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Tim Vanderhook owns 13.95% of Viant Technology

9,270,019 shares as of the September 10, 2026 filing, worth $117M at the latest close.

DSP · $840M market cap · Founder-led
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Free.
The stake
13.95%
worth $117M at the latest close
Stake rank
#399
by dollar value of the stake
Last sale
88 days ago
Jul 23, 2026
Last buy
None
no purchases since 2021

Tim Vanderhook owns 13.95% of Viant Technology Inc.: 9,270,019 of 66,474,838 shares, worth about $117M at the 2026-10-16 close. The stake has moved from 29.66% in 2021 to 13.95% on 2026-09-10, across 13 sales and 0 purchases that moved it since 2016. The last trade that moved it was a planned sale of $137,644 on 2026-07-23.

How the stake is held

each class as its filings last stated it
SHARES
OF THE STAKE
CLASS B · stated Jul 21, 2026 · Form 4 ↗
9,069,775
97.8%
HELD INDIRECTLY · By Capital V LLC
9,069,775
97.8%
CLASS A · stated Sep 10, 2026 · Form 4 ↗
200,244
2.2%
HELD DIRECTLY
200,244
2.2%
THE STAKE
9,270,019
13.95%

Ownership is held through paired Class B Common Stock shares, one per unit of the operating partnership, exchangeable into the public stock and counted here one for one; the cover page counts them too.