Christopher Vanderhook, Chief Operating Officer at Viant Technology Inc. (DSP), sold 28,204 shares at $11.70 ($331K) on 2025-12-17, disclosed to the SEC on 2025-12-18.
Scheduled sale ($331k) by Chief Operating Officer under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $11.70 | 9,102 | $106K | 32.1% |
| 2 | $11.70 | 9,102 | $106K | 32.1% |
| 3 | $11.74 | 5,000 | $59K | 17.7% |
| 4 | $11.93 | 5,000 | $60K | 18.0% |
| Total | $11.75 avg | 28,204 | $331K | 100% |
| Filing → |
| DSP | SELL | 2026-06-15 | $101K | — | Filing → |
| DSP | SELL | 2026-05-21 | $134K | — | Filing → |
| DSP | SELL | 2026-04-22 | $137K | — | Filing → |