Andrew John Hugh MacIntyre Sims - 13 Aug 2025 Form 4/A - Amendment Insider Report for PLUS THERAPEUTICS, INC. (PSTV)

Role: Chief Financial Officer
Signature: /s/ Andrew Sims
Issuer symbol: PSTV
Transactions as of: 13 Aug 2025
Net transactions value: $0
Form type: 4/A - Amendment
Filing time: 03 Oct 2025, 16:30:02 UTC
Date Of Original Report: 15 Aug 2025
Previous filing: 20 Feb 2025
Next filing: 03 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sims Andrew John Hugh MacIntyre	Chief Financial Officer	C/O PLUS THERAPEUTICS INC., 4200 MARATHON BOULEVARD, SUITE 200, AUSTIN	/s/ Andrew Sims	03 Oct 2025	0001802687

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	PSTV	Stock Option (Right to Buy)	Award	$0	+1,379,636		$0.000000	1,379,636	13 Aug 2025	Common Stock	1,379,636	$0.5744	Direct	F1
transaction	PSTV	Restricted Stock Units	Award	$0	+459,878		$0.000000	459,878	13 Aug 2025	Common Stock	459,878		Direct	F2

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

Explanation of Responses:

Id	Content
F1	The options vest over four years in equal 1/48th increments on each monthly anniversary of the issuance.
F2	This amendment is being filed to correct a Form 4 filed on August 15, 2025, which inadvertently disclosed the incorrect vesting terms of the Restricted Stock Units ("RSUs"). The RSUs awarded on August 13, 2025 vest over twelve quarters, vesting in substantially equal 1/12th increments beginning with the quarter ended September 30, 2025. The RSUs convert into shares of Common Stock upon vesting on a one for one basis.

Content

The options vest over four years in equal 1/48th increments on each monthly anniversary of the issuance.

This amendment is being filed to correct a Form 4 filed on August 15, 2025, which inadvertently disclosed the incorrect vesting terms of the Restricted Stock Units ("RSUs"). The RSUs awarded on August 13, 2025 vest over twelve quarters, vesting in substantially equal 1/12th increments beginning with the quarter ended September 30, 2025. The RSUs convert into shares of Common Stock upon vesting on a one for one basis.