SEC Form 4 · accession 0001843104-26-000012

Viant Technology Inc. · DSP

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Chief Operating Officer · Director · 10% Owner

Period of report

Jun 9, 2026

Accepted (ET)

Jun 10, 2026 · 7:59 pm EDT

Rule 10b5-1 plan

box not checked

Issuer CIK

0001828791

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Class B Common Stock^F1,F2	Jun 9, 2026	G	52,096	$0.00	D	0	I	By GRAT
Class B Common Stock^F1,F3	Jun 9, 2026	G	52,096	$0.00	D	0	I	By GRAT
Class B Common Stock^F1,F4	Jun 9, 2026	G	52,096	$0.00	D	0	I	By GRAT
Class B Common Stock^F1,F5	Jun 9, 2026	G	52,096	$0.00	D	0	I	By GRAT
Class B Common Stock	Jun 9, 2026	A	52,096	$0.00	A	52,096	I	Hayden Vanderhook Gift Trust
Class B Common Stock	Jun 9, 2026	A	52,096	$0.00	A	52,096	I	Carter Vanderhook Gift Trust
Class B Common Stock	Jun 9, 2026	A	52,096	$0.00	A	52,096	I	Clay Vanderhook Gift Trust
Class B Common Stock	Jun 9, 2026	A	52,096	$0.00	A	52,096	I	Colbie Vanderhook Gift Trust
Class B Common Stock^F1	holding	—	—		—	7,625,390	D
Class B Common Stock^F6	holding	—	—		—	9,094,775	I	By Capital V LLC

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Class B Units^F1,F2,F7	—	Jun 9, 2026	G	52,096	D	—	—	Class A Common Stock	52,096	0	I
Class B Units^F1,F3,F7	—	Jun 9, 2026	G	52,096	D	—	—	Class A Common Stock	52,096	0	I
Class B Units^F1,F4,F7	—	Jun 9, 2026	G	52,096	D	—	—	Class A Common Stock	52,096	0	I
Class B Units^F1,F5,F7	—	Jun 9, 2026	G	52,096	D	—	—	Class A Common Stock	52,096	0	I
Class B Units^F7	—	Jun 9, 2026	A	52,096	A	—	—	Class A Common Stock	52,096	52,096	I
Class B Units^F7	—	Jun 9, 2026	A	52,096	A	—	—	Class A Common Stock	52,096	52,096	I
Class B Units^F7	—	Jun 9, 2026	A	52,096	A	—	—	Class A Common Stock	52,096	52,096	I
Class B Units^F7	—	Jun 9, 2026	A	52,096	A	—	—	Class A Common Stock	52,096	52,096	I
Class B Units^F1,F7	—	holding	—	—	—	—	—	Class A Common Stock	7,625,390	7,625,390	D
Class B Units^F6,F7	—	holding	—	—	—	—	—	Class A Common Stock	9,094,775	9,094,775	I

F1In 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.
F2Securities held by the Hayden Vanderhook 2024 grantor retained annuity trust.
F3Securities held by the Carter Vanderhook 2024 grantor retained annuity trust.
F4Securities held by the Clay Vanderhook 2024 grantor retained annuity trust.
F5Securities held by the Colbie Vanderhook 2024 grantor retained annuity trust.
F6The 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.
F7The 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.