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sellModerate cluster of 410b5-1 plan

Timothy Vanderhook sold $29k of DSP

CEO and Chairman at Viant Technology Inc.. 2,500 shares at an average of $11.79, traded Dec 19, 2025, filed Dec 19, 2025.

Warning score
45
Value
$29k
2,500 shares
Holdings after
0
-100% from before
From 52-week low
+44%
low $8.14, close $11.76
From 52-week high
-55%
high $25.95, as of Dec 19, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $29k at market
    +5
  • Share of holdings sold
    Sold 100% of holdings
    +20
  • Cluster
    4 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +6.6%, 3m -3.2%, 6m -4.4%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

DSPOct 12, 2026 · close 13.17
Since filing Dec 19, 2025: +12.0%SPY +15.2% · excess -3.2%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001843103-25-000010, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 19, 2025SOpen-market sale
Class A Common Stockindirect: By Capital V LLC10b5-1
-2,500$11.79$29k0Dec 19, 2025

Related signals

Other insiders at Viant Technology Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
18Weak
DSPsell10b5-1
Viant Technology Inc.
Larry Madden
Chief Financial Officer
$390k
31,644 shares
-8%
17Weak
DSPsell10b5-1
Viant Technology Inc.
Larry Madden
Chief Financial Officer
$359k
27,451 shares
-6%
22Weak
DSPsell 410b5-1
Viant Technology Inc.
Larry Madden
Chief Financial Officer
$30k
2,814 shares
-1%
28Weak
DSPsell 410b5-1
Viant Technology Inc.
Capital V LLC
owner
$413k
37,500 shares
-100%
31Weak
DSPsell 410b5-1
Viant Technology Inc.
Christopher Vanderhook
Chief Operating Officer
$138k
12,500 shares
-100%
36Weak
DSPsell 410b5-1
Viant Technology Inc.
Timothy Vanderhook
CEO and Chairman
$138k
12,500 shares
-100%
18Weak
DSPsell10b5-1
Viant Technology Inc.
Larry Madden
Chief Financial Officer
$390k
30,519 shares
-7%
28Weak
DSPsell 510b5-1
Viant Technology Inc.
Capital V LLC
owner
$416k
37,500 shares
-100%
31Weak
DSPsell 510b5-1
Viant Technology Inc.
Christopher Vanderhook
Chief Operating Officer
$139k
12,500 shares
-100%
36Weak
DSPsell 510b5-1
Viant Technology Inc.
Timothy Vanderhook
CEO and Chairman
$139k
12,500 shares
-100%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Timothy Vanderhook sold $29k of DSP | InsiderTell