Quantinuum director buys 14,000 shares at $60

Quantinuum Inc. director Kenneth D. Denman increased his stake through both a purchase and an equity award.

Accepted by SEC EDGAR 06/08/2026 - 04:30 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Quantinuum Inc. director Kenneth D. Denman increased his stake through both a purchase and an equity award. He bought 14,000 shares of Class A Common Stock in an open-market transaction at $60.00 per share on June 5, 2026, bringing his directly held shares to 19,833.

On June 4, 2026, he also received a grant of 5,833 restricted stock units (RSUs), each representing one future share of Class A Common Stock. These RSUs vest in three equal annual installments beginning on June 5, 2027, adding a long-term, stock-based component to his compensation.

Insider Trade Summary

Net Buyer: 14,000 shares

Net Buy 2 txns

Insider DENMAN KENNETH D

Role Director

Bought 14,000 shs ($840K)

Increase in Position 240.0%

Type	Security	Shares	Price	Value
Purchase	Class A Common Stock	14,000	$60.00	$840K
Grant/Award	Class A Common Stock	5,833	$0.00	$0.00

Holdings After Transaction: Class A Common Stock — 19,833 shares (Direct)

Holdings Before and After: Class A Common Stock, 0 to 19,833 shares (Direct)

Other Insiders: 10 other insiders reported open-market purchases of this stock in the 30 days up to this filing.

Footnotes (1)

1. F1. Represents an award of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of Class A Common Stock. The RSUs will vest in three equal annual installments beginning on June 5, 2027.

Key Figures

Open-market purchase: 14,000 shares Purchase price: $60.00 per share Shares held after purchase: 19,833 shares +3 more

6 metrics

Open-market purchase 14,000 shares Class A Common Stock bought on June 5, 2026

Purchase price $60.00 per share Open-market transaction on June 5, 2026

Shares held after purchase 19,833 shares Direct Class A holdings following June 5, 2026 trade

RSU award size 5,833 RSUs Grant on June 4, 2026, each for one Class A share

RSU vesting schedule 3 equal annual installments Beginning June 5, 2027

Net buy direction Net-buy of 14,000 shares transactionSummary netBuySellShares/netBuySellDirection

Key Terms

restricted stock units ("RSUs"), open-market purchase, grant/award acquisition, Class A Common Stock, +1 more

5 terms

restricted stock units ("RSUs") financial

"Represents an award of restricted stock units ("RSUs"), each of which represents a contingent right..."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

open-market purchase financial

"transaction_action": "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

grant/award acquisition financial

"transaction_action": "grant/award acquisition""

Class A Common Stock financial

"security_title": "Class A Common Stock""

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

vest financial

"The RSUs will vest in three equal annual installments beginning on June 5, 2027."

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did Quantinuum (QNT) director Kenneth D. Denman report?

Kenneth D. Denman reported buying 14,000 Quantinuum Class A shares at $60.00 each and receiving 5,833 restricted stock units. The filing covers transactions on June 4 and June 5, 2026, and updates his post-transaction holdings.

How many Quantinuum (QNT) shares does Kenneth D. Denman hold after these transactions?

After the open-market purchase, Kenneth D. Denman directly holds 19,833 shares of Quantinuum Class A Common Stock. This total reflects the 14,000 shares bought on June 5, 2026, in addition to his existing position reported in the Form 4.

At what price did Kenneth D. Denman buy Quantinuum (QNT) stock?

Kenneth D. Denman purchased 14,000 shares of Quantinuum Class A Common Stock at $60.00 per share. This open-market transaction occurred on June 5, 2026, and is classified in the filing as a purchase in the open market or private transaction.

What are the terms of Kenneth D. Denman’s RSU award from Quantinuum (QNT)?

Denman received 5,833 restricted stock units, each equal to one share of Quantinuum Class A Common Stock. The RSUs vest in three equal annual installments starting June 5, 2027, creating a multi‑year, stock-based compensation incentive tied to continued service.

Is Kenneth D. Denman’s Quantinuum (QNT) transaction a purchase or a grant?

The Form 4 shows both a purchase and a grant. Denman bought 14,000 shares in an open-market transaction and separately acquired 5,833 shares through a restricted stock unit award, which vests over three years beginning June 5, 2027.

Does Kenneth D. Denman hold Quantinuum (QNT) shares directly or indirectly?

The filing classifies all reported holdings as direct. Both the 14,000 purchased shares and the shares underlying the 5,833 RSUs are shown with direct ownership, with no indication of trusts, LLCs, or other indirect holding entities in the disclosure.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

DENMAN KENNETH D

(Last) (First) (Middle)

C/O QUANTINUUM INC.

303 S TECHNOLOGY COURT

(Street)

BROOMFIELD COLORADO 80021

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Quantinuum Inc. [ QNT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/04/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	06/04/2026		A		5,833(1)	A	$0	5,833	D
Class A Common Stock	06/05/2026		P		14,000	A	$60	19,833	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents an award of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of Class A Common Stock. The RSUs will vest in three equal annual installments beginning on June 5, 2027.

Remarks:

	/s/ Rajeeb Hazra, Attorney-in-Fact	06/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)