UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549
__________

FORM 10-K

ANNUAL REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

(Mark One)

[X] ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the fiscal year ended December 31, ~~2018~~2019

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934

For the transition period from __________ to __________

Commission File Numbers 333-165725, 001-34978

SATURNS Trust No. 2010-04 (IP)

0001505890

(CIK number of Issuing Entity)

MS STRUCTURED ASSET CORP., as Depositor and Sponsor

(Exact name of registrant as specified in its charter)

0001071246

(CIK number of Depositor and Sponsor)

Delaware	13-4026700
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)

1585 Broadway, Second Floor New York, New York Attention: In-Young Chase	10036
(Address of principal executive office)	(Zip Code)

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

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	~~Name~~Trading ~~of Each Exchange on Which Registered~~Symbol	Name of Each Exchange on Which Registered
SATURNS Floating Rate Trust Series 2010-04 (IP)	~~New York Stock Exchange~~MS21	New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ___ No X

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. Yes ___ No X

Indicate by check mark whether registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes X No ___

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ___ No ___

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. [ ]

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ___ Accelerated filer ___ Non-accelerated filer X Smaller reporting company ___

Emerging growth company ___

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ___

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ___ No X

All of the ~~common~~ common stock of the registrant is held by Morgan Stanley. As of March 2130, ~~2019~~2020, 1,000 shares of common stock, par value $1.00 per share, were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE:

The following reports of Morgan Stanley pursuant to Item 1115(b): Quarterly Report on Form 10-Q for the quarterly period ended June 30, ~~2018~~2019; Quarterly Report on Form 10-Q for the quarterly period ended September 30, ~~2018~~2019; Annual Report on Form 10-K for the fiscal year ended December 31, ~~2018~~2019; and all other documents subsequently filed by Morgan Stanley pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, during the fiscal year covered by this Report on Form 10-K, which contain financial statements of Morgan Stanley or which amend the foregoing reports.

PART I

ITEM 1. BUSINESS

Not Applicable

ITEM 1A. RISK FACTORS

Not Applicable

ITEM 1B. UNRESOLVED STAFF COMMENTS

None

ITEM 2. PROPERTIES

Not Applicable

ITEM 3. LEGAL PROCEEDINGS

Not Applicable

ITEM 4. RESERVED

PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Not Applicable

ITEM 6. SELECTED FINANCIAL DATA

Not Applicable

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Not Applicable

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Not Applicable

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Not Applicable

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

Not Applicable

ITEM 9A. CONTROLS AND PROCEDURES

Not Applicable

ITEM 9B. OTHER INFORMATION

None

PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

Not Applicable

ITEM 11. EXECUTIVE COMPENSATION

Not Applicable

Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

Not Applicable

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

Not Applicable

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

Not Applicable

ADDITIONAL DISCLOSURE ITEMS PURSUANT TO REGULATION AB

ITEM 1112(b). SIGNIFICANT OBLIGORS OF POOL ASSETS

International Paper Company, the underlying security guarantor with respect to the Units, is a “significant obligor” with respect to the assets of the Trust for purposes of Item 1112 of Regulation AB. For any financial statements of International Paper Company required to be provided under Regulation S-X during the period since the initial issuance of the Units, this Form 10-K report refers, pursuant to Item 1100(c)(2) of Regulation AB, to the periodic reports of International Paper Company under section 13(a) or 15(d) of the Exchange Act (“Underlying Security Issuer Exchange Act Reports”) that are on file with the Securities and Exchange Commission (the “SEC”). Such Underlying Security Issuer Exchange Act Reports may be accessed at the public reference facilities maintained by the SEC at Room 1024, 100 F Street, NE, Washington, D.C. 20549. Copies of those materials can be obtained by making a written request to the SEC, Public Reference Section, 100 F Street, NE, Washington, D.C. 20549, at prescribed rates. The SEC also maintains a website on the internet at http://www.sec.gov at which users can view and download copies of reports, proxy, information statements and other information filed electronically. The SEC file number for International Paper Company is 333-157573.

The underlying security guarantor financial statements and Underlying Security Issuer Exchange Act Reports referred to above are not incorporated by reference in this Form 10-K report; and the Trust, the Trustee, the depositor, the sponsor and their affiliates have not verified, have not undertaken to verify, and will not verify, the content of any such underlying security guarantor financial statements or Underlying Security Issuer Exchange Act Reports.

ITEM 1114(b)(2). CREDIT ENHANCEMENT AND OTHER SUPPORT, EXCEPT FOR CERTAIN DERIVATIVES INSTRUMENTS

None

ITEM 1115(b). CERTAIN DERIVATIVES INSTRUMENTS – FINANCIAL INFORMATION

Not Applicable

ITEM 1117. LEGAL PROCEEDINGS

None

ITEM 1119. AFFILIATIONS AND CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

Morgan Stanley Capital Services Inc., which is the derivative counterparty to the 2010-04 (IP) Trust under an interest rate swap transaction, is an affiliate of the Depositor, MS Structured Asset Corp.

ITEM 1122. COMPLIANCE WITH APPLICABLE SERVICING CRITERIA

See Exhibits 33.1 and 34.1 to this Annual Report.

The Bank of New York Mellon’s Report on Assessment of Compliance with Servicing Criteria for 2019 attached to this Report on Form 10-K describes in Schedule B the following material instance of noncompliance related to investor reporting:

“1122(d)(3)(i)(A): Reports to investors, including those to be filed with the Commission, are maintained in accordance with the transaction agreements and applicable Commission requirements. Specifically, such reports are prepared in accordance with timeframes and other terms set forth in the transaction agreements.

1122(d)(3)(i)(A):

Noncompliance:

During the Period, certain reports to investors were not prepared in accordance with the timeframes set forth in the transaction agreements.”

See Exhibit 33.1 to this Annual Report for information relating to noncompliance and remediation.

ITEM 1123. SERVICER COMPLIANCE STATEMENT

See Exhibit 35.1 to this Annual Report.

PART IV

ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a) The following documents are filed as part of this Report:

(1) Financial Statements: Distribution Reports on Form 10-D are hereby incorporated by reference. See the table below:

SATURNS Trust No.:	Closing Date	Collateral	Payment Dates	Form 10-D Filing Dates For FY ~~2018~~2019
2010-04 (IP)	12/9/2010	International Paper Company	February 15, May 15, August 15 and November 15	~~February~~March 236, ~~2018~~2019, May 2330, ~~2018~~2019, August 2829, ~~2018~~2019 and November 27, ~~2018~~2019

(2) Financial Statement Schedules pursuant to Item 8: Not Applicable

(3) Exhibits:

Exhibit 31.1 Rule 13a-14(d) Certification

Exhibit 4.1	For a description of the securities of the SATURNS Trust No. 2010-04 (IP), see Prospectus Supplement (To Prospectus dated March 25, 2010) dated as of December 7, 2010 filed by the Depositor with the SEC on December 7, 2010 and incorporated here by reference.
Exhibit 31.1	Rule 13a-14(d) Certification
Exhibit 33.1	Report of The Bank of New York Mellon on Assessment of Compliance with Servicing Criteria for Asset-Backed Securities
Exhibit 34.1	Attestation Report of KPMG, LLP on Assessment of Compliance with Servicing Criteria for Asset-Backed Securities
Exhibit 35.1	Statement of Compliance of The Bank of New York Mellon, as Trustee

Exhibit 33.1 Report of The Bank of New York Mellon on Assessment of Compliance with Servicing Criteria for Asset-Backed Securities

Exhibit 34.1 Attestation Report of KPMG, LLP on Assessment of Compliance with Servicing Criteria for Asset-Backed Securities

Exhibit 35.1 Statement of Compliance of The Bank of New York Mellon, as Trustee

(b) Exhibits: See Item 15(a)(3) above

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: March 2231, ~~2019~~2020

MS STRUCTURED ASSET CORP.
(Registrant)

By: /s/In-Young Chase

Name: In-Young Chase

Title:

Vice President

Filing Compare · MS Structured Floating Rate Trust Series 2010-04 (IP)