---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-075697"
form_type: "8-K"
ticker: "RIGL"
cik: "0001034842"
company_name: "RIGEL PHARMACEUTICALS INC"
filed_at: "2024-06-27T23:59:59+00:00"
generated_at: "2026-06-01T00:55:13.056301+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Rigel Pharmaceuticals effects 1-for-10 reverse stock split effective June 27, 2024

## Summary
- Board approved 1-for-10 reverse split on June 15; effective June 27 at 12:01 a.m. ET.
- Common stock now trades under new CUSIP 766559702.
- No fractional shares issued; cash paid for fractions based on prior-day closing price.
- Stockholders authorized a split ratio range of 1:2 to 1:20 at May 24, 2024 annual meeting.
- Amendment to certificate of incorporation filed with Delaware Secretary of State.

## SEC filing metadata
- accession: 0001104659-24-075697
- form_type: 8-K
- ticker: RIGL
- cik: 0001034842
- company_name: RIGEL PHARMACEUTICALS INC
- filed_at: 2024-06-27T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1034842/000110465924075697/0001104659-24-075697-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1034842/000110465924075697/tm2417992d2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-075697
- JSON: https://secwatch.observer/filing/0001104659-24-075697.json
- Plain text: https://secwatch.observer/filing/0001104659-24-075697.txt

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