Company: HOUS
Filing Date: 2025-09-22
Form Type: 425
Source: 0001193125-25-209980
Chunk: 0

Company: Anywhere Real Estate Inc.
Filing Date: 2025-09-22
Form: 425
Chunk 0
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION 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): September 22, 2025 Compass, Inc. (Exact name of Registrant as Specified in Its Charter)

| Delaware                     |     | 001-40291   |     | 30-0751604         |
| (State or Other Jurisdiction 
 of Incorporation)            |     | -Commission 
 File Number |     | -IRS Employer      
 Identification No. |

| 110 Fifth Avenue, 4th Floor              
 New York, New York                       |     |     10011 |
| (Address of Principal Executive Offices) |     | -Zip Code |

Registrant’s Telephone Number, Including Area Code: (212) 913-9058 Not Applicable (Former Name or Former Address, if Changed Since Last Report) Check the appropriate box below if the Form 8-Kfiling is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General 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  |     | Name of Each Exchange       
 on Which Registered         |
| Class A Common Stock, $0.00001 par value per share |     | COMP    |     | The 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-2of the Securities Exchange Act of 1934 (§240.12b-2of this chapter). Emerging