144 0002022961 XXXXXXXX LIVE 0001563190 Compass, Inc. 001-40291 110 Fifth Avenue, 4th Floor New York NY 10011 212-913-9058 The RR1 WY Trust Affiliate Class A Common Stock J.P. Morgan Securities LLC

390 Madison Avenue, 6th Floor New York NY 10017

47766 383561 525865413 10/01/2025 NYSE Class A Common Stock 08/19/2021 Distribution from The RR1 Trust The RR1 Trust (CSA-625) N 15366 08/19/2021 N/A Class A Common Stock 08/19/2021 Distribution from The RR1 Trust The RR1 Trust (CSA-699) N 165000 08/19/2021 N/A Class A Common Stock 08/19/2021 Distribution from The RR1 Trust The RR1 Trust (CSA-697) N 201750 08/19/2021 N/A N The RR1 WY Trust

C/o Compass, Inc. 110 Fifth Avenue, 4th Floor New York NY 10011

Class A Common Stock 08/01/2025 15922 123276 The RR1 WY Trust

C/o Compass, Inc. 110 Fifth Avenue, 4th Floor New York NY 10011

Class A Common Stock 09/02/2025 15922 141721 The RR3 WY Trust

C/o Compass, Inc. 110 Fifth Avenue, 4th Floor New York NY 10011

Class A Common Stock 08/01/2025 24099 186586 The RR3 WY Trust

C/o Compass, Inc. 110 Fifth Avenue, 4th Floor New York NY 10011

Class A Common Stock 09/02/2025 24099 214504 The ER WY Trust

C/o Compass, Inc. 110 Fifth Avenue, 4th Floor New York NY 10011

Class A Common Stock 05/01/2025 7859 61992 The ER WY Trust

C/o Compass, Inc. 110 Fifth Avenue, 4th Floor New York NY 10011

Class A Common Stock 06/02/2025 7859 46086 The shares to be sold pursuant to this Form are held by trusts set up for the benefit of the family of Robert Reffkin, CEO of Compass, Inc. Although these shares are affiliated with Robert Reffkin for purposes of Rule 144, the disposition of these shares is not controlled by Mr. Reffkin and instead are controlled by an independent trustee who will decide if, when and how these shares are sold. 10/01/2025 05/10/2024 /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for The RR1 WY Trust