InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (12 ops.)
Discover the complete record of transactions filed by DUFFIELD DAVID A, Co-Founder and CEO Emeritus. Officer active across 1 companies, notably Workday, Inc.. In total, 76 disclosures have been published. Total volume traded: €16.9m. The latest transaction was disclosed on 9 April 2026 — C. Regulator: SEC (Form 4). The full history is free.
Declarations76 total
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000024·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000024:0·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000022·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000022:0·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000020·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000020:0·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000018·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000018:0·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000016·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000016:0·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000014·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000014:0·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000012·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000012:0·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000010·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000010:0·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000008·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000008:0·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000006:0·
0107,500 shares0
Class A Common Stock
SEC:0000938071-26-000006·
082,884 shares0
Class A Common Stock
SEC:0000938071-26-000004·
082,884 shares0
Class A Common Stock
SEC:0000938071-26-000004:0·
081,479 shares0
Class A Common Stock
SEC:0000938071-26-000002·
081,479 shares0
Class A Common Stock
SEC:0000938071-26-000002:0·
080,279 shares0
Class A Common Stock
SEC:0000938071-25-000019·
25 of 76 declarations
About DUFFIELD DAVID A
David A. Duffield, widely known as Dave Duffield, is a leading U.S. enterprise software executive and the co-founder of Workday, Inc., where he holds the title of CEO Emeritus. His career has been closely tied to the growth of business application software, HR systems, and cloud-based enterprise platforms. Before Workday, he founded PeopleSoft in 1987 and served as both Chief Executive Officer and Chairman of the Board. PeopleSoft grew into one of the world’s major ERP software companies before being acquired in 2005. ([workday.com](https://www.workday.com/en-gb/company/about-workday/leadership/dave-duffield.html?utm_source=openai)) Throughout his career, Duffield has been associated with several companies he launched, including PeopleSoft, Integral Systems, Business Software, and Information Associates. He began his professional path at IBM as a marketing representative and systems engineer. His leadership style is often described as visionary and strongly focused on customer experience and company culture. At Workday, he played a central role in leadership and governance during the company’s formative years, including executive and board responsibilities. ([workday.com](https://www.workday.com/en-gb/company/about-workday/leadership/dave-duffield.html?utm_source=openai)) His most notable achievements include co-founding Workday in 2005 after Oracle’s acquisition of PeopleSoft, and helping build Workday into a major cloud software provider for finance, HR, and higher education. He is also recognized for his philanthropic work, especially his support for Cornell University and Maddie’s Fund. Overall, his career reflects deep expertise in founding, scaling, and governing large software businesses over multiple decades. ([workday.com](https://www.workday.com/en-gb/company/about-workday/leadership/dave-duffield.html?utm_source=openai))
