Macquarie Infrastructure Holdings, LLC

Q: Mar 31 2022

FY: Dec 31 2021

Q: Sep 30 2021

2.01,3.01,3.03,5.01,5.02,5.03,8.01,9.01

2.02,9.01

2.02,9.01

5.02

2.02,9.01

9.01

2.01,7.01,9.01

Certification of termination of registration of a class of securities (Section 12(g))

Notification of removal from listing and/or registration on a national securities exchange

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Written communication about a business combination transaction (Rule 425)

Notice of Effectiveness

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Written communication about a business combination transaction (Rule 425)

Registration statement under Securities Act of 1933

Written communication about a business combination transaction (Rule 425)

none

none

Macquarie Infrastructure Management (USA) INC

none

Brown Norman H Jr

SANANIKONE OUMA

Brock Amanda M

KIRK RONALD

Frost Christopher

LENTZ HENRY E

Davis Jay

Dreyfus Maria S.

Stanley Martin

Kernan Michael

O'Neil Nick

none

MACQUARIE GROUP LTD

Macquarie Infrastructure Management (USA) INC

Macquarie Infrastructure Management (USA) INC

MACQUARIE GROUP LTD

1.01,2.01,3.02,3.03,5.02,5.03,8.01,9.01

Correspondence with the SEC

Letter from the SEC