WM
William D Mosley (Chief Executive Officer) filed 23 Form 4 reports in the trailing twelve months (0 purchases, 23 sales), most often in Seagate Technology Holdings plc (STX). The largest single filing was $75.6M of STX (97,889 sh × $772.14, as filed), executed Sep 15. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
23
0 buys · 23 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$290.6M
shares × price, as filed
Last traded
Nov 2
Filed Nov 3
Median ADV $3.5B across their filed names
Open performance→Volume by month
Buys $0
Sells $349.7M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Technology
23 filings
Sector per market data · by filing · past 12 months
Most traded names
STXRecent filings
STXSALE
Seagate Technology Holdings plc
View filing →
$22.2M29,600 sh across 15 lots
Exec May 20
Filed May 21 · 5:30 PM ET STXSALE Seagate Technology Holdings plc View filing → $8.1M
19,200 sh across 15 lots
Exec Apr 1
Filed Apr 2 · 5:30 PM ET STXSALE Seagate Technology Holdings plc View filing → $10.0M
24,584 sh × $406.77
Exec Mar 19
Filed Mar 23 · 5:30 PM ET STXSALE Seagate Technology Holdings plc View filing → $7.5M
19,500 sh across 18 lots
Exec Mar 2
Filed Mar 3 · 5:30 PM ET STXSALE Seagate Technology Holdings plc View filing → $8.3M
19,300 sh across 11 lots
Exec Feb 2
Filed Feb 3 · 5:30 PM ET STXSALE Seagate Technology Holdings plc View filing → $5.7M
20,000 sh across 9 lots
Exec Jan 2
Filed Jan 6 · 5:30 PM ET STXSALE Seagate Technology Holdings plc View filing → $5.4M
19,900 sh across 7 lots
Exec Dec 1 2025
Filed Dec 2 2025 · 5:30 PM ET STXSALE Seagate Technology Holdings plc View filing → $5.2M
19,700 sh across 12 lots
Exec Nov 3 2025
Filed Nov 5 2025 · 5:30 PM ET More filings →