Viant Technology (DSP)
Buy-side ad-tech platform pairing a cookieless identity layer with AI-driven CTV campaign planning and bidding.
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13F · 13D/G · Form 4
| Institutions | ≈ 18.46% | 12.27M shares | |
|---|---|---|---|
| 127 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 27.95% | 18.58M shares | |
| 8 holders · as of Sep 18, 2026 | |||
| Strategic holders | 83.73% | 55.66M shares | |
| 2 holders · as of Jul 23, 2026 | |||
| Adds to | 130.14% | ||
66.47M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 130.14%; nothing is left for Other.
This company has 2 share classes; every stake here is a share of the whole company.
13F, as of Jun 30, 2026
127 holders · 12.27M shares · 19 new positions · 79 increased · 29 reduced · 18 closed
| Holder | Shares | % of company | Chg q/q | Filed |
|---|---|---|---|---|
| Punch & Associates Investment Management, Inc. | 1.50M | 2.26% | +154.3K | Aug 14, 2026 |
| BlackRock, Inc. | 1.27M | 1.92% | +170.1K | Aug 7, 2026 |
| Royce & Associates LP | 1.07M | 1.61% | +63.2K | Aug 14, 2026 |
| Vanguard Capital Management LLC | 846.0K | 1.27% | +174.1K | Aug 13, 2026 |
| Potomac Capital Management, Inc. | 538.0K | 0.81% | +5.4K | Aug 14, 2026 |
| Geode Capital Management, LLC | 482.2K | 0.73% | +104.3K | Aug 12, 2026 |
| Renaissance Technologies LLC | 425.7K | 0.64% | −16.1K | Aug 13, 2026 |
| State Street Corp | 338.2K | 0.51% | +25.4K | Aug 7, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Capital V LLC | 62.30% | 27.51M | 13G | Nov 14, 2025 |
| Christopher Vanderhook | 32.80% | 8.79M | 13G | May 13, 2026 |
| Timothy Vanderhook | 32.40% | 8.70M | 13G | May 13, 2026 |
| Punch & Associates Investment Management, Inc. | 7.30% | 1.16M | 13G | Aug 14, 2025 |
| Royce & Associates LP | 5.47% | 912.0K | 13G | Jan 21, 2026 |
| Larry Madden | 5.10% | 1.08M | 13D | Jun 18, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 18, 2026 | Larry Maddenofficer: Chief Financial Officer | Sale | 14,602 | $12.10 | 342,711 |
| Sep 16, 2026 | Larry Maddenofficer: Chief Financial Officer | Sale | 17,042 | $12.52 | 357,313 |
| Aug 11, 2026 | Larry Maddenofficer: Chief Financial Officer | Sale · 2 lots | 27,451 | $13.06 | 398,371 |
| Jul 23, 2026 | Larry Maddenofficer: Chief Financial Officer | Sale | 2,814 | $10.69 | 425,822 |
| Jul 23, 2026 | Capital V LLC10 percent owner | Sale | 12,912 | $10.47 | 0 |
| Jul 22, 2026 | Capital V LLC10 percent owner | Sale | 15,000 | $11.03 | 12,912 |
| Jul 21, 2026 | Capital V LLC10 percent owner | Sale | 9,588 | $11.70 | 27,912 |
| Jul 23, 2026 | Christopher Vanderhookdirector, 10 percent owner, officer: Chief Operating Officer | Sale | 4,304 | $10.47 | 0 |
| Jul 22, 2026 | Christopher Vanderhookdirector, 10 percent owner, officer: Chief Operating Officer | Sale | 5,000 | $11.03 | 4,304 |
| Jul 21, 2026 | Christopher Vanderhookdirector, 10 percent owner, officer: Chief Operating Officer | Sale | 3,196 | $11.70 | 9,304 |
House and Senate disclosures
Not reported.