---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-125860"
form_type: "8-K"
ticker: "PSTV"
cik: "0001095981"
company_name: "PLUS THERAPEUTICS, INC."
filed_at: "2025-05-23T23:59:59+00:00"
generated_at: "2026-05-20T13:04:14.991952+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Plus Therapeutics receives Nasdaq deficiency notice for late Q1 10-Q filing

## Summary
- Received Nasdaq notice on May 21, 2025 for missing Q1 2025 Form 10-Q filing deadline.
- Must submit a plan to regain compliance by July 21, 2025.
- If plan accepted, Nasdaq can grant exception until November 17, 2025 to file.
- No immediate effect on PSTV stock listing on Nasdaq.
- Company expects to return to normal filing cadence for remainder of 2025.

## SEC filing metadata
- accession: 0001193125-25-125860
- form_type: 8-K
- ticker: PSTV
- cik: 0001095981
- company_name: PLUS THERAPEUTICS, INC.
- filed_at: 2025-05-23T23:59:59+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 3.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1095981/000119312525125860/0001193125-25-125860-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1095981/000119312525125860/d947753d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-125860
- JSON: https://secwatch.observer/filing/0001193125-25-125860.json
- Plain text: https://secwatch.observer/filing/0001193125-25-125860.txt

## Key facts
- Listing & Compliance Notices
  PLUS THERAPEUTICS, INC. received a nasdaq deficiency notice notice regarding late filing (rules 5250(c)(1)).
  - Exchange: nasdaq
  - Notice: deficiency notice
  - Deficiency: late filing
  - Rules: 5250(c)(1)
  source text: May 21, 2025, Plus Therapeutics, Inc. (the “Company”) received a notice (the “Notice”) from the Nasdaq Stock Market LLC (“Nasdaq”), which indicated that, as a result of the Company’s delay in filing its Quarterly Report on Form 10-Q for the period ended March 31, 2025 (the “Quarterly Report”), the Company was not in compliance with Nasdaq Listing Rule 5250(c)(1) (the “Rule”), which requires Nasdaq-listed companies to timely file all required periodic financial reports with the U.S. Securities and Exchange Commission (the “SEC”). The Notice states that the Company has until July 21, 2025, to su
  evidence_url: https://www.sec.gov/Archives/edgar/data/1095981/000119312525125860/0001193125-25-125860-index.htm

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