Updated Jul 16, 2026
Hirsch Susan B has filed 2 SEC Form 4 filings across 2 companies in the last 90 days — buying. Lifetime open-market purchases: $44K.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-04-14 | TGEN | TECOGEN INC. | P — Open-market purchase | 5.0K | $3.73 | $19K |
| 2026-03-27 | TGEN | TECOGEN INC. | P — Open-market purchase | 10.0K | $2.54 | $25K |
Hirsch Susan B is a corporate insider — currently tracked as Director of TECOGEN INC. (TGEN). InsiderAlpha tracks every SEC Form 4 filing in real time.
2 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 2 open-market purchases ($44K) and 0 open-market sales () across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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