Key facts
- This page summarizes Timothy Vanderhook's Form 4 filing for Viant Technology Inc. (DSP).
- 16 reported transactions and 10 derivative rows are listed below.
- Accepted by SEC: 10 Jun 2026, 20:01.
Timothy Vanderhook - 09 Jun 2026 Form 4 Insider Report for Viant Technology Inc. (DSP)
- Reporting relationship
- CEO and Chairman, Director, 10%+ Owner
- Issuer ticker
- DSP
- Reported as of
- 09 Jun 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 10 Jun 2026, 20:01:01 UTC
- Prior SEC filing
- 21 May 2026
- Next SEC filing
- 15 Jun 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Larry Madden, Attorney-in-Fact for Timothy Vanderhook
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Timothy Vanderhook filed Form 4 for Viant Technology Inc. (DSP) on 10 Jun 2026.
Change
- Previous filing in this sequence was filed on 21 May 2026.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001843103
Primary reporting owner
Vanderhook Timothy
- Relationship
- CEO and Chairman, Director, 10%+ Owner
- Address
- C/O VIANT TECHNOLOGY INC., 2722 MICHELSON DRIVE, SUITE 100, IRVINE
- Signature
- /s/ Larry Madden, Attorney-in-Fact for Timothy Vanderhook
- Signature date
- 10 Jun 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
DSP
transaction
Class B Common Stock
Gift
- Transaction value
- Shares
- -52,096
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 09 Jun 2026
- Ownership
- By GRAT
- Footnotes
- F1, F2
DSP
transaction
Class B Common Stock
Gift
- Transaction value
- Shares
- -52,096
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 09 Jun 2026
- Ownership
- By GRAT
- Footnotes
- F1, F3
DSP
transaction
Class B Common Stock
Gift
- Transaction value
- Shares
- -52,096
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 09 Jun 2026
- Ownership
- By GRAT
- Footnotes
- F1, F4
DSP
transaction
Class B Common Stock
Gift
- Transaction value
- Shares
- -52,096
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 09 Jun 2026
- Ownership
- By GRAT
- Footnotes
- F1, F5
DSP
transaction
Class B Common Stock
Award
- Transaction value
- Shares
- +52,096
- Change %
- Price
- $0.000000*
- Shares after
- 52,096
- Date
- 09 Jun 2026
- Ownership
- Eve Vanderhook Gift Trust
DSP
transaction
Class B Common Stock
Award
- Transaction value
- Shares
- +52,096
- Change %
- Price
- $0.000000*
- Shares after
- 52,096
- Date
- 09 Jun 2026
- Ownership
- Gray Vanderhook Gift Trust
DSP
transaction
Class B Common Stock
Award
- Transaction value
- Shares
- +52,096
- Change %
- Price
- $0.000000*
- Shares after
- 52,096
- Date
- 09 Jun 2026
- Ownership
- Kingston Vanderhook Gift Trust
DSP
transaction
Class B Common Stock
Award
- Transaction value
- Shares
- +52,096
- Change %
- Price
- $0.000000*
- Shares after
- 52,096
- Date
- 09 Jun 2026
- Ownership
- Stella Vanderhook Gift Trust
DSP
holding
Class B Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 7,625,390
- Date
- 09 Jun 2026
- Ownership
- Direct
- Footnotes
- F1
DSP
holding
Class B Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 9,094,775
- Date
- 09 Jun 2026
- Ownership
- By Capital V LLC
- Footnotes
- F6
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
DSP
transaction
Derivative
Class B Units
Gift
- Transaction value
- Shares
- -52,096
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 09 Jun 2026
- Ownership
- By GRAT
- Underlying class
- Class A Common Stock
- Underlying amount
- 52,096
- Exercise price
- Footnotes
- F1, F2, F7
DSP
transaction
Derivative
Class B Units
Gift
- Transaction value
- Shares
- -52,096
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 09 Jun 2026
- Ownership
- By GRAT
- Underlying class
- Class A Common Stock
- Underlying amount
- 52,096
- Exercise price
- Footnotes
- F1, F3, F7
DSP
transaction
Derivative
Class B Units
Gift
- Transaction value
- Shares
- -52,096
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 09 Jun 2026
- Ownership
- By GRAT
- Underlying class
- Class A Common Stock
- Underlying amount
- 52,096
- Exercise price
- Footnotes
- F1, F4, F7
DSP
transaction
Derivative
Class B Units
Gift
- Transaction value
- Shares
- -52,096
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 09 Jun 2026
- Ownership
- By GRAT
- Underlying class
- Class A Common Stock
- Underlying amount
- 52,096
- Exercise price
- Footnotes
- F1, F5, F7
DSP
transaction
Derivative
Class B Units
Award
- Transaction value
- Shares
- +52,096
- Change %
- Price
- $0.000000*
- Shares after
- 52,096
- Date
- 09 Jun 2026
- Ownership
- Eve Vanderhook Gift Trust
- Underlying class
- Class A Common Stock
- Underlying amount
- 52,096
- Exercise price
- Footnotes
- F7
DSP
transaction
Derivative
Class B Units
Award
- Transaction value
- Shares
- +52,096
- Change %
- Price
- $0.000000*
- Shares after
- 52,096
- Date
- 09 Jun 2026
- Ownership
- Gray Vanderhook Gift Trust
- Underlying class
- Class A Common Stock
- Underlying amount
- 52,096
- Exercise price
- Footnotes
- F7
DSP
transaction
Derivative
Class B Units
Award
- Transaction value
- Shares
- +52,096
- Change %
- Price
- $0.000000*
- Shares after
- 52,096
- Date
- 09 Jun 2026
- Ownership
- Kingston Vanderhook Gift Trust
- Underlying class
- Class A Common Stock
- Underlying amount
- 52,096
- Exercise price
- Footnotes
- F7
DSP
transaction
Derivative
Class B Units
Award
- Transaction value
- Shares
- +52,096
- Change %
- Price
- $0.000000*
- Shares after
- 52,096
- Date
- 09 Jun 2026
- Ownership
- Stella Vanderhook Gift Trust
- Underlying class
- Class A Common Stock
- Underlying amount
- 52,096
- Exercise price
- Footnotes
- F7
DSP
holding
Derivative
Class B Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 7,625,390
- Date
- 09 Jun 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 7,625,390
- Exercise price
- Footnotes
- F1, F7
DSP
holding
Derivative
Class B Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 9,094,775
- Date
- 09 Jun 2026
- Ownership
- By Capital V LLC
- Underlying class
- Class A Common Stock
- Underlying amount
- 9,094,775
- Exercise price
- Footnotes
- F6, F7
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 7 footnotes
Footnote F1
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.
Footnote F2
Securities held by the Eve Vanderhook 2024 grantor retained annuity trust.
Footnote F3
Securities held by the Gray Vanderhook 2024 grantor retained annuity trust.
Footnote F4
Securities held by the Kingston Vanderhook 2024 grantor retained annuity trust.
Footnote F5
Securities held by the Stella Vanderhook 2024 grantor retained annuity trust.
Footnote F6
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.
Footnote F7
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.