---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-035846"
form_type: "8-K"
ticker: "AI"
cik: "0001577526"
company_name: "C3.ai, Inc."
filed_at: "2025-07-24T23:59:59+00:00"
generated_at: "2026-05-18T02:17:50.084860+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# C3.ai CEO Thomas Siebel initiates CEO successor search citing health-related visual impairment

## Summary
- CEO Thomas M. Siebel and board initiated search for new CEO on July 21, 2025; Siebel diagnosed with autoimmune disease causing visual impairment.
- Siebel will remain CEO until successor appointed, then transition to Executive Chairman focusing on strategy, product, partners.
- Search conducted by internationally renowned search firm under committee of board and management.

## SEC filing metadata
- accession: 0001628280-25-035846
- form_type: 8-K
- ticker: AI
- cik: 0001577526
- company_name: C3.ai, Inc.
- filed_at: 2025-07-24T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1577526/000162828025035846/0001628280-25-035846-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1577526/000162828025035846/ai-20250721.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-035846
- JSON: https://secwatch.observer/filing/0001628280-25-035846.json
- Plain text: https://secwatch.observer/filing/0001628280-25-035846.txt

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