FORM 10-K ☒ANNUAL REPORT PURSUANT TO SECTION13 OR 15(d) OF THE SECURITIES EXCHANGE ACTOF 1934 For the fiscal year endedDecember 31, 2025OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGEACT OF 1934 Commission File Number: 001-36853 ZILLOW GROUP, INC. (Exact name of registrant as specified in its charter)_____________________________________________________ 1301 Second Avenue, Floor 36,Seattle, Washington 98101(Address of principal executive offices) (Zip Code)(206) 470-7000(Registrant’s telephone number, including area code) 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 theAct.Yes☐No☒ Indicate by check mark whether the registrant (1)has filed all reports required to be filed by Section13 or 15(d) of the SecuritiesExchange 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 pursuantto Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant wasrequired 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 reportingcompany, 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 filer☒Non-accelerated filer☐ Acceleratedfiler☐Smallerreportingcompany☐Emerging growth company☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section13(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 ofits internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered publicaccounting 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 registrantincluded 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-basedcompensation 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☒ As of June30, 2025, the last business day of the Registrant’s most recently completed second fiscal quarter, the aggregate market valueof the Registrant’s ClassA common stock and Class C capital stock held by non-affiliates based upon the closing price of such shares on TheNasdaq Global Select Market on such date was $14.9 billion. As of February4, 2026, 45,893,777 shares of ClassA common stock, 6,217,447 shares of Class B common stock, and 187,816,992shares of Class C capital stock were outstanding. DOCUMENTS INCORPORATED BY REFERENCE The information required by PartIII of this Report, to the extent not set forth herein, is incorporated in this Report by reference to theRegistrant’s definitive proxy statement relating to the 2026 annual meeting of shareholders. The definitive proxy statement will be filed withthe Securities and Exchange Commission within 120days after the end of the 2025 fiscal year. ZILLOW GROUP, INC. Annual Report on Form 10-Kfor the Fiscal Year Ended December 31, 2025 TABLE OF CONTENTS PARTI Item1.BusinessItem1A.Risk FactorsItem 1B.Unresolved Staff CommentsItem 1C.CybersecurityItem 2.PropertiesItem3.Legal ProceedingsItem4.Mine Safety Disclosures PARTII Item5.Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities39Item6.[Reserved]41Item7.Management’s Discussion and Analysis of Financial Condition and Results of Operations42Item 7A.Quantitative and Qualitative Disclosures About Market Risk58Item 8.Financial Statements and Supplementary Data60Item 9.Changes in and Disagreements with Accountants on Accounting and Financial Disclosure98Item 9A.Controls and Procedures98Item 9B.Other Information100Ite