David A Duffield

10% owner · Workday

David A Duffield (10% owner) filed 35 Form 4 reports in the trailing twelve months (0 purchases, 35 sales, 1 filed past the two-business-day deadline), most often in Workday, Inc. (WDAY). The largest single filing was $19.1M of WDAY (99,613 sh across 6 lots, as filed), executed Sep 23. Data as of Nov 7 2026.

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Return, 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

0 buys · 35 sells · 1 late

Median delay

–

measured on stock purchases

Volume, ttmiDollar value disclosed in the trailing twelve months

$556.5M

shares × price, as filed

Last traded

Oct 9

Filed Oct 13

Median ADV $812.6M across their filed names

Open performance→

Volume by month

Buys $0 Sells $972.0M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Technology 35 filings

Sector per market data · by filing · past 12 months

Most traded names

WDAY

Workday, Inc. WDAY · 0 buys · 59 sells 59 filings

Recent filings

WDAYSALE Workday, Inc. View filing → $18.7M
99,835 sh across 6 lots
Exec Oct 9
Filed Oct 13 · 6:03 PM ET WDAYSALE Workday, Inc. View filing → $18.6M
99,228 sh across 6 lots
Exec Oct 6
Filed Oct 7 · 4:21 PM ET WDAYSALE Workday, Inc. View filing → $18.4M
98,446 sh across 11 lots
Exec Oct 1
Filed Oct 5 · 4:23 PM ET WDAYSALE Workday, Inc. View filing → $18.7M
98,971 sh across 9 lots
Exec Sep 28
Filed Sep 30 · 4:19 PM ET WDAYSALE Workday, Inc. View filing → $19.1M
99,613 sh across 6 lots
Exec Sep 23
Filed Sep 24 · 8:40 PM ET WDAYSALE Workday, Inc. View filing → $18.3M
94,089 sh across 3 lots
Exec Sep 18
Filed Sep 21 · 7:09 PM ET WDAYSALE Workday, Inc. View filing → $18.6M
96,545 sh across 5 lots
Exec Sep 15
Filed Sep 17 · 4:24 PM ET WDAYSALE Workday, Inc. View filing → $18.7M
100,780 sh across 5 lots
Exec Sep 10
Filed Sep 14 · 4:42 PM ET More filings →