---
schema_version: "secwatch.filing_event.v1"
accession: "0000950142-25-002827"
form_type: "8-K"
ticker: "IONQ"
cik: "0001824920"
company_name: "IonQ, Inc."
filed_at: "2025-10-17T23:59:59+00:00"
generated_at: "2026-05-17T03:25:26.833764+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# IonQ files prospectus supplement for resale of 25.3M shares by selling stockholders

## Summary
- Filed prospectus supplement for resale of 25,275,276 common shares by selling stockholders.
- No new shares being offered; proceeds go entirely to selling stockholders.
- Legal opinion from Paul, Weiss, Rifkind, Wharton & Garrison LLP included as Exhibit 5.1.
- Registration statement on Form S-3ASR previously filed in February 2025.

## SEC filing metadata
- accession: 0000950142-25-002827
- form_type: 8-K
- ticker: IONQ
- cik: 0001824920
- company_name: IonQ, Inc.
- filed_at: 2025-10-17T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1824920/000095014225002827/0000950142-25-002827-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1824920/000095014225002827/eh250693365_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950142-25-002827
- JSON: https://secwatch.observer/filing/0000950142-25-002827.json
- Plain text: https://secwatch.observer/filing/0000950142-25-002827.txt

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