SEC Form 4 Filing Summary

Michael Cannon-Brookes, CEO, Co-Founder, and 10% owner of Atlassian Corp, reported the disposition of 5625 Class A Common Stock shares on December 19, 2025. The transactions were executed under a Rule 10b5-1 trading plan at prices ranging from $160.76 to $165.59, with a weighted-average price of $161.33 for the first transaction. The total number of shares disposed of is 5625, with the weighted-average price for all transactions being approximately $162.50. Following these transactions, Cannon-Brookes directly owns 53,655 shares of Class A Common Stock. The shares are held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. This filing is significant due to the volume of shares disposed of by a key executive and major shareholder.