Lafaille Stephen's Form 4 filing
Tecogen Inc. (TGEN) · filed Jun 24, 2025
- Accession no.
- 0001537435-25-000064
- Filed
- Jun 24, 2025
- Trade date
- Mar 3-Jun 23, 2025
- Filing delay
- 113 daysLate
- Rule 10b5-1 plan
- Not checked
This filing lists 9 non-derivative transactions and 4 derivative transactions. Open-market purchases total $1.00K. Open-market sales total $345.8K. It was filed 113 days after the trade, past the 2-business-day deadline.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Lafaille StephenCIK 0002074096 | Officer (VP of Business Development) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Mar 3, 2025 | Common Stock | PPurchaseAcquired | +400 | $2.50 | +$1,000 | 400 | Direct | |
| Jun 3, 2025 | Common Stock | XIn-the-money exerciseAcquired | +10,000 | $0.71F1 | +$7,100 | 10,400 | Direct | |
| Jun 3, 2025 | Common Stock | SSaleDisposed | −10,000 | $4.88F2 | −$48,800 | 400 | Direct | |
| Jun 4, 2025 | Common Stock | XIn-the-money exerciseAcquired | +15,000 | $0.71F1 | +$10,650 | 15,400 | Direct | |
| Jun 4, 2025 | Common Stock | SSaleDisposed | −15,000 | $5.00F3 | −$75,000 | 400 | Direct | |
| Jun 6, 2025 | Common Stock | XIn-the-money exerciseAcquired | +25,000 | $1.10F4 | +$27,500 | 25,400 | Direct | |
| Jun 6, 2025 | Common Stock | SSaleDisposed | −25,000 | $5.98F5 | −$149,500 | 400 | Direct | |
| Jun 23, 2025 | Common Stock | XIn-the-money exerciseAcquired | +10,000 | $1.10F4 | +$11,000 | 10,400 | Direct | |
| Jun 23, 2025 | Common Stock | SSaleDisposed | −10,000 | $7.25 | −$72,500 | 400 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 3, 2025 | Common Stock | XIn-the-money exerciseDisposed | −50,000 | $0.71 | −$7,100 | 40,000 | Direct | |
| Jun 4, 2025 | Common Stock | XIn-the-money exerciseDisposed | −40,000 | $0.71 | −$10,650 | 25,000 | Direct | |
| Jun 6, 2025 | Common Stock | XIn-the-money exerciseDisposed | −52,500 | $1.10 | −$27,500 | 27,500 | Direct | |
| Jun 23, 2025 | Common Stock | XIn-the-money exerciseDisposed | −25,000 | $1.10 | −$11,000 | 17,500 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F1
Shares acquired pursuant to exercise of Stock Option Agreement dated 7/9/2020
Referenced by the price of 2 transactions in Table I.
- F2
Multiple share sales between $4.75 and $5.25 per share
Referenced by the price of 1 transaction in Table I.
- F3
10,000 shares sold for $4.90 per share, and 5,000 shares sold for $5.10 per share
Referenced by the price of 1 transaction in Table I.
- F4
Shares acquired pursuant to stock option agreement dated 1/21/2022
Referenced by the price of 2 transactions in Table I.
- F5
Multiple share sales between $5.85 and $6.10
Referenced by the price of 1 transaction in Table I.