VANDERHOOK CHRISTOPHER (Chief Operating Officer) received a stock award from VIANT TECHNOLOGY INC.

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 4 awards

VANDERHOOK CHRISTOPHER

Filed: 6/10/2026ACC: 0001843104-26-000012

InsiderVANDERHOOK CHRISTOPHERCIK 1843104

→

IssuerVIANT TECHNOLOGY INC.CIK 1828791

DirectorOfficer· Chief Operating Officer

Since Feb 2021

0.00

Net shares

Net seller

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

416.77K acquired · 416.77K disposed

Non-Derivative Transactions8

Class B Common Stock

Indirect

G · Gift

−52.10K

Price / share

—

Trade value

—

% of position

New position

6/9/2026

52.10K→0.00

Class B Common Stock

Indirect

G · Gift

−52.10K

Price / share

—

Trade value

—

% of position

New position

6/9/2026

52.10K→0.00

Class B Common Stock

Indirect

G · Gift

−52.10K

Price / share

—

Trade value

—

% of position

New position

6/9/2026

52.10K→0.00

Class B Common Stock

Indirect

G · Gift

−52.10K

Price / share

—

Trade value

—

% of position

New position

6/9/2026

52.10K→0.00

Class B Common Stock

Indirect

A · Award

+52.10K

Price / share

—

Trade value

—

% of position

New position

6/9/2026

0.00→52.10K

Class B Common Stock

Indirect

A · Award

+52.10K

Price / share

—

Trade value

—

% of position

New position

6/9/2026

0.00→52.10K

Class B Common Stock

Indirect

A · Award

+52.10K

Price / share

—

Trade value

—

% of position

New position

6/9/2026

0.00→52.10K

Class B Common Stock

Indirect

A · Award

+52.10K

Price / share

—

Trade value

—

% of position

New position

6/9/2026

0.00→52.10K

Total

Net shares

+0.00

Net value

$0.00

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class B Common Stock Indirect	6/9/2026	G · Gift	−52.10K	—	—	New position	52.10K	0.00
Class B Common Stock Indirect	6/9/2026	G · Gift	−52.10K	—	—	New position	52.10K	0.00
Class B Common Stock Indirect	6/9/2026	G · Gift	−52.10K	—	—	New position	52.10K	0.00
Class B Common Stock Indirect	6/9/2026	G · Gift	−52.10K	—	—	New position	52.10K	0.00
Class B Common Stock Indirect	6/9/2026	A · Award	+52.10K	—	—	New position	0.00	52.10K
Class B Common Stock Indirect	6/9/2026	A · Award	+52.10K	—	—	New position	0.00	52.10K
Class B Common Stock Indirect	6/9/2026	A · Award	+52.10K	—	—	New position	0.00	52.10K
Class B Common Stock Indirect	6/9/2026	A · Award	+52.10K	—	—	New position	0.00	52.10K
Total			+0.00		$0.00

Derivative Transactions8

Class B Units

Indirect

G · Gift

Converts to

Class A Common Stock

52.10K shares

−52.10K

Strike price

Held after

0.00

Exercisable

—

6/9/2026

Class B Units

Indirect

G · Gift

Converts to

Class A Common Stock

52.10K shares

−52.10K

Strike price

Held after

0.00

Exercisable

—

6/9/2026

Class B Units

Indirect

G · Gift

Converts to

Class A Common Stock

52.10K shares

−52.10K

Strike price

Held after

0.00

Exercisable

—

6/9/2026

Class B Units

Indirect

G · Gift

Converts to

Class A Common Stock

52.10K shares

−52.10K

Strike price

Held after

0.00

Exercisable

—

6/9/2026

Class B Units

Indirect

A · Award

Converts to

Class A Common Stock

52.10K shares

+52.10K

Strike price

Held after

52.10K

Exercisable

—

6/9/2026

Class B Units

Indirect

A · Award

Converts to

Class A Common Stock

52.10K shares

+52.10K

Strike price

Held after

52.10K

Exercisable

—

6/9/2026

Class B Units

Indirect

A · Award

Converts to

Class A Common Stock

52.10K shares

+52.10K

Strike price

Held after

52.10K

Exercisable

—

6/9/2026

Class B Units

Indirect

A · Award

Converts to

Class A Common Stock

52.10K shares

+52.10K

Strike price

Held after

52.10K

Exercisable

—

6/9/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Class B Units Indirect	Class A Common Stock52.10K shares	6/9/2026	G · Gift	−52.10K	—	0.00
Class B Units Indirect	Class A Common Stock52.10K shares	6/9/2026	G · Gift	−52.10K	—	0.00
Class B Units Indirect	Class A Common Stock52.10K shares	6/9/2026	G · Gift	−52.10K	—	0.00
Class B Units Indirect	Class A Common Stock52.10K shares	6/9/2026	G · Gift	−52.10K	—	0.00
Class B Units Indirect	Class A Common Stock52.10K shares	6/9/2026	A · Award	+52.10K	—	52.10K
Class B Units Indirect	Class A Common Stock52.10K shares	6/9/2026	A · Award	+52.10K	—	52.10K
Class B Units Indirect	Class A Common Stock52.10K shares	6/9/2026	A · Award	+52.10K	—	52.10K
Class B Units Indirect	Class A Common Stock52.10K shares	6/9/2026	A · Award	+52.10K	—	52.10K

Non-Derivative Holdings (Post-Transaction)2

Class B Common Stock

Direct

Shares owned7.63M

Class B Common Stock

Indirect

Shares owned9.09M

Total

7.63M direct·9.09M indirect16.72M

Security Title	Shares Owned	Ownership Type
Class B Common Stock	7.63M	Direct
Class B Common Stock	9.09M	Indirect
Total	16.72M	7.63M direct·9.09M indirect

Derivative Holdings (Post-Transaction)2

Class B Units

Indirect

Underlying security

Class A Common Stock

Underlying shares

9.09M

Shares owned

9.09M

Exercise price

Expiration

—

Exercise window

—

Class B Units

Direct

Underlying security

Class A Common Stock

Underlying shares

7.63M

Shares owned

7.63M

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

16.72M

Owned

16.72M

Security	Underlying	Exercise Window	Expiration	Underlying Shares	Shares Owned
Class B Units Indirect	Class A Common Stock	—	—	9.09M	9.09M
Class B Units Direct	Class A Common Stock	—	—	7.63M	7.63M
Total				16.72M	16.72M