Quantinuum (QNT) director adds stock and 5,833 RSUs in new Form 4

Rhea-AI Filing Summary

Quantinuum Inc. director Prineha Narang reported new equity activity in Class A Common Stock. On June 5, 2026, Narang made an open-market purchase of 200 shares at $60.00 per share, bringing direct holdings to 6,033 shares.

On June 4, 2026, Narang also received an award of 5,833 restricted stock units, each representing one share of Class A Common Stock. According to the award terms, these RSUs will vest in three equal annual installments beginning on June 5, 2027, adding a long-term equity component to the director’s compensation.

Insider Trade Summary

Net Buyer: 200 shares ($12,000)

Net Buy 2 txns

Insider Narang Prineha

Role null

Bought 200 shs ($12K)

Type	Security	Shares	Price	Value
Purchase	Class A Common Stock	200	$60.00	$12K
Grant/Award	Class A Common Stock	5,833	$0.00	--

Holdings After Transaction: Class A Common Stock — 6,033 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Open-market purchase: 200 shares Purchase price: $60.00 per share Shares held after trade: 6,033 shares +2 more

5 metrics

Open-market purchase 200 shares Class A Common Stock bought at $60.00 on June 5, 2026

Purchase price $60.00 per share Open-market buy of 200 Class A Common shares

Shares held after trade 6,033 shares Direct Class A Common holdings after June 5, 2026 purchase

RSU award size 5,833 RSUs Each RSU equals one Class A Common share

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

Key Terms

restricted stock units ("RSUs"), open-market purchase, grant, award, or other acquisition

3 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, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

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Form 4 Insider Transactions: What Each Field Means →

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^*

Narang Prineha

(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		200	A	$60	6,033	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)

FAQ

What insider transactions did Quantinuum (QNT) director Prineha Narang report?

Prineha Narang reported two equity transactions: an open-market purchase of 200 Class A Common shares at $60.00 each and a grant of 5,833 restricted stock units. Together, these increase her current and future direct equity exposure to Quantinuum.

How many Quantinuum (QNT) shares does Prineha Narang hold after these transactions?

After the open-market purchase, Narang directly holds 6,033 shares of Quantinuum Class A Common Stock. She has also been granted 5,833 restricted stock units, which represent additional potential shares that will vest over time starting in June 2027.

What are the terms of Prineha Narang’s restricted stock unit grant at Quantinuum (QNT)?

Narang received 5,833 restricted stock units, each tied to one Class A Common share. The RSUs will vest in three equal annual installments beginning on June 5, 2027, creating a multi-year incentive that links her compensation to Quantinuum’s long-term performance.

Was Prineha Narang’s Quantinuum (QNT) share purchase an open-market transaction?

Yes. The filing classifies the 200-share transaction as an open-market purchase of Class A Common Stock at $60.00 per share. This means Narang bought shares directly in the market rather than receiving them as part of a compensation or grant program.

How significant is the new equity award for Quantinuum (QNT) director Prineha Narang?

The award of 5,833 restricted stock units is a sizeable long-term equity grant for a director. These units, each equaling one share, will vest over three years starting June 5, 2027, helping align Narang’s incentives with Quantinuum’s future share performance.