Constellation Software Inc. — Declaration of Voting Results & Voting Rights Announcements 2024

May 14, 2024

CONSTELLATION SOFTWARE INC.

VIA SEDAR+

May 13, 2024

Alberta Securities Commission British Columbia Securities Commission Financial and Consumer Affairs Authority of Saskatchewan, Securities Division The Manitoba Securities Commission

Ontario Securities Commission Autorité des marchés financiers Financial and Consumer Services Commission (New Brunswick) Nova Scotia Securities Commission Superintendent of Securities, Prince Edward Island Superintendent of Securities, Newfoundland and Labrador Superintendent of Securities, Northwest Territories Superintendent of Securities, Yukon Superintendent of Securities, Nunavut

Dear Sirs/Mesdames:

RE: Constellation Software Inc. Report of Voting Results pursuant to section 11.3 of National Instrument 51-102 Continuous Disclosure Obligations (“NI 51-102”)

Following the annual meeting of shareholders of Constellation Software Inc. (the “ Corporation ”) held on May 13, 2024 (the “ Meeting ”), and in accordance with section 11.3 of NI 51-102, we hereby advise you of the following voting results obtained at the Meeting:

1. Election of Directors

Each of the nominees proposed in the Corporation’s Management Information Circular dated as of March 27, 2024 was elected by ballot in accordance with the Corporation’s majority director election policy.

Name of Nominee	Votes For	%	Votes Withheld	%
Jeff Bender	15,492,155	95.77%	684,536	4.23%
John Billowits	14,223,243	87.92%	1,953,447	12.08%
Lawrence Cunningham	15,968,213	98.71%	208,476	1.29%
Susan Gayner	15,756,804	97.40%	419,886	2.60%
Claire Kennedy	15,735,165	97.27%	441,525	2.73%
Robert Kittel	13,658,442	84.43%	2,518,248	15.57%

Name of Nominee	Votes For	%	Votes Withheld	%
Mark Leonard	15,942,314	98.55%	234,377	1.45%
Mark Miller	15,152,656	93.67%	1,024,033	6.33%
Lori O’Neill	15,756,775	97.40%	419,915	2.60%
Donna Parr	16,094,612	99.49%	82,079	0.51%
Andrew Pastor	15,047,509	93.02%	1,129,180	6.98%
Dexter Salna	14,991,318	92.67%	1,185,372	7.33%
Laurie Schultz	16,102,081	99.54%	74,609	0.46%
Barry Symons	15,491,557	95.76%	685,134	4.24%
Robin Van Poelje	14,739,328	91.11%	1,437,361	8.89%

2. Appointment of KPMG LLP as the Corporation’s Auditors

On a vote by ballot, KPMG LLP was re-appointed as the Corporation’s auditors and the directors were authorized to determine their remuneration by at least a majority of shareholders.

Votes For	%	Votes Withheld	%
14,327,509	87.64%	2,021,303	12.36%

3. Executive Compensation

On a vote by ballot, an advisory resolution was passed approving the Corporation’s approach to executive compensation.

Votes For	%	Votes Against	%
15,547,036	96.10%	631,595	3.90%

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MTDOCS 50940868

Yours truly,

CONSTELLATION SOFTWARE INC.

/s/ Jamal Baksh

Jamal Baksh Chief Financial Officer

MTDOCS 50940868