Form 4: Atlassian Co-CEO Sells Shares Under 10b5-1 Plan

Atlassian Co-CEO Michael Cannon-Brookes sold 7,665 shares of Class A Common Stock on August 27, 2025, under a pre-arranged 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Co-CEO, Director, and 10% Owner of Atlassian Corp (TEAM), reported the sale of 7,665 shares of Class A Common Stock.
• The transactions occurred on August 27, 2025, and were executed pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025.
• The shares were sold in multiple trades at weighted-average prices ranging from $166.21 to $171.8746 per share.
• Following these transactions, Michael Cannon-Brookes beneficially owns 176,295 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 filing reports a routine, pre-planned insider stock sale under a 10b5-1 plan, which is generally considered neutral in terms of market sentiment as it is not indicative of new information or a change in outlook.

Industry Context

This filing represents a routine insider transaction and does not provide specific insights into broader industry trends or competitive landscape.

Related Party Transactions

• The shares beneficially owned by Michael Cannon-Brookes are held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Stakeholder Impact

• Minimal impact on shareholders as this is a routine, pre-planned insider sale under a 10b5-1 plan, which is a common practice for executives to manage their stock holdings.

Key Dates

Keywords

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