David A. Duffield's Insider Trades & SAST Disclosures

David A. Duffield's most recent trade in Workday Inc - Ordinary Shares - Class A was a trade of 100,780 Class A Common Stock done . Disclosure was reported to the exchange on Sept. 10, 2026.

Stock Client Name Client Category Action Reported to Exchange Quantity Post Transaction Holding Traded % Avg. Price Value Security Type
Workday (Class A)
David A. Duffield Ten Percent Owner 10 Sep 2026 100,780 205,829 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 10 Sep 2026 100,780 36,167,478 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 184.33 per share. 10 Sep 2026 27,883 177,946 (0%) 0% 184.3 5,139,673 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 186.26 per share. 10 Sep 2026 24,465 129,930 (0%) 0% 186.3 4,556,954 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 184.98 per share. 10 Sep 2026 23,551 154,395 (0%) 0% 185.0 4,356,575 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 187.05 per share. 10 Sep 2026 22,388 107,542 (0%) 0% 187.0 4,187,671 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 187.75 per share. 10 Sep 2026 2,493 105,049 (0%) 0% 187.7 468,052 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 04 Sep 2026 90,615 195,664 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 04 Sep 2026 90,615 36,268,258 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 198.11 per share. 04 Sep 2026 31,605 144,152 (0%) 0% 198.1 6,261,251 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 198.87 per share. 04 Sep 2026 30,048 114,104 (0%) 0% 198.9 5,975,529 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 195.81 per share. 04 Sep 2026 13,666 181,998 (0%) 0% 195.8 2,675,904 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 199.91 per share. 04 Sep 2026 7,631 106,473 (0%) 0% 199.9 1,525,509 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 196.73 per share. 04 Sep 2026 6,241 175,757 (0%) 0% 196.7 1,227,764 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 201.75 per share. 04 Sep 2026 600 105,649 (0%) 0% 201.8 121,050 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 204.05 per share. 04 Sep 2026 600 105,049 (0%) 0% 204.1 122,430 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 200.58 per share. 04 Sep 2026 224 106,249 (0%) 0% 200.6 44,931 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 01 Sep 2026 94,961 200,010 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 01 Sep 2026 94,961 36,358,873 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 198.29 per share. 01 Sep 2026 36,729 159,245 (0%) 0% 198.3 7,282,946 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 199.01 per share. 01 Sep 2026 35,196 124,049 (0%) 0% 199.0 7,004,310 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 203.40 per share. 01 Sep 2026 6,199 107,049 (0%) 0% 203.4 1,260,893 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 200.14 per share. 01 Sep 2026 4,800 119,249 (0%) 0% 200.1 960,653 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 201.40 per share. 01 Sep 2026 4,100 115,149 (0%) 0% 201.4 825,747 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 197.38 per share. 01 Sep 2026 4,036 195,974 (0%) 0% 197.4 796,618 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 202.40 per share. 01 Sep 2026 1,901 113,248 (0%) 0% 202.4 384,755 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 204.28 per share. 01 Sep 2026 1,900 105,149 (0%) 0% 204.3 388,130 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 204.92 per share. 01 Sep 2026 100 105,049 (0%) 0% 204.9 20,492 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 09 Jul 2026 107,500 212,549 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 09 Jul 2026 107,500 36,453,834 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 137.19 per share. 09 Jul 2026 39,133 125,859 (0%) 0% 137.2 5,368,778 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 136.41 per share. 09 Jul 2026 27,858 164,992 (0%) 0% 136.4 3,800,143 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 138.34 per share. 09 Jul 2026 20,710 105,149 (0%) 0% 138.3 2,865,048 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 135.48 per share. 09 Jul 2026 14,299 192,850 (0%) 0% 135.5 1,937,261 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 132.07 per share. 09 Jul 2026 1,800 209,349 (0%) 0% 132.1 237,734 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 133.12 per share. 09 Jul 2026 1,700 207,649 (0%) 0% 133.1 226,305 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 130.63 per share. 09 Jul 2026 1,400 211,149 (0%) 0% 130.6 182,884 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 134.01 per share. 09 Jul 2026 500 207,149 (0%) 0% 134.0 67,006 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 138.98 per share. 09 Jul 2026 100 105,049 (0%) 0% 139.0 13,898 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 06 Jul 2026 107,500 212,549 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 06 Jul 2026 107,500 36,561,334 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 137.75 per share. 06 Jul 2026 43,583 105,149 (0%) 0% 137.7 6,003,393 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 136.90 per share. 06 Jul 2026 15,869 148,732 (0%) 0% 136.9 2,172,433 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 130.81 per share. 06 Jul 2026 13,550 196,893 (0%) 0% 130.8 1,772,488 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 131.79 per share. 06 Jul 2026 11,348 185,545 (0%) 0% 131.8 1,495,545 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 132.73 per share. 06 Jul 2026 7,953 177,592 (0%) 0% 132.7 1,055,598 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 134.65 per share. 06 Jul 2026 7,098 168,018 (0%) 0% 134.7 955,773 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 135.80 per share. 06 Jul 2026 3,417 164,601 (0%) 0% 135.8 464,031 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 133.99 per share. 06 Jul 2026 2,476 175,116 (0%) 0% 134.0 331,768 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 129.82 per share. 06 Jul 2026 2,106 210,443 (0%) 0% 129.8 273,409 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 138.30 per share. 06 Jul 2026 100 105,049 (0%) 0% 138.3 13,830 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 30 Jun 2026 107,500 212,549 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 30 Jun 2026 107,500 36,668,834 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 122.17 per share. 30 Jun 2026 53,176 136,403 (0%) 0% 122.2 6,496,767 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 122.73 per share. 30 Jun 2026 31,354 105,049 (0%) 0% 122.7 3,848,070 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 121.06 per share. 30 Jun 2026 16,870 189,579 (0%) 0% 121.1 2,042,329 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 120.00 per share. 30 Jun 2026 6,100 206,449 (0%) 0% 120.0 731,999 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 25 Jun 2026 107,500 36,776,334 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 25 Jun 2026 107,500 212,549 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 114.14 per share. 25 Jun 2026 30,074 182,475 (0%) 0% 114.1 3,432,694 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 114.98 per share. 25 Jun 2026 28,998 153,477 (0%) 0% 115.0 3,334,135 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 116.06 per share. 25 Jun 2026 19,825 133,652 (0%) 0% 116.1 2,300,870 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 116.95 per share. 25 Jun 2026 17,064 116,588 (0%) 0% 116.9 1,995,631 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 118.03 per share. 25 Jun 2026 9,739 106,849 (0%) 0% 118.0 1,149,506 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 118.76 per share. 25 Jun 2026 1,800 105,049 (0%) 0% 118.8 213,770 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 22 Jun 2026 107,500 212,549 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 22 Jun 2026 107,500 36,883,834 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 112.92 per share. 22 Jun 2026 49,759 146,782 (0%) 0% 112.9 5,618,776 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 112.08 per share. 22 Jun 2026 16,008 196,541 (0%) 0% 112.1 1,794,132 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 117.20 per share. 22 Jun 2026 10,587 118,342 (0%) 0% 117.2 1,240,806 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 118.15 per share. 22 Jun 2026 7,602 110,740 (0%) 0% 118.2 898,192 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 114.94 per share. 22 Jun 2026 7,033 132,829 (0%) 0% 114.9 808,405 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 114.15 per share. 22 Jun 2026 6,920 139,862 (0%) 0% 114.1 789,905 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 119.05 per share. 22 Jun 2026 4,151 106,589 (0%) 0% 119.0 494,171 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 116.16 per share. 22 Jun 2026 3,900 128,929 (0%) 0% 116.2 453,011 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 119.84 per share. 22 Jun 2026 1,540 105,049 (0%) 0% 119.8 184,560 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 17 Jun 2026 107,500 212,549 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 17 Jun 2026 107,500 36,991,334 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 126.34 per share. 17 Jun 2026 27,209 128,289 (0%) 0% 126.3 3,437,612 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 127.04 per share. 17 Jun 2026 20,675 107,614 (0%) 0% 127.0 2,626,595 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 121.96 per share. 17 Jun 2026 20,317 192,232 (0%) 0% 122.0 2,477,766 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 125.18 per share. 17 Jun 2026 17,156 155,498 (0%) 0% 125.2 2,147,621 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 123.08 per share. 17 Jun 2026 11,478 180,754 (0%) 0% 123.1 1,412,704 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 124.15 per share. 17 Jun 2026 8,100 172,654 (0%) 0% 124.2 1,005,640 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 127.95 per share. 17 Jun 2026 2,565 105,049 (0%) 0% 127.9 328,183 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 12 Jun 2026 107,500 212,549 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 12 Jun 2026 107,500 37,098,834 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 128.88 per share. 12 Jun 2026 54,009 122,756 (0%) 0% 128.9 6,960,653 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 127.99 per share. 12 Jun 2026 15,860 176,765 (0%) 0% 128.0 2,029,923 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 126.88 per share. 12 Jun 2026 10,724 192,625 (0%) 0% 126.9 1,360,649 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 129.63 per share. 12 Jun 2026 9,470 113,286 (0%) 0% 129.6 1,227,627 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 126.01 per share. 12 Jun 2026 9,200 203,349 (0%) 0% 126.0 1,159,253 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 130.79 per share. 12 Jun 2026 8,237 105,049 (0%) 0% 130.8 1,077,312 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 09 Jun 2026 107,500 212,549 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 09 Jun 2026 107,500 37,206,334 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 138.40 per share. 09 Jun 2026 24,452 145,479 (0%) 0% 138.4 3,384,198 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 140.37 per share. 09 Jun 2026 23,190 105,049 (0%) 0% 140.4 3,255,101 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 137.35 per share. 09 Jun 2026 18,389 169,931 (0%) 0% 137.4 2,525,777 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 139.45 per share. 09 Jun 2026 17,240 128,239 (0%) 0% 139.5 2,404,151 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 136.52 per share. 09 Jun 2026 16,810 188,320 (0%) 0% 136.5 2,294,947 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Sale of securities on an exchange or to another person at price $ 135.54 per share. 09 Jun 2026 7,419 205,130 (0%) 0% 135.5 1,005,541 Class A Common Stock
*All Values are in $ Million
Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc  
Security Type: Share/ Warrants / Convertible Debentures
Data as reported to USA Exchanges
View All The Insider Trades