Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| TECOGEN INC.TGEN · Entity 6846 | Director · Chief Executive Officer | June 26, 2026 | September 08, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
TECOGEN INC.
Report date June 26, 2026 · Filed September 08, 2026 · Amendment
Amendment: balances below belong to this corrected disclosure, not necessarily a complete replacement of earlier positions.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 241,274 |
Reported balance
After 2026-06-26 transaction · row 1
Amendment: may correct only part of an earlier disclosure.
1 source rowRow 1 · 2026-06-26 · Grant · Acquired 174,081 · Balance 241,274 F1: Restricted stock award pursuant to Tecogen Inc. 2022 Stock Incentive Plan. Restrictions lapse 25% per year. F2: Not applicable F3: Corrected number of shares beneficially owned following restricted stock grant previously reported on Form 4 on June 30, 2026. |
Filing footnotes · ownership attribution and instrument terms
F1: Restricted stock award pursuant to Tecogen Inc. 2022 Stock Incentive Plan. Restrictions lapse 25% per year.
F2: Not applicable
F3: Corrected number of shares beneficially owned following restricted stock grant previously reported on Form 4 on June 30, 2026.
Transaction history
JSON APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| June 26, 2026 Filed Sep 8, 2026 21:08 UTC Amendment | TECOGEN INC. TGEN · Entity 6846 | GrantCommon Stock | 174,081 | $0.00 | $0.00 |
DisclosureSEC source: 0001537435-26-000086 · wk-form4a_1788901707.xml · nonDerivative · entry 1 Rangesh Abinand · CIK 0001917503 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 241,274 F1 · security: Restricted stock award pursuant to Tecogen Inc. 2022 Stock Incentive Plan. Restrictions lapse 25% per year. F2 · price: Not applicable F3 · balance_after: Corrected number of shares beneficially owned following restricted stock grant previously reported on Form 4 on June 30, 2026. Read SEC document |
| June 26, 2026 Filed Jul 1, 2026 00:34 UTC | TECOGEN INC. TGEN · Entity 6846 | GrantStock Option (Right to Buy) · Derivative | 26,041 | $5.17 Strike: $5.17 | $134,631.97 |
DisclosureSEC source: 0001537435-26-000047 · wk-form4_1782866075.xml · derivative · entry 2 Rangesh Abinand · CIK 0001917503 · Director · Chief Executive Officer · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,041 Underlying: Common Stock · 26,041 shares Expires 2036-06-26 F3 · security: Incentive Stock Option pursuant to 2022 Stock Incentive Plan. F2 · derivative.exercise_date: Vests 25% per year. Read SEC document |
| June 26, 2026 Filed Jul 1, 2026 00:34 UTC | TECOGEN INC. TGEN · Entity 6846 | GrantCommon Stock | 174,081 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001537435-26-000047 · wk-form4_1782866075.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: 174,081 F1 · security: Restricted Stock Award pursuant to 2022 Stock Incentive Plan. Vests 25% per year. F1 · price: Restricted Stock Award pursuant to 2022 Stock Incentive Plan. Vests 25% per year. F2 · balance_after: Vests 25% per year. Read SEC document |
| March 20, 2026 Filed Mar 23, 2026 18:33 UTC | TECOGEN INC. TGEN · Entity 6846 | PurchaseCommon Stock | 3,000 | $2.30 | $6,894.00 |
DisclosureSEC source: 0001537435-26-000019 · wk-form4_1774290823.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: 67,193 F1 · shares: 2,500 shares acquired by Abinand Rangesh and 500 shares acquired by daughter Read SEC document |
| July 24, 2025 Filed Jul 28, 2025 15:04 UTC | TECOGEN INC. TGEN · Entity 6846 | GrantStock Option (Right to Buy) · Derivative | 12,048 | $8.35 Strike: $8.35 | $100,600.80 |
DisclosureSEC source: 0001537435-25-000118 · wk-form4_1753715068.xml · derivative · entry 3 Rangesh Abinand · CIK 0001917503 · Director · Chief Executive Officer · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 306,123 Underlying: Common Stock · 12,048 shares Expires 2035-07-24 F2 · derivative.exercise_date: Vests 25% per year Read SEC document |
| July 24, 2025 Filed Jul 28, 2025 15:04 UTC | TECOGEN INC. TGEN · Entity 6846 | GrantStock Option (Right to Buy) · Derivative | 24,075 | $8.35 Strike: $8.35 | $201,026.25 |
DisclosureSEC source: 0001537435-25-000118 · wk-form4_1753715068.xml · derivative · entry 2 Rangesh Abinand · CIK 0001917503 · Director · Chief Executive Officer · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 294,075 Underlying: Common Stock · 24,075 shares Expires 2035-07-24 F2 · derivative.exercise_date: Vests 25% per year Read SEC document |
| July 24, 2025 Filed Jul 28, 2025 15:04 UTC | TECOGEN INC. TGEN · Entity 6846 | GrantCommon Stock | 53,892 | $0.00 | $0.00 |
DisclosureSEC source: 0001537435-25-000118 · wk-form4_1753715068.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: 64,193 F1 · shares: Restricted Stock Award, vests 25% per year Read SEC document |
| September 20, 2023 Filed Sep 27, 2023 17:07 UTC | TECOGEN INC. TGEN · Entity 6846 | GrantStock Option (Right to Buy) · Derivative | 140,000 | $0.88 Strike: $0.88 | $123,200.00 |
DisclosureSEC 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 |
| August 30, 2023 Filed Sep 1, 2023 21:05 UTC | TECOGEN INC. TGEN · Entity 6846 | PurchaseCommon Stock | 800 | $1.02 | $816.00 |
DisclosureSEC 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 | TECOGEN INC. TGEN · Entity 6846 | PurchaseCommon Stock | 200 | $1.02 | $204.00 |
DisclosureSEC 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 15, 2023 Filed Sep 1, 2023 21:05 UTC | TECOGEN INC. TGEN · Entity 6846 | PurchaseCommon Stock | 1 | $0.95 | $0.95 |
DisclosureSEC 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 |
| June 20, 2023 Filed Jun 20, 2023 20:15 UTC | TECOGEN INC. TGEN · Entity 6846 | PurchaseCommon Stock | 1,500 | $1.04 | $1,560.00 |
DisclosureSEC 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 |
| March 20, 2023 Filed Mar 27, 2023 15:33 UTC | TECOGEN INC. TGEN · Entity 6846 | PurchaseCommon Stock | 1,000 | $0.90 | $899.50 |
DisclosureSEC 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 | TECOGEN INC. TGEN · Entity 6846 | PurchaseCommon Stock | 800 | $0.85 | $676.16 |
DisclosureSEC 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.