DD
Insider
David A Duffield
10% ownerDavid A Duffield (10% owner) filed 32 Form 4 reports in the trailing twelve months (0 purchases, 32 sales, 1 filed past the two-business-day deadline), most often in Workday, Inc. (WDAY). The largest single filing was $18.9M of WDAY (94,861 sh across 8 lots, as filed), executed Sep 1.
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
32
0 buys · 32 sells · 1 late
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$497.8M
shares × price, as filed
Last traded
Sep 18
Filed yesterday
Median ADV $812.6M across their filed names
Open performance→Volume by month
Buys $0
Sells $953.8M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Technology
33 filings
Sector per market data · by filing · past 12 months
Most traded names
WDAYRecent filings
WDAYSALE
Workday, Inc.
View filing →
$14.4M107,500 sh across 4 lots
Exec Mar 2
Filed Mar 4 · 5:30 PM ET WDAYSALE Workday, Inc. View filing → $17.4M
82,884 sh across 5 lots
Exec Jan 8
Filed Jan 9 · 5:30 PM ET WDAYSALE Workday, Inc. View filing → $16.5M
80,641 sh across 9 lots
Exec Jan 2
Filed Jan 6 · 5:30 PM ET WDAYSALE Workday, Inc. View filing → $17.3M
80,279 sh across 4 lots
Exec Dec 23 2025
Filed Dec 29 2025 · 5:30 PM ET †