Form 4: Atlassian Co-Founder Sells $1.4M in Stock

Atlassian CEO and Co-Founder Michael Cannon-Brookes sold 7,665 shares of Class A Common Stock for approximately $1.4 million through a pre-arranged 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Atlassian's CEO, Co-Founder, Director, and 10% Owner, reported the sale of 7,665 shares of Class A Common Stock.
• The transactions occurred on August 5, 2025, and were executed under a Rule 10b5-1 trading plan adopted on February 20, 2025.
• The shares were sold in multiple trades at weighted-average prices ranging from $183.855 to $186.312 per share.
• The total proceeds from these sales amount to approximately $1,418,716.42.
• Following these transactions, Michael Cannon-Brookes beneficially owns 298,935 shares of Class A Common Stock indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: The sentiment is neutral as the stock sales were conducted under a pre-arranged 10b5-1 trading plan, which typically indicates a planned liquidity event rather than a reaction to new company-specific information.

Future Outlook

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

Industry Context

This filing is a routine insider transaction report and does not provide information related to broader industry trends or competitive landscape. It reflects a pre-scheduled sale by a key executive.

Related Party Transactions

• Shares are held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, indicating a related party structure for beneficial ownership.

Stakeholder Impact

• Shareholders: The sale of a relatively small number of shares by a co-founder under a pre-arranged plan is unlikely to have a significant impact on shareholder sentiment or the company's strategic direction.
• Employees, Customers, Suppliers, Creditors: No direct impact is indicated by this routine insider transaction filing.

Key Dates

Recommendation

This Form 4 filing details a routine, pre-scheduled insider stock sale under a 10b5-1 plan. It does not provide any new fundamental information about Atlassian's financial performance, strategic direction, or operational health. Therefore, it does not warrant a change in investment recommendation based solely on this filing. Investors should continue to hold based on broader company fundamentals and market conditions.

Keywords

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