# C3.ai CEO

entity: /record/c3-ai.md  
predicate: ceo  
page: /record/c3-ai/ceo  
as_of: 2026-10-31  

As of October 31, 2026, C3.ai's CEO on the AsOf record is Thomas M. Siebel, dated May 8, 2026, from a primary source (sec.gov). The record holds 2 claims on C3.ai's CEO, 1 still open and 1 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.

## Current CEO

What the record asserts on 2026-10-31.

- [C3.ai](/record/c3-ai.md) | ceo | Thomas M. Siebel | valid 2026-05-08 to present | conf 0.95 | valid | [clm_B0656EB0BC28](/claim/clm_B0656EB0BC28.md)
  sources: https://www.sec.gov/Archives/edgar/data/1577526/000119312526218253/d147244d8k.htm, https://www.sec.gov/Archives/edgar/data/1577526/000119312526218253/0001193125-26-218253-index.htm

## Every dated value

One claim per line, oldest first. Superseded claims stay visible.

- [C3.ai](/record/c3-ai.md) | ceo | Stephen Ehikian | valid 2025-09-01 to 2026-05-08 | conf 0.95 | superseded | superseded_by [clm_B0656EB0BC28](/claim/clm_B0656EB0BC28.md) | [clm_45296E9AFD38](/claim/clm_45296E9AFD38.md)
  sources: https://www.sec.gov/Archives/edgar/data/1577526/000119312526218253/0001193125-26-218253-index.htm, https://www.wikidata.org/wiki/Q104081972
- [C3.ai](/record/c3-ai.md) | ceo | Thomas M. Siebel | valid 2026-05-08 to present | conf 0.95 | valid | [clm_B0656EB0BC28](/claim/clm_B0656EB0BC28.md)
  sources: https://www.sec.gov/Archives/edgar/data/1577526/000119312526218253/d147244d8k.htm, https://www.sec.gov/Archives/edgar/data/1577526/000119312526218253/0001193125-26-218253-index.htm

## What replaced what

- Stephen Ehikian (2025-09-01 to 2026-05-08, [clm_45296E9AFD38](/claim/clm_45296E9AFD38.md)) was replaced by Thomas M. Siebel from 2026-05-08 ([clm_B0656EB0BC28](/claim/clm_B0656EB0BC28.md))

## Questions this record answers

### What is C3.ai's current CEO?

Thomas M. Siebel, dated May 8, 2026, from a primary source (sec.gov). The record asserts this claim as of October 31, 2026 (status valid, confidence 0.95).

### When did C3.ai's CEO last change?

The latest value on the record is Thomas M. Siebel, dated May 8, 2026; before it the record holds Stephen Ehikian, dated September 1, 2025 and closed on May 8, 2026.

### What was C3.ai's CEO before Thomas M. Siebel?

Stephen Ehikian, valid from September 1, 2025 to May 8, 2026 (status superseded), from a primary source (sec.gov).


## Get this data

- JSON: /v1/entities/c3-ai/ceo (this fact) · /v1/entities/c3-ai?predicates=ceo (with the entity's coverage; add as_of=YYYY-MM-DD for a date)
- MCP: entity_state(entity: "c3-ai", predicates: ["ceo"], scope: "all")
- Entity twin: /record/c3-ai.md · timeline: /timelines/c3-ai.md

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.