X0306 4 2021-12-29 0 0001289790 Macquarie Infrastructure Corp MIC 0001418333 MACQUARIE GROUP LTD LEVEL 6, 50 MARTIN PLACE SYDNEY, NEW SOUTH WALES 2000 AUSTRALIA C3 AUSTRALIA 0 0 1 0 0001311388 Macquarie Infrastructure Management (USA) INC 125 W. 55TH STREET NEW YORK NY 10019 1 0 1 0 Common Unit 2021-12-29 4 A 0 72194 3.66 A 14721523 I See footnote (2) Represents Common Units issued to Macquarie Infrastructure Management (USA) Inc. upon reinvestment of base fees for the month ended November 30, 2021. Includes 2,100 shares held in various investment funds for which Macquarie Investment Management Global Limited, a subsidiary of MGL, acts as investment advisor. MIMUSA holds the balance of the shares. Each reporting person disclaims beneficial ownership of all such securities except to the extent of its pecuniary interest therein. MGL, MIMUSA, - /s/ Charles Glorioso, Authorized Signatory, /s/Paul Peduto, Authorized Signatory 2021-12-29