Securities registered pursuant to Section 12(g) of the Act:None Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 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 12months (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 (§232.405 ofthis 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, 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.Large accelerated filerAccelerated filer ☐Non-accelerated filer☐Emerging growth company☐ Smaller reporting 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 financialaccounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ 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 correctionof 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 Exchange Act). YES☐NO☒ The aggregate market value of the Common Stock held by non-affiliates of the Registrant, based on the closing price of the shares of Common Stock on The New York StockExchange on June 30, 2025, the last business day of the Registrant’s most recently completed second quarter, was $60.7 million. 185,452,826 shares of the Registrant’s Common Stock, which were held by the Registrant’s executive officers and directors and by certain investment funds affiliated with ormanaged by Onex Partners as of June 30, 2025 have been excluded from this calculation in that these persons or entities may be deemed affiliates of the registrant. This assumptionregarding affiliate status is not necessarily a conclusive determination for other purposes.The number of shares of Registrant’s Common Stock outstanding as of March 11, 2026 was 197,908,778. DOCUMENTS INCORPORATED BY REFERENCE Portions of the Registrant’s Definitive Proxy Statement relating to the 2026 Annual Meeting of Stockholders, are incorporated by reference into Part III of this Report. TheRegistrant’s Definitive Proxy Statement will be filed with the Securities and Exchange Commission within 120 days of the registrant’s fiscal year ended December 31, 2025. Table of Contents PART I Item 1.Business2Item 1A.Risk Factors10Item 1B.Unresolved Staff Comments26Item 1C.Cybersecurity26Item 2.Properties27Item 3.Legal Proceedings27Item 4.Mine Safety Disclosures27 PART II Item 5.Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities28Item 6.Selected Financial Data29Item 7.Management’s Discussion and Analysisof Financial Condition and Results of Operations34Item 7A.Quantitative and Qualitative Disclosures About Market Risk58Item 8.Financial Statements and Supplementary Data59Item 9.Changes in and Disagreements With Accountants on Accounting and Financial Disclosure115Item 9A.Controls and Procedures115Item 9B.Other Information116Item 9C.Disclosure Regarding Foreign Jurisdictions that Prevent Inspections116 PART III Item 10.Directors, Executive Officers and Corporate Governance117Item 11.Executive Compensation117Item 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters117Item 13.Certain Relationships and Related Transactions, and Director Independence117Item 14.Principal Accounting Fees and Services117 PART IV Item 15.Exhibits, Financial Statement Schedules118Item 16.Form 10-K Summary118 This Annual Report on Form 10-K contains forward-looking statements within the meaning of the U.S. Private SecuritiesLitigation Reform Act of 1995. You can generally identify forward-looking statements by our use of forward-looking terminology suchas “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend