SCHEDULE: Atlassian: Cannon-Brookes Maintains 22.6% Stake

Michael Cannon-Brookes, through CBC Co Pty Ltd, reported a continued beneficial ownership of 22.6% of Atlassian Corporation's Class A Common Stock as of June 30, 2025.

Summary

• Michael Cannon-Brookes, an Australian citizen, beneficially owns 48,515,493 shares of Atlassian Corporation's Class B Common Stock.
• These shares are held of record by CBC Co Pty Ltd as trustee of the Cannon-Brookes Head Trust.
• The beneficial ownership represents approximately 22.6% of the outstanding Class A Common Stock, assuming conversion of Class B shares for calculation purposes.
• The calculation is based on 165,949,196 shares of Class A Common Stock and 97,030,987 shares of Class B Common Stock outstanding as of June 30, 2025.
• Each Class B Common Stock share is convertible into one Class A Common Stock share at the holder's option or upon certain events.
• Each Class B Common Stock share carries ten votes, while Class A shares have one vote.
• The 48,515,493 Class B shares held by Michael Cannon-Brookes represent approximately 42.7% of the aggregate combined voting power of Atlassian's outstanding Class A and Class B Common Stock.

Sentiment

Score: 5

Explanation: This is a routine beneficial ownership disclosure (Schedule 13G Amendment No. 12) by a long-standing, significant shareholder. It provides factual information about shareholdings and voting power, without conveying explicit positive or negative sentiment regarding the company's performance or outlook.

Stakeholder Impact

• Shareholders: Confirms the continued significant influence of Michael Cannon-Brookes, particularly due to the high voting power of his Class B shares (42.7% of combined voting power), which could impact future strategic decisions and corporate governance.

Key Dates

Keywords

Atlassian, Michael Cannon-Brookes, Shareholder, Beneficial Ownership, Class A Common Stock, Class B Common Stock, SEC Filing, Schedule 13G, Corporate Governance