ONESPAWORLD HOLDINGS Ltd

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

(Mark One)

For the fiscal year ended December 31,2024

OR

For the transition period from to

Commission File Number:001-38843

OneSpaWorld Holdings Limited

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (242)322-2670

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

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.☐ Yes☒ No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.☐ Yes☒ No

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.☒ Yes ☐ No.

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).☒ Yes ☐ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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.☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements.☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).☐ Yes☒ No

The aggregate market value of the registrant’s common shares held by non-affiliates was $1,550,948,121 as of June 28, 2024, based on the closing price of the common stock on the Nasdaq Capital Market on June 28, 2024, which is the last business day of the registrant’s most recently completed second fiscal quarter. Shares of the registrant’s common stock held by each director and executive officer and by each entity or person that, to the registrant’s knowledge, owned 10% or more of the registrant’s outstanding common shares as of June 28, 2024 have been excluded from this number in that these persons may be deemed affiliates of the registrant. This determination of affiliate status is not necessarily conclusive for other purposes.

As of February 20, 2025, the registrant had 104,667,247 voting shares of common stock issued and outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s Definitive Proxy Statement relating to the 2025 Annual Meeting of Shareholders are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. The registrant’s Definitive Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the end of the registrant’s fiscal year ended December 31, 2024.

TABLE OFCONTENTS

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OneSpaWorld Holdings Limited (“OneSpaWorld,” the “Company,” “we,” “our,” “us” and other similar terms refer to OneSpaWorld Holdings Limited and its consolidated subsidiaries).

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

From time to time, including in this report and other disclosures, we may issue “forward-looking” statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). These forward-looking statements reflect our current views about future events and are subject to known and unknown risks, uncertainties and other factors which may cause our actual results to differ materially from those expressed or implied by such forward-looking statements. We attempt, whenever possible, to identify these statements by using words like “will,” “may,” “could,” “should,” “would,” “believe,” “expect,” “anticipate,” “forecast,” “future,” “intend,” “plan,” “estimate” and similar expressions of future intent or the negative of such terms.

Such forward-looking statements include statements impacted by or statements regarding:

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the potential impact of outbreaks of illnesses on the industries in which the Company operates and the Company’s business, operations, results of operations and financial condition, including cash flows and liquidity;

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the demand for the Company’s services together with the possibility that the Company may be adversely affected by other economic, business, and/or competitive factors or changes in the business environment in which the Company operates;

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changes in consumer preferences or the markets for the Company’s services and products;

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changes in applicable laws or regulations;

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competition for the Company’s services and the availability of competition for opportunities for expansion of the Company’s business;

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difficulties of managing growth profitably;

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the loss of one or more members of the Company’s management team;

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changes in the market for the products we offer for sale;

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other risks and uncertainties included from time to time in the Company’s reports (including all amendments to those reports) filed with the U.S. Securities and Exchange Commission;

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other risks and uncertainties indicated in this Annual Report on Form 10-K, including those set forth under the section entitled “Risk Factors”; and

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other statements preceded by, followed by or that include the words “estimate,” “plan,” “project,” “forecast,” “intend,” “expect,” “anticipate,” “believe,” “seek,” “target” or similar expressions.

These forward-looking statements are based on information available as of the date of this report and current expectations, forecasts and assumptions, and involve a number of judgments, risks and uncertainties. Accordingly, forward-looking statements should not be relied upon as representing our views as of any subsequent date. We do not undertake any obligation to update forward-looking statements to reflect events or circumstances after the date they were made, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

As a result of known and unknown risks and uncertainties, our actual results or performance may be materially different from those expressed or implied by these forward-looking statements. For a discussion of the risks involved in our business and investing in our common shares, see the section entitled “Risk Factors.”

Should one or more of these risks or uncertainties materialize, or should any of the assumptions underlying our forward-looking statements prove incorrect, actual results may vary in material respects from those expressed or implied by these forward-looking statements. You should not place undue reliance on these forward-looking statements.