Viant Technology DSP Insider Ownership

Updated Oct 10, 2026

In the last 12 months, insiders at Viant Technology made open-market sales of $7.94 million (695.41K shares) and bought no shares on the open market.

• Viant Technology's open-market sales in the past 12 months came from 4 insiders; no insider bought.
• Capital V LLC (10% owner) led open-market sales of Viant Technology stock over the past 12 months with $3.34 million (300K shares), most recently on July 23, 2026.
• The newest open-market trade among Viant Technology insiders came on September 18, 2026, when Larry Madden (Chief Financial Officer) made a sale of 14.6K shares for $176,735.
• Away from the open market, DSP insiders received 527.24K shares in stock awards, acquired 400K shares through option exercises and conversions, gave up 59.3K shares to cover taxes or exercise prices and gave away 293.38K shares as gifts over the last 12 months.
• Per Business Quant data, Viant Technology insiders hold 28.47Mn shares in total based on their latest Form 4 filings, down 0.46% from 28.61Mn shares at the end of Q2 2026 and down 4.24% from 29.73Mn shares at the end of Q3 2025.
• Viant Technology insiders hold 28.27Mn shares directly (99.27% of their total) and 208.38K shares (0.73%) indirectly, through entities such as trusts and partnerships.
• The insider holdings in Viant Technology belong to 8 insiders who have reported on Form 4 within the past two years.
• Viant Technology's three largest insider shareholders, based on their latest Form 4 filings, are Capital V LLC (10% owner, 27.21Mn shares), Timothy Vanderhook (CEO and Chairman, 408.63K shares) and Larry Madden (Chief Financial Officer, 342.71K shares).
• The largest insider, Capital V LLC, holds 95.56% of DSP's insider total.
• Over the past 12 months, 8 insiders reported transactions in Viant Technology stock in 57 Form 4 filings.
• Insider figures for DSP include Form 4 filings through September 18, 2026.