UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

~~WASHINGTON~~Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 2 17, 2026

~~TIDEWATER~~Tidewater ~~INC~~Inc.

(Exact name of ~~Registrant~~ registrant as ~~Specified~~specified in ~~Its~~its ~~Charter~~charter)

Delaware 1-6311 72-0487776

Delaware

1-6311

72-0487776

(State or other jurisdiction

of incorporation)

(Commission
File Number)

(IRS Employer

Identification No.)

(State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

842 West Sam Houston Parkway North, Suite 400

Houston, Texas

77024

(Address of principal executive offices)

(Zip Code)

~~842~~Registrant’s telephone ~~West Sam Houston Parkway North~~number, including ~~Suite~~area ~~400~~code: ~~Houston,~~(713) ~~Texas 77024~~470-5300

(Address of Principal Executive Offices) (Zip Code)

Registrant’s Telephone Number, Including Area Code: (713) 470-5300

Not Applicable

(Former Name or Former Address, ifIf Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction ~~Instructions~~ A.2. below):

☐¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common stock, $0.001 par value per share		TDW		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 ~~of this chapter~~) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 ~~of this chapter~~).

Emerging ~~growth~~Growth ~~company ☐~~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. ☐ ¨

Item 25.02~~. Results~~ Departure of ~~Operations~~Directors ~~and~~or ~~Financial~~Certain ~~Condition~~Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

InResignation ~~accordance with the safe harbor provisions~~ of ~~the~~Darron ~~Private Securities Litigation Reform Act of 1995, Tidewater Inc~~M. (the “Company”) notes that certain statements set forth in this Current Report on Form 8-K provide contain certain forward-looking statements which reflect our current view with respect to future events and future financial performance. Forward-looking statements are all statements other than statements of historical fact. All such forward-looking statements are subject to risks and uncertainties, many of which are beyond the control of the Company, and our future results of operations could differ materially from our historical results or current expectations reflected by such forward-looking statements. These risks and uncertainties include, without limitation: the risks related to fluctuations in worldwide energy demand and oil and natural gas prices, and continuing depressed levels of oil and natural gas prices without a clear indication of if, or when, prices will recover to a level to support renewed offshore exploration activities; fleet additions by competitors and industry overcapacity; our limited capital resources available to replenish our asset base as needed, including through acquisitions or vessel construction, and to fund our capital expenditure needs; uncertainty of global financial market conditions and potential constraints in accessing capital or credit if and when needed with favorable terms, if at all; changes in decisions and capital spending by customers in the energy industry and the industry expectations for offshore exploration, field development and production; consolidation of our customer base; loss of a major customer; changing customer demands for vessel specifications, which may make some of our older vessels technologically obsolete for certain customer projects or in certain markets; rapid technological changes; delays and other problems associated with vessel maintenance; the continued availability of qualified personnel and our ability to attract and retain them; the operating risks normally incident to our lines of business, including the potential impact of liquidated counterparties; our ability to comply with covenants in our indentures and other debt instruments; acts of terrorism and piracy; the impact of regional or global public health crises or pandemics; the impact of potential information technology, cybersecurity or data security breaches; integration of acquired businesses and entry into new lines of business; disagreements with our joint venture partners; natural disasters or significant weather conditions; unsettled political conditions, war, civil unrest and governmental actions, such as expropriation or enforcement of customs or other laws that are not well developed or consistently enforced; the risks associated with our international operations, including local content, local currency or similar requirements especially in higher political risk countries where we operate; interest rate and foreign currency fluctuations; labor changes proposed by international conventions; increased regulatory burdens and oversight; changes in laws governing the taxation of foreign source income; retention of skilled workers; enforcement of laws related to the environment, labor and foreign corrupt practices; the potential liability for remedial actions or assessments under existing or future environmental regulations or litigation; the effects of asserted and unasserted claims and the extent of available insurance coverage; and the resolution of pending legal proceedings.Anderson

On March 217, 2026, Darron M. Anderson notified the Board of Directors (the “Board”) of Tidewater Inc. (the “Company”) ~~issued~~of his anintent ~~earnings~~to ~~release~~not ~~announcing~~stand ~~its~~for ~~financial~~reelection ~~results~~as a Director of the Board at the Company’s 2026 Annual Meeting of Stockholders (the “2026 Annual Meeting”). Mr. Anderson’s decision not to stand for reelection did not result from any disagreement with the Company ~~quarter~~on ~~ended~~any ~~December~~matter 31relating to the Company’s operations, ~~2025~~policies, or practices. ~~The~~Mr. ~~press~~Anderson ~~release~~will iscontinue ~~furnished~~his role as ~~Exhibit~~Director and ~~99.1~~member toof ~~this~~the ~~Current~~Audit ~~Report~~Committee and isSafety ~~incorporated~~& ~~herein~~Sustainability byCommittee ~~reference~~of asthe ifBoard ~~fully~~until ~~set~~the ~~forth~~expiration ~~under~~of ~~this~~his ~~item~~current term at the 2026 Annual Meeting.

~~The~~In ~~information~~connection ~~furnished~~with ~~pursuant to this Item 2~~Mr.~~02,~~ ~~including~~Anderson’s resignation ~~Exhibit~~as ~~99.1,~~a ~~shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934~~director, ~~as amended (“Exchange Act”) or otherwise subject to~~ the ~~liabilities~~size of ~~that section, and shall not be deemed to be incorporated by reference into any filing made by us under~~ the ~~Exchange~~ ~~Act or Securities~~Board ~~Act~~ of ~~1933,~~Directors aswill ~~amended, regardless of any general incorporation language in any such filing, except as shall~~ be ~~expressly~~reduced ~~set~~from ~~forth~~eight byto ~~specific~~seven ~~reference in such filing~~Directors.

Item 9.01. Financial ~~Statements~~Statement and Exhibits.

104 Cover Page Interactive Data File (d)embedded ~~Exhibits~~within the Inline XBRL document)

The following exhibit is furnished with this Form 8-K:

Exhibit Number		Description
99.1		Press Release dated March 2, 2026
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned ~~thereunto~~hereunto duly authorized.

		TIDEWATER INC
	TIDEWATER INC.
Date: March 2, 2026		By:	/s/ Samuel R. Rubio
Date: March 19, 2026	By:	/s/ Daniel A. Hudson
			Samuel R. Rubio
		Daniel A. Hudson
			Executive Vice President and Chief Financial Officer
		Executive Vice President, General Counsel and Corporate Secretary

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