SEC Form 4Coverage since Sep 15, 2025Open-market trades only
$DSP insider trading
Over the last 12 months, Viant Technology insiders reported no purchases and 69 sales totaling $24.0M across SEC Form 4 filings. 81% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- — 0 events
- Sold · 12m
- $24.0M 69 events
- Events · 12m
- 69 Form 4 filings, grouped
- Insiders · 12m
- 5 distinct reporters
- 10b5-1 share
- 81% of events, not dollars
Side
Price · $DSP · 3Mvia TradingView
Top insiders · 12m
Vanderhook TimothyCEO and Chairman20× · $4.7M
Vanderhook ChristopherChief Operating Officer20× · $4.7M
Capital V LLC—16× · $11.9M
MADDEN LARRYChief Financial Officer12× · $2.5M
VALDES MAX O—1× · $80K
All insider trades
50 of 69 events
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | MADDEN LARRYChief Financial Officer · O | ▼ Sale | 27,451 | $13.06 | $359K | -6.4% | plan · 2 tranches |
| Jul 23, 2026 | MADDEN LARRYChief Financial Officer · O | ▼ Sale | 2,814 | $10.69 | $30K | -0.7% | plan |
| Jul 23, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▼ Sale | 12,500 | $11.01 | $138K | -100% | plan · 3 tranches · indirect |
| Jul 23, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▼ Sale | 12,500 | $11.01 | $138K | -100% | plan · 3 tranches · indirect |
| Jul 23, 2026 | Capital V LLC10% | ▼ Sale | 37,500 | $11.01 | $413K | -100% | plan · 3 tranches |
| Jul 21, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
| Jul 21, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
| Jul 21, 2026 | Capital V LLC10% | ▽ Sale to issuer | 37,500 | — | — | -0.1% | plan |
| Jul 8, 2026 | MADDEN LARRYChief Financial Officer · O | ▼ Sale | 30,519 | $12.77 | $390K | -6.6% | plan · 3 tranches |
| Jun 18, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▼ Sale | 12,500 | $11.1 | $139K | -100% | plan · 3 tranches · indirect |
| Jun 18, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▼ Sale | 12,500 | $11.1 | $139K | -100% | plan · 3 tranches · indirect |
| Jun 18, 2026 | Capital V LLC10% | ▼ Sale | 37,500 | $11.1 | $416K | -100% | plan · 3 tranches |
| Jun 16, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
| Jun 16, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
| Jun 16, 2026 | Capital V LLC10% | ▽ Sale to issuer | 37,500 | — | — | -0.1% | plan |
| Jun 15, 2026 | MADDEN LARRYChief Financial Officer · O | ▼ Sale | 25,376 | $11.1 | $282K | -5.2% | — |
| Jun 15, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▼ Sale | 9,125 | $11.1 | $101K | -3% | — |
| Jun 15, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▼ Sale | 9,125 | $11.1 | $101K | -4.2% | — |
| Jun 9, 2026 | VALDES MAX OD | ▼ Sale | 6,686 | $12.03 | $80K | -18.5% | 2 tranches |
| Jun 8, 2026 | MADDEN LARRYChief Financial Officer · O | ▼ Sale | 33,333 | $12.18 | $406K | -6.4% | plan · 2 tranches |
| Apr 23, 2026 | MADDEN LARRYChief Financial Officer · O | ▼ Sale | 39,328 | $10.61 | $417K | -6.6% | plan · 3 tranches |
| Apr 22, 2026 | Capital V LLC10% | ▼ Sale | 37,500 | $10.96 | $411K | -100% | plan · 3 tranches |
| Apr 22, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▼ Sale | 12,500 | $10.96 | $137K | -100% | plan · 3 tranches · indirect |
| Apr 22, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▼ Sale | 12,500 | $10.96 | $137K | -100% | plan · 3 tranches · indirect |
| Apr 20, 2026 | Capital V LLC10% | ▽ Sale to issuer | 37,500 | — | — | -0.1% | plan |
| Apr 20, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
| Apr 20, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
| Apr 6, 2026 | MADDEN LARRYChief Financial Officer · O | ▼ Sale | 7,297 | $11.31 | $83K | -1.2% | plan |
| Apr 2, 2026 | MADDEN LARRYChief Financial Officer · O | ▼ Sale | 17,541 | $11.08 | $194K | -2.8% | plan · 2 tranches |
| Mar 19, 2026 | Capital V LLC10% | ▼ Sale | 38,760 | $11.79 | $457K | -100% | plan · 3 tranches |
| Mar 19, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▼ Sale | 12,920 | $11.79 | $152K | -100% | plan · 3 tranches · indirect |
| Mar 19, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▼ Sale | 12,920 | $11.79 | $152K | -100% | plan · 3 tranches · indirect |
| Mar 17, 2026 | Capital V LLC10% | ▽ Sale to issuer | 37,500 | — | — | -0.1% | plan |
| Mar 17, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
| Mar 17, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
| Mar 13, 2026 | MADDEN LARRYChief Financial Officer · O | ▼ Sale | 1,658 | $13.03 | $22K | -0.4% | plan |
| Mar 10, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▽ Sale to issuer | 44,177 | $10.5 | $464K | -12.7% | — |
| Mar 10, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▽ Sale to issuer | 44,177 | $10.5 | $464K | -16.8% | — |
| Feb 19, 2026 | Capital V LLC10% | ▼ Sale | 36,240 | $9.21 | $334K | -96.6% | plan · 3 tranches |
| Feb 19, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▼ Sale | 12,080 | $9.21 | $111K | -96.6% | plan · 3 tranches · indirect |
| Feb 19, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▼ Sale | 12,080 | $9.21 | $111K | -96.6% | plan · 3 tranches · indirect |
| Feb 17, 2026 | Capital V LLC10% | ▽ Sale to issuer | 37,500 | — | — | -0.1% | plan |
| Feb 17, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
| Feb 17, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
| Jan 22, 2026 | MADDEN LARRYChief Financial Officer · O | ▼ Sale | 4,224 | $13.09 | $55K | -1% | plan |
| Jan 22, 2026 | Capital V LLC10% | ▼ Sale | 37,500 | $12.25 | $459K | -100% | plan · 3 tranches |
| Jan 22, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▼ Sale | 12,500 | $12.25 | $153K | -100% | plan · 3 tranches · indirect |
| Jan 22, 2026 | Vanderhook TimothyCEO and Chairman · O·D·10% | ▼ Sale | 12,500 | $12.25 | $153K | -100% | plan · 3 tranches · indirect |
| Jan 20, 2026 | Capital V LLC10% | ▽ Sale to issuer | 37,500 | — | — | -0.1% | plan |
| Jan 20, 2026 | Vanderhook ChristopherChief Operating Officer · O·D·10% | ▽ Sale to issuer | 12,500 | — | — | -0.1% | plan · indirect |
Every $DSP filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Viant Technology filings can reach your inbox instead.
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $DSP feed.