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SEC EDGARSEP 31 min read$STX

MOSLEY WILLIAM D sold $24.5M of STX

MOSLEY WILLIAM D (CEO) sold 30,000 shares of Seagate Technology Holdings plc (STX) at an average of $816.28 ($804.61–$832.04, $24.49M total) across 26 trades on 2026-09-01 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · MOSLEY WILLIAM D
Published Sep 3, 2026, 8:51 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Sep 3, 2026, 11:26 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
$STX
Bearish
medium confidence
Mentioned
$STX
Relevance
6/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$STXBearishMed
01

Why it matters

The disclosed sale adds new information about insider sentiment, which traders may use to adjust positions.

02

Market read

Insider sales of this magnitude are closely watched and can trigger short‑term price moves.

03

What to watch

Recent strong earnings or upcoming product launches could offset the sell pressure.

Relevance 6/10Novelty 7/10Timing: filed today (Sep 3, 2026)

Background

SEC Form 4 filing discloses insider transactions; this is the first public report of the CEO's sale.

Company-level read

Ticker impact

$STXBearishMedium confidence
Context

CEO William D. Mosley sold 30,000 shares worth $24.5M via a 10b5‑1 plan on Sep 1, 2026.

Expected impact

Potential short‑term downside as market digests the $24.5M sale.

Evidence & confidence

The sale size is material for a mid‑cap and executed through a pre‑arranged plan, suggesting a strategic reduction of holdings.

Market effects

Sector

May raise concerns for the broader data‑storage sector if other insiders follow suit.

Regional

Limited to U.S. markets where Seagate trades.

Global

Minimal global impact beyond Seagate shareholders.

Counterpoint

What could challenge this read

The sale could be purely liquidity‑driven under the 10b5‑1 plan, not a negative signal.

Key entities

  • Company
    Seagate Technology Holdings plc

    Data storage hardware manufacturer listed on NASDAQ (STX).

  • Person
    William D. Mosley

    CEO of Seagate, reporting a $24.5M share sale.

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.

STX insider trading history →

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