X0304 4 2012-03-13 0 0001067701 UNITED RENTALS INC /DE URI 0001486607 Flannery Matthew John C/O UNITED RENTALS, INC. FIVE GREENWICH OFFICE PARK GREENWICH CT 06831 0 1 0 0 EVP- Operations and Sales Common Stock 2012-03-13 4 F 0 1140 42.645 D 55084 D Common Stock 2012-03-14 4 M 0 13333 3.44 A 68417 D Common Stock 2012-03-14 4 M 0 22334 8.315 A 90751 D Common Stock 2012-03-14 4 M 0 22333 8.315 A 113084 D Common Stock 2012-03-14 4 S 0 58000 42.7387 D 55084 D Stock Option - Right to Buy 3.44 2012-03-14 4 M 0 13333 0 D 2019-03-12 Common Stock 13333 13333 D Stock Option - Right to Buy 8.315 2012-03-14 4 M 0 22334 0 D 2020-03-10 Common Stock 22334 44666 D Stock Option - Right to Buy 8.315 2012-03-14 4 M 0 22333 0 D 2020-03-10 Common Stock 22333 22333 D Securities disposed of represent shares surrendered for tax purposes in connection with the vesting and settlement of restricted stock units granted and previously reported on Form 4. Represents weighted average sale price for executed sale transactions on March 14, 2012. The range of prices for such transactions was from $42.38 to $42.99. The reporting person hereby undertakes, upon request by the Commission staff, the issuer, or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price within the range. In connection with an option award granted to the reporting person on March 13, 2009 and originally reported on Form 3, 13,333 of the option shares became exercisable on March 13, 2011. In connection with an option award granted to the reporting person on March 11, 2010 and originally reported on Form 4, 22,334 of the option shares became exercisable on March 11, 2011. In connection with an option award granted to the reporting person on March 11, 2010 and originally reported on Form 4, 22,333 of the option shares became exercisable on March 11, 2012. /s/ Jonathan M. Gottsegen, attorney-in-fact 2012-03-15