Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Constantine Chinoporos 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.
- Michelle Robertson - $19K in GERN purchases and sales in the last 12 months
- Stacy J. Kanter - $5K in APLT purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Constantine Chinoporos?
Constantine Chinoporos is a corporate insider of GERON CORP (GERN). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Constantine Chinoporos last file a Form 4?
The most recent primary Form 4 on record is dated 26 March 2026, one of 2 filings going back to 2026.
