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 82,884 Class B Common Stock done . Disclosure was reported to the exchange on Jan. 8, 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 08 Jan 2026 82,884 38,603,834 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 08 Jan 2026 82,884 187,933 (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 $ 210.43 per share. 08 Jan 2026 28,462 114,232 (0%) 0% 210.4 5,989,370 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 $ 209.68 per share. 08 Jan 2026 27,639 142,694 (0%) 0% 209.7 5,795,384 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 $ 208.42 per share. 08 Jan 2026 9,240 170,333 (0%) 0% 208.4 1,925,800 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 $ 211.10 per share. 08 Jan 2026 9,183 105,049 (0%) 0% 211.1 1,938,566 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 $ 207.66 per share. 08 Jan 2026 8,360 179,573 (0%) 0% 207.7 1,736,077 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 02 Jan 2026 81,479 186,528 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 02 Jan 2026 81,479 38,686,718 - - 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 $ 205.79 per share. 02 Jan 2026 26,512 121,004 (0%) 0% 205.8 5,455,825 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 $ 204.63 per share. 02 Jan 2026 15,339 147,516 (0%) 0% 204.6 3,138,760 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 $ 203.81 per share. 02 Jan 2026 14,862 162,855 (0%) 0% 203.8 3,028,965 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 $ 202.65 per share. 02 Jan 2026 8,811 177,717 (0%) 0% 202.6 1,785,540 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 $ 206.47 per share. 02 Jan 2026 8,010 112,994 (0%) 0% 206.5 1,653,837 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 $ 208.73 per share. 02 Jan 2026 2,712 108,010 (0%) 0% 208.7 566,077 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 $ 207.74 per share. 02 Jan 2026 2,272 110,722 (0%) 0% 207.7 471,985 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 $ 210.70 per share. 02 Jan 2026 1,623 106,099 (0%) 0% 210.7 341,963 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 $ 213.44 per share. 02 Jan 2026 500 105,149 (0%) 0% 213.4 106,721 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 $ 212.24 per share. 02 Jan 2026 450 105,649 (0%) 0% 212.2 95,509 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 $ 209.91 per share. 02 Jan 2026 288 107,722 (0%) 0% 209.9 60,454 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 $ 214.07 per share. 02 Jan 2026 100 105,049 (0%) 0% 214.1 21,407 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 23 Dec 2025 80,279 185,328 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 23 Dec 2025 80,279 38,768,197 - - 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 $ 215.29 per share. 23 Dec 2025 50,857 109,549 (0%) 0% 215.3 10,949,085 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 $ 214.32 per share. 23 Dec 2025 24,922 160,406 (0%) 0% 214.3 5,341,253 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 $ 216.01 per share. 23 Dec 2025 3,800 105,749 (0%) 0% 216.0 820,838 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 $ 216.88 per share. 23 Dec 2025 700 105,049 (0%) 0% 216.9 151,816 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 16 Dec 2025 81,434 186,483 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 16 Dec 2025 81,434 38,848,476 - - 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 $ 216.04 per share. 16 Dec 2025 55,253 114,349 (0%) 0% 216.0 11,936,748 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 $ 215.17 per share. 16 Dec 2025 16,881 169,602 (0%) 0% 215.2 3,632,258 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 $ 217.04 per share. 16 Dec 2025 8,000 106,349 (0%) 0% 217.0 1,736,306 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 $ 217.71 per share. 16 Dec 2025 1,300 105,049 (0%) 0% 217.7 283,023 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 02 Dec 2025 2,320,000 39,144,910 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Gift of securities by or to the insider at price $ 0.00 per share. 02 Dec 2025 2,320,000 320,049 (0%) 1% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 02 Dec 2025 2,320,000 2,425,049 (1%) 1% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner Gift of securities by or to the insider at price $ 0.00 per share. 02 Dec 2025 215,000 105,049 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 02 Dec 2025 215,000 2,640,049 (1%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 02 Dec 2025 215,000 38,929,910 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 02 Dec 2025 82,025 41,464,910 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 02 Dec 2025 82,025 187,074 (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 $ 211.57 per share. 02 Dec 2025 31,752 148,315 (0%) 0% 211.6 6,717,631 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 $ 212.63 per share. 02 Dec 2025 28,555 119,760 (0%) 0% 212.6 6,071,593 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 $ 213.35 per share. 02 Dec 2025 14,511 105,249 (0%) 0% 213.3 3,095,871 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 $ 210.77 per share. 02 Dec 2025 7,007 180,067 (0%) 0% 210.8 1,476,887 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 $ 214.09 per share. 02 Dec 2025 200 105,049 (0%) 0% 214.1 42,818 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 08 Oct 2025 75,053 178,050 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 08 Oct 2025 75,053 41,546,935 - - 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 $ 237.27 per share. 08 Oct 2025 30,595 112,932 (0%) 0% 237.3 7,259,202 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 $ 235.18 per share. 08 Oct 2025 12,978 152,183 (0%) 0% 235.2 3,052,166 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 $ 238.13 per share. 08 Oct 2025 9,935 102,997 (0%) 0% 238.1 2,365,800 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 $ 234.26 per share. 08 Oct 2025 9,489 165,161 (0%) 0% 234.3 2,222,896 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 $ 236.30 per share. 08 Oct 2025 8,656 143,527 (0%) 0% 236.3 2,045,434 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 $ 233.21 per share. 08 Oct 2025 3,400 174,650 (0%) 0% 233.2 792,903 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 01 Oct 2025 72,696 175,693 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 01 Oct 2025 72,696 41,621,988 - - 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 $ 232.70 per share. 01 Oct 2025 21,484 136,588 (0%) 0% 232.7 4,999,254 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 $ 232.12 per share. 01 Oct 2025 17,621 158,072 (0%) 0% 232.1 4,090,137 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 $ 240.74 per share. 01 Oct 2025 7,351 103,597 (0%) 0% 240.7 1,769,688 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 $ 239.99 per share. 01 Oct 2025 6,066 110,948 (0%) 0% 240.0 1,455,791 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 $ 236.93 per share. 01 Oct 2025 5,500 124,497 (0%) 0% 236.9 1,303,135 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 $ 238.75 per share. 01 Oct 2025 5,273 117,014 (0%) 0% 238.7 1,258,907 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 $ 233.53 per share. 01 Oct 2025 4,491 132,097 (0%) 0% 233.5 1,048,805 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 $ 237.76 per share. 01 Oct 2025 2,210 122,287 (0%) 0% 237.8 525,441 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 $ 234.97 per share. 01 Oct 2025 1,100 130,997 (0%) 0% 235.0 258,471 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 $ 235.74 per share. 01 Oct 2025 1,000 129,997 (0%) 0% 235.7 235,735 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 $ 241.52 per share. 01 Oct 2025 600 102,997 (0%) 0% 241.5 144,913 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 23 Sep 2025 72,118 41,694,684 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 23 Sep 2025 72,118 175,115 (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 $ 240.27 per share. 23 Sep 2025 26,608 148,507 (0%) 0% 240.3 6,393,176 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 $ 241.13 per share. 23 Sep 2025 15,405 133,102 (0%) 0% 241.1 3,714,637 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 $ 243.21 per share. 23 Sep 2025 13,006 109,098 (0%) 0% 243.2 3,163,183 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 $ 242.05 per share. 23 Sep 2025 10,998 122,104 (0%) 0% 242.0 2,662,030 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 $ 243.93 per share. 23 Sep 2025 5,901 103,197 (0%) 0% 243.9 1,439,444 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 $ 244.66 per share. 23 Sep 2025 200 102,997 (0%) 0% 244.7 48,932 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 15 Sep 2025 78,564 41,766,802 - - Class B Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 15 Sep 2025 78,564 181,561 (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 $ 218.99 per share. 15 Sep 2025 30,941 150,620 (0%) 0% 219.0 6,775,915 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 $ 220.10 per share. 15 Sep 2025 19,758 130,862 (0%) 0% 220.1 4,348,789 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 $ 220.78 per share. 15 Sep 2025 19,560 111,302 (0%) 0% 220.8 4,318,476 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 $ 221.00 per share. 15 Sep 2025 4,502 25,498 (0%) 0% 221.0 994,959 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 $ 222.90 per share. 15 Sep 2025 4,323 16,969 (0%) 0% 222.9 963,602 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 $ 222.10 per share. 15 Sep 2025 4,206 21,292 (0%) 0% 222.1 934,139 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 $ 221.96 per share. 15 Sep 2025 3,803 107,499 (0%) 0% 222.0 844,128 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 $ 223.78 per share. 15 Sep 2025 2,500 102,997 (0%) 0% 223.8 559,447 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 $ 223.20 per share. 15 Sep 2025 2,002 105,497 (0%) 0% 223.2 446,848 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 $ 223.88 per share. 15 Sep 2025 1,969 15,000 (0%) 0% 223.9 440,816 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 02 Sep 2025 75,817 178,814 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 02 Sep 2025 75,817 41,845,366 - - 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 $ 228.28 per share. 02 Sep 2025 40,825 114,597 (0%) 0% 228.3 9,319,604 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 $ 227.50 per share. 02 Sep 2025 23,392 155,422 (0%) 0% 227.5 5,321,591 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 $ 229.06 per share. 02 Sep 2025 11,600 102,997 (0%) 0% 229.1 2,657,072 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 08 Jul 2025 72,551 175,548 (0%) 0% 0 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 08 Jul 2025 72,551 41,921,183 - - 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 $ 240.53 per share. 08 Jul 2025 24,379 110,954 (0%) 0% 240.5 5,863,859 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 $ 239.81 per share. 08 Jul 2025 13,864 135,333 (0%) 0% 239.8 3,324,675 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 $ 237.76 per share. 08 Jul 2025 13,638 161,910 (0%) 0% 237.8 3,242,544 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 $ 238.36 per share. 08 Jul 2025 12,713 149,197 (0%) 0% 238.4 3,030,239 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 $ 241.57 per share. 08 Jul 2025 7,157 103,797 (0%) 0% 241.6 1,728,940 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 $ 242.32 per share. 08 Jul 2025 800 102,997 (0%) 0% 242.3 193,854 Class A Common Stock
Workday (Class A)
David A. Duffield Ten Percent Owner 01 Jul 2025 72,917 175,914 (0%) 0% 0 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
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