Form 4: Atlassian Co-Founder Michael Cannon-Brookes Sells Over 7,600 Shares Under Pre-Arranged Trading Plan

Atlassian CEO and Co-Founder Michael Cannon-Brookes sold 7,665 shares of Class A Common Stock for approximately $1.69 million on July 9, 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, sold a total of 7,665 shares of Class A Common Stock on July 9, 2025.
• The sales were executed in multiple trades at weighted-average prices ranging from $218.2919 to $221.915 per share, totaling approximately $1.69 million.
• These transactions were conducted under a Rule 10b5-1 trading plan, which was adopted by Mr. Cannon-Brookes on February 20, 2025.
• Following these transactions, Mr. Cannon-Brookes indirectly beneficially owns 444,570 shares of Class A Common Stock through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 6

Explanation: The sale of shares by a key insider is generally viewed with caution, but the execution under a pre-established Rule 10b5-1 trading plan indicates a planned divestment strategy, often for diversification or liquidity, rather than a reaction to negative company-specific news. This mitigates potential negative sentiment.

Positives

• The sales were conducted under a pre-established Rule 10b5-1 trading plan, indicating a planned and automated divestment strategy rather than a reaction to new, negative information, which mitigates the perception of insider selling as a negative signal.

Negatives

• Insider selling, even under a 10b5-1 plan, reduces the direct ownership stake of a key executive, which some investors might view as a slight reduction in alignment of interests.

Future Outlook

NA

Industry Context

NA

Stakeholder Impact

• Shareholders: The sale reduces the direct ownership stake of a key executive, which could be interpreted by some as a minor reduction in management's direct alignment with shareholder interests, though the 10b5-1 plan mitigates this concern.

Key Dates

Recommendation

Keywords

Atlassian, TEAM, Michael Cannon-Brookes, insider trading, stock sale, Form 4, 10b5-1 plan, beneficial ownership, Class A Common Stock, CEO, co-founder, director, 10% owner