Tecogen Inc. (TGEN) — Insider Trading & SEC Form 4 Filings
This page tracks SEC Form 4 insider transactions for Tecogen Inc. (TGEN). Officers, directors, and 10%+ beneficial owners are required to report their TGEN trades to the SEC within two business days.
- 33 recent acquisitions ($451,201)
- 17 recent disposals ($878,052)
- 50 filings in this window
Recent TGEN insider transactions
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Apr 24, 2026 | Ghoniem Ahmed | Director | Buy | 12,723 | $10,000 |
| Apr 24, 2026 | Ghoniem Ahmed | Director | Sell | 12,723 | $10,000 |
| Apr 13, 2026 | Hirsch Susan B | Director | Buy | 5,000 | $18,650 |
| Mar 27, 2026 | Lewis Earl | Director | Buy | 5,000 | $12,596 |
| Mar 27, 2026 | Hirsch Susan B | Director | Buy | 10,000 | $25,400 |
| Mar 26, 2026 | Lewis Earl | Director | Buy | 5,000 | $14,409 |
| Mar 23, 2026 | Whiting John Kimball IV | Officer | Buy | 10,000 | $23,800 |
| Mar 20, 2026 | Hatsopoulos John | Director | Buy | 50,000 | $44,000 |
| Mar 20, 2026 | Deschenes Roger P. | Officer | Buy | 10,000 | $22,300 |
| Mar 20, 2026 | Hatsopoulos John | Director | Sell | 50,000 | $44,000 |
| Mar 20, 2026 | Rangesh Abinand | Director, Officer | Buy | 3,000 | $6,894 |
| Jul 24, 2025 | Deschenes Roger P. | Officer | Buy | 17,964 | — |
| Jul 24, 2025 | Whiting John Kimball IV | Officer | Buy | 11,976 | — |
| Jul 24, 2025 | Rangesh Abinand | Director, Officer | Buy | 53,892 | — |
| Jul 24, 2025 | Lafaille Stephen | Officer | Buy | 11,976 | — |
| Jul 24, 2025 | Whiting John Kimball IV | Officer | Buy | 24,075 | — |
| Jul 24, 2025 | Lafaille Stephen | Officer | Buy | 24,075 | — |
| Jul 24, 2025 | GALITEVA ANGELINA | Director | Buy | 25,000 | — |
| Jul 24, 2025 | GHONIEM AHMED | Director | Buy | 25,000 | — |
| Jul 24, 2025 | LEWIS EARL R | Director | Buy | 25,000 | — |
Frequently asked questions
- What is insider trading for TGEN?
- Insider trading refers to SEC Form 4 filings by officers, directors, and 10%+ owners of Tecogen Inc.. These are public disclosures of legal transactions — open-market buys, sells, option exercises, and gifts — required within two business days of the trade.
- How many insider transactions has TGEN had recently?
- The most recent 50 insider filings for TGEN are shown below, with 33 acquisitions and 17 disposals in this window. Data is sourced directly from SEC EDGAR.
- Where does this insider data come from?
- All insider data is parsed from original SEC Form 4, Form 3, and Form 5 XML filings on EDGAR. Filings marked as amended or superseded are excluded from summary counts.