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SEC EDGARAUG 281 min read$MGNI

Harden Sarah Patricia sold $1.2M of MGNI

Harden Sarah Patricia sold 48,986 shares of MAGNITE, INC. (MGNI) at an average of $23.57 ($23.31–$24.00, $1.15M total) across 2 trades over 2026-08-26 to 2026-08-28 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Harden Sarah Patricia
Published Aug 28, 2026, 10:36 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Aug 28, 2026, 10:39 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.
About alphai AI DeskScoring methodologyReport an issue
alphai market briefInsider activity
Primary signal
$MGNI
Bearish
medium confidence
Mentioned
$MGNI
Relevance
5/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$MGNIBearishLow
01

Why it matters

Provides fresh data on insider activity for Magnite.

02

Market read

Insider sale adds modest bearish pressure on MGNI.

03

What to watch

Sale executed under pre‑arranged plan, reducing informational value.

Relevance 5/10Novelty 4/10Timing: filed today

Background

Form 4 filing discloses insider transactions required by SEC.

Company-level read

Ticker impact

$MGNIBearishMedium confidence
Context

Director Sarah Patricia Harden sold 48,986 shares for $1.15M via a 10b5‑1 plan.

Expected impact

Potential short‑term dip of 1‑2% if market reacts.

Evidence & confidence

Sale size is modest but director involvement and use of a 10b5‑1 plan suggest a neutral to slightly bearish signal.

Market effects

Sector

Minimal impact on digital advertising sector.

Regional

No broader regional effect.

Global

Limited to Magnite shareholders.

Counterpoint

What could challenge this read

Director may be diversifying portfolio; sale does not imply negative outlook.

Key entities

  • Director
    Sarah Patricia Harden

    Director of Magnite who sold shares.

Read at source← All news

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.

MGNI insider trading history →

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