Viant Insider Sale: CFO Larry Madden Sells 13,006 Shares at $9.73

Rhea-AI Filing Summary

Larry Madden, Chief Financial Officer of Viant Technology Inc. (DSP), reported a sale of Class A common stock on 09/15/2025. The filing shows 13,006 shares were sold at $9.7274 per share to cover withholding taxes tied to the vesting and settlement of restricted stock units. After the transaction, the reporting person beneficially owned 423,255 shares. The Form 4 is a routine insider disclosure indicating a tax-withholding sale rather than an open-market divestiture.

Insights

Securities Analyst

TL;DR: Routine tax-withholding sale of 13,006 shares; not indicative of a change in control or strategy.

The Form 4 discloses a single non-derivative sale of 13,006 Class A shares at $9.7274 per share on 09/15/2025, executed to satisfy tax withholding for vested restricted stock units. The reporting person remains a significant shareholder with 423,255 shares post-transaction. This type of sale is commonly administrative and does not, by itself, signal operational or financial shifts at the issuer.

Corporate Governance Expert

TL;DR: Administrative disposition for tax purposes; disclosure meets Section 16 requirements.

The filing identifies Larry Madden (CFO) as the reporting person and records an issuer-instigated sale to cover withholding taxes tied to equity compensation. The explanation explicitly states the sale was to satisfy tax obligations from RSU vesting. The transaction is transparently reported and appears compliant with Section 16 reporting rules; there is no additional information suggesting governance concerns.

Insider Trade Summary

Net Seller: 13,006 shares ($126,515)

Net Sell 1 txn

Insider MADDEN LARRY

Role Chief Financial Officer

Sold 13,006 shs ($127K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	13,006	$9.7274	$127K

Holdings After Transaction: Class A Common Stock — 423,255 shares (Direct)

Footnotes (1)

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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).

1. Name and Address of Reporting Person^*

MADDEN LARRY

(Last) (First) (Middle)

C/O VIANT TECHNOLOGY INC.

2722 MICHELSON DRIVE, SUITE 100

(Street)

IRVINE CA 92612

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2025

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

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

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

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	09/15/2025		S(1)		13,006	D	$9.7274	423,255	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 were sold in a transaction instituted by the Issuer on the Reporting Person's behalf to cover withholding tax associated with the vesting and settlement of restricted stock units.

Remarks:

	/s/ Larry Madden	09/17/2025
	** 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.

FAQ

What insider transaction did Viant Technology (DSP) report on the Form 4?

The Form 4 reports that CFO Larry Madden sold 13,006 Class A shares on 09/15/2025 at $9.7274 per share.

Why were the shares sold according to the Form 4 for DSP?

The filing states the shares were sold to cover withholding tax associated with the vesting and settlement of restricted stock units.

How many Viant (DSP) shares does the reporting person own after the sale?

After the reported transaction, the reporting person beneficially owned 423,255 Class A shares.

Who filed the Form 4 for Viant Technology (DSP)?

The Form 4 was filed by Larry Madden, who is listed as the company's Chief Financial Officer.

When was the Form 4 signed?

The signature block shows the Form 4 was signed on 09/17/2025.