DUFFIELD DAVID A sold 50.6% of their position (107.50K shares) of WORKDAY, INC. on the open market

Open‑market sale worth $12.08M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 6 sales

DUFFIELD DAVID A

Filed: 4/13/2026ACC: 0000938071-26-000024

InsiderDUFFIELD DAVID ACIK 938071

→

IssuerWORKDAY, INC.CIK 1327811

10% Owner

Since Mar 2026

-107.50K

Net shares

Net seller

$12.08M

Total sold

Open market trades

0B · 6S

Total transactions

107.50K acquired · 215K disposed

Non-Derivative Transactions7

Class A Common Stock

Direct

C · Conversion

+107.50K

Price / share

—

Trade value

—

% of position

102.3%

4/9/2026

105.05K→212.55K

Class A Common Stock

Direct

S · Sale

−29.39K

Price / share

$111.06

Trade value

$3.26M

% of position

13.8%

4/9/2026

212.55K→183.16K

Class A Common Stock

Direct

S · Sale

−29.70K

Price / share

$111.93

Trade value

$3.32M

% of position

16.2%

4/9/2026

183.16K→153.46K

Class A Common Stock

Direct

S · Sale

−39.61K

Price / share

$112.93

Trade value

$4.47M

% of position

25.8%

4/9/2026

153.46K→113.85K

Class A Common Stock

Direct

S · Sale

−1.90K

Price / share

$113.71

Trade value

$216.05K

% of position

1.7%

4/9/2026

113.85K→111.95K

Class A Common Stock

Direct

S · Sale

−3.20K

Price / share

$115.16

Trade value

$368.52K

% of position

2.9%

4/9/2026

111.95K→108.75K

Class A Common Stock

Direct

S · Sale

−3.70K

Price / share

$116.13

Trade value

$429.67K

% of position

3.4%

4/9/2026

108.75K→105.05K

Total

Net shares

+0.00

Net value

-$12.08M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	4/9/2026	C · Conversion	+107.50K	—	—	102.3%	105.05K	212.55K
Class A Common Stock Direct	4/9/2026	S · Sale	−29.39K	$111.06	$3.26M	13.8%	212.55K	183.16K
Class A Common Stock Direct	4/9/2026	S · Sale	−29.70K	$111.93	$3.32M	16.2%	183.16K	153.46K
Class A Common Stock Direct	4/9/2026	S · Sale	−39.61K	$112.93	$4.47M	25.8%	153.46K	113.85K
Class A Common Stock Direct	4/9/2026	S · Sale	−1.90K	$113.71	$216.05K	1.7%	113.85K	111.95K
Class A Common Stock Direct	4/9/2026	S · Sale	−3.20K	$115.16	$368.52K	2.9%	111.95K	108.75K
Class A Common Stock Direct	4/9/2026	S · Sale	−3.70K	$116.13	$429.67K	3.4%	108.75K	105.05K
Total			+0.00		-$12.08M

Derivative Transactions1

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

107.50K shares

−107.50K

Strike price

Held after

37.53M

Exercisable

—

4/9/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class B Common Stock Direct	Class A Common Stock107.50K shares	4/9/2026	C · Conversion	−107.50K		—	37.53M