purchase +$3,750615,000NoForm 4
Hatsopoulos JohnApr 24, 2024Apr 24, 2024P5,000$0.67Purchase +$3,350886,485NoForm 4
Lewis Earl RApr 24, 2024Apr 24, 2024P10,000$0.68Purchase +$6,800610,000NoForm 4
Hatsopoulos JohnApr 23, 2024Apr 23, 2024P5,000$0.69Purchase +$3,450880,485NoForm 4
Hatsopoulos JohnApr 23, 2024Apr 23, 2024P1,000$0.68Purchase +$680881,485NoForm 4
Hatsopoulos JohnApr 16, 2024Apr 16, 2024P1,000$0.68Purchase +$680875,485NoForm 4
Hatsopoulos JohnApr 15, 2024Apr 16, 2024P1,000$0.70Purchase +$700874,485NoForm 4
Hatsopoulos JohnApr 12, 2024Apr 12, 2024P1,000$0.70Purchase +$700873,485NoForm 4
Hatsopoulos JohnApr 11, 2024Apr 11, 2024P1,000$0.70Purchase +$700872,485NoForm 4
Hatsopoulos JohnApr 9, 2024Apr 9, 2024P1,000$0.70Purchase +$700871,485NoForm 4
Hatsopoulos JohnApr 8, 2024Apr 8, 2024P1,000$0.70Purchase +$700870,485NoForm 4
Hatsopoulos JohnApr 1, 2024Apr 2, 2024P612$0.70Purchase +$428864,485NoForm 4
Hatsopoulos JohnApr 1, 2024Apr 2, 2024P5,000$0.70Purchase +$3,500869,485NoForm 4
Hatsopoulos JohnMar 28, 2024Apr 2, 2024P2,388$0.70Purchase +$1,672863,873NoForm 4
Hatsopoulos JohnMar 27, 2024Apr 2, 2024P2,000$0.70Purchase +$1,400861,485NoForm 4
Lewis Earl RJan 24, 2024Jan 25, 2024P9,152$0.78Purchase +$7,139560,835NoForm 4
Lewis Earl RJan 23, 2024Jan 23, 2024P10,000$0.68Purchase +$6,800551,683NoForm 4
Hatsopoulos JohnJan 22, 2024Jan 23, 2024P10,000$0.77Purchase +$7,700859,485NoForm 4
Hatsopoulos JohnJan 18, 2024Jan 19, 2024P10,000$0.73Purchase +$7,300849,485NoForm 4
Hatsopoulos JohnJan 16, 2024Jan 16, 2024P100,000$0.73Purchase +$73,000839,485NoForm 4
Hatsopoulos JohnDec 27, 2023Dec 28, 2023P25,000$0.80Purchase +$20,000739,485NoForm 4
Hatsopoulos JohnDec 22, 2023Dec 26, 2023P25,000$0.80Purchase +$20,000714,485NoForm 4
Hatsopoulos JohnDec 14, 2023Dec 15, 2023P1,000$0.83Purchase +$830640,485NoForm 4
Hatsopoulos JohnDec 14, 2023Dec 15, 2023P5,000$0.85Purchase +$4,250645,485NoForm 4
Hatsopoulos JohnDec 14, 2023Dec 15, 2023P44,000$0.90Purchase +$39,600689,485NoForm 4
Hatsopoulos JohnNov 20, 2023Nov 21, 2023P4,000$0.85Purchase +$3,400639,485NoForm 4
Hatsopoulos JohnNov 17, 2023Nov 17, 2023P46,000$0.85Purchase +$39,100635,485NoForm 4
Hatsopoulos JohnNov 14, 2023Nov 17, 2023P100$0.85Purchase +$85589,485NoForm 4
Hirsch Susan BOct 19, 2023Oct 20, 2023P5,000$0.92Purchase +$4,600250,416NoForm 4
Lewis Earl ROct 18, 2023Oct 18, 2023P25,000$0.91Purchase +$22,750541,683NoForm 4
Hatsopoulos JohnOct 17, 2023Oct 17, 2023P50,000$0.80Purchase +$40,000589,385NoForm 4
Hatsopoulos JohnOct 12, 2023Oct 13, 2023P50,000$0.80Purchase +$40,000539,385NoForm 4
Lewis Earl ROct 9, 2023Oct 11, 2023P2,000$0.80Purchase +$1,600516,683NoForm 4
Hatsopoulos JohnSep 29, 2023Oct 2, 2023P2,000$0.98Purchase +$1,960489,385NoForm 4