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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
April 24, 2024 Filed Apr 24, 2024 19:37 UTC
Lewis EarlDirector
PurchaseCommon Stock 10,000 $0.68 $6,800.00
Disclosure

SEC source: 0001537435-24-000050 · wk-form4_1713987434.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 610,000

Read SEC document
April 23, 2024 Filed Apr 23, 2024 14:14 UTC PurchaseCommon Stock 1,000 $0.68 $677.50
Disclosure

SEC source: 0001537435-24-000046 · wk-form4_1713896054.xml · nonDerivative · entry 2

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 881,485

Read SEC document
April 23, 2024 Filed Apr 23, 2024 14:14 UTC PurchaseCommon Stock 5,000 $0.69 $3,425.00
Disclosure

SEC source: 0001537435-24-000046 · wk-form4_1713896054.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 880,485

Read SEC document
April 16, 2024 Filed Apr 16, 2024 17:34 UTC PurchaseCommon Stock 1,000 $0.68 $679.00
Disclosure

SEC source: 0001537435-24-000042 · wk-form4_1713303258.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 875,485

Read SEC document
April 15, 2024 Filed Apr 16, 2024 10:11 UTC PurchaseCommon Stock 1,000 $0.70 $700.00
Disclosure

SEC source: 0001537435-24-000038 · wk-form4_1713276705.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 874,485

Read SEC document
April 12, 2024 Filed Apr 12, 2024 17:11 UTC PurchaseCommon Stock 1,000 $0.70 $699.70
Disclosure

SEC source: 0001537435-24-000036 · wk-form4_1712956279.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 873,485

Read SEC document
April 11, 2024 Filed Apr 11, 2024 17:25 UTC PurchaseCommon Stock 1,000 $0.70 $700.00
Disclosure

SEC source: 0001537435-24-000030 · wk-form4_1712870748.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 872,485

Read SEC document
April 09, 2024 Filed Apr 9, 2024 15:35 UTC PurchaseCommon Stock 1,000 $0.70 $700.00
Disclosure

SEC source: 0001537435-24-000028 · wk-form4_1712691298.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 871,485

Read SEC document
April 08, 2024 Filed Apr 8, 2024 16:08 UTC PurchaseCommon Stock 1,000 $0.70 $700.00
Disclosure

SEC source: 0001537435-24-000026 · wk-form4_1712606894.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 870,485

Read SEC document
April 01, 2024 Filed Apr 2, 2024 11:37 UTC PurchaseCommon Stock 5,000 $0.70 $3,500.00
Disclosure

SEC source: 0001537435-24-000024 · wk-form4_1712072233.xml · nonDerivative · entry 4

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 869,485

Read SEC document
April 01, 2024 Filed Apr 2, 2024 11:37 UTC PurchaseCommon Stock 612 $0.70 $428.40
Disclosure

SEC source: 0001537435-24-000024 · wk-form4_1712072233.xml · nonDerivative · entry 3

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 864,485

Read SEC document
March 28, 2024 Filed Apr 2, 2024 11:37 UTC PurchaseCommon Stock 2,388 $0.70 $1,671.60
Disclosure

SEC source: 0001537435-24-000024 · wk-form4_1712072233.xml · nonDerivative · entry 2

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 863,873

Read SEC document
March 27, 2024 Filed Apr 2, 2024 11:37 UTC PurchaseCommon Stock 2,000 $0.70 $1,400.00
Disclosure

SEC source: 0001537435-24-000024 · wk-form4_1712072233.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 861,485

Read SEC document
January 24, 2024 Filed Jan 25, 2024 14:29 UTC
Lewis EarlDirector
PurchaseCommon Stock 9,152 $0.78 $7,138.56
Disclosure

SEC source: 0001537435-24-000012 · wk-form4_1706192955.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 560,835

Read SEC document
January 23, 2024 Filed Jan 23, 2024 22:54 UTC
Lewis EarlDirector
PurchaseCommon Stock 10,000 $0.68 $6,800.00
Disclosure

SEC source: 0001537435-24-000010 · wk-form4_1706050436.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 551,683

Read SEC document
January 22, 2024 Filed Jan 23, 2024 17:45 UTC PurchaseCommon Stock 10,000 $0.77 $7,700.00
Disclosure

SEC source: 0001537435-24-000008 · wk-form4_1706049917.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 859,485

Read SEC document
January 18, 2024 Filed Jan 19, 2024 10:42 UTC PurchaseCommon Stock 10,000 $0.73 $7,346.00
Disclosure

SEC source: 0001537435-24-000006 · wk-form4_1705678963.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 849,485

Read SEC document
January 16, 2024 Filed Jan 16, 2024 16:42 UTC PurchaseCommon Stock 100,000 $0.73 $73,460.00
Disclosure

SEC source: 0001537435-24-000004 · wk-form4_1705441319.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 839,485

Read SEC document
December 27, 2023 Filed Dec 28, 2023 10:59 UTC PurchaseCommon Stock 25,000 $0.80 $20,000.00
Disclosure

SEC source: 0001537435-23-000163 · wk-form4_1703779154.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 739,485

Read SEC document
December 22, 2023 Filed Dec 26, 2023 11:34 UTC PurchaseCommon Stock 25,000 $0.80 $20,000.00
Disclosure

SEC source: 0001537435-23-000161 · wk-form4_1703608488.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 714,485

Read SEC document
December 14, 2023 Filed Dec 15, 2023 16:19 UTC PurchaseCommon Stock 44,000 $0.90 $39,600.00
Disclosure

SEC source: 0001537435-23-000159 · wk-form4_1702675153.xml · nonDerivative · entry 3

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 689,485

Read SEC document
December 14, 2023 Filed Dec 15, 2023 16:19 UTC PurchaseCommon Stock 5,000 $0.85 $4,250.00
Disclosure

SEC source: 0001537435-23-000159 · wk-form4_1702675153.xml · nonDerivative · entry 2

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 645,485

Read SEC document
December 14, 2023 Filed Dec 15, 2023 16:19 UTC PurchaseCommon Stock 1,000 $0.83 $825.00
Disclosure

SEC source: 0001537435-23-000159 · wk-form4_1702675153.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 640,485

Read SEC document
November 20, 2023 Filed Nov 21, 2023 10:28 UTC PurchaseCommon Stock 4,000 $0.85 $3,380.00
Disclosure

SEC source: 0001537435-23-000154 · wk-form4_1700580497.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 639,485

Read SEC document
November 17, 2023 Filed Nov 17, 2023 16:33 UTC PurchaseCommon Stock 46,000 $0.85 $38,870.00
Disclosure

SEC source: 0001537435-23-000152 · wk-form4_1700256796.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 635,485

Read SEC document
November 14, 2023 Filed Nov 17, 2023 11:50 UTC PurchaseCommon Stock 100 $0.85 $84.50
Disclosure

SEC source: 0001537435-23-000150 · wk-form4_1700239806.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 589,485

Read SEC document
October 19, 2023 Filed Oct 20, 2023 22:14 UTC PurchaseCommon Stock 5,000 $0.92 $4,575.00
Disclosure

SEC source: 0001537435-23-000141 · wk-form4_1697840034.xml · nonDerivative · entry 1

Hirsch Susan B · CIK 0001827663 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 250,416

Read SEC document
October 18, 2023 Filed Oct 18, 2023 20:28 UTC
Lewis EarlDirector
PurchaseCommon Stock 25,000 $0.91 $22,750.00
Disclosure

SEC source: 0001537435-23-000139 · wk-form4_1697660905.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 541,683

Read SEC document
October 17, 2023 Filed Oct 17, 2023 16:44 UTC PurchaseCommon Stock 50,000 $0.80 $40,000.00
Disclosure

SEC source: 0001537435-23-000137 · wk-form4_1697575483.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 589,385

Read SEC document
October 12, 2023 Filed Oct 13, 2023 10:08 UTC PurchaseCommon Stock 50,000 $0.80 $40,000.00
Disclosure

SEC source: 0001537435-23-000135 · wk-form4_1697206105.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 539,385

Read SEC document
October 09, 2023 Filed Oct 11, 2023 22:58 UTC
Lewis EarlDirector
PurchaseCommon Stock 2,000 $0.80 $1,600.00
Disclosure

SEC source: 0001537435-23-000133 · wk-form4_1697065084.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 516,683

Read SEC document
October 09, 2023 Filed Apr 16, 2024 21:28 UTC
Lewis EarlDirector
OtherCommon Stock 2,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 11

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 600,000

F4 · kind: purchase of 2,000 shares reported did not occur

F4 · price: purchase of 2,000 shares reported did not occur

Read SEC document
October 09, 2023 Filed Dec 6, 2024 14:12 UTC
Lewis EarlDirector
PurchaseCommon Stock 2,000 $0.80 $1,600.00
Disclosure

SEC source: 0001537435-24-000124 · wk-form4_1733494335.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 637,000

Read SEC document
October 09, 2023 Filed Mar 25, 2025 21:11 UTC Amendment
Lewis EarlDirector
PurchaseCommon Stock 2,000 $0.80 $1,600.00
Disclosure

SEC source: 0001628280-25-014778 · wk-form4a_1742937063.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 627,000

F1 · balance_after: The share balance on the Form 4 filed 12/6/2024 following the reported purchase of 2,000 shares should have been 627,000 shares rather than 637,000 shares because the Form 4 filed 7/17/2024 was duplicative, resulting in a 10,000 share overstatement of the share balance.

Read SEC document
October 06, 2023 Filed Apr 16, 2024 21:28 UTC
Lewis EarlDirector
PurchaseCommon Stock 1,000 $0.80 $800.00
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 10

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 602,000

Read SEC document
October 06, 2023 Filed Apr 16, 2024 21:28 UTC
Lewis EarlDirector
PurchaseCommon Stock 132 $0.79 $104.28
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 9

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 601,000

Read SEC document
October 02, 2023 Filed Apr 16, 2024 21:28 UTC
Lewis EarlDirector
PurchaseCommon Stock 5,000 $0.87 $4,350.00
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 8

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 600,868

Read SEC document
September 29, 2023 Filed Oct 2, 2023 09:01 UTC PurchaseCommon Stock 2,000 $0.98 $1,960.00
Disclosure

SEC source: 0001537435-23-000126 · wf-form4_169625166483069.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 489,385

Read SEC document
September 27, 2023 Filed Sep 28, 2023 11:19 UTC PurchaseCommon Stock 1,380 $0.91 $1,255.80
Disclosure

SEC source: 0001537435-23-000124 · wf-form4_169591438593695.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 487,385

Read SEC document
September 26, 2023 Filed Sep 27, 2023 12:36 UTC PurchaseCommon Stock 2,000 $0.92 $1,840.00
Disclosure

SEC source: 0001537435-23-000118 · wf-form4_169583257360245.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 486,005

Read SEC document
September 26, 2023 Filed Apr 16, 2024 21:28 UTC
Lewis EarlDirector
PurchaseCommon Stock 1,000 $0.90 $900.00
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 7

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 595,868

Read SEC document
September 20, 2023 Filed Sep 27, 2023 17:16 UTC
Whiting John Kimball IVGeneral Counsel & Secretary
GrantStock Option (Right to Buy) · Derivative 37,500 $0.88 Strike: $0.88 $33,000.00
Disclosure

SEC source: 0001537435-23-000122 · wf-form4_169583496824836.xml · derivative · entry 1

Whiting John Kimball IV · CIK 0001808199 · General Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 400,000

Underlying: Common Stock · 37,500 shares

Expires 2033-09-20

F1 · derivative.exercise_date: Vests 50% per year

Read SEC document
September 20, 2023 Filed Sep 27, 2023 12:36 UTC GrantStock Option (Right to Buy) · Derivative 50,000 $0.88 Strike: $0.88 $44,000.00
Disclosure

SEC source: 0001537435-23-000118 · wf-form4_169583257360245.xml · derivative · entry 2

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,723

Underlying: Common Stock · 50,000 shares

Expires 2033-09-20

Read SEC document
September 20, 2023 Filed Sep 27, 2023 17:07 UTC
Rangesh AbinandDirector · Chief Executive Officer · Chief Financial Officer
GrantStock Option (Right to Buy) · Derivative 140,000 $0.88 Strike: $0.88 $123,200.00
Disclosure

SEC source: 0001537435-23-000120 · wf-form4_169583442291080.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 270,000

Underlying: Common Stock · 140,000 shares

Expires 2033-09-20

F1 · derivative.exercise_date: Vests 50% per year

Read SEC document
September 19, 2023 Filed Sep 19, 2023 17:19 UTC PurchaseCommon Stock 5,000 $0.91 $4,550.00
Disclosure

SEC source: 0001537435-23-000114 · wf-form4_169515833429221.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 484,005

Read SEC document
September 14, 2023 Filed Apr 16, 2024 21:28 UTC
Lewis EarlDirector
PurchaseCommon Stock 17,216 $0.93 $16,010.88
Disclosure

SEC source: 0001537435-24-000040 · wk-form5_1713302901.xml · nonDerivative · entry 6

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 594,868

Read SEC document
September 08, 2023 Filed Sep 11, 2023 12:54 UTC
Lewis EarlDirector
PurchaseCommon Stock 10,000 $0.95 $9,500.00
Disclosure

SEC source: 0001537435-23-000112 · wf-form4_169443687535089.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 514,683

Read SEC document
September 07, 2023 Filed Sep 8, 2023 09:25 UTC PurchaseCommon Stock 200 $1.00 $200.00
Disclosure

SEC source: 0001537435-23-000110 · wf-form4_169417948692922.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 479,005

Read SEC document
September 05, 2023 Filed Sep 6, 2023 10:07 UTC PurchaseCommon Stock 10,000 $0.97 $9,700.00
Disclosure

SEC source: 0001537435-23-000106 · wf-form4_169400921479624.xml · nonDerivative · entry 1

HATSOPOULOS JOHN · CIK 0001274775 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 478,805

Read SEC document
September 05, 2023 Filed Sep 6, 2023 14:13 UTC
Lewis EarlDirector
PurchaseCommon Stock 10,000 $1.00 $10,000.00
Disclosure

SEC source: 0001537435-23-000108 · wf-form4_169400961175518.xml · nonDerivative · entry 1

LEWIS EARL R · CIK 0001230427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 504,683

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.