8 insiders reported 203 Form 4 transactions for Viant Technology Inc. (DSP) over the past 18 months (most recent 2026-09-18). Recent activity: MADDEN LARRY (Chief Financial Officer) Sell 17,042 shares, MADDEN LARRY (Chief Financial Officer) Sell 14,602 shares, MADDEN LARRY (Chief Financial Officer) Sell 24,016 shares, Vanderhook Timothy (CEO and Chairman) Sell 8,636 shares, Vanderhook Christopher (Chief Operating Officer) Sell 8,636 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-18 | MADDEN LARRY | Chief Financial Officer | Sell | 17,042 | $213,284 |
| 2026-09-18 | MADDEN LARRY | Chief Financial Officer | Sell | 14,602 | $176,735 |
| 2026-09-14 | MADDEN LARRY | Chief Financial Officer | Sell | 24,016 | $305,964 |
| 2026-09-14 | Vanderhook Timothy | CEO and Chairman | Sell | 8,636 | $110,023 |
| 2026-09-14 | Vanderhook Christopher | Chief Operating Officer | Sell | 8,636 | $110,023 |
| 2026-08-13 | MADDEN LARRY | Chief Financial Officer | Sell | 1,431 | $19,570 |
| 2026-08-13 | MADDEN LARRY | Chief Financial Officer | Sell | 26,020 | $338,944 |
| 2026-08-12 | Abrahams Craig Justin | Director | Buy | 28,389 | $0 |
| 2026-08-12 | Abrahams Craig Justin | Director | Buy | 10,720 | $0 |
| 2026-07-27 | MADDEN LARRY | Chief Financial Officer | Sell | 2,814 | $30,070 |
| 2026-07-23 | Vanderhook Timothy | CEO and Chairman | Buy | 12,500 | $0 |
| 2026-07-23 | Vanderhook Christopher | Chief Operating Officer | Buy | 12,500 | $0 |
| 2026-07-23 | Capital V LLC | 10% Owner | Sell | 12,912 | $135,194 |
| 2026-07-23 | Vanderhook Timothy | CEO and Chairman | Sell | 12,500 | $0 |
| 2026-07-23 | Vanderhook Christopher | Chief Operating Officer | Sell | 12,500 | $0 |
| 2026-07-23 | Capital V LLC | 10% Owner | Sell | 37,500 | $0 |
| 2026-07-23 | Vanderhook Timothy | CEO and Chairman | Sell | 3,196 | $37,407 |
| 2026-07-23 | Vanderhook Christopher | Chief Operating Officer | Sell | 3,196 | $37,407 |
| 2026-07-23 | Capital V LLC | 10% Owner | Sell | 9,588 | $112,220 |
| 2026-07-23 | Vanderhook Timothy | CEO and Chairman | Sell | 5,000 | $55,173 |
| 2026-07-23 | Vanderhook Christopher | Chief Operating Officer | Sell | 5,000 | $55,173 |
| 2026-07-23 | Capital V LLC | 10% Owner | Sell | 15,000 | $165,519 |
| 2026-07-23 | Vanderhook Timothy | CEO and Chairman | Sell | 4,304 | $45,065 |
| 2026-07-23 | Vanderhook Christopher | Chief Operating Officer | Sell | 4,304 | $45,065 |
| 2026-07-23 | Capital V LLC | 10% Owner | Buy | 37,500 | $0 |
Source: SEC Form 4 filings · as of 2026-09-18