Summary
Latest filing:
Lantheus Holdings, Inc. is 10% Owner of Perspective Therapeutics, Inc. (CATX). 2 SEC Form 4 filings on record, most recently on 3 September 2026. Most recent open-market trade: sold $112K of CATX on 3 September 2026. Lifetime open-market sales: $357K.
Recent Transactions
2Every recent SEC Form 4 transaction Lantheus Holdings, Inc. has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Lantheus Holdings, Inc. 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 of CATX open-market activity in the last 12 months
- Jonathan Robert Hunt - $22K of CATX open-market activity in the last 12 months
- Robert F. Williamson III - $20K of CATX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
What is Lantheus Holdings, Inc.?
Lantheus Holdings, Inc. is a corporate entity, tracked as 10% Owner of Perspective Therapeutics, Inc. (CATX). InsiderAlpha holds 2 primary Form 4 filings for it, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Lantheus Holdings, Inc. submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Lantheus Holdings, Inc. been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($357K) across all tracked filings.
Where can I see all of Lantheus Holdings, Inc.'s SEC 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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