Workday 10% holder plans $18.8M stock sale

Workday, Inc. (WDAY) has a notice of proposed sale of securities filed under Rule 144 by the David A. Duffield Trust U/T/A 7/14/88, identified as a 10% stockholder.

Rhea-AI Filing Summary

Workday, Inc. (WDAY) has a notice of proposed sale of securities filed under Rule 144 by the David A. Duffield Trust U/T/A 7/14/88, identified as a 10% stockholder. The trust plans, through Morgan Stanley Smith Barney LLC, to sell up to 94,961 shares of Workday common stock, with an aggregate market value of 18,750,049.45, with an approximate sale date of 09/01/2026 on NASDAQ. The shares were originally acquired in a private placement on 12/27/2007 for cash. The notice also lists multiple recent 10b5-1 plan sales, each for 107,500 common shares on various dates in June and July 2026, by the same trust.

Key Figures

Shares to be sold under Rule 144: 94,961 shares Aggregate market value of shares to be sold: 18,750,049.45 Shares outstanding: 196,000,000 shares +3 more

6 metrics

Shares to be sold under Rule 144 94,961 shares Proposed sale of Workday common stock by David A. Duffield Trust

Aggregate market value of shares to be sold 18,750,049.45 Market value of the 94,961 shares proposed for sale

Shares outstanding 196,000,000 shares Workday common shares outstanding as reported in the notice

Recent 10b5-1 sale size 107,500 shares Each 10b5-1 sale of common stock listed for June–July 2026

Sale on 07/09/2026 14699055.50 Proceeds reported for 107,500 shares sold on 07/09/2026

Sale on 06/04/2026 16077366.75 Proceeds reported for 107,500 shares sold on 06/04/2026

Key Terms

Rule 144, 10b5-1, Private Placement, Form 144

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

10b5-1 regulatory

"10b5-1 Sales for DAVID A DUFFIELD TRUST U/T/A 7/14/88"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Private Placement financial

"Common | 12/27/2007 | Private Placement | Issuer"

A private placement is a sale of securities directly to a selected group of investors, typically institutions or accredited investors, instead of through a public offering. It lets a company raise money faster and with fewer regulatory steps; for existing shareholders it matters because the newly issued shares, often sold at a discount, increase the share count and can dilute their ownership.

Form 144 regulatory

"144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing disclose for Workday, Inc. (WDAY)?

It discloses that the David A. Duffield Trust U/T/A 7/14/88, a 10% stockholder, has filed to sell up to 94,961 shares of Workday common stock under Rule 144 through Morgan Stanley Smith Barney LLC.

How many Workday (WDAY) shares may be sold under this Form 144?

The filing states a proposed sale of up to 94,961 shares of Workday common stock, with an aggregate market value of 18,750,049.45, to be sold on NASDAQ.

Who is selling Workday (WDAY) shares in this Form 144 notice?

The seller is the David A. Duffield Trust U/T/A 7/14/88, identified as a 10% stockholder of Workday, Inc. The sales are to be executed through Morgan Stanley Smith Barney LLC.

What is the approximate sale date for the Workday (WDAY) shares in this Form 144?

The notice indicates an approximate sale date of 09/01/2026 for the proposed sale of up to 94,961 Workday common shares on NASDAQ.

What prior 10b5-1 sales does the Workday (WDAY) Form 144 list?

It lists multiple 10b5-1 plan sales by the trust, each for 107,500 shares of common stock, on dates including 06/04/2026, 06/09/2026, 06/12/2026, 06/17/2026, 06/22/2026, 06/25/2026, 06/30/2026, 07/06/2026, and 07/09/2026.

How many Workday (WDAY) shares are outstanding according to this Form 144?

The filing reports 196,000,000 shares of Workday common stock outstanding, as context for the proposed Rule 144 sale by the David A. Duffield Trust.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/01/2026 - 04:40 PM EDT Accepted by SEC EDGAR 09/01/2026 - 04:39 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0000938071
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	WORKDAY, INC.
SEC File Number	001-35680
Address of Issuer	6110 Stoneridge Mall Road Pleasanton CALIFORNIA 94588
Phone	9259519000
Name of Person for Whose Account the Securities are To Be Sold	DAVID A. DUFFIELD TRUST U/T/A 7/14/88
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	10% Stockholder

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	94961	18750049.45	196000000	09/01/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	12/27/2007	Private Placement	Issuer			94961	12/27/2007	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for DAVID A DUFFIELD TRUST U/T/A 7/14/88 6110 Stoneridge Mall Road Pleasanton CA 94588	Common	07/09/2026	107500	14699055.50
10b5-1 Sales for DAVID A DUFFIELD TRUST U/T/A 7/14/88 6110 Stoneridge Mall Road Pleasanton CA 94588	Common	07/06/2026	107500	14538267.75
10b5-1 Sales for DAVID A DUFFIELD TRUST U/T/A 7/14/88 6110 Stoneridge Mall Road Pleasanton CA 94588	Common	06/30/2026	107500	13119171.00
10b5-1 Sales for DAVID A DUFFIELD TRUST U/T/A 7/14/88 6110 Stoneridge Mall Road Pleasanton CA 94588	Common	06/25/2026	107500	12426602.25
10b5-1 Sales for DAVID A DUFFIELD TRUST U/T/A 7/14/88 6110 Stoneridge Mall Road Pleasanton CA 94588	Common	06/22/2026	107500	12281961.00
10b5-1 Sales for DAVID A DUFFIELD TRUST U/T/A 7/14/88 6110 Stoneridge Mall Road Pleasanton CA 94588	Common	06/17/2026	107500	13436124.00
10b5-1 Sales for DAVID A DUFFIELD TRUST U/T/A 7/14/88 6110 Stoneridge Mall Road Pleasanton CA 94588	Common	06/12/2026	107500	13815416.25
10b5-1 Sales for DAVID A DUFFIELD TRUST U/T/A 7/14/88 6110 Stoneridge Mall Road Pleasanton CA 94588	Common	06/09/2026	107500	14869711.75
10b5-1 Sales for DAVID A DUFFIELD TRUST U/T/A 7/14/88 6110 Stoneridge Mall Road Pleasanton CA 94588	Common	06/04/2026	107500	16077366.75

144: Remarks and Signature

Remarks
Date of Notice	09/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/02/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ David A. Duffield
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)