Lantheus Holdings, Inc. sold $112K of CATX
Lantheus Holdings, Inc. sold 35,769 shares of Perspective Therapeutics, Inc. (CATX) at $3.12 ($0.11M total) on 2026-09-01.
How this was made
The 30-second read
Why it matters
The disclosed sale is modest and unlikely to move the stock significantly.
Market read
Primary disclosure of a small insider sell; low trading relevance.
What to watch
The insider remains a 10% owner; the sale represents less than 0.3% of holdings.
Background
SEC Form 4 filing reports an insider transaction for Perspective Therapeutics.
Ticker impact
Form 4 disclosed Lantheus sold 35,769 shares of Perspective Therapeutics for $111.6K on Sep 1, 2026.
Potential modest dip or flat price action.
Sale size is small relative to total holdings and market cap; no 10b5-1 plan indicates discretionary sale.
Market effects
Limited impact on the biotech sector.
No regional market effect.
Not globally material.
Counterpoint
Despite the small sale, some traders may view any insider sell as a bearish signal.
Key entities
- CompanyPerspective Therapeutics, Inc.
Biotech firm (NASDAQ: CATX) whose insider sold shares.
- InsiderLantheus Holdings, Inc.
Reporter of the Form 4, holding a 10% stake.