STOCK TITAN

Viant Technology (DSP) COO shifts shares via GRAT and family gift trusts

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Viant Technology Inc. director and COO Christopher Vanderhook reported estate-planning transfers involving Class B Common Stock and related Class B Units. Four family gift trusts each received 52,096 shares of Class B Common Stock and 52,096 Class B Units as grant or award acquisitions, matched by bona fide gifts of the same amounts from grantor retained annuity trusts (GRATs). In total, 416,768 shares/units moved via gifts, with no open-market buying or selling. Footnotes state Capital V LLC holds additional interests, with Class B Units exchangeable on a one-for-one basis into Class A Common Stock and the corresponding Class B Common Stock cancelled upon exchange.

Positive

  • None.

Negative

  • None.
Insider Vanderhook Christopher
Role Chief Operating Officer
Type Security Shares Price Value
Gift Class B Units 52,096 $0.00 --
Gift Class B Units 52,096 $0.00 --
Gift Class B Units 52,096 $0.00 --
Gift Class B Units 52,096 $0.00 --
Grant/Award Class B Units 52,096 $0.00 --
Grant/Award Class B Units 52,096 $0.00 --
Grant/Award Class B Units 52,096 $0.00 --
Grant/Award Class B Units 52,096 $0.00 --
Gift Class B Common Stock 52,096 $0.00 --
Gift Class B Common Stock 52,096 $0.00 --
Gift Class B Common Stock 52,096 $0.00 --
Gift Class B Common Stock 52,096 $0.00 --
Grant/Award Class B Common Stock 52,096 $0.00 --
Grant/Award Class B Common Stock 52,096 $0.00 --
Grant/Award Class B Common Stock 52,096 $0.00 --
Grant/Award Class B Common Stock 52,096 $0.00 --
holding Class B Units -- -- --
holding Class B Units -- -- --
holding Class B Common Stock -- -- --
holding Class B Common Stock -- -- --
Holdings After Transaction: Class B Units — 0 shares (Indirect, By GRAT); Class B Common Stock — 0 shares (Indirect, By GRAT); Class B Units — 7,625,390 shares (Direct, null); Class B Common Stock — 7,625,390 shares (Direct, null)
Footnotes (1)
  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. Securities held by the Hayden Vanderhook 2024 grantor retained annuity trust. Securities held by the Carter Vanderhook 2024 grantor retained annuity trust. Securities held by the Clay Vanderhook 2024 grantor retained annuity trust. Securities held by the Colbie Vanderhook 2024 grantor retained annuity trust. 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. 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.
Per-trust grant 52,096 shares Class B Common Stock granted per family gift trust
Total gifts 416,768 shares Aggregate Class B Common Stock and Class B Units moved via gifts
Indirect derivative position 9,094,775 shares Underlying Class A Common Stock via Class B Units, indirect
Direct derivative position 7,625,390 shares Underlying Class A Common Stock via Class B Units, direct
Gift price $0.0000/share Reported price per share for gifts and grants
Acquire transactions 8 transactions Grant/award acquisitions coded A in the Form 4
Gift transactions 8 transactions Bona fide gifts coded G in the Form 4
grantor retained annuity trust financial
"Securities held by the Hayden Vanderhook 2024 grantor retained annuity trust."
A grantor retained annuity trust (GRAT) is an estate-planning tool where the person who creates the trust transfers assets into it but receives fixed cash payments (an annuity) from the trust for a set number of years; whatever remains after that term passes to designated beneficiaries. It matters to investors because it can shift future appreciation of assets out of the creator’s taxable estate—like putting an asset into a timed vending machine that pays you fixed amounts while any extra value that grows inside the machine goes to heirs with reduced gift or estate tax consequences.
Class B Units financial
"The Class B Units of Viant Technology LLC ("Class B Units") are exchangeable, at the holder's option..."
pecuniary interest financial
"may therefore be deemed to have an indirect pecuniary interest in one-third of Capital V LLC's total holdings."
Rule 16a-13 regulatory
"annuity payments by the GRATs to the Reporting Person... were exempt from reporting pursuant to Rule 16a-13."
bona fide gift financial
"transaction_code_description": "Bona fide gift""
A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.
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SEC Form 4
FORM 4UNITED 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*
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)
XDirectorX10% Owner
XOfficer (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)
XForm 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)
CodeVAmount(A) or (D)Price
Class B Common Stock06/09/2026G52,096D$00(1)IBy GRAT(2)
Class B Common Stock06/09/2026G52,096D$00(1)IBy GRAT(3)
Class B Common Stock06/09/2026G52,096D$00(1)IBy GRAT(4)
Class B Common Stock06/09/2026G52,096D$00(1)IBy GRAT(5)
Class B Common Stock06/09/2026A52,096A$052,096IHayden Vanderhook Gift Trust
Class B Common Stock06/09/2026A52,096A$052,096ICarter Vanderhook Gift Trust
Class B Common Stock06/09/2026A52,096A$052,096IClay Vanderhook Gift Trust
Class B Common Stock06/09/2026A52,096A$052,096IColbie Vanderhook Gift Trust
Class B Common Stock7,625,390D(1)
Class B Common Stock9,094,775IBy 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Class B Units(7)06/09/2026G52,096 (7) (7)Class A Common Stock52,096$00(1)IBy GRAT(2)
Class B Units(7)06/09/2026G52,096 (7) (7)Class A Common Stock52,096$00(1)IBy GRAT(3)
Class B Units(7)06/09/2026G52,096 (7) (7)Class A Common Stock52,096$00(1)IBy GRAT(4)
Class B Units(7)06/09/2026G52,096 (7) (7)Class A Common Stock52,096$00(1)IBy GRAT(5)
Class B Units(7)06/09/2026A52,096 (7) (7)Class A Common Stock52,096$052,096IHayden Vanderhook Gift Trust
Class B Units(7)06/09/2026A52,096 (7) (7)Class A Common Stock52,096$052,096ICarter Vanderhook Gift Trust
Class B Units(7)06/09/2026A52,096 (7) (7)Class A Common Stock52,096$052,096IClay Vanderhook Gift Trust
Class B Units(7)06/09/2026A52,096 (7) (7)Class A Common Stock52,096$052,096IColbie Vanderhook Gift Trust
Class B Units(7) (7) (7)Class A Common Stock7,625,3907,625,390(1)D
Class B Units(7) (7) (7)Class A Common Stock9,094,7759,094,775IBy 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 Vanderhook06/10/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transactions did DSP executive Christopher Vanderhook report?

Christopher Vanderhook reported non-market estate-planning transfers. Four family gift trusts each received 52,096 shares of Class B Common Stock and 52,096 Class B Units, matched by bona fide gifts from related GRATs, totaling 416,768 shares and units moved without open-market trades.

Were Viant Technology (DSP) insider transactions open-market buys or sells?

The filing shows no open-market purchases or sales. Activity consists of grant or award acquisitions and bona fide gifts between GRATs and family gift trusts, all at a reported price of $0.0000 per share, indicating non-cash, estate-planning related movements rather than trading.

How many Viant Technology shares were involved in Vanderhook’s reported gifts?

The transactions involved 416,768 shares and units overall. Four separate grants of 52,096 Class B Common Stock and 52,096 Class B Units to family gift trusts were paired with equal-size bona fide gifts from GRATs, keeping net holdings unchanged while reallocating ownership among related entities.

What are Viant Technology Class B Units reported in the Form 4?

The Class B Units are interests in Viant Technology LLC. Footnotes state each Class B Unit is exchangeable, at the holder’s option, on a one-for-one basis into a share of Class A Common Stock, and the corresponding Class B Common Stock is automatically cancelled upon such exchange.

Does Christopher Vanderhook retain significant Viant derivative interests after these transactions?

Yes. Derivative holdings include Class B Units referencing 9,094,775 underlying Class A Common Stock shares indirectly and 7,625,390 underlying shares directly. These derivative positions remain outstanding after the estate-planning transfers, indicating substantial ongoing exposure tied to Viant’s Class A equity.