Christopher Vanderhook, Chief Operating Officer of Viant Technology Inc. ($DSP), sold common shares on the open market 12 times over the last 365 days, totaling about $721 thousand. His most recent sale occurred on February 19, 2026. These sales rank 5,665th among 11,678 individual insiders in our database, where the average sale amount is $8.6 million across about 6.4 transactions per insider. Vanderhook made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 19, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 2920 | $11.42 | 0.0000 | 20,736,000 | 100.00% | 0.01% |
| March 17, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class B Common Stock | 12500 | $0.00 | 9,119,775.0000 | 20,736,000 | 0.14% | 0.06% |
| March 18, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 5000 | $12.00 | 2,920.0000 | 20,736,000 | 63.13% | 0.02% |
| March 17, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 5000 | $11.80 | 7,920.0000 | 20,736,000 | 38.70% | 0.02% |
| March 17, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class B Units | 12500 | $0.00 | 9,119,775.0000 | 20,736,000 | 0.14% | 0.06% |
| March 17, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class A Common Stock | 12500 | $0.00 | 12,920.0000 | 20,736,000 | 2976.19% | 0.06% |
| March 10, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class A Common Stock | 44177 | $10.50 | 303,425.0000 | 20,736,000 | 12.71% | 0.21% |
| Feb. 17, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 4079 | $9.26 | 8,421.0000 | 20,736,000 | 32.63% | 0.02% |
| Feb. 17, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class B Common Stock | 12500 | $0.00 | 9,132,275.0000 | 20,736,000 | 0.14% | 0.06% |
| Feb. 17, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class A Common Stock | 12500 | $0.00 | 12,500.0000 | 20,736,000 | 9999.99% | 0.06% |
| Feb. 17, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class B Units | 12500 | $0.00 | 9,132,275.0000 | 20,736,000 | 0.14% | 0.06% |
| Feb. 19, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 3279 | $9.17 | 420.0000 | 20,736,000 | 88.65% | 0.02% |
| Feb. 18, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 4722 | $9.19 | 3,699.0000 | 20,736,000 | 56.07% | 0.02% |
| Jan. 20, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class A Common Stock | 12500 | $0.00 | 12,500.0000 | 20,736,000 | 9999.99% | 0.06% |
| Jan. 20, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class B Units | 12500 | $0.00 | 9,144,775.0000 | 20,736,000 | 0.14% | 0.06% |
| Jan. 22, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 2574 | $12.87 | 0.0000 | 20,736,000 | 100.00% | 0.01% |
| Jan. 21, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 4926 | $12.24 | 2,574.0000 | 20,736,000 | 65.68% | 0.02% |
| Jan. 20, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 5000 | $11.94 | 7,500.0000 | 20,736,000 | 40.00% | 0.02% |
| Jan. 20, 2026 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class B Common Stock | 12500 | $0.00 | 9,144,775.0000 | 20,736,000 | 0.14% | 0.06% |
| Dec. 19, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 2500 | $11.79 | 0.0000 | 20,736,000 | 100.00% | 0.01% |
| Dec. 17, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 5000 | $11.74 | 354,682.0000 | 20,736,000 | 1.39% | 0.02% |
| Dec. 16, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class A Common Stock | 12500 | $0.00 | 359,682.0000 | 20,736,000 | 3.60% | 0.06% |
| Dec. 16, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class B Common Stock | 12500 | $0.00 | 9,157,275.0000 | 20,736,000 | 0.14% | 0.06% |
| Dec. 17, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 9102 | $11.70 | 349,682.0000 | 20,736,000 | 2.54% | 0.04% |
| Dec. 18, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 5000 | $11.93 | 349,682.0000 | 20,736,000 | 1.41% | 0.02% |
| Dec. 16, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class B Units | 12500 | $0.00 | 9,157,275.0000 | 20,736,000 | 0.14% | 0.06% |
| Sept. 16, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class B Units | 313926 | $0.00 | 17,003,549.0000 | 46,754,000 | 1.81% | 0.67% |
| Sept. 16, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class B Common Stock | 313926 | $0.00 | 17,003,549.0000 | 46,754,000 | 1.81% | 0.67% |
| Sept. 17, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class A Common Stock | 313926 | $9.56 | 356,284.0000 | 46,754,000 | 46.84% | 0.67% |
| Sept. 16, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class A Common Stock | 313926 | $0.00 | 670,210.0000 | 46,754,000 | 88.11% | 0.67% |
| Sept. 15, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 8782 | $9.73 | 356,284.0000 | 46,754,000 | 2.41% | 0.02% |
| June 13, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | S | Class A Common Stock | 8960 | $13.08 | 365,076.0000 | 46,754,000 | 2.40% | 0.02% |
| March 10, 2025 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class A Common Stock | 92204 | $13.32 | 374,036.0000 | 46,754,000 | 19.78% | 0.20% |
| Dec. 19, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Class A Common Stock | 203527 | $4.44 | 669,767.0000 | 19,993,000 | 43.65% | 1.02% |
| Dec. 18, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | G | Class A Common Stock | 31556 | $0.00 | 466,240.0000 | 19,993,000 | 6.34% | 0.16% |
| Dec. 19, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | M | Non-qualified Stock Option (Right to Buy) | 203527 | $0.00 | 178,105.0000 | 19,993,000 | 53.33% | 1.02% |
| Dec. 19, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class A Common Stock | 156412 | $19.18 | 466,240.0000 | 19,993,000 | 25.12% | 0.78% |
| Dec. 19, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | F | Class A Common Stock | 47115 | $19.18 | 622,652.0000 | 19,993,000 | 7.03% | 0.24% |
| Dec. 10, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class A Common Stock | 8636 | $21.37 | 497,796.0000 | 19,993,000 | 1.71% | 0.04% |
| Sept. 10, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class A Common Stock | 8636 | $10.07 | 506,432.0000 | 47,032,000 | 1.68% | 0.02% |
| June 10, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class A Common Stock | 8529 | $9.23 | 515,068.0000 | 47,032,000 | 1.63% | 0.02% |
| March 15, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | A | Class A Common Stock | 194384 | $0.00 | 523,597.0000 | 47,032,000 | 59.05% | 0.41% |
| March 15, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | A | Non-qualified Stock Option (Right to Buy) | 96363 | $0.00 | 96,363.0000 | 47,032,000 | 9999.99% | 0.20% |
| March 10, 2024 | Viant Technology Inc. | $DSP | Vanderhook Christopher | Chief Operating Officer | D | Class A Common Stock | 82534 | $10.13 | 329,213.0000 | 47,032,000 | 20.04% | 0.18% |