Form 4/A for TGEN TECOGEN INC.
Accepted 2026-09-08 17:12:11 ET · period of report 2026-06-26 · accession 0001537435-26-000088 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 2026-09-08 17:12 | 2026-06-26 | TGEN | Lafaille Stephen | VP of Business Development | A - Grant | $0.00 | +29.0K | 41.4K | +234% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-06-26 | A | A | 29,013 | $0.00 | 41,389 | D | — | — | (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. |