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NYSE · USD

TGEN

TECOGEN INC.

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Tapewire entity
6846
SEC CIK
0001537435
Parsed reports
204

Last 12 months

Inside the activity.

8 purchase rows · 0 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202500
Jan 202600
Feb 202600
Mar 202660
Apr 202620
May 202600
Jun 202600
Jul 202600
Aug 202600
Sep 202600
Oct 202600

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
August 30, 2023 Filed Sep 1, 2023 21:05 UTC
Rangesh AbinandDirector · Chief Executive Officer · Chief Financial Officer
PurchaseCommon Stock 800 $1.02 $816.00
Disclosure

SEC source: 0001537435-23-000104 · wf-form4_169360232329864.xml · nonDerivative · entry 3

Rangesh Abinand · CIK 0001917503 · Director · Chief Executive Officer · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,301

Read SEC document
August 23, 2023 Filed Sep 1, 2023 21:05 UTC
Rangesh AbinandDirector · Chief Executive Officer · Chief Financial Officer
PurchaseCommon Stock 200 $1.02 $204.00
Disclosure

SEC source: 0001537435-23-000104 · wf-form4_169360232329864.xml · nonDerivative · entry 2

Rangesh Abinand · CIK 0001917503 · Director · Chief Executive Officer · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,501

Read SEC document
August 22, 2023 Filed Aug 23, 2023 17:13 UTC PurchaseCommon Stock 5,000 $1.12 $5,600.00
Disclosure

SEC source: 0001537435-23-000102 · wf-form4_169282521935759.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 468,805

Read SEC document
August 17, 2023 Filed Aug 17, 2023 17:45 UTC PurchaseCommon Stock 4,674 $1.04 $4,856.75
Disclosure

SEC source: 0001537435-23-000100 · wf-form4_169230872835803.xml · nonDerivative · entry 2

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 463,805

Read SEC document
August 15, 2023 Filed Aug 17, 2023 17:45 UTC PurchaseCommon Stock 5,000 $1.00 $5,000.00
Disclosure

SEC source: 0001537435-23-000100 · wf-form4_169230872835803.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 459,131

Read SEC document
August 15, 2023 Filed Sep 1, 2023 21:05 UTC
Rangesh AbinandDirector · Chief Executive Officer · Chief Financial Officer
PurchaseCommon Stock 1 $0.95 $0.95
Disclosure

SEC source: 0001537435-23-000104 · wf-form4_169360232329864.xml · nonDerivative · entry 1

Rangesh Abinand · CIK 0001917503 · Director · Chief Executive Officer · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,301

Read SEC document
August 14, 2023 Filed Aug 17, 2023 15:32 UTC
Lewis EarlDirector
PurchaseCommon Stock 1,500 $1.00 $1,500.00
Disclosure

SEC source: 0001537435-23-000098 · wf-form4_169228632953786.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 494,683

Read SEC document
June 26, 2023 Filed Jun 27, 2023 16:03 UTC PurchaseCommon Stock 1,000 $0.96 $960.00
Disclosure

SEC source: 0001537435-23-000085 · wf-form4_168789618080330.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 454,131

Read SEC document
June 20, 2023 Filed Jun 20, 2023 20:15 UTC
Rangesh AbinandDirector · Chief Executive Officer · Chief Financial Officer
PurchaseCommon Stock 1,500 $1.04 $1,560.00
Disclosure

SEC source: 0001537435-23-000081 · wf-form4_168729213804596.xml · nonDerivative · entry 1

Rangesh Abinand · CIK 0001917503 · Director · Chief Executive Officer · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,300

Read SEC document
June 20, 2023 Filed Jun 21, 2023 15:07 UTC PurchaseCommon Stock 3,000 $1.00 $3,000.00
Disclosure

SEC source: 0001537435-23-000083 · wf-form4_168737446128146.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 453,131

Read SEC document
June 15, 2023 Filed Jun 15, 2023 15:50 UTC PurchaseCommon Stock 5,000 $1.11 $5,550.00
Disclosure

SEC source: 0001537435-23-000079 · wf-form4_168685862705435.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 450,131

Read SEC document
June 13, 2023 Filed Jun 15, 2023 15:45 UTC
HOLUBOW FREDDirector
GrantStock Option (Right to Buy) · Derivative 25,000 $1.10 Strike: $1.10 $27,500.00
Disclosure

SEC source: 0001537435-23-000075 · wf-form4_168685829623815.xml · derivative · entry 1

HOLUBOW FRED · CIK 0000905478 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,000

Underlying: Common Stock · 25,000 shares

Expires 2033-06-13

F1 · derivative.exercise_date: Vests 25% per year

Read SEC document
June 13, 2023 Filed Jun 15, 2023 19:48 UTC GrantStock Option (Right to Buy) · Derivative 25,000 $1.10 Strike: $1.10 $27,500.00
Disclosure

SEC source: 0001537435-23-000077 · wf-form4_168685849012332.xml · derivative · entry 1

ALBERTINE JOHN M · CIK 0001015997 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,000

Underlying: Common Stock · 25,000 shares

Expires 2033-06-13

F1 · derivative.exercise_date: Vests 25% per year

Read SEC document
June 13, 2023 Filed Jun 15, 2023 19:42 UTC
Lewis EarlDirector
GrantStock Option (Right to Buy) · Derivative 25,000 $1.10 Strike: $1.10 $27,500.00
Disclosure

SEC source: 0001537435-23-000073 · wf-form4_168685814839885.xml · derivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,000

Underlying: Common Stock · 25,000 shares

Expires 2033-06-13

F1 · derivative.exercise_date: Vests 25% per year

Read SEC document
June 13, 2023 Filed Jun 15, 2023 19:39 UTC GrantStock Option (Right to Buy) · Derivative 25,000 $1.10 Strike: $1.10 $27,500.00
Disclosure

SEC source: 0001537435-23-000071 · wf-form4_168685798301051.xml · derivative · entry 1

GHONIEM AHMED · CIK 0001538368 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 187,723

Underlying: Common Stock · 25,000 shares

Expires 2033-06-13

F1 · derivative.exercise_date: Vests 25% per year

Read SEC document
June 13, 2023 Filed Jun 15, 2023 19:37 UTC GrantStock Option (Right to Buy) · Derivative 25,000 $1.10 Strike: $1.10 $27,500.00
Disclosure

SEC source: 0001537435-23-000069 · wf-form4_168685781247586.xml · derivative · entry 1

GALITEVA ANGELINA · CIK 0001587245 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,000

Underlying: Common Stock · 25,000 shares

Expires 2033-06-13

F1 · derivative.exercise_date: Vests 25% per year

Read SEC document
June 12, 2023 Filed Jun 12, 2023 16:14 UTC PurchaseCommon Stock 5,000 $1.12 $5,600.00
Disclosure

SEC source: 0001537435-23-000066 · wf-form4_168660086775532.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 445,131

Read SEC document
June 08, 2023 Filed Jun 9, 2023 09:24 UTC PurchaseCommon Stock 500 $1.09 $546.25
Disclosure

SEC source: 0001537435-23-000064 · wf-form4_168631706505377.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 440,131

Read SEC document
June 07, 2023 Filed Jun 8, 2023 08:14 UTC PurchaseCommon Stock 3,000 $1.00 $3,000.00
Disclosure

SEC source: 0001537435-23-000059 · wf-form4_168622644007604.xml · nonDerivative · entry 2

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 439,631

Read SEC document
June 07, 2023 Filed Jun 8, 2023 08:14 UTC PurchaseCommon Stock 7,000 $1.00 $6,986.00
Disclosure

SEC source: 0001537435-23-000059 · wf-form4_168622644007604.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 436,631

Read SEC document
June 06, 2023 Filed Jun 6, 2023 16:14 UTC PurchaseCommon Stock 1,000 $1.14 $1,140.00
Disclosure

SEC source: 0001537435-23-000055 · wf-form4_168608246503816.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 422,631

Read SEC document
June 06, 2023 Filed Jun 7, 2023 08:57 UTC PurchaseCommon Stock 7,000 $1.00 $7,000.00
Disclosure

SEC source: 0001537435-23-000057 · wf-form4_168614266110658.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 429,631

Read SEC document
June 02, 2023 Filed Jun 5, 2023 08:41 UTC PurchaseCommon Stock 1,000 $1.09 $1,090.00
Disclosure

SEC source: 0001537435-23-000053 · wf-form4_168596887895432.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 421,631

Read SEC document
May 26, 2023 Filed May 26, 2023 15:38 UTC PurchaseCommon Stock 1,000 $1.17 $1,170.00
Disclosure

SEC source: 0001537435-23-000051 · wf-form4_168512985258049.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 420,631

Read SEC document
May 25, 2023 Filed May 26, 2023 09:17 UTC PurchaseCommon Stock 1,000 $1.17 $1,170.00
Disclosure

SEC source: 0001537435-23-000049 · wf-form4_168510702045630.xml · nonDerivative · entry 2

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 419,631

Read SEC document
May 23, 2023 Filed May 26, 2023 09:17 UTC PurchaseCommon Stock 1,000 $1.17 $1,170.00
Disclosure

SEC source: 0001537435-23-000049 · wf-form4_168510702045630.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 418,631

Read SEC document
May 15, 2023 Filed May 16, 2023 18:11 UTC PurchaseCommon Stock 3,649 $1.00 $3,645.35
Disclosure

SEC source: 0001537435-23-000047 · wf-form4_168427504417659.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 417,631

Read SEC document
May 15, 2023 Filed May 16, 2023 21:59 UTC
Lewis EarlDirector
PurchaseCommon Stock 10,000 $0.96 $9,600.00
Disclosure

SEC source: 0001537435-23-000045 · wf-form4_168427436806895.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 493,183

Read SEC document
March 29, 2023 Filed Mar 30, 2023 17:41 UTC
Lewis EarlDirector
PurchaseCommon Stock 10,000 $1.18 $11,800.00
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 8

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 483,183

Read SEC document
March 29, 2023 Filed Mar 30, 2023 17:41 UTC
Lewis EarlDirector
PurchaseCommon Stock 10,000 $1.17 $11,700.00
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 7

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 473,183

Read SEC document
March 28, 2023 Filed Mar 29, 2023 09:27 UTC PurchaseCommon Stock 17,700 $1.00 $17,700.00
Disclosure

SEC source: 0001537435-23-000029 · wf-form4_168009645313725.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 413,982

Read SEC document
March 28, 2023 Filed Mar 30, 2023 17:41 UTC
Lewis EarlDirector
PurchaseCommon Stock 3,200 $1.02 $3,264.00
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 6

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 463,183

Read SEC document
March 28, 2023 Filed Mar 30, 2023 17:41 UTC
Lewis EarlDirector
PurchaseCommon Stock 700 $1.02 $710.50
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 5

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 459,983

Read SEC document
March 28, 2023 Filed Mar 30, 2023 17:41 UTC
Lewis EarlDirector
PurchaseCommon Stock 2,100 $1.03 $2,163.00
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 4

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 459,283

Read SEC document
March 27, 2023 Filed Mar 27, 2023 17:08 UTC PurchaseCommon Stock 11,419 $1.00 $11,392.74
Disclosure

SEC source: 0001537435-23-000027 · wf-form4_167995128019981.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 396,282

Read SEC document
March 27, 2023 Filed Mar 30, 2023 17:41 UTC
Lewis EarlDirector
PurchaseCommon Stock 806 $0.98 $793.51
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 3

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 457,183

Read SEC document
March 24, 2023 Filed Mar 24, 2023 16:09 UTC PurchaseCommon Stock 50,000 $0.92 $45,995.00
Disclosure

SEC source: 0001537435-23-000023 · wf-form4_167968857509423.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 384,863

Read SEC document
March 24, 2023 Filed Mar 30, 2023 17:41 UTC
Lewis EarlDirector
PurchaseCommon Stock 2,694 $0.93 $2,505.42
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 2

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 456,377

Read SEC document
March 24, 2023 Filed Mar 30, 2023 17:41 UTC
Lewis EarlDirector
PurchaseCommon Stock 5,500 $0.92 $5,060.00
Disclosure

SEC source: 0001537435-23-000031 · wf-form4_168019805664497.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 453,683

Read SEC document
March 22, 2023 Filed Mar 23, 2023 15:50 UTC
Lewis EarlDirector
PurchaseCommon Stock 5,000 $0.87 $4,350.00
Disclosure

SEC source: 0001537435-23-000020 · wf-form4_167958659226917.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 448,183

Read SEC document
March 21, 2023 Filed Mar 21, 2023 16:18 UTC PurchaseCommon Stock 10,000 $0.88 $8,800.00
Disclosure

SEC source: 0001537435-23-000015 · wf-form4_167942989884931.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 334,863

Read SEC document
March 20, 2023 Filed Mar 21, 2023 11:08 UTC PurchaseCommon Stock 10,000 $0.84 $8,400.00
Disclosure

SEC source: 0001537435-23-000011 · wf-form4_167941129064309.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 324,863

Read SEC document
March 20, 2023 Filed Mar 21, 2023 20:10 UTC
Lewis EarlDirector
PurchaseCommon Stock 5,000 $0.87 $4,350.00
Disclosure

SEC source: 0001537435-23-000013 · wf-form4_167942943376724.xml · nonDerivative · entry 2

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 443,183

Read SEC document
March 20, 2023 Filed Mar 21, 2023 20:10 UTC
Lewis EarlDirector
PurchaseCommon Stock 10,000 $0.90 $9,000.00
Disclosure

SEC source: 0001537435-23-000013 · wf-form4_167942943376724.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 438,183

Read SEC document
March 20, 2023 Filed Mar 27, 2023 15:33 UTC
Rangesh AbinandDirector · Chief Executive Officer · Chief Financial Officer
PurchaseCommon Stock 1,000 $0.90 $899.50
Disclosure

SEC source: 0001537435-23-000025 · wf-form4_167993119827146.xml · nonDerivative · entry 2

Rangesh Abinand · CIK 0001917503 · Director · Chief Executive Officer · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,800

Read SEC document
March 20, 2023 Filed Mar 27, 2023 15:33 UTC
Rangesh AbinandDirector · Chief Executive Officer · Chief Financial Officer
PurchaseCommon Stock 800 $0.85 $676.16
Disclosure

SEC source: 0001537435-23-000025 · wf-form4_167993119827146.xml · nonDerivative · entry 1

Rangesh Abinand · CIK 0001917503 · Director · Chief Executive Officer · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,800

Read SEC document
November 29, 2022 Filed Apr 16, 2024 21:28 UTC
Lewis EarlDirector
PurchaseCommon Stock 5,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 5

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 577,652

F3 · price: ten purchases at $1.43 to $1.57 per share

Read SEC document
November 23, 2022 Filed Apr 16, 2024 21:28 UTC
Lewis EarlDirector
PurchaseCommon Stock 630 $1.34 $844.20
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 4

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 572,652

Read SEC document
November 22, 2022 Filed Apr 16, 2024 21:28 UTC
Lewis EarlDirector
PurchaseCommon Stock 4,987 $1.36 $6,782.32
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 3

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 572,022

Read SEC document
November 22, 2022 Filed Apr 16, 2024 21:28 UTC
Lewis EarlDirector
PurchaseCommon Stock 1,200 Not disclosed Not disclosed
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 2

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 567,035

F2 · price: Six purchases at $1.24 to $1.29 per share

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.