---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-174493"
form_type: "8-K"
ticker: "IONQ"
cik: "0001824920"
company_name: "IonQ, Inc."
filed_at: "2025-08-06T23:59:59+00:00"
generated_at: "2026-05-17T19:52:08.575872+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# IonQ CEO Niccolo de Masi appointed Chairman; Executive Chairman Peter Chapman departs board

## Summary
- Niccolo de Masi, CEO, becomes Chairman of the Board effective Aug 1, 2025, succeeding Peter Chapman.
- Peter Chapman steps down from board and company, triggering severance: one year base salary plus target bonus, pro-rated 2025 bonus, COBRA premiums for one year.
- Chapman receives unpaid retention bonus from Dec 2024 agreement; unvested RSUs/stock options fully vest; PSUs vest prorated at target.
- No family relationships or related party transactions with Niccolo de Masi as disclosed.

## SEC filing metadata
- accession: 0001193125-25-174493
- form_type: 8-K
- ticker: IONQ
- cik: 0001824920
- company_name: IonQ, Inc.
- filed_at: 2025-08-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1824920/000119312525174493/0001193125-25-174493-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1824920/000119312525174493/d946730d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-174493
- JSON: https://secwatch.observer/filing/0001193125-25-174493.json
- Plain text: https://secwatch.observer/filing/0001193125-25-174493.txt

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