Form 4: Atlassian Co-Founder Michael Cannon-Brookes Sells Shares Under Pre-Arranged Trading Plan

Atlassian CEO and Co-Founder Michael Cannon-Brookes executed sales of Class A Common Stock totaling 7,665 shares on July 25, 2025, as part of a pre-established Rule 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Atlassian's CEO, Co-Founder, Director, and 10% Owner, reported sales of Class A Common Stock.
• The transactions occurred on July 25, 2025.
• A total of 7,665 shares were sold across four separate transactions.
• The sales were executed at weighted-average prices ranging from $200.5719 to $203.4097 per share.
• These transactions were conducted pursuant to a Rule 10b5-1 trading plan adopted by Mr. Cannon-Brookes on February 20, 2025.
• Following these sales, Mr. Cannon-Brookes beneficially owns 352,590 Class A Common Stock shares indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: The filing reports a pre-scheduled insider stock sale under a Rule 10b5-1 plan, which is a routine event for executives managing personal finances and typically does not reflect new sentiment about the company's performance. Therefore, the sentiment is neutral.

Future Outlook

The filing does not contain any forward-looking statements or guidance regarding the company's future performance or strategic direction.

Industry Context

This filing reports a routine insider stock transaction and does not provide broader industry context or trends.

Corporate Governance

Stakeholder Impact

• Shareholders: The sale of shares by a key executive and significant owner could be noted by investors, though its pre-planned nature under a 10b5-1 plan mitigates concerns about its implications for company performance.

Key Dates

Keywords

Atlassian, TEAM, Michael Cannon-Brookes, Insider Sale, Form 4, 10b5-1 Plan, Stock Transaction, Executive Compensation, Corporate Governance