X0303 4 2010-03-22 0 0001024795 SUN HYDRAULICS CORP SNHY 0001234878 KOSKI CHRISTINE L 1 0 1 0 0001234877 KOSKI BEVERLY 0 0 1 0 0001234879 KOSKI FAMILY LP 0 0 1 0 0001234880 KOSKI ROBERT C 0 0 1 0 0001234881 KOSKI THOMAS L 0 0 1 0 Common Stock 2010-03-22 4 S 0 585 27.15 D 3759062 D Common Stock 2010-03-22 4 S 0 846 27.16 D 3758216 D Common Stock 2010-03-22 4 S 0 500 27.17 D 3757716 D Common Stock 2010-03-22 4 S 0 200 27.171 D 3757516 D Common Stock 2010-03-22 4 S 0 600 27.18 D 3756916 D Common Stock 2010-03-22 4 S 0 400 27.19 D 3756516 D Common Stock 2010-03-22 4 S 0 415 27.2 D 3756101 D Common Stock 2010-03-22 4 S 0 600 27.21 D 3755501 D Common Stock 2010-03-22 4 S 0 854 27.28 D 3754647 D Common Stock 2010-03-23 4 S 0 1100 27.4 D 3753547 D Common Stock 2010-03-23 4 S 0 200 27.43 D 3753347 D Common Stock 2010-03-23 4 S 0 200 27.44 D 3753147 D Common Stock 2010-03-23 4 S 0 1100 27.45 D 3752047 D Common Stock 2010-03-23 4 S 0 200 27.47 D 3751847 D Common Stock 2010-03-23 4 S 0 200 27.51 D 3751647 D Common Stock 2010-03-23 4 S 0 700 27.53 D 3750947 D Common Stock 2010-03-23 4 S 0 200 27.54 D 3750747 D Common Stock 2010-03-23 4 S 0 788 27.55 D 3749959 D Common Stock 2010-03-23 4 S 0 200 27.56 D 3749759 D Common Stock 2010-03-23 4 S 0 200 27.57 D 3749559 D Common Stock 2010-03-23 4 S 0 3983 27.58 D 3745576 D Common Stock 2010-03-23 4 S 0 4229 27.59 D 3741347 D Common Stock 2010-03-23 4 S 0 195 27.6 D 3741152 D Common Stock 2010-03-23 4 S 0 100 27.61 D 3741052 D Common Stock 2010-03-23 4 S 0 100 27.66 D 3740952 D Common Stock 2010-03-23 4 S 0 5 27.67 D 3740947 D Common Stock 208940 D Common Stock 295969.29 D Common Stock 60000 D Common Stock 1200 I BY KOSKI MANAGEMENT, INC. Shares owned directly by Koski Family Limited Partnership. Shares owned indirectly by Beverly Koski, Christine L. Koski, Robert C. Koski and Thomas L. Koski, each of whom is a general partner of the partnership or the controlling person of a corporate general partner of the partnership. Shares owned directly by Christine L. Koski. Shares owned directly by Beverly Koski. Shares owned directly by Thomas L. Koski. Shares owned indirectly by Beverly Koski. Gregory C. Yadley, as Attorney-in-Fact for CHRISTINE L. KOSKI, BEVERLY KOSKI, KOSKI FAMILY LIMITED PARTNERSHIP, ROBERT C. KOSKI AND THOMAS L. KOSKI 2010-03-24