Over the 90-day window ending January 10, 2026, Viant Technology's three dominant insider ownership positions are held by Chief Financial Officer Larry Madden (409.78K shares), Chief Operating Officer Christopher Vanderhook (347.18K shares), Ceo And Chairman Timothy Vanderhook (262.18K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Larry Madden | Chief Financial Officer | 409,778 | 18 Dec, 2025 |
| Christopher Vanderhook | Chief Operating Officer | 347,182 | 18 Dec, 2025 |
| Timothy Vanderhook | Ceo And Chairman | 262,182 | 18 Dec, 2025 |
| Vivian Yang | 93,913 | 09 Jun, 2025 | |
| Elizabeth Goodman Williams | 87,137 | 04 Jun, 2024 | |
| Brett Wilson | 35,919 | 09 Jun, 2025 | |
| Max O Valdes | 21,591 | 09 Jun, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 19 Dec, 2025 | Timothy Vanderhook | Class A Common Stock | D | 2,500 | $11.79 | 0 | I | S |
| 19 Dec, 2025 | Christopher Vanderhook | Class A Common Stock | D | 2,500 | $11.79 | 0 | I | S |
| 19 Dec, 2025 | V Llc Capital | Class A Common Stock | D | 7,500 | $11.79 | 0 | D | S |
| 18 Dec, 2025 | Timothy Vanderhook | Class A Common Stock | D | 5,000 | $11.93 | 2,500 | I | S |
| 18 Dec, 2025 | Timothy Vanderhook | Class A Common Stock | D | 85,000 | $0.00 | 262,182 | D | G |
| 18 Dec, 2025 | Christopher Vanderhook | Class A Common Stock | D | 5,000 | $11.93 | 2,500 | I | S |
| 18 Dec, 2025 | V Llc Capital | Class A Common Stock | D | 15,000 | $11.93 | 7,500 | D | S |
| 17 Dec, 2025 | Larry Madden | Class A Common Stock | D | 13,477 | $11.70 | 409,778 | D | S |
| 17 Dec, 2025 | Timothy Vanderhook | Class A Common Stock | D | 5,000 | $11.74 | 7,500 | I | S |
| 17 Dec, 2025 | Timothy Vanderhook | Class A Common Stock | D | 9,102 | $11.70 | 347,182 | D | S |
| 17 Dec, 2025 | Christopher Vanderhook | Class A Common Stock | D | 9,102 | $11.70 | 347,182 | D | S |
| 17 Dec, 2025 | Christopher Vanderhook | Class A Common Stock | D | 5,000 | $11.74 | 7,500 | I | S |
| 17 Dec, 2025 | V Llc Capital | Class A Common Stock | D | 15,000 | $11.74 | 22,500 | D | S |
| 16 Dec, 2025 | Timothy Vanderhook | Class A Common Stock | A | 12,500 | $0.00 | 12,500 | I | M |
| 16 Dec, 2025 | Timothy Vanderhook | Class B Common Stock | D | 12,500 | $0.00 | 9,157,275 | I | D |
| 16 Dec, 2025 | Christopher Vanderhook | Class B Common Stock | D | 12,500 | $0.00 | 9,157,275 | I | D |
| 16 Dec, 2025 | Christopher Vanderhook | Class A Common Stock | A | 12,500 | $0.00 | 12,500 | I | M |
| 16 Dec, 2025 | V Llc Capital | Class B Common Stock | D | 37,500 | $0.00 | 27,471,826 | D | D |
| 16 Dec, 2025 | V Llc Capital | Class A Common Stock | A | 37,500 | $0.00 | 37,500 | D | M |
| 17 Sep, 2025 | Timothy Vanderhook | Class A Common Stock | D | 313,926 | $9.56 | 0 | I | D |