SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3) SUN HYDRAULICS CORPORATION - -------------------------------------------------------------------------------- (Name of Issuer) COMMON STOCK - -------------------------------------------------------------------------------- (Title of Class of Securities) 866942 10 5 - -------------------------------------------------------------------------------- (CUSIP Number) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) * The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act, but shall be subject to all other provisions of the Act (however, see the Notes). CUSIP NO. 866942 10 5 13G Page 2 of 8 - -------------------------------------------------------------------------------- 1) Names of Reporting Persons/ I.R.S. Identification Nos. of Above Persons (Entities Only) Robert S. Ferrell ------------------------------------------------------------------------------ 2) Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ] ------------------------------------------------------------------------------ 3) SEC Use Only ------------------------------------------------------------------------------ 4) Citizenship or Place of Organization U.S. ------------------------------------------------------------------------------ Number of (5) Sole Voting Power Shares Beneficially (6) Shared Voting Power Owned by 323,537 Each (7) Sole Dispositive Power Reporting Person (8) Shared Dispositive Power With 323,537 ------------------------------------------------------------------------------ 9) Aggregate Amount Beneficially Owned by Each Reporting Person 323,537 ------------------------------------------------------------------------------ 10) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] (See Instructions) ------------------------------------------------------------------------------ 11) Percent of Class Represented by Amount in Row (9) 5.07% ------------------------------------------------------------------------------ 12) Type of Reporting Person (See Instructions) IN ------------------------------------------------------------------------------ CUSIP NO. 866942 10 5 13G Page 3 of 8 - -------------------------------------------------------------------------------- 1) Names of Reporting Persons/ I.R.S. Identification Nos. of Above Persons (Entities Only) Ann R. Ferrell ------------------------------------------------------------------------------ 2) Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ] ------------------------------------------------------------------------------ 3) SEC Use Only ------------------------------------------------------------------------------ 4) Citizenship or Place of Organization U.S. ------------------------------------------------------------------------------ Number of (5) Sole Voting Power Shares Beneficially (6) Shared Voting Power Owned by 323,537 Each (7) Sole Dispositive Power Reporting Person (8) Shared Dispositive Power With 323,537 ------------------------------------------------------------------------------ 9) Aggregate Amount Beneficially Owned by Each Reporting Person 323,537 ------------------------------------------------------------------------------ 10) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] (See Instructions) ------------------------------------------------------------------------------ 11) Percent of Class Represented by Amount in Row (9) 5.07% ------------------------------------------------------------------------------ 12) Type of Reporting Person (See Instructions) IN ------------------------------------------------------------------------------ CUSIP NO. 866942 10 5 13G Page 4 of 8 - -------------------------------------------------------------------------------- 1) Names of Reporting Persons/ I.R.S. Identification Nos. of Above Persons (Entities Only) Bradley S. Ferrell ------------------------------------------------------------------------------ 2) Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ] ------------------------------------------------------------------------------ 3) SEC Use Only ------------------------------------------------------------------------------ 4) Citizenship or Place of Organization U.S. ------------------------------------------------------------------------------ Number of (5) Sole Voting Power Shares 38,205 Beneficially (6) Shared Voting Power Owned by 422,437 Each (7) Sole Dispositive Power Reporting 38,205 Person (8) Shared Dispositive Power With 422,437 ------------------------------------------------------------------------------ 9) Aggregate Amount Beneficially Owned by Each Reporting Person 460,642 ------------------------------------------------------------------------------ 10) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] (See Instructions) ------------------------------------------------------------------------------ 11) Percent of Class Represented by Amount in Row (9) 7.21% ------------------------------------------------------------------------------ 12) Type of Reporting Person (See Instructions) IN ------------------------------------------------------------------------------ CUSIP NO. 866942 10 5 13G Page 5 of 8 - -------------------------------------------------------------------------------- Item 1(a). Name of Issuer: SUN HYDRAULICS CORPORATION Item 1(b). Address of Issuer's Principal Executive Offices: 1500 West University Parkway Sarasota, FL 34243 Item 2(a). Name of Person Filing: Robert S. Ferrell Ann R. Ferrell Bradley S. Ferrell Item 2(b). Address of Principal Business Office or, if none, Residence: 5086 Castlerock Way Naples, FL 34112 Item 2(c). Citizenship: U.S. Item 2(d). Title of Class of Securities: Common Stock Item 2(e). CUSIP Number: 866942 10 5 Item 3.If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), check whether the filing person is a: (a) [ ] Broker or Dealer registered under Section 15 of the Act; (b) [ ] Bank as defined in Section 3(a)(6) of the Act; (c) [ ] Insurance company as defined in Section 3(a)(19) of the Act; (d) [ ] Investment company registered under Section 8 of the Investment Company Act; (e) [ ] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E); (f) [ ] An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F); (g) [ ] A parent holding company or control person in accordance with Rule 13d-1(b)(ii)(G); (h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act; CUSIP NO. 866942 10 5 13G Page 6 of 8 - -------------------------------------------------------------------------------- (i) [ ] A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act; (j) [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(J). If this statement is filed pursuant to Rule 13d-1(c), check this box. [X] Item 4. Ownership: Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1. (a) Amount Beneficially Owned: See Response to Item 9 on cover pages. (b) Percent of Class: See Response to Item 11 on cover pages. (c) Number of shares as to which such person has: (i) sole power to vote or to direct the vote: See Response to Item 5 on cover pages. (ii) shared power to vote or to direct the vote: See Response to Item 6 on cover pages. (iii) sole power to dispose or to direct the disposition of: See Response to Item 7 on cover pages. (iv) shared power to dispose or to direct the disposition of: See Response to Item 8 on cover pages. Item 5. Ownership of Five Percent or Less of a Class: Not applicable Item 6. Ownership of More than Five Percent on Behalf of Another Person: Not applicable Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company: Not applicable Item 8. Identification and Classification of Members of the Group: Not applicable Item 9. Notice of Dissolution of Group: Not applicable Item 10. Certification: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. CUSIP NO. 866942 10 5 13G Page 7 of 8 - -------------------------------------------------------------------------------- SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 9, 2001 /s/ Robert S. Ferrell ---------------------------- Robert S. Ferrell /s/ Ann R. Ferrell ---------------------------- Ann R. Ferrell /s/ Bradley S. Ferrell ---------------------------- Bradley S. Ferrell CUSIP NO. 866942 10 5 13G Page 8 of 8 - -------------------------------------------------------------------------------- EXHIBIT A RULE 13d-1(k) AGREEMENT The undersigned agree and consent to the joint filing on their behalf of this Schedule 13G in connection with their beneficial ownership of the common stock of Sun Hydraulics Corporation at December 31, 2000. /s/ Robert S. Ferrell ----------------------------- Robert S. Ferrell /s/ Ann R. Ferrell ----------------------------- Ann R. Ferrell /s/ Bradley S. Ferrell ----------------------------- Bradley S. Ferrell