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DUFFIELD DAVID A

Disclosed activity across 1 company

Tapewire entity
1786
SEC CIK
0000938071

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Workday, Inc.WDAY · Entity 178510% ownerOctober 09, 2026October 13, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Workday, Inc.

Report date October 09, 2026 · Filed October 13, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect105,049 Last balance in matching sequence After 2026-10-09 transaction · row 7 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
7 source rows

Row 1 · 2026-10-09 · Conversion · Acquired 99,835 · Balance 204,884

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.

Row 2 · 2026-10-09 · Sale · Disposed 46,607 · Balance 158,277

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.

F3: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $185.695 to $186.6949, 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.

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.

Row 3 · 2026-10-09 · Sale · Disposed 14,294 · Balance 143,983

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.

F4: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $186.70 to $187.6999, 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.

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.

Row 4 · 2026-10-09 · Sale · Disposed 14,228 · Balance 129,755

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.

F5: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $187.70 to $188.6999, 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.

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.

Row 5 · 2026-10-09 · Sale · Disposed 12,732 · Balance 117,023

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.

F6: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $188.70 to $189.6999, 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.

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.

Row 6 · 2026-10-09 · Sale · Disposed 10,472 · Balance 106,551

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.

F7: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $189.70 to $190.6999, 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.

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.

Row 7 · 2026-10-09 · Sale · Disposed 1,502 · Balance 105,049

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.

F8: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $190.70 to $191.6999, 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.

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.

Class B Common StockSEC Table II · derivative / convertible securityDirect35,480,751 Reported balance After 2026-10-09 transaction · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · 2026-10-09 · Conversion · Disposed 99,835 · Balance 35,480,751

F9: 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.

F10: 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.

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.

Filing footnotes · ownership attribution and instrument terms

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.

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.

F3: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $185.695 to $186.6949, 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.

F4: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $186.70 to $187.6999, 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.

F5: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $187.70 to $188.6999, 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.

F6: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $188.70 to $189.6999, 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.

F7: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $189.70 to $190.6999, 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.

F8: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $190.70 to $191.6999, 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.

F9: 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.

F10: 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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
October 09, 2026 Filed Oct 13, 2026 22:03 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass B Common Stock · Derivative 99,835 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000067 · wk-form4_1791929007.xml · derivative · entry 8

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,480,751

Underlying: Class A Common Stock · 99,835 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F9 · derivative.exercise_price: 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.

F10 · derivative.exercise_price: 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.

F9 · derivative.exercise_date: 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.

F10 · derivative.exercise_date: 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.

F9 · derivative.expiration_date: 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.

F10 · derivative.expiration_date: 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.

F1 · ownership.direct: 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.

Read SEC document
October 09, 2026 Filed Oct 13, 2026 22:03 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 1,502 $190.96 $286,825.37
Disclosure

SEC source: 0000938071-26-000067 · wk-form4_1791929007.xml · nonDerivative · entry 7

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,049

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F8 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $190.70 to $191.6999, 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.

F1 · ownership.direct: 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.

Read SEC document
October 09, 2026 Filed Oct 13, 2026 22:03 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 10,472 $190.13 $1,991,086.39
Disclosure

SEC source: 0000938071-26-000067 · wk-form4_1791929007.xml · nonDerivative · entry 6

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 106,551

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F7 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $189.70 to $190.6999, 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.

F1 · ownership.direct: 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.

Read SEC document
October 09, 2026 Filed Oct 13, 2026 22:03 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 12,732 $189.36 $2,410,973.54
Disclosure

SEC source: 0000938071-26-000067 · wk-form4_1791929007.xml · nonDerivative · entry 5

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,023

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F6 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $188.70 to $189.6999, 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.

F1 · ownership.direct: 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.

Read SEC document
October 09, 2026 Filed Oct 13, 2026 22:03 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 14,228 $188.19 $2,677,594.35
Disclosure

SEC source: 0000938071-26-000067 · wk-form4_1791929007.xml · nonDerivative · entry 4

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 129,755

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F5 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $187.70 to $188.6999, 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.

F1 · ownership.direct: 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.

Read SEC document
October 09, 2026 Filed Oct 13, 2026 22:03 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 14,294 $186.92 $2,671,764.44
Disclosure

SEC source: 0000938071-26-000067 · wk-form4_1791929007.xml · nonDerivative · entry 3

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 143,983

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F4 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $186.70 to $187.6999, 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.

F1 · ownership.direct: 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.

Read SEC document
October 09, 2026 Filed Oct 13, 2026 22:03 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 46,607 $186.36 $8,685,731.79
Disclosure

SEC source: 0000938071-26-000067 · wk-form4_1791929007.xml · nonDerivative · entry 2

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 158,277

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $185.695 to $186.6949, 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.

F1 · ownership.direct: 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.

Read SEC document
October 09, 2026 Filed Oct 13, 2026 22:03 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass A Common Stock 99,835 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000067 · wk-form4_1791929007.xml · nonDerivative · entry 1

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 204,884

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.direct: 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.

Read SEC document
October 06, 2026 Filed Oct 7, 2026 20:21 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass B Common Stock · Derivative 99,228 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000065 · wk-form4_1791404470.xml · derivative · entry 8

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,580,586

Underlying: Class A Common Stock · 99,228 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F9 · derivative.exercise_price: 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.

F10 · derivative.exercise_price: 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.

F9 · derivative.exercise_date: 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.

F10 · derivative.exercise_date: 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.

F9 · derivative.expiration_date: 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.

F10 · derivative.expiration_date: 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.

F1 · ownership.direct: 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.

Read SEC document
October 06, 2026 Filed Oct 7, 2026 20:21 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 10,572 $189.39 $2,002,261.74
Disclosure

SEC source: 0000938071-26-000065 · wk-form4_1791404470.xml · nonDerivative · entry 7

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,049

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F8 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $189.18 to $190.1799, 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.

F1 · ownership.direct: 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.

Read SEC document
October 06, 2026 Filed Oct 7, 2026 20:21 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 19,534 $188.64 $3,684,967.99
Disclosure

SEC source: 0000938071-26-000065 · wk-form4_1791404470.xml · nonDerivative · entry 6

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 115,621

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F7 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $188.18 to $189.1799, 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.

F1 · ownership.direct: 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.

Read SEC document
October 06, 2026 Filed Oct 7, 2026 20:21 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 10,054 $187.77 $1,887,802.38
Disclosure

SEC source: 0000938071-26-000065 · wk-form4_1791404470.xml · nonDerivative · entry 5

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 135,155

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F6 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $187.18 to $188.1799, 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.

F1 · ownership.direct: 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.

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October 06, 2026 Filed Oct 7, 2026 20:21 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 45,984 $186.66 $8,583,244.68
Disclosure

SEC source: 0000938071-26-000065 · wk-form4_1791404470.xml · nonDerivative · entry 4

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 145,209

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F5 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $186.18 to $187.1799, 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.

F1 · ownership.direct: 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.

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October 06, 2026 Filed Oct 7, 2026 20:21 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 10,284 $185.86 $1,911,388.35
Disclosure

SEC source: 0000938071-26-000065 · wk-form4_1791404470.xml · nonDerivative · entry 3

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 191,193

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F4 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $185.18 to $186.1799, 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.

F2 · ownership.direct: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

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October 06, 2026 Filed Oct 7, 2026 20:21 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 2,800 $184.80 $517,450.08
Disclosure

SEC source: 0000938071-26-000065 · wk-form4_1791404470.xml · nonDerivative · entry 2

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 201,477

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $184.12 to $185.1199, 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.

F1 · ownership.direct: 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.

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October 06, 2026 Filed Oct 7, 2026 20:21 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass A Common Stock 99,228 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000065 · wk-form4_1791404470.xml · nonDerivative · entry 1

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 204,277

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.direct: 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.

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October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass B Common Stock · Derivative 98,446 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · derivative · entry 13

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,679,814

Underlying: Class A Common Stock · 98,446 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F14 · derivative.exercise_price: 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.

F15 · derivative.exercise_price: 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.

F14 · derivative.exercise_date: 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.

F15 · derivative.exercise_date: 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.

F14 · derivative.expiration_date: 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.

F15 · derivative.expiration_date: 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 1,500 $194.77 $292,148.55
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 12

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,049

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F13 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $194.565 to $195.5649, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 4,600 $194.03 $892,533.40
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 11

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 106,549

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F12 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $193.56 to $194.5599, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 600 $192.26 $115,354.02
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 10

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 111,149

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F11 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $192.24 to $193.2399, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 3,900 $191.48 $746,780.19
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 9

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 111,749

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F10 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $191.17 to $192.1699, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 3,800 $190.85 $725,222.40
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 8

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 115,649

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F9 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $190.16 to $191.1599, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 1,809 $188.34 $340,708.33
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 7

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,449

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F8 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $188.13 to $189.1299, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 4,764 $187.50 $893,229.99
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 6

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 121,258

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F7 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $187.12 to $188.1199, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 48,972 $186.55 $9,135,746.19
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 5

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 126,022

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F6 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $186.12 to $187.1199, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 14,166 $185.72 $2,630,967.60
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 4

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 174,994

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F5 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $185.12 to $186.1199, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 9,035 $184.69 $1,668,647.05
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 3

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 189,160

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F4 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $184.12 to $185.1199, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 5,300 $183.86 $974,482.91
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 2

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 198,195

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025

F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $183.12 to $184.1199, 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.

F1 · ownership.direct: 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.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 20:23 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass A Common Stock 98,446 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000063 · wk-form4_1791231793.xml · nonDerivative · entry 1

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 203,495

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass B Common Stock · Derivative 98,971 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · derivative · entry 11

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,778,260

Underlying: Class A Common Stock · 98,971 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F12 · derivative.exercise_price: 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.

F13 · derivative.exercise_price: 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.

F12 · derivative.exercise_date: 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.

F13 · derivative.exercise_date: 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.

F12 · derivative.expiration_date: 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.

F13 · derivative.expiration_date: 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.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 3,904 $190.60 $744,114.50
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · nonDerivative · entry 10

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,049

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F11 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $190.43 to $191.4299, 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.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 23,095 $189.84 $4,384,287.82
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · nonDerivative · entry 9

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 108,953

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F10 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $189.43 to $190.4299, 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.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 37,993 $188.94 $7,178,306.24
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · nonDerivative · entry 8

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 132,048

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F9 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $188.43 to $189.4299, 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.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 23,779 $188.13 $4,473,529.00
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · nonDerivative · entry 7

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 170,041

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F8 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $187.43 to $188.4299, 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.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 1,100 $186.80 $205,477.03
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · nonDerivative · entry 6

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 193,820

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F7 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $186.39 to $187.3899, 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.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 1,700 $185.78 $315,824.47
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · nonDerivative · entry 5

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 194,920

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F6 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $185.33 to $186.3299, 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.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 1,904 $184.67 $351,604.25
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · nonDerivative · entry 4

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 196,620

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F5 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $184.31 to $185.3099, 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.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 3,496 $183.88 $642,827.35
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · nonDerivative · entry 3

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 198,524

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F4 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $183.24 to $184.2399, 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.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 2,000 $182.67 $365,336.00
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · nonDerivative · entry 2

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 202,020

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $182.05 to $183.0499, 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.

F1 · ownership.direct: 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.

Read SEC document
September 28, 2026 Filed Oct 1, 2026 00:19 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass A Common Stock 98,971 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000061 · wk-form4_1790799541.xml · nonDerivative · entry 1

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 204,020

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.direct: 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.

Read SEC document
September 23, 2026 Filed Sep 25, 2026 00:40 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass B Common Stock · Derivative 99,613 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000059 · wk-form4_1790296832.xml · derivative · entry 8

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,877,231

Underlying: Class A Common Stock · 99,613 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F9 · derivative.exercise_price: 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.

F10 · derivative.exercise_price: 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.

F9 · derivative.exercise_date: 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.

F10 · derivative.exercise_date: 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.

F9 · derivative.expiration_date: 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.

F10 · derivative.expiration_date: 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.

F1 · ownership.direct: 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.

Read SEC document
September 23, 2026 Filed Sep 25, 2026 00:40 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 1,875 $193.62 $363,039.38
Disclosure

SEC source: 0000938071-26-000059 · wk-form4_1790296832.xml · nonDerivative · entry 7

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,049

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F8 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $193.49 to $194.4899, 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.

F1 · ownership.direct: 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.

Read SEC document
September 23, 2026 Filed Sep 25, 2026 00:40 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 24,934 $192.84 $4,808,282.53
Disclosure

SEC source: 0000938071-26-000059 · wk-form4_1790296832.xml · nonDerivative · entry 6

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 106,924

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F7 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $192.48 to $193.4799, 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.

F1 · ownership.direct: 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.

Read SEC document
September 23, 2026 Filed Sep 25, 2026 00:40 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 63,855 $192.10 $12,266,475.26
Disclosure

SEC source: 0000938071-26-000059 · wk-form4_1790296832.xml · nonDerivative · entry 5

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 131,858

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F6 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $191.48 to $192.4799, 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.

F1 · ownership.direct: 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.

Read SEC document
September 23, 2026 Filed Sep 25, 2026 00:40 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 4,849 $190.95 $925,914.13
Disclosure

SEC source: 0000938071-26-000059 · wk-form4_1790296832.xml · nonDerivative · entry 4

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 195,713

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F5 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $190.4650 to $191.4649, 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.

F1 · ownership.direct: 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.

Read SEC document
September 23, 2026 Filed Sep 25, 2026 00:40 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 1,776 $189.69 $336,890.51
Disclosure

SEC source: 0000938071-26-000059 · wk-form4_1790296832.xml · nonDerivative · entry 3

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 200,562

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F4 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $189.42 to $190.4199, 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.

F1 · ownership.direct: 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.

Read SEC document
September 23, 2026 Filed Sep 25, 2026 00:40 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 2,324 $188.92 $439,039.16
Disclosure

SEC source: 0000938071-26-000059 · wk-form4_1790296832.xml · nonDerivative · entry 2

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 202,338

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $188.42 to $189.4199, 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.

F1 · ownership.direct: 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.

Read SEC document
September 23, 2026 Filed Sep 25, 2026 00:40 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass A Common Stock 99,613 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000059 · wk-form4_1790296832.xml · nonDerivative · entry 1

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 204,662

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.direct: 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.

Read SEC document
September 18, 2026 Filed Sep 21, 2026 23:09 UTC Workday, Inc. WDAY · Entity 1785 ConversionClass B Common Stock · Derivative 94,089 $0.00 $0.00
Disclosure

SEC source: 0000938071-26-000057 · wk-form4_1790032162.xml · derivative · entry 5

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,976,844

Underlying: Class A Common Stock · 94,089 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: 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.

F7 · derivative.exercise_price: 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.

F6 · derivative.exercise_date: 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.

F7 · derivative.exercise_date: 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.

F6 · derivative.expiration_date: 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.

F7 · derivative.expiration_date: 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.

F1 · ownership.direct: 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.

Read SEC document
September 18, 2026 Filed Sep 21, 2026 23:09 UTC Workday, Inc. WDAY · Entity 1785 SaleClass A Common Stock 12,029 $195.73 $2,354,471.05
Disclosure

SEC source: 0000938071-26-000057 · wk-form4_1790032162.xml · nonDerivative · entry 4

DUFFIELD DAVID A · CIK 0000938071 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,049

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the David A. Duffield Trust dated December 2, 2025.

F5 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices within the range of $195.46 to $196.4599, 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.

F1 · ownership.direct: 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.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.