SEC Form 3 · accession 0001628280-26-040988
Quantinuum Inc. · QNT
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Period of report
Jun 4, 2026
Accepted (ET)
Jun 4, 2026 · 7:18 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0002110105
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class B Common StockF1,F2 | holding | — | — | — | 124,628,729 | I | See Footnotes |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Common UnitsF1,F2,F3 | — | holding | — | — | — | — | — | Class A Common Stock | 124,628,729 | — | I |
Explanation of responses
- F1Includes (i) 28,630,074 common units of Quantinuum Holdings, LLC ("Common Units") and a corresponding number of shares of Class B common stock of Quantinuum Inc. held directly by Honeywell Holdings International Inc. and (ii) 95,998,655 Common Units and a corresponding number of shares of Class B common stock of Quantinuum Inc. held directly by Honeywell International Inc. ("Honeywell").
- F2Honeywell Holdings International Inc. is a wholly owned subsidiary of Honeywell, which is a publicly traded company with securities listed on The Nasdaq Stock Market LLC.
- F3Each Common Unit may be redeemed or exchanged for one share of Class A common stock of the Issuer (or, at the Issuer's election, cash). The Common Units have no expiration date. Upon the redemption or exchange of Common Units, a number of shares of Class B common stock equal to the number of Common Units that are redeemed or exchanged will automatically be cancelled for no consideration.