Sec Form 4 Filing - Mast Capital Management, LLC @ Great Elm Capital Corp. - 2017-05-08

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Mast Capital Management, LLC 2. Issuer Name and Ticker or Trading Symbol Great Elm Capital Corp. [ GECC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 200 CLARENDON STREET, 51ST FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 05/08/2017 (Street) BOSTON, MA02116 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 05/08/2017 J( 1 ) 162,345 D $ 11.5 2,494,139 I See footnotes ( 2 ) ( 3 ) ( 4 ) Common Stock 05/08/2017 J( 1 ) 302,543 D $ 11.5 2,802,018 I See footnotes ( 3 ) ( 4 ) ( 5 ) Common Stock 05/08/2017 J( 1 ) 17,030 D $ 11.5 157,725 I See footnotes ( 3 ) ( 4 ) ( 6 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Mast Capital Management, LLC 200 CLARENDON STREET 51ST FLOOR BOSTON, MA02116 X Steinberg David J. 200 CLARENDON STREET 51ST FLOOR BOSTON, MA02116 X Signatures MAST CAPITAL MANAGEMENT, LLC, By: /s/ David J. Steinberg, Name: David J. Steinberg, Title: Authorized Signatory 05/19/2017 Signature of Reporting Person Date /s/ David J. Steinberg 05/19/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The transactions reported herein are the disposition of Common Stock, $0.01 Par Value, of Great Elm Capital Corp., a Maryland corporation (the "Common Stock" and the "Issuer"), pursuant to a self-tender conducted by the Issuer. ( 2 )Represents shares of Common Stock held directly by Mast Credit Opportunities I Master Fund Limited, for which MAST Capital Management, LLC ("Mast Capital") is the investment manager. ( 3 )As the investment advisor of the private investment funds disclosed herein (collectively, the "MAST Accounts"), MAST Capital may be deemed to be the beneficial owner of the shares of Common Stock held by the MAST Accounts. MAST Capital also has the right to an asset-based fee relating to the MAST Accounts. Pursuant to Rule 16a-1, MAST Capital disclaims such beneficial ownership, except to the extent of its pecuniary interest therein. ( 4 )Mr. Steinberg may also be deemed to beneficially own the shares of Common Stock beneficially owned (or deemed to be beneficially owned) by MAST Capital, as he is the principal of MAST Capital. Pursuant to Rule 16a-1, Mr. Steinberg disclaims such beneficial ownership, except to the extent of his pecuniary interest therein. ( 5 )Represents shares of Common Stock held directly by Mast Select Opportunities Master Fund, L.P., for which MAST Capital is the investment manager. ( 6 )Represents shares of Common Stock held directly by Mast Admiral Master Fund, L.P., for which MAST Capital is the investment manager.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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