Timothy Vanderhook sold $138K of Viant Technology Inc. (DSP) stock

Timothy Vanderhook, CEO and Chairman, 10% of Viant Technology Inc. (DSP), sold 12,500 shares of DSP stock worth $138K, per an SEC Form 4 filed Jul 24, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Jul 21, 2026, 3 days before it was made public.

DSP has moved +7.7% since the trade date, from $11.76 to $12.66 (Sep 21, 2026 close).