D-Wave exec has 1,535 shares withheld for taxes

D-Wave Quantum Inc.’s EVP & CISO reported tax-related share withholding tied to RSU vesting, with over 133,000 shares still held directly.

Available on EDGAR 09/16/2026 - 06:10 PM EDT Accepted by SEC EDGAR 09/16/2026 - 06:09 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

D-Wave Quantum Inc. (QBTS) reported that Exec. Vice President & CISO Stanley T. Black had 1,535 shares of Common Stock withheld on September 15, 2026 to satisfy tax withholding requirements in connection with the vesting of restricted stock units. Following this withholding, he directly holds 133,278 shares of Common Stock, including 128,544 unvested RSUs.

Insider Trade Summary

Tax Withholding: 1,535 shares

Tax Withholding 1 txn

Insider BLACK STANLEY T

Role Exec. Vice President & CISO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock, par value $0.0001 per share ("Common Stock") F1, F2	1,535	$16.83	$26K

Holdings After Transaction: Common Stock, par value $0.0001 per share ("Common Stock") — 133,278 shares (Direct)

Holdings Before and After: Common Stock, par value $0.0001 per share ("Common Stock"), 134,813 to 133,278 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 128,544 unvested RSUs.

Key Figures

Shares withheld for taxes: 1,535 shares Withholding reference price: $16.83 per share Shares held after transaction: 133,278 shares +1 more

4 metrics

Shares withheld for taxes 1,535 shares Common Stock withheld on September 15, 2026 to satisfy tax withholding on RSU vesting

Withholding reference price $16.83 per share Reported value per share for the 1,535 withheld shares

Shares held after transaction 133,278 shares Direct Common Stock holdings of Stanley T. Black following the withholding

Unvested RSUs included in holdings 128,544 RSUs Unvested restricted stock units included within post-transaction holdings

Key Terms

restricted stock units, tax withholding requirements, unvested RSUs

3 terms

restricted stock units financial

"in connection with the vesting of restricted stock units ("RSUs")"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding requirements financial

"withheld by the Issuer to satisfy tax withholding requirements in connection"

unvested RSUs financial

"Includes 128,544 unvested RSUs."

FAQ

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

What insider transaction did D-Wave Quantum (QBTS) report for Stanley T. Black?

D-Wave Quantum reported that Exec. Vice President & CISO Stanley T. Black had 1,535 shares of Common Stock withheld on September 15, 2026 to satisfy tax withholding requirements related to the vesting of restricted stock units.

Was the QBTS insider transaction a market sale or tax withholding event?

The QBTS insider transaction was a tax withholding event, not a market sale. 1,535 shares of Common Stock were withheld by the issuer to satisfy tax withholding requirements upon vesting of restricted stock units.

How many QBTS shares does Stanley T. Black hold after this Form 4 transaction?

After the reported transaction, Stanley T. Black directly holds 133,278 shares of D-Wave Quantum Common Stock, which the filing states includes 128,544 unvested RSUs.

At what value were the withheld QBTS shares reported in the Form 4?

The 1,535 withheld shares were reported at $16.83 per share, consistent with a transaction flagged as payment of tax liability by delivering or withholding securities in connection with RSU vesting.

Was the QBTS insider transaction under a Rule 10b5-1 trading plan?

The Form 4 indicates that the Rule 10b5-1 checkbox is not affirmed, so this transaction is not reported as made pursuant to a Rule 10b5-1 trading plan.

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

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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^*

BLACK STANLEY T

(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)
	Exec. Vice President & CISO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2026

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")	09/15/2026		F		1,535(1)	D	$16.83	133,278(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 128,544 unvested RSUs.

Remarks:

	/s/ Stanley T. Black	09/16/2026
	** 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)