DUFFIELD DAVID A — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

DUFFIELD DAVID A has filed 10 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $565.48M.

Profile

DUFFIELD DAVID A

David A. Duffield is an American software entrepreneur and investor best known as the co-founder of PeopleSoft and the founder of Workday, Inc. Duffield led PeopleSoft through its early growth and later sold the company to Oracle in 2005. In 2006, he co-founded Workday with Aneel Bhusri and has been a key figure behind its cloud-based enterprise software strategy. In the latest SEC filing (April 13, 2026) he is listed as a 10% owner of Workday, Inc.

Role10% Owner
Notability92/100
LinksWikipedia

Board memberships

Awards & honors

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-07-13WDAYWorkday, Inc.S — Open-market sale [10b5-1]100$138.98$14K
2026-07-13WDAYWorkday, Inc.S — Open-market sale [10b5-1]20.7K$138.34$2.87M
2026-07-13WDAYWorkday, Inc.S — Open-market sale [10b5-1]39.1K$137.19$5.37M
2026-07-13WDAYWorkday, Inc.S — Open-market sale [10b5-1]27.9K$136.41$3.80M
2026-07-13WDAYWorkday, Inc.S — Open-market sale [10b5-1]14.3K$135.48$1.94M
2026-07-13WDAYWorkday, Inc.S — Open-market sale [10b5-1]500$134.01$67K
2026-07-13WDAYWorkday, Inc.S — Open-market sale [10b5-1]1.7K$133.12$226K
2026-07-13WDAYWorkday, Inc.S — Open-market sale [10b5-1]1.8K$132.07$238K
2026-07-13WDAYWorkday, Inc.S — Open-market sale [10b5-1]1.4K$130.63$183K
2026-07-13WDAYWorkday, Inc.J — Other acquisition / disposition [10b5-1]107.5K$0.00
2026-07-07WDAYWorkday, Inc.S — Open-market sale100$138.30$14K
2026-07-07WDAYWorkday, Inc.S — Open-market sale43.6K$137.75$6.00M
2026-07-07WDAYWorkday, Inc.S — Open-market sale15.9K$136.90$2.17M
2026-07-07WDAYWorkday, Inc.S — Open-market sale3.4K$135.80$464K
2026-07-07WDAYWorkday, Inc.S — Open-market sale7.1K$134.65$956K
2026-07-07WDAYWorkday, Inc.S — Open-market sale2.5K$133.99$332K
2026-07-07WDAYWorkday, Inc.S — Open-market sale8.0K$132.73$1.06M
2026-07-07WDAYWorkday, Inc.S — Open-market sale11.3K$131.79$1.50M
2026-07-07WDAYWorkday, Inc.S — Open-market sale13.6K$130.81$1.77M
2026-07-07WDAYWorkday, Inc.S — Open-market sale2.1K$129.82$273K

Companies — Last 90 Days

Frequently Asked Questions

Who is DUFFIELD DAVID A?

David A. Duffield is an American software entrepreneur and investor best known as the co-founder of PeopleSoft and the founder of Workday, Inc. Duffield led PeopleSoft through its early growth and later sold the company to Oracle in 2005. In 2006, he co-founded Workday with Aneel Bhusri and has been a key figure behind its cloud-based enterprise software strategy. In the latest…

How many SEC Form 4 filings has DUFFIELD DAVID A submitted recently?

10 primary Form 4 filings in the last 90 days, covering 1 company.

Has DUFFIELD DAVID A been buying or selling stock?

Recorded transactions: 0 open-market purchases () and 232 open-market sales ($565.48M) across all tracked filings.

Where can I see all of DUFFIELD DAVID A's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

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