Viant Technology Inc
Ownership
Ownership Structure
Who owns Viant Technology Inc (DSP)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 95.7% of the shares are freely tradable; institutional investors hold 54.7%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Punch & Associates Inv Mgmt Inc | 7.09 | 1,501,487 | +11.5 | 06/30/2026 |
| BlackRock Inc | 6.02 | 1,274,688 | +15.4 | 06/30/2026 |
| Royce & Associates, LP | 5.06 | 1,071,223 | +6.3 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.99 | 845,968 | +25.9 | 06/30/2026 |
| Potomac Capital Management, Inc. | 2.54 | 538,000 | +1.0 | 06/30/2026 |
| Geode Capital Management, LLC | 2.28 | 482,221 | +27.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 2.81 | 595,491 | +0.0 | 09/30/2026 |
| iShares Russell 2000 ETF | 2.26 | 478,050 | -1.1 | 09/30/2026 |
| Royce Small-Cap Opportunity Invmt | 2.22 | 470,959 | -6.6 | 09/30/2026 |
| FTGF RY US SmCp Opp A USD Dis(A) | 2.02 | 428,579 | -12.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Madden Larry | Chief Financial Officer | 322,000 | 4,089,400 $ | Oct 13, 2026 | direct |
| Vanderhook Christopher | Chief Operating Officer | 285,244 | 3,622,599 $ | Jul 23, 2026 | both |
| Vanderhook Timothy | CEO and Chairman | 200,244 | 2,543,099 $ | Jul 23, 2026 | both |
| Abrahams Craig Justin | Director | 39,109 | 496,684 $ | Aug 10, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 13, 2026 | Madden Larry | Chief Financial Officer | Sell | 20,711 | 13.14 | 272,060 |
| Sep 18, 2026 | Madden Larry | Chief Financial Officer | Sell | 14,602 | 12.10 | 176,735 |
| Sep 16, 2026 | Madden Larry | Chief Financial Officer | Sell | 17,042 | 12.52 | 213,284 |
| Sep 10, 2026 | Vanderhook Christopher | Chief Operating Officer | Other | 8,636 | 12.74 | 110,023 |
| Sep 10, 2026 | Vanderhook Timothy | CEO and Chairman | Other | 8,636 | 12.74 | 110,023 |
| Sep 10, 2026 | Madden Larry | Chief Financial Officer | Other | 24,016 | 12.74 | 305,964 |
| Aug 11, 2026 | Madden Larry | Chief Financial Officer | Sell | 1,431 | 13.68 | 19,570 |
| Aug 11, 2026 | Madden Larry | Chief Financial Officer | Sell | 26,020 | 13.03 | 338,944 |
| Aug 10, 2026 | Abrahams Craig Justin | Director | Other | 10,720 | 0.00 | – |
| Aug 10, 2026 | Abrahams Craig Justin | Director | Other | 28,389 | 0.00 | – |
| Jul 23, 2026 | Madden Larry | Chief Financial Officer | Sell | 2,814 | 10.69 | 30,070 |
| Jul 23, 2026 | Capital V LLC | 10% Owner | Sell | 12,912 | 10.47 | 135,194 |
| Jul 23, 2026 | Vanderhook Christopher | Chief Operating Officer | Sell | 4,304 | 10.47 | 45,065 |
| Jul 23, 2026 | Vanderhook Timothy | CEO and Chairman | Sell | 4,304 | 10.47 | 45,065 |
| Jul 22, 2026 | Capital V LLC | 10% Owner | Sell | 15,000 | 11.03 | 165,519 |
| Jul 22, 2026 | Vanderhook Christopher | Chief Operating Officer | Sell | 5,000 | 11.03 | 55,173 |
| Jul 22, 2026 | Vanderhook Timothy | CEO and Chairman | Sell | 5,000 | 11.03 | 55,173 |
| Jul 21, 2026 | Capital V LLC | 10% Owner | Sell | 9,588 | 11.70 | 112,220 |
| Jul 21, 2026 | Capital V LLC | 10% Owner | Other | 37,500 | 0.00 | – |
| Jul 21, 2026 | Capital V LLC | 10% Owner | Other | 37,500 | 0.00 | – |
| Jul 21, 2026 | Vanderhook Christopher | Chief Operating Officer | Sell | 3,196 | 11.70 | 37,407 |
| Jul 21, 2026 | Vanderhook Christopher | Chief Operating Officer | Other | 12,500 | 0.00 | – |
| Jul 21, 2026 | Vanderhook Christopher | Chief Operating Officer | Other | 12,500 | 0.00 | – |
| Jul 21, 2026 | Vanderhook Timothy | CEO and Chairman | Sell | 3,196 | 11.70 | 37,407 |
| Jul 21, 2026 | Vanderhook Timothy | CEO and Chairman | Other | 12,500 | 0.00 | – |
| Jul 21, 2026 | Vanderhook Timothy | CEO and Chairman | Other | 12,500 | 0.00 | – |
| Jul 8, 2026 | Madden Larry | Chief Financial Officer | Sell | 11,273 | 12.69 | 143,110 |
| Jul 7, 2026 | Madden Larry | Chief Financial Officer | Sell | 9,149 | 12.86 | 117,664 |
| Jul 6, 2026 | Madden Larry | Chief Financial Officer | Sell | 10,097 | 12.78 | 128,999 |
| Apr 23, 2026 | Larry Madden | CFO | Sell | 12,782 | 10.16 | 129,865 |
| Apr 22, 2026 | Capital V Llc | Major Shareholder | Sell | 8,389 | 10.74 | 90,098 |
| Apr 22, 2026 | Larry Madden | CFO | Sell | 13,263 | 10.74 | 142,445 |
| Apr 22, 2026 | Timothy Vanderhook | CEO | Sell | 2,796 | 10.74 | 30,029 |
| Apr 21, 2026 | Capital V Llc | Major Shareholder | Sell | 14,111 | 10.91 | 153,951 |
| Apr 21, 2026 | Larry Madden | CFO | Sell | 13,283 | 10.91 | 144,918 |
| Apr 21, 2026 | Timothy Vanderhook | CEO | Sell | 4,704 | 10.91 | 51,321 |
| Apr 20, 2026 | Capital V Llc | Major Shareholder | Sell | 15,000 | 11.12 | 166,800 |
| Apr 20, 2026 | Timothy Vanderhook | CEO | Sell | 5,000 | 11.12 | 55,600 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.