SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 -------------- SCHEDULE 13D (RULE 13D-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13D-1(A) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13D-2(A) Fortissimo Acquisition Corp. -------------- (Name of Issuer) Units, each consisting of one share of Common Stock, par value $0.0001 per share, and two warrants to purchase one share of Common Stock (Title of Class of Securities) 34958F206 --------- (CUSIP Number) Paul D. Sonkin Hummingbird Management, LLC 460 Park Avenue, 12th Floor New York, New York 10022 212 750-7117 ------------------------ (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) October 12, 2006 ----------------- (Date of Event Which Requires Filing of This Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box /_/. Note. Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7(b) for other parties to whom copies are to be sent. -------- 1 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 disclosures provided in a prior cover page. The information required on 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 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. 34958F206 13D Page 2 of 11 Pages ------------------------ ---------------------------- ================================================================================ 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Hummingbird Management, LLC IRS No. 13-4082842 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /x/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER UNITS BENEFICIALLY 460,000 OWNED BY EACH REPORTING PERSON WITH ----------------------------------------------------------------- 8 SHARED VOTING POWER -0- ----------------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 460,000 ----------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 460,000 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN UNITS / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.4% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* OO ================================================================================ ------------------------ ---------------------------- CUSIP No. 34958F206 13D Page 3 of 11 Pages ------------------------ ---------------------------- ================================================================================ 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Paul D. Sonkin -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /x/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION UNITED STATES -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER UNITS BENEFICIALLY 460,000 OWNED BY EACH REPORTING PERSON WITH ----------------------------------------------------------------- 8 SHARED VOTING POWER -0- ----------------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 460,000 ----------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 460,000 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN UNITS* / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.4% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO ================================================================================ . ------------------------ ---------------------------- CUSIP No. 34958F206 13D Page 4 of 11 Pages ------------------------ ---------------------------- ================================================================================ 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Hummingbird Capital, LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /x/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER UNITS BENEFICIALLY 460,000 OWNED BY EACH REPORTING PERSON WITH ----------------------------------------------------------------- 8 SHARED VOTING POWER -0- ----------------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 460,000 ----------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 460,000 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN UNITS / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.4% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO ================================================================================ ------------------------ ---------------------------- CUSIP No. 34958F206 13D Page 5 of 11 Pages ------------------------ ---------------------------- ================================================================================ 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Hummingbird Value Fund, L.P. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /X/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER UNITS BENEFICIALLY 333,000 OWNED BY EACH REPORTING PERSON WITH ----------------------------------------------------------------- 8 SHARED VOTING POWER -0- ----------------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 333,000 ----------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 333,000 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN UNITS / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.8% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON LP ================================================================================ ------------------------ ---------------------------- CUSIP No. 34958F206 13D Page 6 of 11 Pages ------------------------ ---------------------------- ================================================================================ 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Hummingbird Microcap Value Fund, L.P. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /X/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER UNITS BENEFICIALLY 127,000 OWNED BY EACH REPORTING PERSON WITH ----------------------------------------------------------------- 8 SHARED VOTING POWER -0- ----------------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 127,000 ----------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 127,000 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN UNITS* / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 2.6% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON LP ================================================================================ ------------------------ ---------------------------- CUSIP No. 34958F206 13D Page 7 of 11 Pages ------------------------ ---------------------------- The following constitutes the Schedule 13D filed by the undersigned (the "Schedule 13D"). ITEM 1 SECURITY AND ISSUER Title of Class of Securities Units, ("Units") each consisting of one share of Common Stock, par value $0.0001 per share, and two warrants to purchase one share of Common Stock Name and Address of Issuer Fortisssimo Acquisition Corp (the "Company" or the "Issuer") 14 Hamelacha Street Park Afek, Rosh Ha'ayin LC Israel 48091 ITEM 2 IDENTITY AND BACKGROUND This statement is being filed by Hummingbird Management, LLC, a Delaware limited liability company("Hummingbird"), whose principal business and principal office address is460 Park Avenue, 12th Floor, New York, New York 10022. Hummingbird acts as investment manager to The Hummingbird Value Fund, L.P. ("HVF") and to The Hummingbird Microcap Value Fund, L.P. (the "Microcap Fund"), and has the sole investment discretion and voting authority with respect to the investments owned of record by each of HVF and Microcap Fund. Accordingly, Hummingbird may be deemed for purposes of Rule 13d-3 of the Securities and Exchange Act of 1934, as amended ("Rule 13d-3"), to be the beneficial owner of the UNITS owned by HVF and Microcap Fund.The managing member of Hummingbird is Paul Sonkin. Mr. Sonkin is also the managing member of Hummingbird Capital, LLC, a Delaware limited liability company ("HC"), and together with Hummingbird, HVF, Microcap Fund,and Mr. Sonkin, the "Reporting Persons"), the general partner of each of HVF and Microcap Fund. Both HVF and Microcap Fund are Delaware limited partnerships whose principal business and principal office address is 460 Park Avenue, 12th Floor, New York, New York, 10022 and whose principal business is investing in securities in order to achieve its investment objectives. Mr. Sonkin is a citizen of the United States and HC is a Delaware limited liability company. The principal business of Mr. Sonkin is acting a managing member of each of Hummingbird and HC. The principal business of HC is acting as general partner of each of HVF, and Microcap Fund. The principal office address of each of Mr. Sonkin and HC is 460 Park Avenue, 12th Floor, New York, New York 10022. During the past five years none of Hummingbird, HVF, Microcap Fund, Mr. Sonkin or HC has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or has been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of which any of the foregoing was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandatingactivities subject to, Federal or State securities laws, or finding any violation with respect to such laws. ------------------------ ---------------------------- CUSIP No. 34958F206 13D Page 8 of 11 Pages ------------------------ ---------------------------- ITEM 3 SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION As of October 26, 2006, Hummingbird has caused HVF and Microcap Fund to invest approximately $1,998,015, and $762,015, respectively, in the Units of the Issuer using their working capital. ITEM 4 PURPOSE OF TRANSACTION The Units were acquired for investment purposes. However, Hummingbird may hold discussions with various parties, including, but not limited to, the Issuer's management, its board of directors and other shareholders on a variety of possible subjects regarding ways to increase shareholder value. Some of the suggestions Hummingbird might make could affect control of the Issuer and/or may relate to the following: the merger, acquisition or liquidation of the Issuer to third parties, the sale or transfer of assets of the Issuer to third parties, operational matters, a change in the board of directors or the management of the Issuer, a change in the present capitalization or dividend policy of the Issuer or a change in the Issuer's charter or by-laws. Hummingbird intends to pay close attention to developments at and pertaining to the Issuer, and, subject to market conditions and other factors deemed relevant by Hummingbird, Hummingbird may, directly or indirectly, purchase additional Units of the Issuer or dispose of some or such Units in open-market transaction or privately negotiated transactions. The Reporting Persons have no present plan or proposal which would relate to or result in any of the matters set forth in subparagraphs (a) - (j) of Item 4 of Schedule 13D except as set forth herein or such as would occur upon completion of any of the actions discussed above. ITEM 5 INTEREST IN SECURITIES OF THE ISSUER (a) As investment manager of HVF and Microcap Fund, Hummingbird may be deemed to have the sole voting and investment authority over the Units owned by HVF and Microcap Fund, for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended ("Rule 13d-3"), may be deemed to be the beneficial owner of 460,000 Units representing approximately 9.4% of the outstanding Units of the Issuer (based upon 4,868,334 Units outstanding as of October 25, 2006, as reported on Form 8-K filed October 25, 2006.) Hummingbird disclaims any beneficial ownership of the Units covered by this Statement. Mr. Sonkin, as the managing member and control person of Hummingbird, may be deemed to have the sole voting and investment authority over the Units beneficially owned by Hummingbird and, for purposes of Rule 13d-3, may be deemed to be the beneficial owner of 460,000 Units representing approximately 9.4% of the outstanding Units of the Issuer. Mr. Sonkin disclaims any beneficial ownership of the Units covered by this Statement. ------------------------ ---------------------------- CUSIP No. 34958F206 13D Page 9 of 11 Pages ------------------------ ---------------------------- HC, as the general partner of each of HVF and Microcap Fund, Hummingbird may be deemed to have the sole voting and investment authority over the Units owned by HVF and Microcap Fund, for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended ("Rule 13d-3"), may be deemed to be the beneficial owner of 460,000 Units representing approximately 9.4% of the outstanding Units of the Issuer (based upon 4,868,334 Units outstanding as of October 25, 2006, as reported on Form 8-K filed October 25, 2006.) HC disclaims any beneficial ownership of the Units covered by this Statement. HVF is the beneficial owner of 333,000 UNITS or 6.8% of the outstanding Units of the Issuer. Microcap Fund is the beneficial owner of 127,000 UNITS or 2.6% of the outstanding Units of the Issuer. (c) Hummingbird caused HVF to effect transactions in the Units during the past 60 days as set forth below: NUMBER OF DATE TYPE UNITS PRICE/SHARE ---- ---- ------ ----------- 10/12/2006 initial public offering 333,000 6.000 Hummingbird caused the Microcap Fund to effect transactions in the UNITS during the past 60 days as set forth below: NUMBER OF NUMBER OF DATE TYPE UNITS PRICE/SHARE ---- ---- ------ ----------- 10/12/2006 initial public offering 127,000 6.000 ------------------------ ---------------------------- CUSIP No. 34958F206 13D Page 10 of 11 Pages ------------------------ ---------------------------- (d) Inapplicable. (e) Inapplicable. ITEM 6 Inapplicable ITEM 7 MATERIAL TO BE FILED AS EXHIBITS Exhibit Exhibit No. Description --- --------------------------------------------------------------- 1 Joint Filing Agreement dated October 26, 2006 by and among Hummingbird Management, LLC, Hummingbird Value Fund, L.P., Hummingbird Mircocap Value Fund, L.P., Hummingbird Capital, LLC. and Paul Sonkin. SIGNATURES After reasonable inquiry and to the best of our knowledge and belief, we certify that the information set forth in this statement is true, complete and correct. Dated: October 26, 2006 HUMMINGBIRD MANAGEMENT, LLC By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member /s/ Paul D. Sonkin ------------------------------------- PAUL D. SONKIN HUMMINGBIRD VALUE FUND, L.P. By: Hummingbird Capital, LLC By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member HUMMINGBIRD MICROCAP VALUE FUND, L.P. By: Hummingbird Capital, LLC By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member HUMMINGBIRD CAPITAL, LLC (f/k/a Morningside Capital, LLC) By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member ------------------------ ---------------------------- CUSIP No. 34958F206 13D Page 11 of 11 Pages ------------------------ ---------------------------- JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D dated October 26, 2006 (including amendments thereto) with respect to the Units of Fortissimo Acquisition Corp. This Joint Filing Agreement shall be filed as an Exhibit to such Statement. Dated: October 26, 2006 HUMMINGBIRD MANAGEMENT, LLC (f/k/a Morningside Value Investors, LLC) By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member HUMMINGBIRD VALUE FUND, L.P. By: Hummingbird Capital, LLC By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member HUMMINGBIRD MICROCAP VALUE FUND, L.P. By: Hummingbird Capital, LLC By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member HUMMINGBIRD CAPITAL, LLC (f/k/a Morningside Capital, LLC) By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin