Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Robert F. Williamson III 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.
- Lantheus Alpha Therapy, LLC - $1.13M in CATX purchases and sales in the last 12 months
- Lantheus Holdings, Inc. - $357K in CATX purchases and sales in the last 12 months
- Jonathan Robert Hunt - $22K in CATX purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Robert F. Williamson III?
Robert F. Williamson III is a corporate insider of Perspective Therapeutics, Inc. (CATX). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Robert F. Williamson III last file a Form 4?
The most recent primary Form 4 on record is dated 4 March 2026, one of 3 filings going back to 2024.
Has Robert F. Williamson III been buying or selling stock?
Recorded transactions: 3 open-market purchases ($43K) and 0 open-market sales across all tracked filings.
