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SEC EDGARJUL 21 min read$STX

MOSLEY WILLIAM D sold $8.6M of STX

MOSLEY WILLIAM D (CEO) sold 9,343 shares of Seagate Technology Holdings plc (STX) at an average of $924.42 ($919.64–$936.36, $8.64M total) across 15 trades on 2026-07-01 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · MOSLEY WILLIAM D
Published Jul 2, 2026, 4:00 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Aug 6, 2026, 7:25 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.
About alphai AI DeskScoring methodologyReport an issue
alphai market briefInsider activity
Primary signal
$STX
Neutral
high confidence
Mentioned
$STX
Relevance
5/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$STXNeutralLow
01

Why it matters

The disclosed event is an open-market sale by the CEO, pre-arranged under Rule 10b5-1, totaling about $8.64M across 15 trades.

02

Market read

Traders may monitor insider activity for sentiment, but this specific filing does not introduce new company fundamentals or a discrete catalyst.

03

What to watch

Because the trades are under a 10b5-1 plan, the sale timing is mechanically scheduled and may not reflect new negative information; also, the filing does not state whether other insiders are buying or selling concurrently.

Relevance 5/10Novelty 3/10Timing: filed 2026-07-02 for trades dated 2026-07-01

Background

The article is a SEC Form 4 insider transaction disclosure for Seagate Technology Holdings plc (STX).

Company-level read

Ticker impact

$STXNeutralHigh confidence
Context

Seagate CEO William D. Mosley sold about 9,343 shares in open-market trades for roughly $8.64M under a 10b5-1 plan.

Expected impact

Near-term impact likely limited; any effect would be incremental sentiment around insider selling rather than a new catalyst.

Evidence & confidence

The filing is a Form 4 open-market sale executed under a pre-arranged Rule 10b5-1 plan, with no accompanying guidance, deal, or regulatory action disclosed in the text.

Market effects

Sector

Limited read-through to the storage/tech hardware sector because the disclosure is an individual insider transaction, not a company event.

Regional

None indicated.

Global

None indicated.

Counterpoint

What could challenge this read

Insider sales can still signal valuation or liquidity needs, and traders may front-run additional selling if multiple executives file similar Form 4s soon.

Key entities

  • issuer
    Seagate Technology Holdings plc

    Subject of the Form 4 insider transaction disclosure.

  • insider
    MOSLEY WILLIAM D

    CEO and reporting person who sold shares under a 10b5-1 plan.

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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