3Filing Date: Jul 27, 2026

Quantinuum Inc. (QNT)

Initial Statement of Beneficial Ownership

View SEC Filing
ACC: 0001193125-26-318157
Total Value$0
Trades1
Insiders1

Transaction Details

O'Byrne Rory Gordon
Chief HR Officer·Direct
Class A Common Stock
Shares0
Price-
Total Value$0
Shares Owned After167.19K
Footnotes ▸

Represents restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of Class A Common Stock. The RSUs will vest according to the applicable grant agreement.

Post-Transaction Holdings

O'Byrne Rory Gordon · Chief HR Officer
SecuritySharesChange
Class A Common Stock167.19K-
Original SEC Filing Textexpand_more
=== SEC Form 3 — Statement of Changes in Beneficial Ownership === Document Type: 3 Period of Report: 2026-07-17 --- Issuer --- Name: Quantinuum Inc. (QNT) CIK: 0002110105 --- Reporting Owner --- Name: O'Byrne Rory Gordon CIK: 0002143607 Role: Officer (Chief HR Officer) --- Holdings --- [Holding #1] Security: Class A Common Stock Ownership: D (Direct) Footnotes: [F1] Represents restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of Class A Common Stock. The RSUs will vest according to the applicable grant agreement. --- Footnotes (Complete Index) --- F1: Represents restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of Class A Common Stock. The RSUs will vest according to the applicable grant agreement. --- Signature --- /s/ /s/ Robin Schulman, Attorney-in-Fact (2026-07-27)

keid analysis is for reference only and does not constitute investment advice.