$STX

MOSLEY WILLIAM D sold $14.0M of STX

MOSLEY WILLIAM D (CEO) sold 23,280 shares of Seagate Technology Holdings plc (STX) at an average of $602.44 ($587.99–$616.66, $14.02M total) across 27 trades on 2026-11-02 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · MOSLEY WILLIAM D
Published Nov 3, 2026, 9:59 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Nov 3, 2026, 10:01 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
$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 transaction provides fresh, material information that could influence short‑term price action.

02

Market read

Insider sell of this magnitude is a primary disclosure that may trigger modest downside pressure.

03

What to watch

The 10b5‑1 plan pre‑arranged execution may not reflect current insider sentiment.

Relevance 6/10Novelty 8/10Timing: post‑market today

Background

Form 4 filing reveals a $14M share sale by Seagate's CEO under a pre‑arranged 10b5‑1 plan.

Company-level read

Ticker impact

$STXBearishMedium confidence
Context

CEO William D. Mosley sold $14.0M of Seagate shares via a 10b5‑1 plan on 2026‑11‑02.

Expected impact

likely downward pressure as investors price in the insider sell

Evidence & confidence

A $14M open‑market sale by the chief executive is material for a mid‑cap and often precedes share weakness.

Market effects

May dampen sentiment in the data‑storage hardware sector.

Primarily affects US equity markets where Seagate trades.

Limited to investors tracking storage‑device stocks.

Counterpoint

The sale could be a routine diversification move unrelated to fundamentals.

Key entities

  • Seagate Technology Holdings plc

    Data‑storage hardware manufacturer listed on NASDAQ under ticker STX.

  • William D. Mosley

    CEO of Seagate, reporting the insider sale.

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.

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