X0306 4 2012-09-10 0000719866 ARCTIC CAT INC ACAT 0001171707 TWOMEY CHRISTOPHER A 505 HIGHWAY 169 NORTH SUITE 1000 PLYMOUTH MN 55441 1 0 0 0 Common Stock 2012-09-10 4 M 0 52511 10.79 A 108646 D Common Stock 2012-09-10 4 F 0 12413 45.6466 D 96233 D Common Stock 2012-09-10 4 F 0 16039 45.6466 D 80194 D Common Stock 2012-09-10 4 S 0 24059 45.65 D 56135 D Common Stock 2012-09-11 4 M 0 18319 17.78 A 74454 D Common Stock 2012-09-11 4 M 0 436 10.79 A 74890 D Common Stock 2012-09-11 4 F 0 7205 45.2093 D 67685 D Common Stock 2012-09-11 4 F 0 104 45.2093 D 67581 D Common Stock 2012-09-11 4 F 0 4446 45.2093 D 63135 D Common Stock 2012-09-11 4 F 0 133 45.2093 D 63002 D Common Stock 2012-09-11 4 S 0 6868 45.21 D 56134 D Stock Option (Right to Buy) 10.79 2012-09-10 4 M 0 52511 0 D 2020-04-01 Common Stock 52511 45860 D Stock Option (Right to Buy) 17.78 2012-09-11 4 M 0 18319 0 D 2017-08-08 Common Stock 18319 111681 D Stock Option (Right to Buy) 10.79 2012-09-11 4 M 0 436 0 D 2020-04-01 Common Stock 436 45424 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.12 to $45.95 inclusive. The reporting person undertakes to provide Arctic Cat Inc., any security holder of Arctic Cat Inc. or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.00 to $45.71 inclusive. The reporting person undertakes to provide Arctic Cat Inc., any security holder of Arctic Cat Inc. or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Fully vested. The original grant of 136,000 stock options vest in three equal annual installments beginning 4/1/2011. /s/ Scott J. Dorfman as Attorney-in-Fact for Christopher A. Twomey pursuant to Power of Attorney previously filed. 2012-09-12