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 reported the sale of 7,665 shares of Class A Common Stock on June 26, 2025, through a 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.
• The sales occurred on June 26, 2025.
• These transactions were executed under a pre-arranged Rule 10b5-1 trading plan, which was adopted on February 20, 2025.
• The shares were sold at weighted-average prices ranging from approximately $196.79 to $200.39 per share.
• Following these transactions, Michael Cannon-Brookes' indirect beneficial ownership of Class A Common Stock is 15,330 shares, held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: The sentiment is neutral. While insider sales can sometimes be perceived negatively, the disclosure that these sales were conducted under a pre-arranged Rule 10b5-1 trading plan mitigates any negative implications, as it indicates the transactions were scheduled in advance for personal financial planning rather than based on new, adverse company information.

Future Outlook

NA

Industry Context

This Form 4 filing reports routine insider stock sales by a key executive and founder of Atlassian, a leading software company. Such transactions, especially when conducted under a Rule 10b5-1 plan, are common among executives for personal financial planning and diversification, and do not typically reflect specific industry trends or company performance.

Related Party Transactions

• Shares are held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, which is a related entity to the reporting person.

Stakeholder Impact

• Shareholders may note the sale of shares by a key executive, though the pre-arranged nature of the sales under a 10b5-1 plan typically reduces concerns about management's confidence in the company's future.

Key Dates

Keywords

Atlassian, TEAM, SEC Form 4, Insider Trading, Stock Sale, Michael Cannon-Brookes, 10b5-1 Plan, Beneficial Ownership, Class A Common Stock