X0306 4 2017-06-29 0 0000769397 AUTODESK INC ADSK 0001188898 NORRINGTON LORRIE M 111 MCINNIS PKWY SAN RAFAEL CA 94903 1 0 0 0 Common Stock 2017-06-29 4 M 0 25000 43.81 A 46492 D Common Stock 2017-06-29 4 S 0 7000 100.9509 D 39492 D Common Stock 2017-06-29 4 S 0 12400 101.7616 D 27092 D Common Stock 2017-06-29 4 S 0 5302 102.5168 D 21790 D Common Stock 2017-06-29 4 S 0 298 103.57 D 21492 D Non-Qualified Stock Options (right to buy) 43.81 2017-06-29 4 M 0 25000 0.00 D 2012-03-24 2018-03-24 Common Stock 25000 25000 D The total securities beneficially owned includes 3,201 shares of unvested Restricted Stock Units. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 3/31/2017. Shares were sold in various amounts from $100.29 to $101.28 inclusive. The price listed here reflects the average weighted price. Shares were sold in various amounts from $101.29 to $102.28 inclusive. The price listed here reflects the average weighted price. Shares were sold in various amounts from $102.29 to $102.93 inclusive. The price listed here reflects the average weighted price. The option vests over a three-year period beginning on 3/24/2011, at the rate of 17,000 shares on the first anniversary, and 16,500 shares on the second and third anniversaries. Andy R. Sewell, Attorney in Fact for Lorrie Norrington 2017-06-30