Viant CFO has 24K shares withheld for taxes

Viant Technology’s CFO had shares withheld for taxes upon RSU vesting, an administrative event that did not involve an open-market sale.

Rhea-AI Filing Summary

Viant Technology Inc. (DSP) reported that Chief Financial Officer Larry Madden had 24,016 shares of Class A common stock withheld on September 10, 2026 to satisfy tax withholding obligations arising from the vesting of 44,513 restricted stock units. The shares were withheld by the company and were neither issued to nor sold by Madden. Following this administrative tax-withholding event, he holds 374,355 shares of Class A common stock directly.

Insider Trade Summary

Tax Withholding: 24,016 shares

Tax Withholding 1 txn

Insider MADDEN LARRY

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock F1	24,016	$12.74	$306K

Holdings After Transaction: Class A Common Stock — 374,355 shares (Direct)

Footnotes (1)

1. F1. Shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 44,513 restricted stock units on September 10, 2026. These shares were neither issued to nor sold by the Reporting Person.

Key Figures

Shares withheld for taxes: 24,016 shares RSUs vesting: 44,513 restricted stock units Price used for tax withholding: $12.74 per share +1 more

4 metrics

Shares withheld for taxes 24,016 shares Withheld on September 10, 2026 to satisfy tax withholding obligations

RSUs vesting 44,513 restricted stock units Vested on September 10, 2026, triggering the tax withholding

Price used for tax withholding $12.74 per share Value applied to the 24,016 withheld shares

Shares held after transaction 374,355 shares CFO’s direct Class A common stock holdings after the tax-withholding event

Key Terms

restricted stock units, tax withholding obligations

2 terms

restricted stock units financial

"in connection with the vesting of 44,513 restricted stock units on September 10, 2026"

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 obligations financial

"Shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting"

FAQ

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

What insider transaction did Viant Technology Inc. (DSP) disclose for its CFO?

Viant Technology disclosed that CFO Larry Madden had 24,016 shares of Class A common stock withheld on September 10, 2026 to cover tax withholding obligations related to vesting restricted stock units. The shares were withheld by the company, not sold in the market.

How many Viant Technology (DSP) shares does the CFO hold after this Form 4 event?

After the tax-withholding event, CFO Larry Madden directly holds 374,355 shares of Viant Technology Class A common stock. This figure reflects his position following the withholding of shares for tax obligations tied to restricted stock unit vesting.

Was the Viant Technology (DSP) CFO’s Form 4 transaction an open-market sale?

No. The Form 4 states that 24,016 shares were withheld by Viant Technology to satisfy tax withholding obligations on RSU vesting and that these shares were neither issued to nor sold by CFO Larry Madden. It was an administrative tax-withholding event, not a market sale.

What triggered the share withholding reported for Viant Technology (DSP) CFO Larry Madden?

The withholding of 24,016 shares was triggered by the vesting of 44,513 restricted stock units on September 10, 2026. Viant Technology retained those shares to satisfy Madden’s tax withholding obligations associated with that vesting.

Was the Viant Technology (DSP) CFO’s tax-withholding transaction under a Rule 10b5-1 plan?

The filing indicates that the Rule 10b5-1 plan affirmation box is not checked, so no Rule 10b5-1 trading plan is reported in connection with this tax-withholding transaction for CFO Larry Madden.

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

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Available on EDGAR 09/14/2026 - 07:27 PM Accepted by SEC EDGAR 09/14/2026 - 07:27 PM 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^*

MADDEN LARRY

(Last) (First) (Middle)

C/O VIANT TECHNOLOGY INC.

2722 MICHELSON DRIVE, SUITE 100

(Street)

IRVINE CALIFORNIA 92612

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Viant Technology Inc. [ DSP ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/10/2026

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	09/10/2026		F		24,016(1)	D	$12.74	374,355	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. Shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 44,513 restricted stock units on September 10, 2026. These shares were neither issued to nor sold by the Reporting Person.

Remarks:

	/s/ Larry Madden	09/14/2026
	** 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)