Exhibit 99.1

| 510 Burrard St, 3rd Floor | |
| Date: May 21, 2026 | Vancouver BC, V6C 3B9 |
| www.computershare.com |
To: All Canadian Securities Regulatory Authorities
Subject: AURORA CANNABIS INC.
Dear Sir/Madam:
We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:
Meeting Type : Annual General Meeting
| Record Date for Notice of Meeting : | June 15, 2026 |
| Record Date for Voting (if applicable) : | June 15, 2026 |
| Beneficial Ownership Determination Date : | June 15, 2026 |
| Meeting Date : | August 07, 2026 |
| Meeting Location (if available) : | Virtual Meeting |
| 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 | Yes |
| Beneficial Holders Stratification Criteria: | Not Applicable |
| NAA for Registered Holders | Yes |
| Registered Holders Stratification Criteria: | Not Applicable |
Voting Security Details:
| Description | CUSIP Number | ISIN |
| COMMON CLASS | 05156X850 | CA05156X8504 |
Sincerely,
Computershare
Agent for AURORA CANNABIS INC.