William D. Mosley
CEO, Director · Seagate Technology Holdings plc
- 2024
- Oct 2, 2026
- 41
Summary
Latest filing:
William D. Mosley is CEO, Director of Seagate Technology Holdings plc (STX). 41 SEC Form 4 filings on record going back to 2024, most recently on 2 October 2026. Most recent open-market trade: sold $594K of STX on 2 October 2026. Lifetime open-market sales: $289.47M.
Recent transactions
20The latest 20 SEC Form 4 transactions reported by William D. Mosley.
Trading pattern
InsiderAlpha's records for William D. Mosley go back to 2024: 41 primary Form 4 filings, an average of 13.7 per year. 244 recorded transactions carry a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies William D. Mosley files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Ban Seng Teh - $79.52M in STX purchases and sales in the last 12 months
- Gianluca Romano - $71.66M in STX purchases and sales in the last 12 months
- John Christopher Morris - $30.59M in STX purchases and sales in the last 12 months
- James Ci Lee - $12.56M in STX purchases and sales in the last 12 months
- Kian Fatt Chong - $4.36M in STX purchases and sales in the last 12 months
- John Forsyth - $3.80M in CRUS purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is William D. Mosley?
William D. Mosley is a corporate insider, tracked as CEO, Director of Seagate Technology Holdings plc (STX). InsiderAlpha holds 41 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has William D. Mosley submitted recently?
8 primary Form 4 filings in the last 90 days, covering 2 companies.
Has William D. Mosley been buying or selling stock?
Recorded transactions: 0 open-market purchases and 277 open-market sales ($289.47M) across all tracked filings.