DUFFIELD DAVID A sold 48.5% of their position (98.97K shares) of WORKDAY, INC. on the open market

Open‑market sale worth $18.66M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 9 sales

DUFFIELD DAVID A

Filed: 9/30/2026ACC: 0000938071-26-000061

InsiderDUFFIELD DAVID ACIK 938071

→

IssuerWORKDAY, INC.CIK 1327811

10% Owner

Since Mar 2026

-98.97K

Net shares

Net seller

$18.66M

Total sold

Open market trades

0B · 9S

Total transactions

98.97K acquired · 197.94K disposed

Non-Derivative Transactions10

Class A Common Stock

Direct

C · Conversion

+98.97K

Price / share

—

Trade value

—

% of position

94.2%

9/28/2026

105.05K→204.02K

Class A Common Stock

Direct

S · Sale

−2K

Price / share

$182.67

Trade value

$365.34K

% of position

1.0%

9/28/2026

204.02K→202.02K

Class A Common Stock

Direct

S · Sale

−3.50K

Price / share

$183.88

Trade value

$642.83K

% of position

1.7%

9/28/2026

202.02K→198.52K

Class A Common Stock

Direct

S · Sale

−1.90K

Price / share

$184.67

Trade value

$351.60K

% of position

1.0%

9/28/2026

198.52K→196.62K

Class A Common Stock

Direct

S · Sale

−1.70K

Price / share

$185.78

Trade value

$315.82K

% of position

0.9%

9/28/2026

196.62K→194.92K

Class A Common Stock

Direct

S · Sale

−1.10K

Price / share

$186.80

Trade value

$205.48K

% of position

0.6%

9/28/2026

194.92K→193.82K

Class A Common Stock

Direct

S · Sale

−23.78K

Price / share

$188.13

Trade value

$4.47M

% of position

12.3%

9/28/2026

193.82K→170.04K

Class A Common Stock

Direct

S · Sale

−37.99K

Price / share

$188.94

Trade value

$7.18M

% of position

22.3%

9/28/2026

170.04K→132.05K

Class A Common Stock

Direct

S · Sale

−23.09K

Price / share

$189.84

Trade value

$4.38M

% of position

17.5%

9/28/2026

132.05K→108.95K

Class A Common Stock

Direct

S · Sale

−3.90K

Price / share

$190.60

Trade value

$744.11K

% of position

3.6%

9/28/2026

108.95K→105.05K

Total

Net shares

+0.00

Net value

-$18.66M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	9/28/2026	C · Conversion	+98.97K	—	—	94.2%	105.05K	204.02K
Class A Common Stock Direct	9/28/2026	S · Sale	−2K	$182.67	$365.34K	1.0%	204.02K	202.02K
Class A Common Stock Direct	9/28/2026	S · Sale	−3.50K	$183.88	$642.83K	1.7%	202.02K	198.52K
Class A Common Stock Direct	9/28/2026	S · Sale	−1.90K	$184.67	$351.60K	1.0%	198.52K	196.62K
Class A Common Stock Direct	9/28/2026	S · Sale	−1.70K	$185.78	$315.82K	0.9%	196.62K	194.92K
Class A Common Stock Direct	9/28/2026	S · Sale	−1.10K	$186.80	$205.48K	0.6%	194.92K	193.82K
Class A Common Stock Direct	9/28/2026	S · Sale	−23.78K	$188.13	$4.47M	12.3%	193.82K	170.04K
Class A Common Stock Direct	9/28/2026	S · Sale	−37.99K	$188.94	$7.18M	22.3%	170.04K	132.05K
Class A Common Stock Direct	9/28/2026	S · Sale	−23.09K	$189.84	$4.38M	17.5%	132.05K	108.95K
Class A Common Stock Direct	9/28/2026	S · Sale	−3.90K	$190.60	$744.11K	3.6%	108.95K	105.05K
Total			+0.00		-$18.66M

Derivative Transactions1

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

98.97K shares

−98.97K

Strike price

Held after

35.78M

Exercisable

—

9/28/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class B Common Stock Direct	Class A Common Stock98.97K shares	9/28/2026	C · Conversion	−98.97K		—	35.78M