MOSLEY WILLIAM D sold $292K of STX
MOSLEY WILLIAM D (CEO) sold 320 shares of Seagate Technology Holdings plc (STX) at $912.22 ($0.29M total) on 2026-06-01 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The disclosure confirms an executive sale and the existence of a pre-arranged 10b5-1 plan, which generally dampens interpretive impact on near-term valuation.
Market read
Traders may note the sale for sentiment/positioning, but the 10b5-1 framing suggests limited incremental fundamental information.
What to watch
Compare this sale to prior insider activity (frequency/size) and whether other officers/directors filed contemporaneous transactions; one Form 4 alone is weak evidence.
Background
This is an SEC Form 4 insider transaction disclosure for Seagate Technology Holdings plc (STX).
Ticker impact
Seagate CEO William D. Mosley sold 320 shares in an open-market transaction under a pre-arranged 10b5-1 plan, disclosed via Form 4.
Likely limited near-term price impact; treat as low-signal unless accompanied by unusual volume or other new fundamentals.
The filing provides a specific sale size and price, but 10b5-1 plans are designed to mitigate timing/insider-information concerns, so the incremental information is modest.
Market effects
Minimal—single-company insider transaction with no stated operational or guidance change.
None indicated.
None indicated.
Counterpoint
Even with a 10b5-1 plan, repeated insider selling can coincide with internal risk management or diversification; monitor for clustering of sales across executives.
Key entities
- issuerSeagate Technology Holdings plc
Subject of the Form 4 insider transaction disclosure.
- insiderMOSLEY WILLIAM D
CEO/officer/director who sold shares under a 10b5-1 plan.


