DUFFIELD DAVID A sold 48.6% of their position (99.23K shares) of WORKDAY, INC. on the open market

Open‑market sale worth $18.59M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 6 sales

DUFFIELD DAVID A

Filed: 10/7/2026ACC: 0000938071-26-000065

InsiderDUFFIELD DAVID ACIK 938071

→

IssuerWORKDAY, INC.CIK 1327811

10% Owner

Since Mar 2026

-99.23K

Net shares

Net seller

$18.59M

Total sold

Open market trades

0B · 6S

Total transactions

99.23K acquired · 198.46K disposed

Non-Derivative Transactions7

Class A Common Stock

Direct

C · Conversion

+99.23K

Price / share

—

Trade value

—

% of position

94.5%

10/6/2026

105.05K→204.28K

Class A Common Stock

Direct

S · Sale

−2.80K

Price / share

$184.80

Trade value

$517.45K

% of position

1.4%

10/6/2026

204.28K→201.48K

Class A Common Stock

Direct

S · Sale

−10.28K

Price / share

$185.86

Trade value

$1.91M

% of position

5.1%

10/6/2026

201.48K→191.19K

Class A Common Stock

Direct

S · Sale

−45.98K

Price / share

$186.66

Trade value

$8.58M

% of position

24.1%

10/6/2026

191.19K→145.21K

Class A Common Stock

Direct

S · Sale

−10.05K

Price / share

$187.77

Trade value

$1.89M

% of position

6.9%

10/6/2026

145.21K→135.16K

Class A Common Stock

Direct

S · Sale

−19.53K

Price / share

$188.64

Trade value

$3.68M

% of position

14.5%

10/6/2026

135.16K→115.62K

Class A Common Stock

Direct

S · Sale

−10.57K

Price / share

$189.39

Trade value

$2M

% of position

9.1%

10/6/2026

115.62K→105.05K

Total

Net shares

+0.00

Net value

-$18.59M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	10/6/2026	C · Conversion	+99.23K	—	—	94.5%	105.05K	204.28K
Class A Common Stock Direct	10/6/2026	S · Sale	−2.80K	$184.80	$517.45K	1.4%	204.28K	201.48K
Class A Common Stock Direct	10/6/2026	S · Sale	−10.28K	$185.86	$1.91M	5.1%	201.48K	191.19K
Class A Common Stock Direct	10/6/2026	S · Sale	−45.98K	$186.66	$8.58M	24.1%	191.19K	145.21K
Class A Common Stock Direct	10/6/2026	S · Sale	−10.05K	$187.77	$1.89M	6.9%	145.21K	135.16K
Class A Common Stock Direct	10/6/2026	S · Sale	−19.53K	$188.64	$3.68M	14.5%	135.16K	115.62K
Class A Common Stock Direct	10/6/2026	S · Sale	−10.57K	$189.39	$2M	9.1%	115.62K	105.05K
Total			+0.00		-$18.59M

Derivative Transactions1

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

99.23K shares

−99.23K

Strike price

Held after

35.58M

Exercisable

—

10/6/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class B Common Stock Direct	Class A Common Stock99.23K shares	10/6/2026	C · Conversion	−99.23K		—	35.58M