SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ____________________________________ SCHEDULE 13G Information Statement pursuant to Rule 13d-1 and 13d-2 ____________________________________ Dot Hill Systems Corp. ---------------------- (Name of Issuer) COMMON STOCK ($0.01 par value) ------------------------------ (Title of Class of Securities) 25848T109 --------- (CUSIP Number) December 18, 2002 (Date of event which requires filing of this Statement) 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) (Continued on following pages) (Page 1 of 17 Pages) Page 2 of 17 Pages 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Omicron Master Trust -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] (See Item 6) -------------------------------------------------------------------------------- 3. SEC USE ONLY -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION: Bermuda -------------------------------------------------------------------------------- 5. SOLE VOTING POWER NUMBER OF SHARES None. BENEFICIALLY OWNED BY 6. SHARED VOTING POWER EACH 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) REPORTING 7. SOLE DISPOSITIVE POWER PERSON WITH None. 8. SHARED DISPOSITIVE POWER 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.9% (See Item 4(a)) -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON PN -------------------------------------------------------------------------------- Page 3 of 17 Pages 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Omicron Capital, L.P. 52-2057093 -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] (See Item 6) -------------------------------------------------------------------------------- 3. SEC USE ONLY -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION: Delaware -------------------------------------------------------------------------------- 5. SOLE VOTING POWER NUMBER OF SHARES None. BENEFICIALLY OWNED BY 6. SHARED VOTING POWER EACH None. REPORTING 7. SOLE DISPOSITIVE POWER PERSON WITH None. 8. SHARED DISPOSITIVE POWER 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.9% (See Item 4(a)) -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON PN -------------------------------------------------------------------------------- Page 4 of 17 Pages 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Omicron Capital, Inc. 52-2032702 -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] (See Item 6) -------------------------------------------------------------------------------- 3. SEC USE ONLY -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION: Delaware -------------------------------------------------------------------------------- 5. SOLE VOTING POWER NUMBER OF SHARES None. BENEFICIALLY OWNED BY 6. SHARED VOTING POWER EACH None. REPORTING 7. SOLE DISPOSITIVE POWER PERSON WITH None. 8. SHARED DISPOSITIVE POWER 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.9% (See Item 4(a)) -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON CO -------------------------------------------------------------------------------- Page 5 of 17 Pages 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Bruce Bernstein -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] (See Item 6) -------------------------------------------------------------------------------- 3. SEC USE ONLY -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION: United States of America -------------------------------------------------------------------------------- 5. SOLE VOTING POWER NUMBER OF SHARES None. BENEFICIALLY OWNED BY 6. SHARED VOTING POWER EACH None. REPORTING 7. SOLE DISPOSITIVE POWER PERSON WITH None. 8. SHARED DISPOSITIVE POWER 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.9% (See Item 4(a)) -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON IN -------------------------------------------------------------------------------- Page 6 of 17 Pages 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Olivier Morali -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] (See Item 6) -------------------------------------------------------------------------------- 3. SEC USE ONLY -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION: France -------------------------------------------------------------------------------- 5. SOLE VOTING POWER NUMBER OF SHARES None. BENEFICIALLY OWNED BY 6. SHARED VOTING POWER EACH None. REPORTING 7. SOLE DISPOSITIVE POWER PERSON WITH None. 8. SHARED DISPOSITIVE POWER 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.9% (See Item 4(a)) -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON IN -------------------------------------------------------------------------------- Page 7 of 17 Pages 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Winchester Global Trust Company Limited -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] (See Item 6) -------------------------------------------------------------------------------- 3. SEC USE ONLY -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION: Bermuda -------------------------------------------------------------------------------- 5. SOLE VOTING POWER NUMBER OF SHARES None. BENEFICIALLY OWNED BY 6. SHARED VOTING POWER EACH 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) REPORTING 7. SOLE DISPOSITIVE POWER PERSON WITH None. 8. SHARED DISPOSITIVE POWER 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.9% (See Item 4(a)) -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON CO -------------------------------------------------------------------------------- Page 8 of 17 Pages 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Oskar P. Lewnowski -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] (See Item 6) -------------------------------------------------------------------------------- 3. SEC USE ONLY -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION: Austria -------------------------------------------------------------------------------- 5. SOLE VOTING POWER NUMBER OF SHARES None. BENEFICIALLY OWNED BY 6. SHARED VOTING POWER EACH 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) REPORTING 7. SOLE DISPOSITIVE POWER PERSON WITH None. 8. SHARED DISPOSITIVE POWER 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,476,922 shares of Common Stock of the Issuer (see Item 4(a)) -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.9% (See Item 4(a)) -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON IN -------------------------------------------------------------------------------- Page 9 of 17 Pages ITEM 1(a). NAME OF REPORTING PERSON Dot Hill Systems Corp., Inc. (the "Issuer") ITEM 1(b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES. 6305 El Camino Real Carlsbad, California 92009 ITEM 2(a). NAMES OF PERSON FILING. Omicron Master Trust ("Omicron Trust") Omicron Capital, L.P. ("Omicron Capital") Omicron Capital, Inc. ("OCI") Bruce Bernstein ("Bernstein") Olivier Morali ("Morali") Winchester Global Trust Company Limited ("WGTCL") Oskar P. Lewnowski ("Lewnowski") ITEM 2(b). ADDRESS OF PRINCIPAL BUSINESS OFFICE, OR IF NONE, RESIDENCE. THE ADDRESS OF THE PRINCIPAL BUSINESS OFFICE IS: Omicron Trust - c/o Olympia Capital International Inc., Williams House, 20 Reid Street, Hamilton HM11, Bermuda Omicron Capital - 153 E. 53rd Street, 48th Floor, New York, New York 10022 OCI - 153 E. 53rd Street, 48th Floor, New York, New York 10022 Bernstein - 153 E. 53rd Street, 48th Floor, New York, New York 10022 Morali - 153 E. 53rd Street, 48th Floor, New York, New York 10022 WGTCL - c/o Winchester Fiduciary Limited, Williams House, 20 Reid Street, Hamilton HM11, Bermuda Lewnowski - c/o Winchester Fiduciary Limited, Williams House, 20 Reid Street, Hamilton HM11, Bermuda ITEM 2(c). CITIZENSHIP. Omicron Trust - Bermuda Omicron Capital - Delaware OCI - Delaware Page 10 of 17 Pages Bernstein - United States of America Morali - France WGTCL - Bermuda Lewnowski - Austria ITEM 2(d). TITLE OF CLASS OF SECURITIES. Common Stock, $0.01 par value per share of the Issuer (the "Common Stock") ITEM 2(e). CUSIP NUMBER. 640656104 ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULES 13D-1(B) OR 13D-2(B), CHECK WHETHER THE PERSON FILING IS A: This statement is filed pursuant to Rule 13d-1(c) by Omicron Trust, Omicron Capital, OCI, Bernstein, Morali, WGTCL and Lewnowski. ITEM 4. OWNERSHIP. (a) Amount Beneficially Owned: Omicron Trust: 1,476,922 shares* Omicron Capital: 1,476,922 shares* OCI: 1,476,922 shares* Morali: 1,476,922 shares* Bernstein: 1,476,922 shares WGTCL: 1,476,922 shares* Lewnowksi: 1,476,922 shares* (b) Percent of Class: Omicron Partners: 5.9% Omicron Capital: 5.9% OCI: 5.9% Bernstein: 5.9% Morali: 5.9% WGTCL: 5.9% Lewnowski: 5.9% (based on25,164,848 shares of Common Stock of the Issuer issued and outstanding as of September 30, 2002 as stated in the Issuer's most recent Form 10-Q) (c) Number of Shares as to which the Person has: Omicron Trust, WGTCL and Lewnowski: ---------------------------------- Page 11 of 17 Pages (i) sole power to vote or to direct the vote: none (ii) shared power to vote or to direct the vote: 1,476,922 shares of Common Stock:* (iii) sole power to dispose or to direct the disposition of: none (iv) shared power to dispose or to direct the disposition of: 1,476,922 shares of Common Stock* Omicron Capital, OCI, Bernstein and Morali: ------------------------------------------ (i) sole power to vote or to direct the vote: none (ii) shared power to vote or to direct the vote: none (iii) sole power to dispose or to direct the disposition of: none (iv) shared power to dispose or to direct the disposition of: 1,476,922 shares of Common Stock* *Omicron Capital serves as investment manager to Omicron Trust. By reason of such relationship, Omicron Capital may be deemed to share dispositive power over the shares of Common Stock owned by Omicron Partners. Omicron Trust disclaims beneficial ownership of the shares of Common Stock listed as beneficially owned by Omicron Trust or any other person reporting on this Schedule. OCI serves as general partner of Omicron Capital. By reason of such relationship, OCI may be deemed to share dispositive power over the shares of Common Stock listed as beneficially owned by Omicron Capital. OCI disclaims beneficial ownership of the shares of Common Stock listed as beneficially owned by Omicron Capital or any other person reporting on this Schedule. Morali serves as president and a director and is a stockholder of OCI. By reason of such relationships, Morali may be deemed to share dispositive power over the shares of Common Stock listed as beneficially owned by OCI. Morali disclaims beneficial ownership of the shares of Common Stock listed as beneficially owned by OCI or any other person reporting on this Schedule. Page 12 of 17 Pages Bernstein serves as an officer of OCI. By reason of such relationships, Bernstein may be deemed to share dispositive power over the shares of Common Stock listed as beneficially owned by OCI. Bernstein disclaims beneficial ownership of the shares of Common Stock listed as beneficially owned by OCI or any other person reporting on this Schedule. WGTCL serves as trustee of Omicron Trust. By reason of such relationship, WGTCL may be deemed to shares voting and dispositive power over the shares of Common Stock listed as beneficially owned by Omicron Trust. WGTCL disclaims beneficial ownership of the shares of Common Stock listed as beneficially owned by Omicron Trust or any other person reporting on this Schedule. WGTCL may be deemed to be controlled by Lewnowski. By reason of such control, Lewnowski may be deemed to share voting and dispositive power over the shares of Common Stock listed as beneficially owned by WGTCL. Lewnowski disclaims beneficial ownership of the shares of Common Stock listed as beneficially owned by WGTCL. Certain of the shares of Common Stock reported as beneficially owned are shares that Omicron Trust has the right to acquire upon exercise of warrants to purchase Common Stock held by Omicron Trust. Omicron Capital, OCI, Bernstein, Morali, WGTCL and Lewnowski each disclaims beneficial ownership of such shares of Common Stock. Of the shares of Common Stock reported as beneficially owned, 246,153 shares of Common Stock are shares which Omicron Trust has the right to acquire upon exercise of warrants of the Issuer. 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 Page 13 of 17 Pages not acquired and are not held in connection with or as a participant in any transaction which could have that purpose or effect. EXHIBITS: Exhibit I: Joint Filing Agreement, dated as of February 7, 2003, by and among Omicron Trust, Omicron Capital, OCI, Bernstein, Morali, WGTCL and Lewnowski. Page 14 of 17 Pages SIGNATURE By signing below each signatory certifies that, to the best of its 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. Date: February 7, 2003 OMICRON MASTER TRUST By: OMICRON CAPITAL, L.P., Investment Manager By: OMICRON CAPITAL, INC., General Partner By: /s/ Bruce Bernstein ---------------------------- Bruce Bernstein, President OMICRON CAPITAL, L.P. By: OMICRON CAPITAL, INC., General Partner By: /s/ Bruce Bernstein ---------------------------- Bruce Bernstein, President OMICRON CAPITAL, INC. By: /s/ Bruce Bernstein ---------------------------- Bruce Bernstein, President /s/ Bruce Bernstein ---------------------------- Bruce Bernstein /s/ Olivier Morali ---------------------------- Olivier Morali Page 15 of 17 Pages WINCHESTER GLOBAL TRUST COMPANY LIMITED By: /s/ Oskar P. Lewnowksi ---------------------------- Oskar P. Lewnowski, Chairman /s/ Oskar P. Lewnowksi --------------------------- Oskar P. Lewnowski Page 16 of 17 Pages Exhibit I JOINT FILING AGREEMENT This will confirm the agreement by and among the undersigned that the amendment to Schedule 13G filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by the undersigned of the Common Stock, $.01 par value, of Dot Hill Systems Corp., a Delaware corporation, is being filed, and all amendments thereto will be filed, on behalf of each of the persons and entities named below in accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. Dated as of February 7, 2003 OMICRON MASTER TRUST By: OMICRON CAPITAL, L.P., Investment Manager By: OMICRON CAPITAL, INC., General Partner By: /s/ Bruce Bernstein ---------------------------- Bruce Bernstein, President OMICRON CAPITAL, L.P. By: OMICRON CAPITAL, INC., General Partner By: /s/ Bruce Bernsein ---------------------------- Bruce Bernstein, President OMICRON CAPITAL, INC. By: /s/ Bruce Bernstein ---------------------------- Bruce Bernstein, President /s/ Bruce Bernstein ---------------------------- Bruce Bernstein Page 17 of 17 Pages /s/ Olivier Morali ---------------------------- Olivier Morali WINCHESTER GLOBAL TRUST COMPANY LIMITED By: /s/ Oskar P. Lewnowksi ---------------------------- Oskar P. Lewnowski, Chairman /s/ Oskar P. Lewnowksi ---------------------------- Oskar P. Lewnowski