SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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) Under the Securities Exchange Act of 1934 (Amendment No. 1)* Griffon Corporation -------------------------------------------------------------------------------- (Name of Issuer) Common Stock, par value $0.25 per share -------------------------------------------------------------------------------- (Title of Class of Securities) 398433102 -------------------------------------------------------------------------------- (CUSIP Number) Marc Weingarten, Esq. Schulte Roth & Zabel LLP 919 Third Avenue New York, New York 10022 (212) 756-2000 -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) February 6, 2007 -------------------------------------------------------------------------------- (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 for other parties to whom copies are to be sent. (Continued on following pages) (Page 1 of 10 Pages) -------------------------- * 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 ("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. 398433102 SCHEDULE 13D PAGE 2 OF 10 PAGES ------------------------------ --------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) CLINTON GROUP, INC. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS* AF -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER -0- ---------------------------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 1,841,124 OWNED BY ---------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON WITH -0- ---------------------------------------------------------- 10 SHARED DISPOSITIVE POWER 1,841,124 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON 1,841,124 -------------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.1% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* IA; CO -------------------------------------------------------------------------------- * SEE INSTRUCTIONS ------------------------------ --------------------- CUSIP NO. 398433102 SCHEDULE 13D PAGE 3 OF 10 PAGES ------------------------------ --------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) CLINTON MULTISTRATEGY MASTER FUND, LTD. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS* WC -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION CAYMAN ISLANDS -------------------------------------------------------------------------------- 7 SOLE VOTING POWER -0- ---------------------------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 1,639,244 OWNED BY ---------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON WITH -0- ---------------------------------------------------------- 10 SHARED DISPOSITIVE POWER 1,639,244 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON 1,639,244 -------------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.4% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* CO -------------------------------------------------------------------------------- * SEE INSTRUCTIONS ------------------------------ --------------------- CUSIP NO. 398433102 SCHEDULE 13D PAGE 4 OF 10 PAGES ------------------------------ --------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) CLINTON SPECIAL OPPORTUNITIES MASTER FUND, LTD. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS* WC -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION CAYMAN ISLANDS -------------------------------------------------------------------------------- 7 SOLE VOTING POWER -0- ---------------------------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 201,880 OWNED BY ---------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON WITH -0- ---------------------------------------------------------- 10 SHARED DISPOSITIVE POWER 201,880 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON 201,880 -------------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.7% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* CO -------------------------------------------------------------------------------- * SEE INSTRUCTIONS ------------------------------ --------------------- CUSIP NO. 398433102 SCHEDULE 13D PAGE 5 OF 10 PAGES ------------------------------ --------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) GEORGE E. HALL -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS* AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION UNITED STATES -------------------------------------------------------------------------------- 7 SOLE VOTING POWER -0- ---------------------------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 1,841,124 OWNED BY ---------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON WITH -0- ---------------------------------------------------------- 10 SHARED DISPOSITIVE POWER 1,841,124 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON 1,841,124 -------------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.1% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- * SEE INSTRUCTIONS ------------------------------ --------------------- CUSIP NO. 398433102 SCHEDULE 13D PAGE 6 OF 10 PAGES ------------------------------ --------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) CONRAD BRINGSJORD -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS* AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION UNITED STATES -------------------------------------------------------------------------------- 7 SOLE VOTING POWER -0- ---------------------------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 1,841,124 OWNED BY ---------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING PERSON WITH -0- ---------------------------------------------------------- 10 SHARED DISPOSITIVE POWER 1,841,124 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON 1,841,124 -------------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.1% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- * SEE INSTRUCTIONS ------------------------------ --------------------- CUSIP NO. 398433102 SCHEDULE 13D PAGE 7 OF 10 PAGES ------------------------------ --------------------- The Schedule 13D filed on December 20, 2006 by Clinton Group, Inc., a Delaware corporation ("CGI"), Clinton Multistrategy Master Fund, Ltd., a Cayman Islands company ("CMSF"), Clinton Special Opportunities Master Fund, Ltd., a Cayman Islands company ("CSO"), George E. Hall and Conrad Bringsjord (collectively, the "Reporting Persons"), with respect to the shares of Common Stock, par value $0.25 per share (the "Shares"), of Griffon Corporation, a Delaware corporation (the "Issuer"), is hereby amended as set forth herein by this Amendment No. 1. ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION. Item 3 of the Schedule 13D is hereby amended and restated as follows: Funds for the purchase of the Shares reported herein were derived from available capital of CMSF and CSO. A total of approximately $44,919,951 was paid to acquire such Shares. ITEM 5. INTEREST IN SECURITIES OF THE ISSUER. Paragraphs (a), (b) and (c) of Item 5 of the Schedule 13D are hereby amended and restated as follows: (a) As of the close of business on February 6, 2007, the Reporting Persons beneficially owned an aggregate of 1,841,124 Shares, constituting approximately 6.1% of the Shares outstanding. The aggregate percentage of Shares beneficially owned by the Reporting Persons is based upon 30,134,115 Shares outstanding, which is the total number of Shares outstanding as of December 22, 2006 as reported in the Issuer's Proxy Statement on Schedule 14A dated December 29, 2006. (b) By virtue of investment management agreements with each of CMSF and CSO, CGI has the power to vote or direct the voting, and to dispose or direct the disposition, of all of the 1,639,244 Shares held by CMSF and the 201,880 Shares held by CSO. By virtue of his direct and indirect control of CGI, George E. Hall is deemed to have shared voting power and shared dispositive power with respect to all Shares as to which CGI has voting power or dispositive power. By virtue of his position as managing director and senior portfolio manager of CGI, Conrad Bringsjord is also deemed to have shared voting power and shared dispositive power with respect to all Shares as to which CGI has voting power or dispositive power. Accordingly, CGI, George E. Hall and Conrad Bringsjord are deemed to have shared voting and shared dispositive power with respect to an aggregate of 1,841,124 Shares. (c) Information concerning transactions in the Shares effected by the Reporting Persons since the most recent filing on Schedule 13D is set forth in Schedule B hereto and is incorporated herein by reference. Unless otherwise indicated, all of such transactions were effected in the open market. --------------------------- ------------------- CUSIP NO. 398433102 SCHEDULE 13D PAGE 8 OF 10 PAGES --------------------------- ------------------- Item 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO SECURITIES OF THE ISSUER. Item 6 of the Schedule 13D is hereby amended and restated as follows: The Reporting Persons may, from time to time, enter into and dispose of cash-settled equity swap or other similar derivative transactions with one or more counterparties that are based upon the value of Shares, which transactions may be significant in amount. The profit, loss and/or return on such contracts may be wholly or partially dependent on the market value of the Shares, the relative value of Shares in comparison to one or more other financial instruments, indexes or securities, a basket or group of securities in which Shares may be included, or a combination of any of the foregoing. In addition to the Shares that they beneficially own without reference to these contracts, the Reporting Persons currently have long economic exposure to 414,800 Shares through such contracts. These contracts do not give the Reporting Persons direct or indirect voting, investment or dispositive control over any securities of the Issuer and do not require the counterparties thereto to acquire, hold, vote or dispose of any securities of the Issuer. Accordingly, the Reporting Persons disclaim any beneficial ownership in any securities that may be referenced in such contracts or that may be held from time to time by any counterparties to such contracts. Except as otherwise set forth herein, the Reporting Persons do not have any contract, arrangement, understanding or relationship with any person with respect to the securities of the Issuer. Item 7. MATERIAL TO BE FILED AS EXHIBITS Item 7 of the Schedule 13D is hereby amended and restated as follows: Exhibit A - Joint Filing Agreement dated December 20, 2006 (previously filed) Exhibit B - Letter to Issuer dated December 20, 2006 (previously filed) --------------------------- ------------------- CUSIP NO. 398433102 SCHEDULE 13D PAGE 9 OF 10 PAGES --------------------------- ------------------- SIGNATURES After reasonable inquiry and to the best of his or its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct. Dated: February 7, 2007 CLINTON GROUP, INC. By: /s/ Francis Ruchalski --------------------------- Name: Francis Ruchalski Title: Comptroller CLINTON MULTISTRATEGY MASTER FUND, LTD. By: Clinton Group, Inc. its investment manager By: /s/ Francis Ruchalski --------------------------- Name: Francis Ruchalski Title: Comptroller CLINTON SPECIAL OPPORTUNITIES MASTER FUND, LTD. By: Clinton Group, Inc. its investment manager By: /s/ Francis Ruchalski --------------------------- Name: Francis Ruchalski Title: Comptroller /s/ George E. Hall ------------------------------ George E. Hall /s/ Conrad Bringsjord ------------------------------ Conrad Bringsjord --------------------------- ------------------- CUSIP NO. 398433102 SCHEDULE 13D PAGE 10 OF 10 PAGES --------------------------- ------------------- SCHEDULE B TRANSACTIONS IN THE SHARES BY THE REPORTING PERSONS SINCE THE MOST RECENT FILING ON SCHEDULE 13D Clinton Multistrategy Master Fund, Ltd. Trade Date Shares Purchased (Sold) Price Per Share ($) ---------- ----------------------- ------------------- 12/21/06 72,500 25,40 12/28/06 2,000 25.80 12/29/06 14,000 25.54 12/29/06 (1,000) 25.57 01/05/07 18,900 23.32 01/08/07 10,100 25.13 01/09/07 8,000 25.14 01/10/07 11,500 25.42 02/05/07 8,000 23.00 02/06/07 62,000 22.89 Clinton Special Opportunities Master Fund, Ltd. Trade Date Shares Purchased (Sold) Price Per Share ($) ---------- ----------------------- ------------------- 02/01/07 (33,000) 25.93 02/02/07 34,180 24.68 02/05/07 33,000 23.00 02/06/07 62,000 22.89