X0306 4 2021-07-29 0000906107 EQUITY RESIDENTIAL EQR 0001219726 NEITHERCUT DAVID J TWO NORTH RIVERSIDE PLAZA, SUITE 400 CHICAGO IL 60606 1 Common Shares Of Beneficial Interest 2021-07-29 4 M 0 1721 45.28 A 4595 I Family Limited Partnership Common Shares Of Beneficial Interest 2021-07-29 4 S 0 1721 85.00 D 2874 I Family Limited Partnership Common Shares Of Beneficial Interest 3392 D Common Shares Of Beneficial Interest 56464 I Trust I Non-qualified Stock Option (Right to Buy) 45.28 2021-07-29 4 M 0 1721 0 D 2016-02-01 2021-09-23 Common Shares Of Beneficial Interest 1721 108912 I Family Limited Partnership Represents shares beneficially owned by a family limited partnership, of which the reporting person is the general partner. The price represents the weighted average price of the shares sold. The shares were sold within a range of $85.00 to $85.02. The reporting person will provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price. Represents shares beneficially owned by a trust for the benefit of the reporting person's wife. The reporting person is the sole trustee of this trust and, as such, may be deemed the beneficial owner of these shares. /s/ Samantha Thompson, Attorney-in-fact 2021-08-02