David A. Duffield - 15 Sep 2026 Form 4 Insider Report for Workday, Inc. (WDAY)

Reporting relationship: 10%+ Owner
Issuer ticker: WDAY
Reported as of: 15 Sep 2026
Net transaction value: -$18,563,623
SEC form: 4
Accepted by SEC: 17 Sep 2026, 16:24:46 UTC
Prior SEC filing: 14 Sep 2026
Source filing: View source filing
Reporting owner signature: /s/ Juliana Capata, attorney-in-fact

Key filing fact

David A. Duffield filed Form 4 for Workday, Inc. (WDAY) on 17 Sep 2026.

Key facts

This page summarizes David A. Duffield's Form 4 filing for Workday, Inc. (WDAY).
7 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 17 Sep 2026, 16:24.

Change

Previous filing in this sequence was filed on 14 Sep 2026.
Current net transaction value: -$18,563,623.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0000938071 Primary reporting owner

DUFFIELD DAVID A

Relationship: 10%+ Owner
Address: C/O WORKDAY, INC., 6110 STONERIDGE MALL ROAD, PLEASANTON
Signature: /s/ Juliana Capata, attorney-in-fact
Signature date: 17 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WDAY transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares: +96,545
Change %: +92%
Price: $0.000000^*
Shares after: 201,594
Date: 15 Sep 2026
Ownership: Direct
Footnotes: F1

WDAY transaction

Class A Common Stock

Sale

Transaction value: $4,798,760
Shares: -25,163
Change %: -12%
Price: $190.71
Shares after: 176,431
Date: 15 Sep 2026
Ownership: Direct
Footnotes: F1, F2, F3

WDAY transaction

Class A Common Stock

Sale

Transaction value: $3,350,994
Shares: -17,487
Change %: -9.9%
Price: $191.63
Shares after: 158,944
Date: 15 Sep 2026
Ownership: Direct
Footnotes: F1, F2, F4

WDAY transaction

Class A Common Stock

Sale

Transaction value: $5,040,387
Shares: -26,152
Change %: -16%
Price: $192.73
Shares after: 132,792
Date: 15 Sep 2026
Ownership: Direct
Footnotes: F1, F2, F5

WDAY transaction

Class A Common Stock

Sale

Transaction value: $4,621,572
Shares: -23,875
Change %: -18%
Price: $193.57
Shares after: 108,917
Date: 15 Sep 2026
Ownership: Direct
Footnotes: F1, F2, F6

WDAY transaction

Class A Common Stock

Sale

Transaction value: $751,909
Shares: -3,868
Change %: -3.6%
Price: $194.39
Shares after: 105,049
Date: 15 Sep 2026
Ownership: Direct
Footnotes: F1, F2, F7

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

WDAY transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -96,545
Change %: -0.27%
Price: $0.000000^*
Shares after: 36,070,933
Date: 15 Sep 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 96,545
Exercise price
Footnotes: F1, F8, F9

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 9 footnotes

Footnote F1

The reported shares are held by the David A. Duffield Trust dated July 14, 1988, a revocable living trust, of which the Reporting Person is trustee and sole beneficiary.

Footnote F2

This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

Footnote F3

The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $190.15 to $191.1499, inclusive. The Reporting Person undertakes to provide to Workday, Inc., any security holder of Workday, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range(s) set forth in this footnote of this Form 4.

Footnote F4

The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $191.15 to $192.1499, inclusive. The Reporting Person undertakes to provide to Workday, Inc., any security holder of Workday, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range(s) set forth in this footnote of this Form 4.

Footnote F5

The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $192.15 to $193.1499, inclusive. The Reporting Person undertakes to provide to Workday, Inc., any security holder of Workday, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range(s) set forth in this footnote of this Form 4.

Footnote F6

The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $193.15 to $194.1499, inclusive. The Reporting Person undertakes to provide to Workday, Inc., any security holder of Workday, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range(s) set forth in this footnote of this Form 4.

Footnote F7

The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $194.15 to $195.1499, inclusive. The Reporting Person undertakes to provide to Workday, Inc., any security holder of Workday, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range(s) set forth in this footnote of this Form 4.

Footnote F8

All shares of Class A and Class B Common Stock will convert automatically into shares of a single class of Common Stock upon the earliest to occur of the following: (a) upon the election by the holders of a majority of the then outstanding shares of Class B Common Stock, (b) the date when the number of outstanding shares of Class B Common Stock represents less than 9% of all outstanding shares of Class A and Class B Common Stock, (c) October 11, 2032 or (d) nine months after the death of the later to die of David A. Duffield and Aneel Bhusri. The shares of Class A and Class B Common Stock have no expiration date.

Footnote F9

Each share of Class B Common Stock is convertible, at any time at the option of the holder, into one (1) share of Class A Common Stock. In addition, each share of Class B Common Stock will convert automatically into one (1) share of Class A Common Stock upon any transfer, whether or not for value, except for certain permitted transfers described in, and transfers to any "permitted transferee" as defined in, the Issuer's restated certificate of incorporation in effect as of the date hereof. The shares of Class B Common Stock have no expiration date.