Vanderhook Christopher sold (to issuer) 12,500 shares of DSP (indirect holdings)

Vanderhook Christopher (Chief Operating Officer) sold (to issuer) 12,500 indirectly-held shares of Viant Technology Inc. (DSP) on 2026-07-21 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Vanderhook Christopher
Published Jul 24, 2026, 1:54 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jul 24, 2026, 2:00 AM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefInsider activity
Primary signal
$DSP
Neutral
high confidence
Mentioned
$DSP
Relevance
3/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$DSPNeutralLow
01

Why it matters

The disclosed event is a planned sale to the issuer under a 10b5-1 plan by the COO, which generally carries limited fundamental information.

02

Market read

Confirms insider liquidity activity via a planned transaction; not a fundamental catalyst.

03

What to watch

Because the price and total value are not disclosed and the sale is to the issuer, the economic signal is weaker than a typical open-market sale.

Relevance 3/10Novelty 3/10Timing: New SEC Form 4 filed 2026-07-23 for a 2026-07-21 sale to issuer.

Background

The article is an SEC Form 4 insider transaction disclosure for Viant Technology Inc. (DSP).

Company-level read

Ticker impact

$DSPNeutralHigh confidence
Context

Viant Technology COO Vanderhook Christopher sold 12,500 shares to the issuer under a pre-arranged 10b5-1 plan, with indirect holdings reported.

Expected impact

Likely minimal near-term impact; any effect would be second-order sentiment rather than fundamentals.

Evidence & confidence

The filing is a Form 4 insider transaction with no disclosed price or value, and it explicitly states a pre-arranged 10b5-1 plan, which typically reduces interpretive weight.

Market effects

No sector read-through; this is an individual planned insider transaction.

None indicated.

None indicated.

Counterpoint

Even planned 10b5-1 sales can coincide with insider expectations of near-term risk, so traders may watch for follow-on sales or other insider actions.

Key entities

  • Viant Technology Inc.

    Company whose insider transaction is disclosed on SEC Form 4.

  • Vanderhook Christopher

    Chief Operating Officer reporting an indirect sale to the issuer of 12,500 shares under a 10b5-1 plan.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

Related articles

Med

Viant net income drops 49% in record quarter as revenue gains 29%

Viant Technology reported Q3 2026 revenue up 29% to $110.4M, but net income fell 49% to $2.6M. Contribution ex-TAC and adjusted EBITDA beat guidance. The company acquired Waymark for $20M and expanded integrations with AI platforms. Healthcare and public services drove growth, with CTV spend exceeding 50% of total platform spend.

Med

Viant Technology (DSP) Q3 2026 Earnings Call Transcript

Viant Technology (DSP) reported Q3 2026 earnings with revenue up 29% YoY, exceeding guidance. CTV advertiser spend rose 40% YoY. Adjusted EBITDA increased 24% to $19.8M. The company acquired Waymark, a generative AI video platform, to enhance CTV ad capabilities. Viant's proprietary intelligence and AI solutions drove growth across verticals.

$DSPMed

Viant Technology Inc (DSP) (Q3 2026) Earnings Call Highlights: Revenue Surges 29% as CTV

Viant Technology (DSP) reported Q3 2026 revenue of $110.4M, up 29% YoY, exceeding guidance. CTV advertiser spend grew 40% YoY, contributing over 50% of total platform spend. Adjusted EBITDA rose 24% to $19.8M. The company acquired Waymark for AI video creative production, but open internet traffic decline and slow TVision adoption were noted as risks. Q4 guidance projects revenue of $130.5M-$133.5M, up 20% at midpoint.

$DSPMed

Viant Technology Q3 Earnings Call Highlights

Viant Technology reported a 41% rise in spending enabled by IRIS Content ID. Its autonomous advertising product, Outcomes, was used by over 10% of advertisers, with top 10 advertisers allocating 26% of their spending to it. The company integrated its platform with AI interfaces and launched TVision Mobile Meter. Viant forecasted Q4 revenue of $130.5M-$133.5M and adjusted EBITDA of $31M-$32M. It also increased its share repurchase authorization by $50M.

$DSPMed

Viant Q3 2026 slides: CTV surge drives record revenue, margins

Viant Technology (DSP) reported Q3 2026 revenue of $110.4M, up 29% YoY, with adjusted EBITDA of $19.8M (29% margin). CTV demand drove growth, with CTV spend exceeding 50% of total advertiser spend. Shares rose 9.3% pre-market but fell 7.1% after-hours. Q4 guidance projects $132M revenue (20% YoY growth) and $31.5M adjusted EBITDA (39% margin).

$DSPHigh

Viant Technology Announces Third Quarter 2026 Financial Results

Viant Technology Inc. (DSP) filed an SEC Form 8-K — Results of Operations and Financial Condition. Exhibit 99.1 Viant Technology Announces Third Quarter 2026 Financial Results Revenue increased 29% year-over-year Gross profit increased 30% year-over-year Contribution ex-TAC increased 27% year-over-year Adjusted EBITDA increased 24% year-over-year Increased share repurchase aut