---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-248648"
form_type: "8-K"
ticker: "TPST"
cik: "0001544227"
company_name: "Tempest Therapeutics, Inc."
filed_at: "2026-05-29T21:01:10+00:00"
generated_at: "2026-05-29T21:02:25.402730+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Tempest Therapeutics director Simantov resigns from Board effective May 23, 2026

## Summary
- Ms. Simantov resigned from the Board; no disagreement with company operations or policies.
- Separation Agreement waives all accrued and unpaid retainer fees from director compensation program.
- Her outstanding stock option awards and share ownership are unaffected; indemnification agreement continues for six years.
- Full text of Separation Agreement will be filed with the Company's Q2 2026 10-Q.

## SEC filing metadata
- accession: 0001193125-26-248648
- form_type: 8-K
- ticker: TPST
- cik: 0001544227
- company_name: Tempest Therapeutics, Inc.
- filed_at: 2026-05-29T21:01:10+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1544227/000119312526248648/0001193125-26-248648-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1544227/000119312526248648/d220128d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-248648
- JSON: https://secwatch.observer/filing/0001193125-26-248648.json
- Plain text: https://secwatch.observer/filing/0001193125-26-248648.txt

## Source-grounded claims
- claim_id: 561bc49325
  claim: Simantov resigned as Director at Tempest Therapeutics, Inc..
  evidence_excerpt: On May 23, 2026, Ms. Simantov notified Tempest Therapeutics, Inc. (the "Company") of her resignation from the Board of Directors of the Company (the "Board"), effective as of such date.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1544227/000119312526248648/0001193125-26-248648-index.htm

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