Viant Technology Inc. (DSP) Insider Trading
Over the last 3 months, DSP insiders made 0 open-market buys and 31 sales, a net sale of -$2.7M (SEC Form 4). Over the last 6 months, 91 institutions increased and 70 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
31
Net (3m)
-$2.7M
Insider trades by month Buys Sells
Dec
Jan
Feb
Mar
Apr
May
Context3-month price +18.7%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 21, 2026 | Vanderhook Christopherdirector, 10 percent owner, officer: Chief Operating Officer | Sell | 2,500 | $10.79 |
| May 21, 2026 | Vanderhook Christopherdirector, 10 percent owner, officer: Chief Operating Officer | Option | 12,500 | — |
| May 21, 2026 | Vanderhook Christopherdirector, 10 percent owner, officer: Chief Operating Officer | Sell | 5,000 | $10.89 |
| May 21, 2026 | Capital V LLC10 percent owner | Sell | 7,500 | $10.79 |
| May 21, 2026 | Capital V LLC10 percent owner | Sell | 15,000 | $10.89 |
| May 21, 2026 | Capital V LLC10 percent owner | Option | 37,500 | — |
| May 21, 2026 | Vanderhook Timothydirector, 10 percent owner, officer: CEO and Chairman | Sell | 2,500 | $10.79 |
| May 21, 2026 | Vanderhook Timothydirector, 10 percent owner, officer: CEO and Chairman | Sell | 5,000 | $10.89 |
| May 21, 2026 | Vanderhook Timothydirector, 10 percent owner, officer: CEO and Chairman | Option | 12,500 | — |
| May 12, 2026 | MADDEN LARRYofficer: Chief Financial Officer | Sell | 18,538 | $11.85 |
| May 12, 2026 | MADDEN LARRYofficer: Chief Financial Officer | Sell | 13,826 | $11.29 |
| May 12, 2026 | MADDEN LARRYofficer: Chief Financial Officer | Sell | 3,471 | $11.95 |
| Apr 23, 2026 | MADDEN LARRYofficer: Chief Financial Officer | Sell | 12,782 | $10.16 |
| Apr 23, 2026 | MADDEN LARRYofficer: Chief Financial Officer | Sell | 13,263 | $10.74 |
| Apr 23, 2026 | MADDEN LARRYofficer: Chief Financial Officer | Sell | 13,283 | $10.91 |
| Apr 22, 2026 | Vanderhook Christopherdirector, 10 percent owner, officer: Chief Operating Officer | Option | 12,500 | — |
| Apr 22, 2026 | Vanderhook Christopherdirector, 10 percent owner, officer: Chief Operating Officer | Sell | 5,000 | $11.12 |
| Apr 22, 2026 | Vanderhook Christopherdirector, 10 percent owner, officer: Chief Operating Officer | Sell | 4,704 | $10.91 |
| Apr 22, 2026 | Vanderhook Christopherdirector, 10 percent owner, officer: Chief Operating Officer | Sell | 2,796 | $10.74 |
| Apr 22, 2026 | Capital V LLC10 percent owner | Sell | 15,000 | $11.12 |
| Apr 22, 2026 | Capital V LLC10 percent owner | Sell | 8,389 | $10.74 |
| Apr 22, 2026 | Vanderhook Timothydirector, 10 percent owner, officer: CEO and Chairman | Option | 12,500 | — |
| Apr 22, 2026 | Vanderhook Timothydirector, 10 percent owner, officer: CEO and Chairman | Sell | 5,000 | $11.12 |
| Apr 22, 2026 | Vanderhook Timothydirector, 10 percent owner, officer: CEO and Chairman | Sell | 4,704 | $10.91 |
| Apr 22, 2026 | Vanderhook Timothydirector, 10 percent owner, officer: CEO and Chairman | Sell | 2,796 | $10.74 |
| Apr 22, 2026 | Capital V LLC10 percent owner | Option | 37,500 | — |
| Apr 22, 2026 | Capital V LLC10 percent owner | Sell | 14,111 | $10.91 |
| Apr 7, 2026 | MADDEN LARRYofficer: Chief Financial Officer | Sell | 7,297 | $11.31 |
| Apr 3, 2026 | MADDEN LARRYofficer: Chief Financial Officer | Sell | 7,410 | $11.27 |
| Apr 3, 2026 | MADDEN LARRYofficer: Chief Financial Officer | Sell | 10,131 | $10.94 |
Source: DSP SEC Form 4 filings, latest May 21, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their DSP positions over the last 6 months (SEC Form 13F).
Increased
91
New positions
45
Reduced
70
Sold out
33
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | Increased | 1.3M | May 15, 2026 |
| BLACKROCK, INC. | Increased | 1.2M | Feb 12, 2026 |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | Reduced | 1.2M | Feb 17, 2026 |
| BLACKROCK, INC. | Reduced | 1.1M | May 13, 2026 |
| ROYCE & ASSOCIATES LP | Increased | 1.0M | May 12, 2026 |
| VANGUARD GROUP INC | Increased | 977K | Jan 29, 2026 |
| ROYCE & ASSOCIATES LP | Increased | 912K | Feb 9, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 672K | May 15, 2026 |
| POTOMAC CAPITAL MANAGEMENT, INC. | Increased | 533K | May 14, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 494K | Feb 12, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 442K | May 14, 2026 |
| POTOMAC CAPITAL MANAGEMENT, INC. | New Position | 441K | Feb 11, 2026 |
| MILLENNIUM MANAGEMENT LLC | Increased | 430K | Feb 17, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 378K | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 375K | Feb 9, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.