$MGNI

Buckley Sean Patrick sold $1.6M of MGNI

Buckley Sean Patrick (See Remarks) sold 67,179 shares of MAGNITE, INC. (MGNI) at an average of $24.49 ($23.00–$25.09, $1.65M total) across 2 trades on 2026-08-06 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Buckley Sean Patrick
Published Aug 7, 2026, 9:14 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Aug 7, 2026, 9:23 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
medium confidence
Mentioned
$MGNI
Relevance
5/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$MGNINeutralLow
01

Why it matters

The newest fact is the specific open-market sale size, price range, and total value, plus confirmation it was executed under a 10b5-1 plan.

02

Market read

Traders may briefly reassess sentiment around MGNI due to insider selling, but the 10b5-1 framing reduces signal strength.

03

What to watch

The article does not state whether sales were part of a broader pattern, nor does it include any concurrent buys or changes in total insider ownership beyond the post-transaction holdings.

Relevance 5/10Novelty 3/10Timing: filed 2026-08-07 after trades on 2026-08-06

Background

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

Company-level read

Ticker impact

$MGNINeutralMedium confidence
Context

Magnite Form 4 shows officer Buckley Sean Patrick sold 67,179 shares in open-market trades under a 10b5-1 plan, totaling about $1.65M.

Expected impact

Likely limited, short-lived sentiment impact; no direct fundamental change implied by the filing.

Evidence & confidence

The filing is a routine 10b5-1 planned sale by an officer, with no accompanying guidance, operational update, or regulatory action in the text.

Market effects

No sector-level implications are disclosed; this is company-specific insider transaction data.

None indicated.

None indicated.

Counterpoint

Because the sale is explicitly under a pre-arranged 10b5-1 plan, it may reflect scheduled liquidity needs rather than bearish expectations.

Key entities

  • MAGNITE, INC.

    US-listed company whose officer sale is disclosed via SEC Form 4.

  • Buckley Sean Patrick

    Officer who sold 67,179 shares in two trades on 2026-08-06 under a 10b5-1 plan.

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