10% Owner
10% Owner at Workday, Inc., filing insider transactions between 2026-06-17 and 2026-10-09.
David Arthur Duffield is an American billionaire businessman in the software industry. He is the co-founder and former chairman of PeopleSoft, and co-founder and CEO emeritus of Workday, Inc.. In addition, he is founder and Chairman of Ridgeline, Inc. (via Wikipedia)
David Duffield on Wikipedia ↗| SEC ↗ |
| 2026-10-09 | WDAY | Sale | 14.3K | $186.92 | $2.7M | SEC ↗ |
| 2026-10-09 | WDAY | Sale | 14.2K | $188.19 | $2.7M | SEC ↗ |
| 2026-10-09 | WDAY | Sale | 12.7K | $189.36 | $2.4M | SEC ↗ |
| 2026-10-06 | WDAY | Sale | 46.0K | $186.66 | $8.6M | SEC ↗ |
| 2026-10-06 | WDAY | Sale | 10.3K | $185.86 | $1.9M | SEC ↗ |
| 2026-10-06 | WDAY | Sale | 2,800 | $184.80 | $517K | SEC ↗ |
| 2026-10-06 | WDAY | Sale | 10.6K | $189.39 | $2.0M | SEC ↗ |
| 2026-10-06 | WDAY | Sale | 19.5K | $188.64 | $3.7M | SEC ↗ |
| 2026-10-06 | WDAY | Sale | 10.1K | $187.77 | $1.9M | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 4,600 | $194.03 | $893K | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 5,300 | $183.86 | $974K | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 9,035 | $184.69 | $1.7M | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 14.2K | $185.72 | $2.6M | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 49.0K | $186.55 | $9.1M | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 4,764 | $187.50 | $893K | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 1,809 | $188.34 | $341K | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 3,800 | $190.85 | $725K | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 3,900 | $191.48 | $747K | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 1,500 | $194.77 | $292K | SEC ↗ |
| 2026-10-01 | WDAY | Sale | 600 | $192.26 | $115K | SEC ↗ |
| 2026-09-28 | WDAY | Sale | 3,496 | $183.88 | $643K | SEC ↗ |
| 2026-09-28 | WDAY | Sale | 3,904 | $190.60 | $744K | SEC ↗ |
| 2026-09-28 | WDAY | Sale | 23.1K | $189.84 | $4.4M | SEC ↗ |
| 2026-09-28 | WDAY | Sale | 38.0K | $188.94 | $7.2M | SEC ↗ |
| 2026-09-28 | WDAY | Sale | 23.8K | $188.13 | $4.5M | SEC ↗ |
| 2026-09-28 | WDAY | Sale | 1,100 | $186.80 | $205K | SEC ↗ |
| 2026-09-28 | WDAY | Sale | 1,700 | $185.78 | $316K | SEC ↗ |
| 2026-09-28 | WDAY | Sale | 1,904 | $184.67 | $352K | SEC ↗ |
| 2026-09-28 | WDAY | Sale | 2,000 | $182.67 | $365K | SEC ↗ |
| 2026-09-23 | WDAY | Sale | 1,875 | $193.62 | $363K | SEC ↗ |
| 2026-09-23 | WDAY | Sale | 2,324 | $188.92 | $439K | SEC ↗ |
| 2026-09-23 | WDAY | Sale | 1,776 | $189.69 | $337K | SEC ↗ |
| 2026-09-23 | WDAY | Sale | 4,849 | $190.95 | $926K | SEC ↗ |
| 2026-09-23 | WDAY | Sale | 63.9K | $192.10 | $12.3M | SEC ↗ |
| 2026-09-23 | WDAY | Sale | 24.9K | $192.84 | $4.8M | SEC ↗ |
| 2026-09-18 | WDAY | Sale | 47.2K | $194.91 | $9.2M | SEC ↗ |
| 2026-09-18 | WDAY | Sale | 34.9K | $194.04 | $6.8M | SEC ↗ |
| 2026-09-18 | WDAY | Sale | 12.0K | $195.73 | $2.4M | SEC ↗ |
| 2026-09-15 | WDAY | Sale | 26.2K | $192.73 | $5.0M | SEC ↗ |
| 2026-09-15 | WDAY | Sale | 25.2K | $190.71 | $4.8M | SEC ↗ |
| 2026-09-15 | WDAY | Sale | 17.5K | $191.63 | $3.4M | SEC ↗ |
| 2026-09-15 | WDAY | Sale | 3,868 | $194.39 | $752K | SEC ↗ |
| 2026-09-15 | WDAY | Sale | 23.9K | $193.57 | $4.6M | SEC ↗ |
| 2026-09-10 | WDAY | Sale | 2,493 | $187.75 | $468K | SEC ↗ |
| 2026-09-10 | WDAY | Sale | 27.9K | $184.33 | $5.1M | SEC ↗ |
| 2026-09-10 | WDAY | Sale | 23.6K | $184.98 | $4.4M | SEC ↗ |
| 2026-09-10 | WDAY | Sale | 24.5K | $186.26 | $4.6M | SEC ↗ |
| 2026-09-10 | WDAY | Sale | 22.4K | $187.05 | $4.2M | SEC ↗ |
| 2026-09-04 | WDAY | Sale | 13.7K | $195.81 | $2.7M | SEC ↗ |
| 2026-09-04 | WDAY | Sale | 600 | $204.05 | $122K | SEC ↗ |
| 2026-09-04 | WDAY | Sale | 600 | $201.75 | $121K | SEC ↗ |
| 2026-09-04 | WDAY | Sale | 224 | $200.59 | $45K | SEC ↗ |
| 2026-09-04 | WDAY | Sale | 7,631 | $199.91 | $1.5M | SEC ↗ |
| 2026-09-04 | WDAY | Sale | 30.0K | $198.87 | $6.0M | SEC ↗ |
| 2026-09-04 | WDAY | Sale | 31.6K | $198.11 | $6.3M | SEC ↗ |
| 2026-09-04 | WDAY | Sale | 6,241 | $196.73 | $1.2M | SEC ↗ |
| 2026-09-01 | WDAY | Sale | 4,800 | $200.14 | $961K | SEC ↗ |
| 2026-09-01 | WDAY | Sale | 4,100 | $201.40 | $826K | SEC ↗ |
| 2026-09-01 | WDAY | Sale | 100 | $204.92 | $20K | SEC ↗ |
| 2026-09-01 | WDAY | Sale | 1,900 | $204.28 | $388K | SEC ↗ |
| 2026-09-01 | WDAY | Sale | 6,199 | $203.40 | $1.3M | SEC ↗ |
| 2026-09-01 | WDAY | Sale | 1,901 | $202.40 | $385K | SEC ↗ |
| 2026-09-01 | WDAY | Sale | 4,036 | $197.38 | $797K | SEC ↗ |
| 2026-09-01 | WDAY | Sale | 36.7K | $198.29 | $7.3M | SEC ↗ |
| 2026-09-01 | WDAY | Sale | 35.2K | $199.01 | $7.0M | SEC ↗ |
| 2026-07-09 | WDAY | Sale | 1,800 | $132.07 | $238K | SEC ↗ |
| 2026-07-09 | WDAY | Sale | 1,400 | $130.63 | $183K | SEC ↗ |
| 2026-07-09 | WDAY | Sale | 39.1K | $137.19 | $5.4M | SEC ↗ |
| 2026-07-09 | WDAY | Sale | 20.7K | $138.34 | $2.9M | SEC ↗ |
| 2026-07-09 | WDAY | Sale | 14.3K | $135.48 | $1.9M | SEC ↗ |
| 2026-07-09 | WDAY | Sale | 100 | $138.98 | $14K | SEC ↗ |
| 2026-07-09 | WDAY | Sale | 27.9K | $136.41 | $3.8M | SEC ↗ |
| 2026-07-09 | WDAY | Sale | 500 | $134.01 | $67K | SEC ↗ |
| 2026-07-09 | WDAY | Sale | 1,700 | $133.12 | $226K | SEC ↗ |
| 2026-07-06 | WDAY | Sale | 11.3K | $131.79 | $1.5M | SEC ↗ |
| 2026-07-06 | WDAY | Sale | 100 | $138.30 | $14K | SEC ↗ |
| 2026-07-06 | WDAY | Sale | 43.6K | $137.75 | $6.0M | SEC ↗ |
| 2026-07-06 | WDAY | Sale | 15.9K | $136.90 | $2.2M | SEC ↗ |
| 2026-07-06 | WDAY | Sale | 3,417 | $135.80 | $464K | SEC ↗ |
| 2026-07-06 | WDAY | Sale | 7,098 | $134.65 | $956K | SEC ↗ |
| 2026-07-06 | WDAY | Sale | 2,476 | $133.99 | $332K | SEC ↗ |
| 2026-07-06 | WDAY | Sale | 7,953 | $132.73 | $1.1M | SEC ↗ |
| 2026-07-06 | WDAY | Sale | 13.6K | $130.81 | $1.8M | SEC ↗ |
| 2026-07-06 | WDAY | Sale | 2,106 | $129.82 | $273K | SEC ↗ |
| 2026-06-30 | WDAY | Sale | 6,100 | $120.00 | $732K | SEC ↗ |
| 2026-06-30 | WDAY | Sale | 31.4K | $122.73 | $3.8M | SEC ↗ |
| 2026-06-30 | WDAY | Sale | 53.2K | $122.17 | $6.5M | SEC ↗ |
| 2026-06-30 | WDAY | Sale | 16.9K | $121.06 | $2.0M | SEC ↗ |
| 2026-06-25 | WDAY | Sale | 19.8K | $116.06 | $2.3M | SEC ↗ |
| 2026-06-25 | WDAY | Sale | 30.1K | $114.14 | $3.4M | SEC ↗ |
| 2026-06-25 | WDAY | Sale | 29.0K | $114.98 | $3.3M | SEC ↗ |
| 2026-06-25 | WDAY | Sale | 17.1K | $116.95 | $2.0M | SEC ↗ |
| 2026-06-25 | WDAY | Sale | 9,739 | $118.03 | $1.1M | SEC ↗ |
| 2026-06-25 | WDAY | Sale | 1,800 | $118.76 | $214K | SEC ↗ |
| 2026-06-17 | WDAY | Sale | 17.2K | $125.18 | $2.1M | SEC ↗ |
| 2026-06-17 | WDAY | Sale | 8,100 | $124.15 | $1.0M | SEC ↗ |
| 2026-06-17 | WDAY | Sale | 2,565 | $127.95 | $328K | SEC ↗ |
| 2026-06-17 | WDAY | Sale | 20.3K | $121.96 | $2.5M | SEC ↗ |
| 2026-06-17 | WDAY | Sale | 20.7K | $127.04 | $2.6M | SEC ↗ |
| 2026-06-17 | WDAY | Sale | 11.5K | $123.08 | $1.4M | SEC ↗ |
| 2026-06-17 | WDAY | Sale | 27.2K | $126.34 | $3.4M | SEC ↗ |