D-Wave Quantum withholds 4,066 Nguyen shares for taxes

Nguyen’s reported post-transaction position included 499,236 directly held shares, of which 159,627 were unvested RSUs.

Rhea-AI Filing Summary

D-Wave Quantum Inc. EVP, Chief Legal Officer & GC Diane Nguyen reported that the issuer withheld 4,066 shares to satisfy tax withholding requirements in connection with RSU vesting on October 15, 2026. The reported price was $12.03 per share, and the transaction was not reported as made under a Rule 10b5-1 plan. Nguyen’s reported direct common-stock holdings after the transaction were 499,236 shares, including 159,627 unvested RSUs.

Insider Trade Summary

Tax Withholding: 4,066 shares

Tax Withholding 1 txn

Insider Nguyen Diane

Role EVP, Chief Legal Officer & GC

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock, par value $0.0001 per share ("Common Stock") F1, F2	4,066	$12.03	$49K

Holdings After Transaction: Common Stock, par value $0.0001 per share ("Common Stock") — 499,236 shares (Direct)

Footnotes (2)

1. F1. Represents shares of Common Stock withheld by the Issuer to satisfy tax withholding requirements in connection with the vesting of restricted stock units ("RSUs").
2. F2. Includes 159,627 unvested RSUs.

Key Figures

Shares withheld for tax withholding: 4,066 shares Reported price per share: $12.03 per share Direct common-stock holdings following transaction: 499,236 shares +1 more

4 metrics

Shares withheld for tax withholding 4,066 shares October 15, 2026; in connection with RSU vesting

Reported price per share $12.03 per share Transaction reported for October 15, 2026

Direct common-stock holdings following transaction 499,236 shares Includes 159,627 unvested RSUs

Unvested RSUs 159,627 RSUs Included in reported holdings following the transaction

Key Terms

restricted stock units ("RSUs"), vesting, tax withholding requirements

3 terms

restricted stock units ("RSUs") financial

"vesting of restricted stock units ("RSUs")"

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.

vesting financial

"in connection with the vesting of restricted stock units"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

tax withholding requirements financial

"to satisfy tax withholding requirements"

FAQ

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

How many QBTS shares were withheld from Diane Nguyen for taxes?

D-Wave Quantum’s issuer withheld 4,066 shares on October 15, 2026, to satisfy tax withholding requirements tied to RSU vesting. The reported price was $12.03 per share; the transaction was not reported as made under a Rule 10b5-1 plan.

How many QBTS shares did Diane Nguyen hold after the transaction?

Nguyen’s reported direct common-stock holdings following the transaction were 499,236 shares, including 159,627 unvested RSUs.

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

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Available on EDGAR 10/16/2026 - 05:35 PM EDT Accepted by SEC EDGAR 10/16/2026 - 05:35 PM EDT Learn about SEC filing dates

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^*

Nguyen Diane

(Last) (First) (Middle)

2650 EAST BAYSHORE ROAD

(Street)

PALO ALTO CALIFORNIA 94303

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
D-Wave Quantum Inc. [ QBTS ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Legal Officer & GC

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2026

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
Common Stock, par value $0.0001 per share ("Common Stock")	10/15/2026		F		4,066(1)	D	$12.03	499,236(2)	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 shares of Common Stock withheld by the Issuer to satisfy tax withholding requirements in connection with the vesting of restricted stock units ("RSUs").

2. Includes 159,627 unvested RSUs.

Remarks:

	/s/ Diane Nguyen	10/16/2026
	** 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)