Filings (90d)
0
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies John Hatsopoulos files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Susan B. Hirsch - $44K in TGEN purchases and sales in the last 12 months
- John Kimball Whiting IV - $24K in TGEN purchases and sales in the last 12 months
- Roger P. Deschenes - $22K in TGEN purchases and sales in the last 12 months
- Earl R. Lewis - $14K in TGEN purchases and sales in the last 12 months
- Ahmed Ghoniem - $10K in TGEN purchases and sales in the last 12 months
- Abinand Rangesh - $7K in TGEN purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is John Hatsopoulos?
John Hatsopoulos is a corporate insider, tracked as Director of TECOGEN INC. (TGEN). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did John Hatsopoulos last file a Form 4?
The only primary Form 4 on record is dated 23 March 2026.
