Ownership Submission
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 OF SECURITIES

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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(Print or Type Responses)
1. Name and Address of Reporting Person *
MARTIN WILLIAM C
  2. Issuer Name and Ticker or Trading Symbol
TIDEWATER INC [TDW]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 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 (Month/Day/Year)
11/15/2018
(Street)

ROCKY HILL, NJ 08553
4. If Amendment, Date Original Filed(Month/Day/Year)
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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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, $0.001 par value (1) 11/15/2018   A   6,086 (2) A (5) 6,086 (2) I By Raging Offshore
Common Stock, $0.001 par value (1) 11/15/2018   A   2,413,379 (3) A (6) 2,413,379 (3) I By RC GLF
Common Stock, $0.001 par value (1) 11/15/2018   A   59 A (7) 59 D  

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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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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
(Month/Day/Year)
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
Warrants (right to buy) (1) $ 100 11/15/2018   A   65,792 (2)   11/15/2018   (8) Common Stock, $0.001 par value 65,792 (2) (8) 65,792 (2) I By Raging Offshore
Warrants (right to buy) (1) $ 100 11/15/2018   A   99,097 (4)   11/15/2018   (9) Common Stock, $0.001 par value 99,097 (4) (9) 99,097 (4) I By Raging QP
Warrants (right to buy) (1) $ 100 11/15/2018   A   644   11/15/2018   (10) Common Stock, $0.001 par value 644 (10) 644 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, NJ 08553
  X      
Raging Capital Management, LLC
TEN PRINCETON AVENUE
PO BOX 228
ROCKY HILL, NJ 08553-0228
  X      

Signatures

 By: /s/ Frederick C. Wasch as attorney-in-fact for William C. Martin   11/19/2018
**Signature of Reporting Person Date

 By: Raging Capital Management, LLC, By: /s/ Frederick C. Wasch, Chief Financial Officer   11/19/2018
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) This Form 4 is filed jointly by Raging Capital Management, LLC ("Raging Capital") and William C. Martin (collectively, the "Reporting Persons"). Mr. Martin is the Chairman, Chief Investment Officer and Managing Member of Raging Capital. 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 Offshore Fund, Ltd. ("Raging Offshore"). Raging Offshore has delegated to Raging Capital sole investment authority with respect to the securities held by Raging Offshore 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 Raging Offshore. Raging Offshore 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.
(3) Held directly by RC GLF 1, LP ("RC GLF"). RC GLF has delegated to Raging Capital sole investment authority with respect to 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.
(4) Held directly by Raging Capital Fund (QP), LP ("Raging QP"). Raging QP has delegated to Raging Capital sole investment authority with respect to the securities held by Raging QP pursuant to 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 Raging QP. Raging QP 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) Acquired pursuant to the closing of the transactions contemplated by the Agreement and Plan of Merger between GulfMark Offshore, Inc. ("GulfMark") and the Issuer, dated July 15, 2018 (the "Merger"), in exchange for 5,533 shares of common stock of GulfMark.
(6) Acquired pursuant to the Merger in exchange for 2,193,981 shares of common stock of GulfMark.
(7) Acquired pursuant to the Merger in exchange for 54 shares of common stock of GulfMark.
(8) Warrants exercisable into 59,811 shares of common stock of GulfMark were assumed by the Issuer pursuant to the Merger and automatically converted into the right to receive the reported number of shares of common stock of the Issuer upon payment to the Issuer of the exercise price ($100 per share), subject to the other terms and conditions of the GulfMark warrant agreement, and the right to receive cash in lieu of a fraction of one share of the Issuer.
(9) Warrants exercisable into 90,089 shares of common stock of GulfMark were assumed by the Issuer pursuant to the Merger and automatically converted into the right to receive the reported number of shares of common stock of the Issuer upon payment to the Issuer of the exercise price ($100 per share), subject to the other terms and conditions of the GulfMark warrant agreement, and the right to receive cash in lieu of a fraction of one share of the Issuer.
(10) Warrants exercisable into 586 shares of common stock of GulfMark were assumed by the Issuer pursuant to the Merger and automatically converted into the right to receive the reported number of shares of common stock of the Issuer upon payment to the Issuer of the exercise price ($100 per share), subject to the other terms and conditions of the GulfMark warrant agreement, and the right to receive cash in lieu of a fraction of one share of the Issuer.

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