VANDERHOOK TIMOTHY

PrivateCIK: 1843103
Location

IRVINE, CA

VANDERHOOK TIMOTHY (See Remarks) sold 88.4% of their position (19.10K shares) of VIANT TECHNOLOGY INC. on the open market

Open‑market sale worth $224.9K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales
InsiderVANDERHOOK TIMOTHYCIK 1843103
IssuerVIANT TECHNOLOGY INC.CIK 1828791
DirectorOfficer· See Remarks
Since Feb 2021
-116.60K
Net shares
Net seller
$224.9K
Total sold
3
Open market trades
0B · 3S
7
Total transactions
12.50K acquired · 129.10K disposed
Non-Derivative Transactions6

Class A Common Stock

Indirect
M · Option Exercise

Shares

+12.50K

Price / share

Trade value

% of position

New position
12/16/2025
0.0012.50K

Class B Common Stock

Indirect
D · Disposition

Shares

12.50K

Price / share

Trade value

% of position

0.1%
12/16/2025
9.17M9.16M

Class A Common Stock

Direct
S · Sale

Shares

9.10K

Price / share

$11.70

Trade value

$106.53K

% of position

2.6%
12/17/2025
356.28K347.18K

Class A Common Stock

Indirect
S · Sale

Shares

5K

Price / share

$11.74

Trade value

$58.68K

% of position

40.0%
12/17/2025
12.50K7.50K

Class A Common Stock

Indirect
S · Sale

Shares

5K

Price / share

$11.93

Trade value

$59.64K

% of position

66.7%
12/18/2025
7.50K2.50K

Class A Common Stock

Direct
G · Gift

Shares

85K

Price / share

Trade value

% of position

24.5%
12/18/2025
347.18K262.18K
Total

Net shares

104.10K

Net value

-$224.85K

Derivative Transactions1

Class B Units

Indirect
M · Option Exercise
Converts to

Class A Common Stock

12.50K shares

Shares

12.50K

Strike price

Held after

9.16M

Exercisable

12/16/2025
VANDERHOOK TIMOTHY — Insider Transaction (Form 4) Filed Dec 18, 2025 | Finecho