Lafaille Stephen — SEC Form 4 filings
SEC reporting owner CIK 2074096. 4 Form 4 filings on record with FilingPulse; latest filed 2026-09-08.
Transaction summary — filings shown
Covers all 4 filings on record, filed 2025-06-24 to 2026-09-08. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 400 shares, $1,000 total (shares × price as filed).
- Open-market sales (code S, non-derivative): 4 legs across 1 filing — 60,000 shares, $345,800 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 12.
- Largest priced transaction: sale of 25,000 shares @ $5.98 ($149,500) in TECOGEN INC., filed 2025-06-24.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| TECOGEN INC. (TGEN) | VP of Business Development | 4 | 1 leg · 400 sh · $1,000 | 4 legs · 60,000 sh · $345,800 | 12 |
Form 4 filings — Lafaille Stephen
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-08 | 4/A | TECOGEN INC. (TGEN) | Grant/award (A): 29,013 @ $0 | EDGAR |
| 2026-06-30 | 4 | TECOGEN INC. (TGEN) | Grant/award (A): 29,013 | EDGAR |
| 2025-07-28 | 4 | TECOGEN INC. (TGEN) | Grant/award (A): 11,976 @ $0 · Grant/award (A): 24,075 (derivative) @ $8.35 | EDGAR |
| 2025-06-24 | 4 | TECOGEN INC. (TGEN) | Purchase (P): 400 @ $2.50 · Option exercise/expiry (X): 10,000 @ $0.71 · Sale (S): 10,000 @ $4.88 · Option exercise/expiry (X): 15,000 @ $0.71 · Sale (S): 15,000 @ $5 · Option exercise/expiry (X): 25,000 @ $1.10 · +7 more | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
Need this as JSON?
GET https://api.filingpulse.io/v1/insider-trades?owner_cik=2074096 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →