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): December 22, 2011 MS Structured Asset Corp. (Issuer in Respect of SATURNS Trust No. 2003-15) (Exact name of registrant as specified in its charter) Delaware 001-16443 13-4026700 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 1585 Broadway, New York, New York 10036 (Address of principal executive offices, including Zip Code) Registrant's telephone number, including area code: (212) 761-2520 N/A (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 (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Section 8 - Other Events Item 8.01. Other Events. U.S. Bank National Association ("U.S. Bank") succeeded Bank of America N.A. ("Bank of America") as trustee under the Trust Agreement, between MS Structured Asset Corp., as Depositor and U.S. Bank National Association, as Trustee, as successor-in-interest to Bank of America, National Association, as Trustee, as successor by merger to LaSalle Bank National Association, as Trustee, for SATURNS Trust no. 2003-15, dated October 29, 2003, together with Schedules I, II and III attached thereto, and the Standard Terms for Trust Agreements, between MS Structured Asset Corp, as Depositor and U.S. Bank National Association, as Trustee, as successor-in-interest to Bank of America, National Association, as Trustee, as successor by merger to LaSalle Bank National Association, as Trustee dated March 5, 2003. U.S. Bank was appointed trustee under an appointment agreement dated as of December 16,

~~2011~~SECURITIES ~~for~~AND ~~which~~EXCHANGE ~~the final approval was received December 22. 2011. The appointment agreement is being filed as an exhibit.~~ COMMISSION

~~U.S. Bancorp~~Washington, ~~with total assets exceeding $330 billion as of September 30, 2011, is the parent company of U~~D.SC. Bank, the fifth largest commercial bank in the United States. As of September 30, 2011, U.S. Bancorp served approximately 17 million customers and operated over 3,000 branch offices in 25 states. A network of specialized U.S. Bancorp offices across the nation provides a comprehensive line of banking, brokerage, insurance, investment, mortgage, trust and payment services products to consumers, businesses, governments and institutions. 20549

~~U.S.~~FORM Bank has one of the largest corporate trust businesses in the country with office locations in 48 Domestic and 3 International cities. The Trust Agreement will be administered from U.S. Bank's corporate trust office located in Chicago, Illinois. 8-K

~~U.S.~~CURRENT Bank has provided corporate trust services since 1924. As of September 30, 2011, U.S. Bank was acting as trustee with respect to over 84,000 issuances of securities with an aggregate outstanding principal balance of over $3.2 trillion. This portfolio includes corporate and municipal bonds, mortgage-backed and asset-backed securities and collateralized debt obligations. REPORT

OnPursuant December 30, 2010, U.S. Bank National Association purchased the domestic and European-based securitization trust administration businesses of Bank of America, National Association. Following the closing of the acquisition, U.S. Bank succeeded to ~~the~~Section ~~duties~~13 ofOR ~~the~~15(d) ~~Bank~~ of ~~America~~The ~~affiliate~~Securities ~~serving~~Exchange asAct trustee or agent, as applicable, under each client agreement except with respect to those transactions that require additional steps to be taken to transfer the appointments in accordance with the terms of the governing instrument or agreement or applicable law. Under the terms of the agreement, U.S. Bank Corporate Trust Services acquired approximately 2,150 active securitization and related transactions, which include custodial services with respect to more than 2.4 million residential mortgage files and 84,000 commercial mortgage files, and which include more than $1.1 trillion in underlying assets. 1934

~~Section~~Date 9of -Report ~~Financial~~(Date ~~Statements~~of ~~and~~earliest ~~Exhibits Item~~event ~~9.01 Financial Statements and Exhibits. (d~~reported): ~~Exhibits (Exhibit~~June ~~No. Description) 99.~~1, ~~Omnibus Instrument of Appointment and Acceptance of U.S. Bank National Association as Successor Trustee.~~ 2012

MS Structured Asset Corp. (Issuer in Respect of SATURNS Trust No. 2003-15)

(Exact name of registrant as specified in its charter)

Delaware	001-16443	13-4026700
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

Attention: In-Young Chase, 1585 Broadway, New York, New York 10036

(Address of principal executive offices, including Zip Code)

Registrant's telephone number, including area code: (212) 761-2457

N/A

(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 (see General Instruction A.2. below):

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

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

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

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

Section 8 - Other Events

Item 8.01. Other Events.

This current report on Form 8-K relates to the semi annual distribution reported to the holders of SATURNS Trust No. 2003-15, which was made on June 1, 2012.

Section 9 - Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

(Exhibit No. Description)

99.1 Semi annual distribution report pursuant to the Trust Agreement for the distribution on June 1, 2012.

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.

MS Structured Asset Corp. (Depositor)

		U.S. Bank National Association as successor-in-interest to Bank of America, National Association as successor by merger to LaSalle Bank National Association, in its capacity as Trustee Under the Trust Agreement on behalf of MS Structured Asset Corp., Registrant

Date: June 4, 2012	By:	/s/ Thais Hayum
		Name: Thais Hayum
		Title: Vice President

Date: December 28, 2011

By: /s/ In-Young Chase

Name: In-Young Chase

Title: Vice President

Filing Compare · MS STRUCTURED SATURNS SERIES 2003-15