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SEC EDGAROCT 21 min read$STX

MOSLEY WILLIAM D sold $10.3M of STX

MOSLEY WILLIAM D (CEO) sold 11,002 shares of Seagate Technology Holdings plc (STX) at an average of $935.60 ($929.01–$945.97, $10.29M total) across 16 trades on 2026-10-01 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · MOSLEY WILLIAM D
Published Oct 2, 2026, 8:07 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Oct 2, 2026, 8:12 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

$STXBearishLow
01

Why it matters

The disclosed sale adds a fresh data point for valuation models and may influence short‑term trading strategies.

02

Market read

Insider sell of this size can trigger short‑term price pressure, especially given the CEO's role.

03

What to watch

The 10b5‑1 plan indicates pre‑scheduled sales, which may mitigate negative signaling.

Relevance 6/10Novelty 6/10Timing: after market close on 2026-10-01

Background

Form 4 filings disclose insider transactions; a CEO sale of over $10M is noteworthy for investors monitoring insider sentiment.

Company-level read

Ticker impact

$STXBearishMedium confidence
Context

CEO William Mosley sold $10.3M of shares via a Form 4 filing, reducing his stake to 362,108 shares.

Expected impact

likely downward pressure as the market prices in the insider sell

Evidence & confidence

A $10M open‑market sale by the CEO is material for a mid‑cap like Seagate and often triggers short‑term selling pressure.

Market effects

Sector

Minimal impact on the broader data storage sector; investors may watch for similar insider activity.

Regional

U.S. market only; no broader regional effect.

Global

Limited to Seagate shareholders and analysts.

Counterpoint

What could challenge this read

The sale could be a routine liquidity event unrelated to company outlook; the stock may remain stable.

Key entities

  • company
    Seagate Technology Holdings plc

    Data storage hardware manufacturer, ticker STX.

  • person
    William Mosley

    CEO of Seagate, reporting the insider 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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