InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (89 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
89
T+90 hit rate
41%
T+90 mean return
-6.3%
Across 46 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the complete record of transactions filed by DUFFIELD DAVID A, Co-Founder and CEO Emeritus. Officer active across 1 company, notably Workday, Inc.. In total, 184 disclosures have been published. Split: 0 buy · 89 sells. Total volume traded: €123.5m. History available since 1 June 2021. The latest transaction was filed on 6 July 2026 (C). Regulator: SEC (Form 4). All data is free.
Declarations184 total
107,500 shares0Class A Common StockSEC:0000938071-26-000044:0
2,106 shares@ US$129.8239Class A Common StockSEC:0000938071-26-000044:1
13,550 shares@ US$130.8109Class A Common StockSEC:0000938071-26-000044:2
11,348 shares@ US$131.7893Class A Common StockSEC:0000938071-26-000044:3
7,953 shares@ US$132.7295Class A Common StockSEC:0000938071-26-000044:4
2,476 shares@ US$133.9937Class A Common StockSEC:0000938071-26-000044:5
7,098 shares@ US$134.6538Class A Common StockSEC:0000938071-26-000044:6
3,417 shares@ US$135.8007Class A Common StockSEC:0000938071-26-000044:7
15,869 shares@ US$136.8979Class A Common StockSEC:0000938071-26-000044:8
43,583 shares@ US$137.7462Class A Common StockSEC:0000938071-26-000044:9
100 shares@ US$138.30Class A Common StockSEC:0000938071-26-000044:10
107,500 sharesClass A Common StockSEC:0000938071-26-000042:0
6,100 sharesClass A Common StockSEC:0000938071-26-000042:1
16,870 sharesClass A Common StockSEC:0000938071-26-000042:2
53,176 sharesClass A Common StockSEC:0000938071-26-000042:3
31,354 sharesClass A Common StockSEC:0000938071-26-000042:4
107,500 sharesClass A Common StockSEC:0000938071-26-000040:0
30,074 sharesClass A Common StockSEC:0000938071-26-000040:1
28,998 sharesClass A Common StockSEC:0000938071-26-000040:2
19,825 sharesClass A Common StockSEC:0000938071-26-000040:3
17,064 sharesClass A Common StockSEC:0000938071-26-000040:4
9,739 sharesClass A Common StockSEC:0000938071-26-000040:5
1,800 sharesClass A Common StockSEC:0000938071-26-000040:6
107,500 sharesClass A Common StockSEC:0000938071-26-000038:0
16,008 sharesClass A Common StockSEC:0000938071-26-000038:1
25 of 184 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. 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. 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.
