---
schema_version: "secwatch.filing_event.v1"
accession: "0001746473-26-000024"
form_type: "8-K"
ticker: "PLRX"
cik: "0001746473"
company_name: "PLIANT THERAPEUTICS, INC."
filed_at: "2026-03-03T23:59:59+00:00"
generated_at: "2026-05-15T22:18:34.673115+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Pliant Therapeutics extends poison pill expiration to March 2027

## Summary
- Extended stockholder rights agreement expiration from March 11, 2026 to March 11, 2027.
- Amendment entered with Computershare Trust Company on March 3, 2026.
- Company states the extension is not in response to any specific takeover offer.
- Rights may still be earlier redeemed, exchanged or terminated per original terms.

## SEC filing metadata
- accession: 0001746473-26-000024
- form_type: 8-K
- ticker: PLRX
- cik: 0001746473
- company_name: PLIANT THERAPEUTICS, INC.
- filed_at: 2026-03-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 1.01, 3.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1746473/000174647326000024/0001746473-26-000024-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1746473/000174647326000024/plrx-20260303.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001746473-26-000024
- JSON: https://secwatch.observer/filing/0001746473-26-000024.json
- Plain text: https://secwatch.observer/filing/0001746473-26-000024.txt

## Key facts
- Equity Issuances
  PLIANT THERAPEUTICS, INC. issued securities.
  source text: On March 3, 2026, Pliant Therapeutics, Inc. (the “Company”) and Computershare Trust Company, N.A., as rights agent (the “Rights Agent”), entered into an Amendment to Stockholder Rights Agreement (the “Amendment”), amending the Stockholder Rights Agreement, dated as of March 12, 2025, between the Company and the Rights Agent (the “Rights Agreement”). The Amendment changes the final expiration time of the Rights (as defined in the Rights Agreement) from 5:00 p.m., New York City time on March 11, 2026 to 5:00 p.m., New York City time on March 11, 2027.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1746473/000174647326000024/0001746473-26-000024-index.htm

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