Company profile
Tecogen Inc. Insider Trading
TGENEvery SEC Form 4 insider trading filing for Tecogen Inc. (TGEN) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- NYSE
- Sector
- Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip
- CIK
- 0001537435
- Filings
- 122
- Insiders
- 12
- Last filing
- 2026-06-26
Activity summary
No insider transactions in the last 30 days. The most recent was on June 26, 2026, when Angelina Galiteva bought 25,000 shares. 122 filings from 12 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q3 23 to Q2 26. Tecogen Inc. insiders are net buyers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $1.8M.
90 day insight
Over the last 90 days, Tecogen Inc. insiders bought $646K across 10 transactions with no open-market sales.
- Most active insider: Angelina Galiteva with 1 transaction totaling $129K.
- Largest single purchase: $129K by Angelina Galiteva on Jun 26, 2026.
Activity skews bullish: buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 26, 2026 | Angelina Galiteva | TGEN | Award | 25,000 | $5.17 | $129K |
| Jun 26, 2026 | Ahmed Ghoniem | TGEN | Award | 25,000 | $5.17 | $129K |
| Jun 26, 2026 | John M Albertine | TGEN | Award | 25,000 | $5.17 | $129K |
| Jun 26, 2026 | Earl Lewis | TGEN | Award | 25,000 | $5.17 | $129K |
| Jun 26, 2026 | Susan B Hirsch | TGEN | Award | 25,000 | $5.17 | $129K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Tecogen Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings: institutional holders report positions within 45 days of quarter end. Joined with insider activity above: see who's loading up institutionally while insiders are trading. Full 13F-HR API →