SEC FORM 4

SEC FORM 4SEC 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

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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^*

Vanderhook Christopher

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/09/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class B Common Stock	06/09/2026		G		52,096	D	$0	0⁽¹⁾	I	By GRAT⁽²⁾
Class B Common Stock	06/09/2026		G		52,096	D	$0	0⁽¹⁾	I	By GRAT⁽³⁾
Class B Common Stock	06/09/2026		G		52,096	D	$0	0⁽¹⁾	I	By GRAT⁽⁴⁾
Class B Common Stock	06/09/2026		G		52,096	D	$0	0⁽¹⁾	I	By GRAT⁽⁵⁾
Class B Common Stock	06/09/2026		A		52,096	A	$0	52,096	I	Hayden Vanderhook Gift Trust
Class B Common Stock	06/09/2026		A		52,096	A	$0	52,096	I	Carter Vanderhook Gift Trust
Class B Common Stock	06/09/2026		A		52,096	A	$0	52,096	I	Clay Vanderhook Gift Trust
Class B Common Stock	06/09/2026		A		52,096	A	$0	52,096	I	Colbie Vanderhook Gift Trust
Class B Common Stock								7,625,390	D⁽¹⁾
Class B Common Stock								9,094,775	I	By Capital V LLC⁽⁶⁾

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Class B Units	⁽⁷⁾	06/09/2026		G			52,096	⁽⁷⁾	⁽⁷⁾	Class A Common Stock	52,096	$0	0⁽¹⁾	I	By GRAT⁽²⁾
Class B Units	⁽⁷⁾	06/09/2026		G			52,096	⁽⁷⁾	⁽⁷⁾	Class A Common Stock	52,096	$0	0⁽¹⁾	I	By GRAT⁽³⁾
Class B Units	⁽⁷⁾	06/09/2026		G			52,096	⁽⁷⁾	⁽⁷⁾	Class A Common Stock	52,096	$0	0⁽¹⁾	I	By GRAT⁽⁴⁾
Class B Units	⁽⁷⁾	06/09/2026		G			52,096	⁽⁷⁾	⁽⁷⁾	Class A Common Stock	52,096	$0	0⁽¹⁾	I	By GRAT⁽⁵⁾
Class B Units	⁽⁷⁾	06/09/2026		A		52,096		⁽⁷⁾	⁽⁷⁾	Class A Common Stock	52,096	$0	52,096	I	Hayden Vanderhook Gift Trust
Class B Units	⁽⁷⁾	06/09/2026		A		52,096		⁽⁷⁾	⁽⁷⁾	Class A Common Stock	52,096	$0	52,096	I	Carter Vanderhook Gift Trust
Class B Units	⁽⁷⁾	06/09/2026		A		52,096		⁽⁷⁾	⁽⁷⁾	Class A Common Stock	52,096	$0	52,096	I	Clay Vanderhook Gift Trust
Class B Units	⁽⁷⁾	06/09/2026		A		52,096		⁽⁷⁾	⁽⁷⁾	Class A Common Stock	52,096	$0	52,096	I	Colbie Vanderhook Gift Trust
Class B Units	⁽⁷⁾							⁽⁷⁾	⁽⁷⁾	Class A Common Stock	7,625,390		7,625,390⁽¹⁾	D
Class B Units	⁽⁷⁾							⁽⁷⁾	⁽⁷⁾	Class A Common Stock	9,094,775		9,094,775	I	By Capital V LLC⁽⁶⁾

Explanation of Responses:

1. In addition to the gift transactions reported herein, reflects annuity payments by the GRATs to the Reporting Person pursuant to the terms of the GRAT, which annuity payments were exempt from reporting pursuant to Rule 16a-13.

2. Securities held by the Hayden Vanderhook 2024 grantor retained annuity trust.

3. Securities held by the Carter Vanderhook 2024 grantor retained annuity trust.

4. Securities held by the Clay Vanderhook 2024 grantor retained annuity trust.

5. Securities held by the Colbie Vanderhook 2024 grantor retained annuity trust.

6. The Reporting Person holds a one-third interest in Capital V LLC and may therefore be deemed to have an indirect pecuniary interest in one-third of Capital V LLC's total holdings.

7. The Class B Units of Viant Technology LLC ("Class B Units") are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A common stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B common stock will be automatically cancelled.

Remarks:

	/s/ Larry Madden, Attorney-in-Fact for Christopher Vanderhook	06/10/2026
	** 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)

Chief Operating Officer Vanderhook Christopher gifted 208,384 units of Class B Common Stock and was granted 208,384 units of Class B Common Stock (SEC Form 4)