$MGNI

Buonasera David sold $188K of MGNI

Buonasera David (CHIEF TECHNOLOGY OFFICER) sold 9,376 shares of MAGNITE, INC. (MGNI) at $20.00 ($0.19M total) on 2026-07-01 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Buonasera David
Published Jul 2, 2026, 11:07 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Jul 2, 2026, 11:11 PM 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
$MGNI
Neutral
high confidence
Mentioned
$MGNI
Relevance
3/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$MGNINeutralLow
01

Why it matters

The newest fact is the disclosed open-market sale size, price, and post-transaction holdings, but it does not include new business performance or guidance.

02

Market read

Insider selling can influence sentiment, but 10b5-1 context typically reduces interpretive weight.

03

What to watch

Traders should check for clustering of insider sales across recent filings and whether any purchases offset sales; this article alone doesn’t show that.

Relevance 3/10Novelty 5/10Timing: Form 4 filed 2026-07-02 after the 2026-07-01 sale

Background

The article is an SEC Form 4 insider transaction disclosure for Magnite, Inc. (MGNI).

Company-level read

Ticker impact

$MGNINeutralHigh confidence
Context

Magnite CTO Buonasera David sold 9,376 shares on 2026-07-01 at $20.00/share under a pre-arranged 10b5-1 plan.

Expected impact

Low near-term impact; any reaction is likely muted unless accompanied by unusual follow-on disclosures.

Evidence & confidence

The filing is a scheduled open-market sale (10b5-1) with no accompanying operational/regulatory catalyst in the text.

Market effects

Minimal; this is company-specific insider transaction disclosure with no sector-wide datapoint.

None indicated.

None indicated.

Counterpoint

Because the sale is explicitly under a pre-arranged 10b5-1 plan, it may reflect liquidity/compensation mechanics rather than bearish fundamentals.

Key entities

  • MAGNITE, INC.

    Subject of the Form 4 insider transaction; CTO Buonasera David sold shares under a 10b5-1 plan.

  • Buonasera David

    Chief Technology Officer who executed the reported sale.

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