SEC Form 4/A · accession 0001808199-26-000003
TECOGEN INC. · TGEN
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
This is an amendment (Form 4/A). It replaces an earlier filing for the same period.
Reporting owner
John Kimball Whiting IV
Officer — General Counsel & Secretary
Period of report
Jun 26, 2026
Accepted (ET)
Sep 8, 2026 · 5:11 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001537435
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1,F2,F3 | Jun 26, 2026 | A | 19,342 | $0.00 | A | 41,954 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Restricted stock award pursuant to Tecogen Inc. 2022 Stock Incentive Plan. Restrictions lapse 25% per year.
- F2Not applicable
- F3Corrected number of shares beneficially owned following restricted stock grant previously reported on June 30, 2026.
Remarks
Filed to amend Form 4 filed by Reporting Person on June 30, 2026.