Joel Sendek - 04 Sep 2025 Form 4 Insider Report for Perspective Therapeutics, Inc. (CATX)

Role: Chief Financial Officer
Signature: /s/ Joel Sendek by Chris Nenno, as Attorney-in-Fact
Issuer symbol: CATX
Transactions as of: 04 Sep 2025
Net transactions value: $0
Form type: 4
Filing time: 05 Sep 2025, 16:06:51 UTC
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sendek Joel	Chief Financial Officer	C/O PERSPECTIVE THERAPEUTICS, INC., 2401 ELLIOTT AVENUE, SUITE 320, SEATTLE	/s/ Joel Sendek by Chris Nenno, as Attorney-in-Fact	05 Sep 2025	0001720875

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CATX	Stock option (right to buy)	Award	$0	+600,000		$0.000000	600,000	04 Sep 2025	Common Stock	600,000	$3.54	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The options vest over a four-year period, with one-fourth (1/4) vesting and becoming exercisable on September 4, 2026, and the remaining options vesting and becoming exercisable ratably over the following 36 months, subject to the continuous service of the Reporting Person as of each vesting date.