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 AND EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported)

~~October~~November 3121, 2003

STRUCTURED ASSET SECURITIES CORPORATION (as Depositor under the Trust Agreement dated as of October 1, 2003, providing for the issuance of Structured Asset Investment Loan Trust Mortgage Pass-Through Certificates, Series 2003-BC11)

Structured Asset Securities Corporation

(Exact Name of Registrant as Specified in its Charter)

Delaware	333-106925	74-2440850
(State or Other Jurisdiction Of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

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

745 Seventh Avenue, 7th Floor

New York, New York

(Address of Principal Executive Offices)

10019

(Zip Code)

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

~~None~~ No Change

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

Item 5. Other Events

The Registrant registered issuances of its Structured Asset Investment Loan Trust Mortgage Pass-Through Certificates Series 2003-BC11 on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, as amended (the “Act”), by a Registration Statement on Form S-3 (Registration File No. 333-106925) (the “Registration Statement”). Pursuant to the Registration Statement, the Registrant issued $2,023,938,000 aggregate principal amount of Class A1, Class A2, Class A3, Class A-IO, Class M1, Class M2, Class M3, Class M4, Class M5 and Class B Certificates of its Structured Asset Investment Loan Trust Mortgage Pass-Through Certificates, Series 2003-BC11 on October 31, 2003. This Current Report on Form 8-K is being filed to satisfy an undertaking, contained in the definitive Prospectus dated August 26, 2003, as supplemented by the Prospectus Supplement dated October 29, 2003 (the “Prospectus Supplement”), to file ainformation ~~copy~~relating ofto the ~~Trust~~purchase ~~Agreement (as defined below) and other operative agreements executed in connection with the issuance~~ of ~~the~~additional ~~Certificates,~~mortgage aloans ~~form~~by ~~of which was filed as an exhibit to~~ the ~~Registration Statement~~Registrant.

~~The~~Pursuant ~~Certificates~~to ~~were~~a ~~issued~~transfer ~~pursuant~~supplement todated aas ~~Trust~~of ~~Agreement~~November 1, 2003 (the “~~Trust~~Transfer ~~Agreement~~Supplement”), ~~attached~~supplementing ~~hereto~~the asMortgage ~~Exhibit~~Loan ~~4.1,~~Sale and Assignment Agreement dated as of October 1, 2003, ~~among~~between ~~Structured~~Lehman ~~Asset~~Brothers ~~Securities~~Holdings ~~Corporation~~Inc., as ~~depositor,~~seller ~~Aurora~~and ~~Loan~~Structured ~~Services~~Asset ~~Inc.,~~Securities asCorporation ~~Master~~(the ~~Servicer~~“Depositor”), ~~The~~as ~~Murrayhill Company~~purchaser, asthe ~~Credit~~Depositor ~~Risk~~acquired ~~Manager,~~on ~~Wells~~November ~~Fargo Bank Minnesota~~21, ~~National Association~~2003, asmortgage ~~Securities~~loans ~~Administrator,~~having ~~and~~an ~~LaSalle~~aggregate ~~Bank~~Scheduled ~~National~~Principal ~~Association,~~Balance as ~~Trustee. The “Certificates” consist~~ of ~~the~~November ~~following classes: Class A1~~1, ~~Class~~2003 ~~A2,~~(the ~~Class~~“Subsequent ~~A3, Class A~~Cut-~~IO,~~Off ~~Class~~Date”) ~~M1,~~of ~~Class M2~~$170,286,917.47 ~~Class~~identified ~~M3,~~on ~~Class~~the ~~M4,~~Mortgage ~~Class~~Loan ~~M5,~~Schedule ~~Class~~attached B,as ~~Class~~Schedule P,I ~~Class~~to Xthe ~~and~~Transfer ~~Class~~Supplement ~~R. The~~(the ~~Certificates~~“Subsequent ~~evidence~~Mortgage ~~all~~Loans”), offor ~~the~~inclusion ~~beneficial~~in ~~ownership~~Structured ~~interest~~Asset inInvestment aLoan ~~trust~~Trust ~~fund~~2003-BC11 (the “Trust Fund”). The ~~that~~Trust ~~consists~~Fund ~~primarily~~was ofestablished ~~two~~pursuant ~~pools~~to ofa ~~certain~~Trust ~~conventional,~~Agreement ~~first~~dated ~~and~~as ~~second~~of ~~lien,~~October ~~fixed and adjustable rate~~1, ~~fully~~2003 ~~amortizing~~(the ~~and~~“Trust ~~balloon~~Agreement”), ~~residential~~among ~~mortgage loans (~~the ~~“Mortgage~~Depositor, ~~Loans”)~~LaSalle ~~with~~Bank anNational ~~aggregate~~Association, ~~outstanding~~as ~~principal~~trustee, ~~balance~~Aurora ofLoan ~~approximately~~Services $1Inc.,~~850,991,649~~ as ofmaster ~~October 1~~servicer, ~~2003~~Wells ~~and~~Fargo ~~approximately~~Bank ~~$172~~Minnesota,~~946~~ National Association,~~437~~ ofas ~~funds~~securities ~~held~~administrator inand ~~two~~The ~~pre-funding~~Murrayhill ~~accounts~~Company, ~~together~~as ~~with~~credit ~~certain~~risk ~~other assets~~manager. Capitalized terms used herein and not otherwise defined shall have the meanings ~~assigned~~ascribed to them in the Trust Agreement.

Item 7. Financial Statements; Pro Forma Financial Information and Exhibits

(a)

Not applicable.

(b)

Not applicable.

(c)

Exhibits:

4.1

Trust Agreement dated as of October 1, 2003, among Structured Asset Securities Corporation, as Depositor, Aurora Loan Services Inc., as Master Servicer, The Murrayhill Company, as Credit Risk Manager, Wells Fargo Bank Minnesota, National Association, as Securities Administrator, and LaSalle Bank National Association, as Trustee.

99.1

~~Mortgage~~Transfer ~~Loan~~Supplement ~~Sale~~No. ~~and~~1 ~~Assignment Agreement~~ dated as of ~~October~~November 1, 2003, between ~~Lehman~~Structured ~~Brothers~~Asset ~~Holdings~~Securities ~~Inc.~~Corporation, as ~~Seller~~depositor, and ~~Structured~~Lehman ~~Asset~~Brothers ~~Securities~~Holdings ~~Corporation~~Inc., as ~~Purchaser~~seller.

99.2

Securitization Servicing Agreement dated as of October 1, 2003, by and among Lehman Brothers Holdings Inc., as Seller, Aurora Loan Services Inc., as Master Servicer, and Ocwen Federal Bank FSB, as Servicer and Sub-Servicing Side Letter Agreement dated as of October 1, 2003 between Lehman Brothers Holdings Inc. and Ocwen Federal Bank FSB.

99.3

Servicing Agreement dated as of October 1, 2003, among Lehman Brothers Holdings Inc., as Seller, Aurora Loan Services Inc., as Master Servicer, and Option One Mortgage Corporation, as Servicer.

99.4

Subservicing Agreement dated as of October 1, 2003, among Lehman Brothers Holdings Inc., as Seller, Aurora Loan Services Inc., as Master Servicer, and Option One Mortgage Corporation, as Servicer.

99.5

Securitization Servicing Agreement dated as of October 1, 2003, among Lehman Brothers Holdings Inc., as Seller, Aurora Loan Services Inc., as Master Servicer, and Chase Manhattan Mortgage Corporation, as Servicer.

99.6

Reconstituted Servicing Agreement dated as of October 1, 2003, among Lehman Brothers Holdings Inc., as Seller, Wells Fargo Home Mortgage, Inc., as Servicer, and Aurora Loan Services Inc., as Master Servicer and Securitization Subservicing Agreement dated as of October 1, 2003, among Lehman Brothers Holdings Inc., as Seller, Wells Fargo Home Mortgage, Inc., as Servicer and Aurora Loan Services Inc., as Master Servicer.

99.7

Mortgage Guaranty Insurance Corporation (“MGIC”) Master Policy (No. 12-670-4-3487), including Terms and Conditions No. 71-7135 and Endorsements No. 71-70192 and No. 71-70201 and the MGIC Commitment Certificates covering approximately $324 million aggregate principal balance of insurable Mortgage Loans.

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/ Ellen V. Kiernan

Name: Ellen V. Kiernan

Title: Senior Vice President

Dated: November ~~October 31~~21, 2003

EXHIBIT INDEX

Exhibit No.

Exhibit No.	Description	Page No.
99.1	Transfer Supplement No. 1 dated as of November 1, 2003, between Structured Asset Securities Corporation, as depositor and Lehman Brothers Holdings Inc., as seller.	6

Description

4.1

Filing Compare · STRUCTURED ASSET SEC CORP MORT PASS THR CERTS SER 2003-BC11