UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported)

~~June~~August 301, 2006

STRUCTURED ASSET SECURITIES CORPORATION (as Depositor under the Trust Agreement, dated as of June 1, 2006, providing for the issuance of Lehman XS Trust Mortgage Pass-Through Certificates, Series 2006-GP3)

Lehman XS Trust, Series 2006-GP3

(Issuing Entity)

Structured Asset Securities Corporation

(Exact Name of Depositor as Specified in its Charter)

Lehman Brothers Holdings Inc.

(Exact Name of Sponsor as Specified in its Charter)

Structured Asset Securities Corporation

(Exact Name of Registrant as Specified in its Charter)

Delaware	333-129480	74-2440850
(State or Other Jurisdiction Of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

745 Seventh Avenue, 7^th Floor New York, NY		10019
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s telephone number, including area code: (212) 526-7000

No Change

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c

ITEM 56. ~~Other~~02. Change ~~Events~~of Servicer or Trustee.

~~The~~This ~~Registrant~~Current Report ~~registered~~on ~~issuances~~Form ~~of Lehman XS Trust Mortgage Pass~~8-~~Through~~K ~~Certificates~~is onbeing filed ato ~~delayed~~disclose ora ~~continuous~~servicing ~~basis~~transfer ~~pursuant~~from toGreenPoint ~~Rule~~Mortgage ~~415~~Funding, ~~under the~~Inc. ~~Securities Act of 1933, as amended~~ (~~the~~ “~~Act~~GreenPoint”), byto aGMAC ~~Registration~~Mortgage ~~Statement~~Corporation ~~on Form S-3~~ (~~Registration File No. 333-129480 (the~~ “~~Registration Statement~~GMACM”)~~). Pursuant~~ toof the ~~Registration~~mortgage ~~Statement, the Registrant issued $1,007,291,000~~loans ~~in aggregate~~serviced ~~principal~~pursuant ~~amount~~to ~~Class~~the ~~1-A1,~~Flow ~~Class~~Interim ~~1-A2,~~Servicing ~~Class 2-A1~~Agreement, ~~Class~~dated ~~2-A2, Class 2-A3,~~as ~~Class~~of ~~3-A1A, Class 3-A1B, Class 3-A2A, Class 3-A2B, Class 3-A3A, Class~~April ~~3-A3B~~10, ~~Class 3-A4, Class 3-A5A, Class 3-A5B, Class M1, Class M2, Class M3,~~ ~~Class M4~~2006, ~~Class~~by ~~M5,~~and ~~Class~~between ~~M6,~~Lehman ~~Class M7~~Capital, ~~Class~~a ~~M8,~~Division ~~Class M9 and Class M10 Certificates~~ of ~~its~~ Lehman XSBrothers ~~Trust Mortgage Pass-Through Certificates, Series 2006-GP3~~Holdings onInc. ~~June~~and 30GreenPoint, ~~2006.~~as ~~This~~reconstituted ~~Current~~by ~~Report~~the onReconstituted ~~Form~~Servicing ~~8-K is being filed to satisfy an~~Agreement, ~~undertaking, contained in the definitive Prospectus,~~ dated as of June 21, 2006, ~~as supplemented~~ by ~~the~~and ~~Prospectus~~between ~~Supplement,~~Lehman ~~dated~~Brothers ~~June~~Holdings ~~28,~~Inc. ~~2006~~ (~~the~~ “~~Prospectus Supplement~~LBH”), ~~to file a copy of the Trust Agreement (as defined below) executed~~and inGreenPoint ~~connection with~~ (the ~~issuance~~“Mortgage ~~of the Certificates, a form of which was filed as an exhibit to the Registration Statement~~Loans”).

~~The~~As ~~Certificates (as defined below) were issued pursuant to a Trust Agreement (the~~of ~~“Trust~~August ~~Agreement”), attached hereto as Exhibit 4.~~1, ~~dated as of June 1,~~ 2006, ~~among~~ ~~Structured~~the ~~Asset~~Mortgage ~~Securities~~Loans ~~Corporation,~~are asserviced ~~depositor~~by ~~(the “Depositor”),~~GMACM ~~Aurora~~pursuant ~~Loan~~to ~~Services LLC, as master servicer (~~the ~~“Master~~Securitization ~~Servicer”)~~Servicing ~~and U.S. Bank National Association~~Agreement, dated as ~~trustee (the “Trustee”). The “Certificates” consist~~ of ~~the~~June ~~following classes: Class~~ 1~~-A1~~, ~~Class 1-A2~~2006, ~~Class 2-A1, Class~~ ~~2-A2, Class 2-A3, Class 3-A1A, Class 3-A1B, Class 3-A2A, Class 3-A2B, Class~~by ~~3-A3A,~~and ~~Class~~among ~~3-A3B~~GMACM, ~~Class~~as ~~3-A4~~Servicer, ~~Class 3-A5A~~LBH, ~~Class~~as ~~3-A5B~~Seller, ~~Class M1, Class~~and M2Aurora, ~~Class~~as ~~M3,~~Master ~~Class M4~~Servicer, ~~Class M5, Class M6, Class M7, Class M8, Class~~ ~~M9,~~as ~~Class~~described ~~M10, Class X, Class P, Class C and Class R . The Certificates evidence all the beneficial ownership interest~~ in ~~a trust fund (~~the ~~“Trust~~ ~~Fund”)~~Prospectus ~~that~~Supplement ~~consists~~dated ~~primarily~~June ~~of three pools of certain adjustable rate~~28, ~~conventional,~~ ~~first~~2006 ~~lien, negative amortization residential mortgage loans~~ (the ~~“Mortgage~~ ~~Loans~~“Prospectus Supplement”) ~~with~~to anthe ~~aggregate~~Prospectus ~~outstanding~~dated ~~principal balance of approximately $1,010,838,913 as of~~ June 12, 2006. ~~Capitalized terms used herein and not otherwise defined shall have the meanings assigned to them in the Trust Agreement.~~

Item 9.01. Financial Statements and Exhibits

(a)	Not applicable.
(b)	Not applicable.
(c)	Not applicable.
(d)	Exhibits:
	1.1	Terms Agreement, dated June 27, 2006, between Structured Asset Securities Corporation, as Depositor, and Lehman Brothers Inc., as the Underwriter.
	4.1	Trust Agreement, dated as of June 1, 2006, among Structured Asset Securities Corporation, as Depositor, Aurora Loan Services LLC, as Master Servicer and U.S. Bank National Association, as Trustee.
	99.1	Mortgage Loan Sale and Assignment Agreement, dated as of June 1, 2006, between Lehman Brothers Holdings Inc., as Seller, and Structured Asset Securities Corporation, as Purchaser.
	99.2	Reconstituted Servicing Agreement, dated as of June 1, 2006, by and between Lehman Brothers Holdings Inc. and GreenPoint Mortgage Funding, Inc.
	99.3	Flow Interim Servicing Agreement, dated as of April 10, 2006, by and between Lehman Capital, a Division of Lehman Brothers Holdings Inc. and Green Point Mortgage Funding, Inc.
	99.4	Securitization Servicing Agreement, dated as of June 1, 2006, by and among GMAC Mortgage Corporation, as Servicer, Lehman Brothers Holdings Inc., as Seller, and Aurora Loan Services LLC as Master Servicer.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STRUCTURED ASSET SECURITIES CORPORATION By: /s/Michael C. Hitzmann Name: Michael C. Hitzmann Title: Senior Vice President Date: July 14, 2006

	STRUCTURED ASSET SECURITIES CORPORATION


	By: /s/ Michael C. Hitzmann
	Name: Michael C. Hitzmann Title: Senior Vice President
Date: August 1, 2006

EXHIBIT INDEX

Exhibit No.	Description
1.1	Terms Agreement, dated June 27, 2006, between Structured Asset Securities Corporation, as Depositor, and Lehman Brothers Inc., as the Underwriter.
4.1	Trust Agreement, dated as of June 1, 2006, among Structured Asset Securities Corporation, as Depositor, Aurora Loan Services LLC, as Master Servicer and U.S. Bank National Association, as Trustee.
99.1	Mortgage Loan Sale and Assignment Agreement, dated as of June 1, 2006, between Lehman Brothers Holdings Inc., as Seller, and Structured Asset Securities Corporation, as Purchaser.
99.2	Reconstituted Servicing Agreement, dated as of June 1, 2006, by and between Lehman Brothers Holdings Inc. and GreenPoint Mortgage Funding, Inc.
99.3	Flow Interim Servicing Agreement, dated as of April 10, 2006, by and between Lehman Capital, a Division of Lehman Brothers Holdings Inc. and Green Point Mortgage Funding, Inc.
99.4	Securitization Servicing Agreement, dated as of June 1, 2006, by and among GMAC Mortgage Corporation, as Servicer, Lehman Brothers Holdings Inc., as Seller, and Aurora Loan Services LLC as Master Servicer.

Filing Compare · Lehman XS Trust Series 2006-GP3