Sec Form 4 Filing - MARTIN WILLIAM C @ GULFMARK OFFSHORE INC - 2017-12-21

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 MARTIN WILLIAM C 2. Issuer Name and Ticker or Trading Symbol GULFMARK OFFSHORE INC [ GLF] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O RAGING CAPITAL MANAGEMENT, LLC, TEN PRINCETON AVENUE, PO BOX 228 3. Date of Earliest Transaction (MM/DD/YY) 12/21/2017 (Street) ROCKY HILL, NJ08553 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, $0.01 par value ( 1 ) 12/21/2017 S( 6 ) 8,334 D $ 19 0 I ( 2 ) ( 4 ) By Raging QP Common Stock, $0.01 par value ( 1 ) 5,533 I ( 3 ) ( 4 ) By Raging Offshore Common Stock, $0.01 par value ( 1 ) 2,193,981 I ( 5 ) By RC GLF Common Stock, $0.01 par value ( 1 ) 54 D

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 Deriva tive 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 Warrants (right to buy) ( 1 ) $ 100 11/14/2017 11/14/2024 Common Stock, $0.01 par value 149,900 149,900 I ( 2 ) ( 3 ) ( 4 ) By Raging Funds Warrants (right to buy) ( 1 ) $ 100 11/14/2017 11/14/2024 Common Stock, $0.01 par value 586 586 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other MARTIN WILLIAM C C/O RAGING CAPITAL MANAGEMENT, LLC TEN PRINCETON AVENUE, PO BOX 228 ROCKY HILL, NJ08553 X X Raging Capital Management, LLC TEN PRINCETON AVENUE PO BOX 228 ROCKY HILL, NJ08553-0228 X X Signatures By: /s/ Frederick C. Wasch as attorney-in-fact for William C. Martin 12/26/2017 Signature of Reporting Person Date By: Raging Capital Management, LLC, By: /s/ Frederick C. Wasch, Chief Financial Officer 12/26/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )This Form 4 is filed jointly by Raging Capital Management, LLC ("Raging Capital") and William C. Martin (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that collectively owns more than 10% of the Issuer's outstanding shares of common stock (the "Shares"). Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein. Kenneth H. Traub, a Managing Partner at Raging Capital, is a director of the Issuer. Accordingly, each of Raging Capital and Mr. Martin may be deemed to be a director by deputization of the Issuer. ( 2 )Held directly by Raging Capital Fund (QP), LP ("Raging QP"). ( 3 )Held directly by Raging Capital Offshore Fund, Ltd. ("Raging Offshore"). ( 4 )Mr. Martin is the Chairman, Chief Investment Officer and Managing Member of Raging Capital. Raging QP and Raging Offshore (collectively, the "Raging Funds") have delegated to Raging Capital sole investment authority with respect to the securities held by the Raging Funds pursuant to an Investment Management Agreement, dated November 9, 2012 (the "IMA"). The IMA may be terminated by any party thereto effective at the close of business on the last day of any fiscal quarter by giving the other party not less than sixty-one days' written notice. As a result, each of Raging Capital and Mr. Martin may be deemed to beneficially own the securities held by the Raging Funds. Each of the Raging Funds specifically disclaims beneficial ownership of the securities held by it by virtue of its inability to vote or dispose of such securities as a result of the IMA. ( 5 )Held directly by RC GLF 1, LP ("RC GLF"). Raging Capital is the General Partner of RC GLF. Mr. Martin is the Chairman, Chief Investment Officer and Managing Member of Raging Capital. RC GLF has delegated to Raging Capital the sole authority to vote and dispose of the securities held by RC GLF pursuant to its Limited Partnership Agreement, dated July 17, 2017 (the "LPA"), which authority may not be terminated by RC GLF upon less than sixty-one days' written notice to Raging Capital. As a result, each of Raging Capital and Mr. Martin may be deemed to beneficially own the securities held by RC GLF. RC GLF specifically disclaims beneficial ownership of the securities held by it by virtue of its inability to vote or dispose of such securities as a result of the LPA. ( 6 )Represents a sale of all 8,334 shares Raging QP received in exchange for its pre-bankruptcy shares of the Issuer in connection with the Issuer's emergence from bankruptcy on November 14, 2017.

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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