DUFFIELD DAVID A sold 48.7% of their position (99.83K shares) of WORKDAY, INC. on the open market

Open‑market sale worth $18.72M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 6 sales

DUFFIELD DAVID A

Filed: 10/13/2026ACC: 0000938071-26-000067

InsiderDUFFIELD DAVID ACIK 938071

→

IssuerWORKDAY, INC.CIK 1327811

10% Owner

Since Mar 2026

-99.83K

Net shares

Net seller

$18.72M

Total sold

Open market trades

0B · 6S

Total transactions

99.83K acquired · 199.67K disposed

Non-Derivative Transactions7

Class A Common Stock

Direct

C · Conversion

+99.83K

Price / share

—

Trade value

—

% of position

95.0%

10/9/2026

105.05K→204.88K

Class A Common Stock

Direct

S · Sale

−46.61K

Price / share

$186.36

Trade value

$8.69M

% of position

22.7%

10/9/2026

204.88K→158.28K

Class A Common Stock

Direct

S · Sale

−14.29K

Price / share

$186.92

Trade value

$2.67M

% of position

9.0%

10/9/2026

158.28K→143.98K

Class A Common Stock

Direct

S · Sale

−14.23K

Price / share

$188.19

Trade value

$2.68M

% of position

9.9%

10/9/2026

143.98K→129.75K

Class A Common Stock

Direct

S · Sale

−12.73K

Price / share

$189.36

Trade value

$2.41M

% of position

9.8%

10/9/2026

129.75K→117.02K

Class A Common Stock

Direct

S · Sale

−10.47K

Price / share

$190.13

Trade value

$1.99M

% of position

8.9%

10/9/2026

117.02K→106.55K

Class A Common Stock

Direct

S · Sale

−1.50K

Price / share

$190.96

Trade value

$286.83K

% of position

1.4%

10/9/2026

106.55K→105.05K

Total

Net shares

+0.00

Net value

-$18.72M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	10/9/2026	C · Conversion	+99.83K	—	—	95.0%	105.05K	204.88K
Class A Common Stock Direct	10/9/2026	S · Sale	−46.61K	$186.36	$8.69M	22.7%	204.88K	158.28K
Class A Common Stock Direct	10/9/2026	S · Sale	−14.29K	$186.92	$2.67M	9.0%	158.28K	143.98K
Class A Common Stock Direct	10/9/2026	S · Sale	−14.23K	$188.19	$2.68M	9.9%	143.98K	129.75K
Class A Common Stock Direct	10/9/2026	S · Sale	−12.73K	$189.36	$2.41M	9.8%	129.75K	117.02K
Class A Common Stock Direct	10/9/2026	S · Sale	−10.47K	$190.13	$1.99M	8.9%	117.02K	106.55K
Class A Common Stock Direct	10/9/2026	S · Sale	−1.50K	$190.96	$286.83K	1.4%	106.55K	105.05K
Total			+0.00		-$18.72M

Derivative Transactions1

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

99.83K shares

−99.83K

Strike price

Held after

35.48M

Exercisable

—

10/9/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class B Common Stock Direct	Class A Common Stock99.83K shares	10/9/2026	C · Conversion	−99.83K		—	35.48M