Constellation Software Inc. — Regulatory Filings 2020

Jun 23, 2020

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Date: June 23, 2020

100 University Avenue, 8th floor Toronto ON, M5J 2Y1 www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: CONSTELLATION SOFTWARE INC.

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type : Special Meeting Record Date for Notice of Meeting : July 02, 2020 Record Date for Voting (if applicable) : July 02, 2020 Beneficial Ownership Determination Date : July 02, 2020 Meeting Date : August 05, 2020 Meeting Location (if available) : Toronto, ON Issuer sending proxy related materials directly to NOBO: No Issuer paying for delivery to OBO: Yes

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders No NAA for Registered Holders No

Voting Security Details:

Description CUSIP Number ISIN COMMON 21037X100 CA21037X1006

Sincerely,

Computershare

Agent for CONSTELLATION SOFTWARE INC.