X0306 4/A 2016-09-01 2016-09-06 0 0001327811 Workday, Inc. WDAY 0001294600 Shaughnessy James P C/O WORKDAY, INC. 6230 STONERIDGE MALL ROAD PLEASANTON CA 94588 0 1 0 0 SVP, General Counsel & Secty Class A Common Stock 2016-09-01 4 M 0 5875 3.70 A 75411 D Stock Option (right to buy) 3.70 2016-09-01 4 M 0 5875 3.70 A 2021-08-29 Class A Common Stock 5875 7625 D This amendment is being filed to report an option exercise that was inadvertently omitted from the Form 4 filed on September 6, 2016. The underlying shares were sold on the same day as the option exercise pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 8, 2016. Includes 60,238 restricted stock units (RSUs) that entitle the Reporting Person to receive one share of Class A Common Stock per unit upon settlement, from original grants consisting of (i) 29,814 RSUs which vested or will vest in eight (8) quarterly installments beginning 11/15/2015; and (ii) 27,895 RSUs with a grant date of 04/15/2014, 27,895 RSUs with a grant date of 04/15/2015 and 13,948 RSUs with a grant date of 04/15/2016 each of which vested or will vest as to 25% of the underlying shares on the one-year anniversary of grant and quarterly thereafter. All grants are subject to the Reporting Person's continued employment with Workday on the applicable vesting dates. The stock option grant was issued under the Issuer's 2005 Stock Option Plan and vested or will vest as follows: 20% of the total number of shares vested on August 15, 2012 when the Reporting Person completed 12 months of continuous service, and 5% of the total number of shares vested or will vest as the Reporting Person completes each 3-month period of continuous service thereafter. This option grant is exercisable in full or in part at any time, but the unvested portion is subject to the Issuer's right to repurchase the shares at the original exercise price in the event of termination of the Reporting Person's service for any reason. /s/ Melanie Vinson, attorney-in-fact 2016-10-04