Company profile
Viant Technology Inc. Insider Trading
DSPEvery SEC Form 4 insider trading filing for Viant Technology Inc. (DSP) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Services-Computer Programming, Data Processing, Etc.
- CIK
- 0001828791
- Filings
- 108
- Insiders
- 9
- Last filing
- 2026-09-10
Activity summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $526K across 3 transactions.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Viant Technology Inc. insiders were net sellers in every quarter shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $15.3M.
90 day insight
Over the last 90 days, Viant Technology Inc. insiders bought $0 (8 transactions) and sold $526K (6 transactions).
- Most active insider: Larry Madden with 7 transactions totaling $1.1M.
- Largest single sale: $339K by Larry Madden on Aug 11, 2026.
- 71% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity is mixed — buys and sales are roughly balanced.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 10, 2026 | Christopher Vanderhook | DSP | Disposition | 8,636 | $12.74 | $110K |
| Sep 10, 2026 | Larry Madden | DSP | Tax Withholding | 24,016 | $12.74 | $306K |
| Sep 10, 2026 | Timothy Vanderhook | DSP | Disposition | 8,636 | $12.74 | $110K |
| Aug 11, 2026 | Larry Madden | DSP | Sale10b5 | 26,020 | $13.03 | $339K |
| Aug 11, 2026 | Larry Madden | DSP | Sale10b5 | 1,431 | $13.68 | $20K |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/transactions?ticker=DSP" \
-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Viant Technology Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →