Christopher Vanderhook

CIK: 0001843104

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)28 (43.1%)

Position reduction

Option Exercises (M)10 (15.4%)

Derivative conversions

Awards (A)5 (7.7%)

Compensation grants

Other (G, F, J, C, D, …)22 (33.8%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

DSP

Viant Technology Inc.

DirectorOfficer10% Owner

Discretionary Trading P&L

Holdings

Transaction History (65 total)

DSP
Viant Technology Inc.
Sep 10, 2026
Disposition(D)
Direct
8.6K shares at avg. $12.74$110K
DSP
Viant Technology Inc.
Jul 23, 2026
Sale(S)
Indirect
4.3K shares at avg. $10.47$45K
DSP
Viant Technology Inc.
Jul 22, 2026
Sale(S)
Indirect
5K shares at avg. $11.03$55K
DSP
Viant Technology Inc.
Jul 21, 2026
Award(A)
Class B Units
Indirect
12.5K shares-
DSP
Viant Technology Inc.
Jul 21, 2026
Sale(S)
Indirect
3.2K shares at avg. $11.70$37K
DSP
Viant Technology Inc.
Jul 21, 2026
Exercise(M)
Indirect
12.5K shares-
DSP
Viant Technology Inc.
Jul 21, 2026
Disposition(D)
Indirect
12.5K shares-
DSP
Viant Technology Inc.
Jun 18, 2026
Sale(S)
Indirect
2.5K shares at avg. $10.96$27K
DSP
Viant Technology Inc.
Jun 17, 2026
Sale(S)
Indirect
5K shares at avg. $11.09$55K
DSP
Viant Technology Inc.
Jun 16, 2026
Exercise(M)
Indirect
12.5K shares-
DSP
Viant Technology Inc.
Jun 16, 2026
Disposition(D)
Indirect
12.5K shares-
DSP
Viant Technology Inc.
Jun 16, 2026
Sale(S)
Indirect
5K shares at avg. $11.17$56K
DSP
Viant Technology Inc.
Jun 15, 2026
Sale(S)
Direct
9.1K shares at avg. $11.10$101K
DSP
Viant Technology Inc.
Jun 9, 2026
Award(A)
Indirect
52.1K shares-
DSP
Viant Technology Inc.
Jun 9, 2026
Award(A)
Indirect
52.1K shares-
DSP
Viant Technology Inc.
Jun 9, 2026
Award(A)
Indirect
52.1K shares-
DSP
Viant Technology Inc.
Jun 9, 2026
Award(A)
Indirect
52.1K shares-
DSP
Viant Technology Inc.
Jun 9, 2026
Gift(G)
Indirect
52.1K shares-
DSP
Viant Technology Inc.
Jun 9, 2026
Gift(G)
Indirect
52.1K shares-
DSP
Viant Technology Inc.
Jun 9, 2026
Gift(G)
Indirect
52.1K shares-
DSP
Viant Technology Inc.
Jun 9, 2026
Gift(G)
Indirect
52.1K shares-
DSP
Viant Technology Inc.
May 21, 2026
Sale(S)
Indirect
2.5K shares at avg. $10.79$27K
DSP
Viant Technology Inc.
May 20, 2026
Sale(S)
Indirect
5K shares at avg. $10.60$53K
DSP
Viant Technology Inc.
May 19, 2026
Exercise(M)
Indirect
12.5K shares-
DSP
Viant Technology Inc.
May 19, 2026
Disposition(D)
Indirect
12.5K shares-

		Type	Shares	Price		Ownership
Sep 10, 2026	DSP Viant Technology Inc.	Disposition(D)	8,636	$12.74	$110,023	Direct
Jul 23, 2026	DSP Viant Technology Inc.	Sale(S)	4,304	$10.47	$45,065	Indirect
Jul 22, 2026	DSP Viant Technology Inc.	Sale(S)	5,000	$11.03	$55,173	Indirect
Jul 21, 2026	DSP Viant Technology Inc.	Award(A) Class B Units	12,500	-	-	Indirect
Jul 21, 2026	DSP Viant Technology Inc.	Sale(S)	3,196	$11.70	$37,407	Indirect
Jul 21, 2026	DSP Viant Technology Inc.	Exercise(M)	12,500	-	$0	Indirect
Jul 21, 2026	DSP Viant Technology Inc.	Disposition(D)	12,500	-	$0	Indirect
Jun 18, 2026	DSP Viant Technology Inc.	Sale(S)	2,500	$10.96	$27,412	Indirect
Jun 17, 2026	DSP Viant Technology Inc.	Sale(S)	5,000	$11.09	$55,442	Indirect
Jun 16, 2026	DSP Viant Technology Inc.	Exercise(M)	12,500	-	$0	Indirect
Jun 16, 2026	DSP Viant Technology Inc.	Disposition(D)	12,500	-	$0	Indirect
Jun 16, 2026	DSP Viant Technology Inc.	Sale(S)	5,000	$11.17	$55,857	Indirect
Jun 15, 2026	DSP Viant Technology Inc.	Sale(S)	9,125	$11.10	$101,288	Direct
Jun 9, 2026	DSP Viant Technology Inc.	Award(A)	52,096	-	$0	Indirect
Jun 9, 2026	DSP Viant Technology Inc.	Award(A)	52,096	-	$0	Indirect
Jun 9, 2026	DSP Viant Technology Inc.	Award(A)	52,096	-	$0	Indirect
Jun 9, 2026	DSP Viant Technology Inc.	Award(A)	52,096	-	$0	Indirect
Jun 9, 2026	DSP Viant Technology Inc.	Gift(G)	52,096	-	$0	Indirect
Jun 9, 2026	DSP Viant Technology Inc.	Gift(G)	52,096	-	$0	Indirect
Jun 9, 2026	DSP Viant Technology Inc.	Gift(G)	52,096	-	$0	Indirect
Jun 9, 2026	DSP Viant Technology Inc.	Gift(G)	52,096	-	$0	Indirect
May 21, 2026	DSP Viant Technology Inc.	Sale(S)	2,500	$10.79	$26,971	Indirect
May 20, 2026	DSP Viant Technology Inc.	Sale(S)	5,000	$10.60	$52,978	Indirect
May 19, 2026	DSP Viant Technology Inc.	Exercise(M)	12,500	-	$0	Indirect
May 19, 2026	DSP Viant Technology Inc.	Disposition(D)	12,500	-	$0	Indirect

1-25 of 65 transactions

About Vanderhook Christopher

Vanderhook Christopher (SEC CIK 0001843104) files insider reports with the SEC as Chief Operating Officer of Viant Technology Inc. (DSP).

Signal8 holds 19 ownership filings by Vanderhook Christopher, all Form 4s, filed between Sep 12, 2024 and Sep 14, 2026. Those filings report 65 transactions, from Sep 10, 2024 to Sep 10, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Vanderhook Christopher's filings is in IRVINE, CA.

Recent filings by Vanderhook Christopher

Sep 10, 2026: Disposition to issuer transaction of DSP shares (Form 4, code D).
Jul 23, 2026: Open-market sale of DSP shares (Form 4, code S).
Jul 22, 2026: Open-market sale of DSP shares (Form 4, code S).
Jul 21, 2026: Grant or award of DSP derivative securities (Form 4, code A).
Jul 21, 2026: Open-market sale of DSP shares (Form 4, code S).

Other insiders filing for Viant Technology Inc. (DSP)

MADDEN LARRY, Chief Financial Officer
Vanderhook Timothy, CEO and Chairman
Abrahams Craig Justin, Director
Capital V LLC, 10% Owner
Yang Vivian, Director
Wilson Brett, Director

How to read Form 4 transaction codes