Optiva Inc. — Proxy Solicitation & Information Statement 2025

Oct 15, 2025

Date: October 15, 2025

Computershare

320 Bay Street, 14th floor

Toronto ON, M5H 4A6

www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: OPTIVA 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 : October 27, 2025
Record Date for Voting (if applicable) : October 27, 2025
Beneficial Ownership Determination Date : October 27, 2025
Meeting Date : November 27, 2025
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 Shares	68403N307	CA68403N3076

Sincerely,

Computershare

Agent for OPTIVA INC.