---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-142093"
form_type: "8-K"
ticker: "PSTV"
cik: "0001095981"
company_name: "PLUS THERAPEUTICS, INC."
filed_at: "2025-06-17T23:59:59+00:00"
generated_at: "2026-05-19T04:13:02.987926+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Plus Therapeutics cuts Series B warrant shares from 1.26B to 35.5M; cancels Series A warrants

## Summary
- Cancelled all Series A warrants exercisable for up to 280M shares of common stock.
- Series B warrants amended to reduce total shares issuable from ~1.26B to ~35.5M; cashless exercise ratio cut from 3:1 to 1:1.
- Investors agreed to return ~12.2M Private Placement Shares and Pre-Funded Warrants in exchange for 115% repayment from future capital raises.
- Registration Rights Agreement terminated; restrictions on subsequent equity sales waived.

## SEC filing metadata
- accession: 0001193125-25-142093
- form_type: 8-K
- ticker: PSTV
- cik: 0001095981
- company_name: PLUS THERAPEUTICS, INC.
- filed_at: 2025-06-17T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 1.01, 3.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1095981/000119312525142093/0001193125-25-142093-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1095981/000119312525142093/d942989d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-142093
- JSON: https://secwatch.observer/filing/0001193125-25-142093.json
- Plain text: https://secwatch.observer/filing/0001193125-25-142093.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.