X0202 4 2006-06-12 0 0001024795 SUN HYDRAULICS CORP SNHY 0001048128 KOSKI ROBERT E 1500 WEST UNIVERSITY PARKWAY SARASOTA FL 34243 1 0 1 0 0001234877 KOSKI BEVERLY 0 0 1 0 0001234879 KOSKI FAMILY LP 0 0 1 0 0001234878 KOSKI CHRISTINE L 1 0 1 0 0001234880 KOSKI ROBERT C 0 0 1 0 0001234881 KOSKI THOMAS L 0 0 1 0 Common Stock 2006-06-12 4 A 0 85 17.68 A 97401 D Common Stock 3070309 D Common Stock 100000 D Common Stock 141216 D Common Stock 359.649 I BY ESOP TRUST Shares owned directly and solely by Christine L. Koski. Shares owned directly by Koski Family Limited Partnership. Shares owned indirectly by Robert E. Koski, 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 Robert E. Koski and indirectly by Beverly Koski, Robert E. Koski's spouse. Shares owned directly by Beverly Koski and indirectly by Robert E. Koski, Beverly Koski's spouse. Reflects allocations of shares to Robert E. Koski under the Sun Hydraulics Corporation Employee Stock Ownership Plan. Gregory C. Yadley, as Attorney-in-Fact for ROBERT E. KOSKI, BEVERLY KOSKI, KOSKI FAMILY LIMITED PARTNERSHIP, CHRISTINE L. KOSKI, ROBERT C. KOSKI AND THOMAS L. KOSKI 2006-06-14