Form 4: Atlassian Co-Founder Michael Cannon-Brookes Executes Pre-Arranged Stock Sales

Atlassian Corp's Co-Founder and CEO, Michael Cannon-Brookes, reported the sale of 7,948 shares of Class A Common Stock totaling approximately $1.72 million, executed under a pre-established Rule 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Co-Founder, CEO, Director, and 10% Owner of Atlassian Corp (TEAM), reported multiple sales of Class A Common Stock on June 6, 2025.
• A total of 7,948 shares were sold across five separate transactions.
• The sales were executed at weighted-average prices ranging from $214.9161 to $219.0118 per share.
• The transactions were conducted pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 8, 2024.
• Following these transactions, Michael Cannon-Brookes, through the Cannon-Brookes Head Trust, indirectly holds 16,809 shares of Class A Common Stock.

Sentiment

Score: 5

Explanation: The filing reports routine insider stock sales executed under a pre-arranged 10b5-1 trading plan, which is a common practice for executives and generally does not indicate a change in sentiment regarding the company's prospects.

Management Comments

• The reported transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 8, 2024.

Related Party Transactions

• Shares sold were held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, which is a related party to Michael Cannon-Brookes.

Stakeholder Impact

• The sale represents a routine liquidity event for a key insider and is not expected to have a significant direct impact on shareholders, employees, customers, suppliers, or creditors, as it was pre-planned.

Key Dates

Keywords

Atlassian, TEAM, Michael Cannon-Brookes, Insider Trading, Form 4, Stock Sale, 10b5-1 Plan, Director, CEO, 10% Owner