Tecogen Inc. (TGEN) Insider Trading
Directors, officers and holders of more than 10% of TGEN report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 78 transactions on file: 8 with code P, 4 with code S and 38 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 26, 2026 | Whiting John Kimball IV | General Counsel & Secretary | A Award | 19,342 | Not measured | Not measured |
| Jun 26, 2026 | Galiteva Angelina | Director | A Award | 25,000 | $5.17 | $129,250 |
| Jun 26, 2026 | Lafaille Stephen | VP of Business Development | A Award | 29,013 | Not measured | Not measured |
| Jun 26, 2026 | Panora Robert | COO and President | A Award | 9,671 | Not measured | Not measured |
| Jun 26, 2026 | Rangesh Abinand | Chief Executive Officer | A Award | 174,081 | Not measured | Not measured |
| Jun 26, 2026 | Deschenes Roger P. | Chief Financial Officer | A Award | 29,013 | Not measured | Not measured |
| Jun 26, 2026 | Panora Robert | COO and President | A Award | 26,041 | $5.17 | $134,632 |
| Jun 26, 2026 | Rangesh Abinand | Chief Executive Officer | A Award | 26,041 | $5.17 | $134,632 |
| Jun 26, 2026 | Hirsch Susan B | Director | A Award | 25,000 | $5.17 | $129,250 |
| Jun 26, 2026 | ALBERTINE JOHN M | Director | A Award | 25,000 | $5.17 | $129,250 |
| Jun 26, 2026 | Lewis Earl | Director | A Award | 25,000 | $5.17 | $129,250 |
| Jun 26, 2026 | Ghoniem Ahmed | Director | A Award | 25,000 | $5.17 | $129,250 |
| Apr 24, 2026 | Ghoniem Ahmed | Director | P Purchase | 12,723 | $0.7860 | $10,000 |
| Apr 24, 2026 | Ghoniem Ahmed | Director | M Exercise | 12,723 | $0.7860 | $10,000 |
| Apr 13, 2026 | Hirsch Susan B | Director | P Purchase | 5,000 | $3.73 | $18,650 |
| Mar 27, 2026 | Hirsch Susan B | Director | P Purchase | 10,000 | $2.54 | $25,400 |
| Mar 27, 2026 | Lewis Earl | Director | P Purchase | 5,000 | $2.52 | $12,596 |
| Mar 26, 2026 | Lewis Earl | Director | P Purchase | 5,000 | $2.88 | $14,409 |
| Mar 23, 2026 | Whiting John Kimball IV | General Counsel & Secretary | P Purchase | 10,000 | $2.38 | $23,800 |
| Mar 20, 2026 | Deschenes Roger P. | Chief Financial Officer | P Purchase | 10,000 | $2.23 | $22,300 |
| Mar 20, 2026 | Hatsopoulos John | Director | M Exercise | 50,000 | $0.8800 | $44,000 |
| Mar 20, 2026 | Rangesh Abinand | Chief Executive Officer | P Purchase | 3,000 | $2.30 | $6,894 |
| Mar 20, 2026 | Hatsopoulos John | Director | M Exercise | 50,000 | $0.8800 | $44,000 |
| Jul 24, 2025 | Lafaille Stephen | VP of Business Development | A Award | 11,976 | Not measured | Not measured |
| Jul 24, 2025 | Whiting John Kimball IV | General Counsel & Secretary | A Award | 11,976 | Not measured | Not measured |
| Jul 24, 2025 | Deschenes Roger P. | Chief Financial Officer | A Award | 17,964 | Not measured | Not measured |
| Jul 24, 2025 | Rangesh Abinand | Chief Executive Officer | A Award | 53,892 | Not measured | Not measured |
| Jul 24, 2025 | ALBERTINE JOHN M | Director | A Award | 25,000 | $8.35 | $208,750 |
| Jul 24, 2025 | Lafaille Stephen | VP of Business Development | A Award | 24,075 | $8.35 | $201,026 |
| Jul 24, 2025 | Whiting John Kimball IV | General Counsel & Secretary | A Award | 24,075 | $8.35 | $201,026 |
| Jul 24, 2025 | Deschenes Roger P. | Chief Financial Officer | A Award | 12,063 | $8.35 | $100,726 |
| Jul 24, 2025 | Rangesh Abinand | Chief Executive Officer | A Award | 24,075 | $8.35 | $201,026 |
| Jul 24, 2025 | Rangesh Abinand | Chief Executive Officer | A Award | 12,048 | $8.35 | $100,601 |
| Jul 24, 2025 | Hirsch Susan B | Director | A Award | 25,000 | $8.35 | $208,750 |
| Jul 24, 2025 | Ghoniem Ahmed | Director | A Award | 25,000 | $8.35 | $208,750 |
| Jul 24, 2025 | Lewis Earl | Director | A Award | 25,000 | $8.35 | $208,750 |
| Jul 24, 2025 | Galiteva Angelina | Director | A Award | 25,000 | $8.35 | $208,750 |
| Jun 24, 2025 | Panora Robert | COO and President | S Sale | 900 | $6.86 | $6,174 |
| Jun 23, 2025 | Panora Robert | COO and President | S Sale | 31,800 | $6.36 | $202,248 |
| Jun 23, 2025 | Lafaille Stephen | VP of Business Development | X In-the-Money | 10,000 | $1.10 | $11,000 |
| Jun 23, 2025 | Lafaille Stephen | VP of Business Development | X In-the-Money | 10,000 | $1.10 | $11,000 |
| Jun 23, 2025 | Lafaille Stephen | VP of Business Development | S Sale | 10,000 | $7.25 | $72,500 |
| Jun 18, 2025 | Panora Robert | COO and President | S Sale | 13,000 | $5.03 | $65,390 |
| Jun 16, 2025 | Panora Robert | COO and President | M Exercise | 30,000 | $0.7100 | $21,300 |
| Jun 16, 2025 | Panora Robert | COO and President | X In-the-Money | 12,723 | $0.7900 | $10,051 |
| Jun 16, 2025 | Panora Robert | COO and President | X In-the-Money | 30,000 | $0.7100 | $21,300 |
| Jun 16, 2025 | Panora Robert | COO and President | X In-the-Money | 52,500 | $1.10 | $57,750 |
| Jun 16, 2025 | Panora Robert | COO and President | M Exercise | 52,500 | $1.10 | $57,750 |
| Jun 16, 2025 | Panora Robert | COO and President | M Exercise | 12,723 | $0.7860 | $10,000 |
| Jun 16, 2025 | Panora Robert | COO and President | M Exercise | 12,723 | $0.7860 | $10,000 |
The full Form 4 history is on the TGEN company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.