Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Roger Crystal 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.
- Robert Barrow - $3.98M in DFTX purchases and sales in the last 12 months
- Mark Sullivan - $1.45M in DFTX purchases and sales in the last 12 months
- Daniel Karlin - $1.07M in DFTX purchases and sales in the last 12 months
- Brandi Roberts - $259K in DFTX purchases and sales in the last 12 months
- Matthew T. Wiley - $242K in DFTX purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Roger Crystal?
Roger Crystal is a corporate insider of Definium Therapeutics, Inc. (DFTX). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Roger Crystal last file a Form 4?
The only primary Form 4 on record is dated 15 June 2026.
