Duffield David A insider trades
Duffield David A has filed 98 Form 4s with the SEC that we hold, all for Workday, Inc. (WDAY), as 10% owner. Across all of them we count 0 purchases worth $0 and 650 sales worth $2.1B reported on Form 4. In the last 12 months: 0 purchases ($0) and 204 sales ($519.3M). The largest single trade was a sale of 163,468 shares of Workday, Inc. worth $44.6M, dated 2021-09-01. Of 53 sales filed since we began reading the 10b5-1 checkbox, 53 (100%) were marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2021-07-01 and the latest 2026-10-07.
Workday, Inc. (WDAY)
10% owner · 98 filings · 650 purchases and sales
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-07-01 | S, sale reported on Form 4 | 34,684 | $8.2M | 2021-07-01 |
| 2021-07-01 | S, sale reported on Form 4 | 21,546 | $5.1M | 2021-07-01 |
| 2021-07-01 | S, sale reported on Form 4 | 5,704 | $1.4M | 2021-07-01 |
| 2021-07-01 | S, sale reported on Form 4 | 26,101 | $6.2M | 2021-07-01 |
| 2021-07-01 | S, sale reported on Form 4 | 112,014 | $26.2M | 2021-07-01 |
| 2021-07-01 | S, sale reported on Form 4 | 118,773 | $27.9M | 2021-07-01 |
| 2021-09-01 | S, sale reported on Form 4 | 9,951 | $2.7M | 2021-09-02 |
| 2021-09-01 | S, sale reported on Form 4 | 163,468 | $44.6M | 2021-09-02 |
| 2021-09-01 | S, sale reported on Form 4 | 14,268 | $3.9M | 2021-09-02 |
| 2021-09-01 | S, sale reported on Form 4 | 4,010 | $1.1M | 2021-09-02 |
| 2021-09-01 | S, sale reported on Form 4 | 82,868 | $22.7M | 2021-09-02 |
| 2021-09-15 | S, sale reported on Form 4 | 56,493 | $15.2M | 2021-09-17 |
| 2021-09-15 | S, sale reported on Form 4 | 5,600 | $1.5M | 2021-09-17 |
| 2021-09-15 | S, sale reported on Form 4 | 40,861 | $11.0M | 2021-09-17 |
| 2021-09-15 | S, sale reported on Form 4 | 5,946 | $1.6M | 2021-09-17 |
| 2021-10-01 | S, sale reported on Form 4 | 97,506 | $24.6M | 2021-10-05 |
| 2021-10-01 | S, sale reported on Form 4 | 58,028 | $14.7M | 2021-10-05 |
| 2021-10-01 | S, sale reported on Form 4 | 46,086 | $11.6M | 2021-10-05 |
| 2021-10-01 | S, sale reported on Form 4 | 26,633 | $6.7M | 2021-10-05 |
| 2021-10-01 | S, sale reported on Form 4 | 5,122 | $1.3M | 2021-10-05 |
| 2021-10-01 | S, sale reported on Form 4 | 23,043 | $5.7M | 2021-10-05 |
| 2021-10-01 | S, sale reported on Form 4 | 42,270 | $10.5M | 2021-10-05 |
| 2021-12-01 | S, sale reported on Form 4 | 729 | $199.9K | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 15,314 | $4.2M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 32,206 | $8.8M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 34,310 | $9.3M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 29,547 | $8.0M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 22,619 | $6.1M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 43,093 | $11.2M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 16,766 | $4.4M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 8,277 | $2.2M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 10,634 | $2.8M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 24,994 | $6.6M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 24,512 | $6.5M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 13,184 | $3.5M | 2021-12-03 |
| 2021-12-01 | S, sale reported on Form 4 | 4,592 | $1.2M | 2021-12-03 |
| 2021-12-15 | S, sale reported on Form 4 | 8,712 | $2.3M | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 13,494 | $3.6M | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 8,783 | $2.4M | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 11,376 | $3.1M | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 16,674 | $4.5M | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 3,209 | $899.1K | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 3,100 | $851.8K | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 1,300 | $358.9K | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 3,161 | $877.4K | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 5,606 | $1.6M | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 26,081 | $7.3M | 2021-12-17 |
| 2021-12-15 | S, sale reported on Form 4 | 7,404 | $2.0M | 2021-12-17 |
| 2022-01-04 | S, sale reported on Form 4 | 3,100 | $817.5K | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 29,684 | $7.3M | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 41,154 | $10.2M | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 72,580 | $18.0M | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 68,588 | $17.1M | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 10,590 | $2.7M | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 5,850 | $1.5M | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 4,350 | $1.1M | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 10,311 | $2.6M | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 7,400 | $1.9M | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 8,491 | $2.2M | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 1,200 | $309.4K | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 3,100 | $805.6K | 2022-01-06 |
| 2022-01-04 | S, sale reported on Form 4 | 34,590 | $8.5M | 2022-01-06 |
| 2022-03-02 | S, sale reported on Form 4 | 3,100 | $748.7K | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 15,624 | $3.8M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 14,498 | $3.5M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 7,396 | $1.8M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 11,253 | $2.7M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 7,086 | $1.7M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 6,493 | $1.6M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 24,019 | $6.0M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 65,219 | $16.2M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 12,493 | $3.1M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 7,959 | $2.0M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 21,550 | $5.3M | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 2,600 | $633.9K | 2022-03-04 |
| 2022-03-02 | S, sale reported on Form 4 | 5,086 | $1.2M | 2022-03-04 |
| 2022-03-15 | S, sale reported on Form 4 | 13,281 | $2.9M | 2022-03-17 |
| 2022-03-15 | S, sale reported on Form 4 | 1,412 | $313.9K | 2022-03-17 |
| 2022-03-15 | S, sale reported on Form 4 | 31,576 | $7.0M | 2022-03-17 |
| 2022-03-15 | S, sale reported on Form 4 | 15,664 | $3.4M | 2022-03-17 |
| 2022-03-15 | S, sale reported on Form 4 | 31,273 | $6.8M | 2022-03-17 |
| 2022-03-15 | S, sale reported on Form 4 | 9,294 | $2.0M | 2022-03-17 |
| 2022-04-01 | S, sale reported on Form 4 | 25,221 | $6.0M | 2022-04-05 |
| 2022-04-01 | S, sale reported on Form 4 | 60,897 | $14.4M | 2022-04-05 |
| 2022-04-01 | S, sale reported on Form 4 | 35,141 | $8.4M | 2022-04-05 |
| 2022-04-01 | S, sale reported on Form 4 | 25,977 | $6.2M | 2022-04-05 |
| 2022-04-01 | S, sale reported on Form 4 | 37,360 | $9.0M | 2022-04-05 |
| 2022-04-01 | S, sale reported on Form 4 | 21,330 | $5.1M | 2022-04-05 |
| 2022-04-01 | S, sale reported on Form 4 | 3,731 | $902.4K | 2022-04-05 |
| 2022-06-15 | S, sale reported on Form 4 | 17,920 | $2.5M | 2022-06-16 |
| 2022-06-15 | S, sale reported on Form 4 | 3,200 | $449.3K | 2022-06-16 |
| 2022-06-15 | S, sale reported on Form 4 | 46,380 | $6.6M | 2022-06-16 |
| 2022-06-15 | S, sale reported on Form 4 | 26,370 | $3.8M | 2022-06-16 |
| 2022-06-15 | S, sale reported on Form 4 | 6,123 | $884.2K | 2022-06-16 |
| 2022-06-15 | S, sale reported on Form 4 | 2,507 | $363.5K | 2022-06-16 |
| 2022-09-15 | S, sale reported on Form 4 | 19,834 | $3.1M | 2022-09-19 |
| 2022-09-15 | S, sale reported on Form 4 | 35,723 | $5.5M | 2022-09-19 |
| 2022-09-15 | S, sale reported on Form 4 | 19,912 | $3.1M | 2022-09-19 |
| 2022-09-15 | S, sale reported on Form 4 | 1,100 | $176.4K | 2022-09-19 |
| 2022-09-15 | S, sale reported on Form 4 | 11,489 | $1.8M | 2022-09-19 |
Newest 100 of 650
Source
Counted from the Form 4 filings this reporting owner (SEC CIK 938071) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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