Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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 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 * Kneen Quintin 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 __X__ Officer (give title below) _____ Other (specify below) DIRECTOR, PRESIDENT & CEO (Last) (First) (Middle) 842 WEST SAM HOUSTON PARKWAY NORTH, SUITE 400 3. Date of Earliest Transaction (Month/Day/Year) 03/18/2026 (Street) HOUSTON, TX 77024 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ 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 03/18/2026 A 65,938(1) A $75.27 373,453 D Common Stock, $0.001 par value 03/18/2026 F 25,965(2) D $75.27 347,488 D Common Stock, $0.001 par value 03/18/2026 A 25,575(3) A $75.27 373,063 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Kneen Quintin 842 WEST SAM HOUSTON PARKWAY NORTH SUITE 400 HOUSTON, TX 77024	X		DIRECTOR, PRESIDENT & CEO

Signatures

/s/ Daniel A. Hudson, Attorney-in-Fact		03/20/2026
**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)	Shares earned upon vesting and settlement of Performance Restricted Stock Units ("PRSUs") awarded on March 16, 2023, that measured the relative TSR of Tidewater Inc. (the "Issuer") against a predetermined peer group for the three-year period beginning January 1, 2023 through December 3, 2025. On March 18, 2026, the Compensation & Human Capital Committee of the Issuer certified the relative TSR performance at 75%, resulting in the PSUs originally granted becoming earned at 150% of the target amount granted.
(2)	Shares withheld for payment of taxes in connection with the vesting and settlement of the PRSUs described in footnote 1 above.
(3)	Represents a grant of restricted stock units that vest pro-rata per year on each of March 22, 2027, 2028, and 2029.

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