Form 4: Atlassian Co-Founder Sells $1.24M in Shares

Atlassian Co-Founder and Co-CEO Michael Cannon-Brookes sold a total of 7,665 Class A Common Stock shares on December 19, 2025, under a pre-arranged 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, a Director, 10% Owner, and CEO/Co-Founder of Atlassian Corp (TEAM), reported sales of Class A Common Stock.
• The transactions occurred on December 19, 2025, and were executed pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025.
• A total of 7,665 shares of Class A Common Stock were disposed of across five separate transactions.
• The shares were sold at weighted-average prices ranging from $161.3295 to $165.59 per share.
• Following these transactions, Michael Cannon-Brookes indirectly beneficially 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.

Sentiment

Score: 5

Explanation: The sentiment is neutral as this Form 4 reports a pre-scheduled insider stock sale under a 10b5-1 plan, which is a routine and planned event, not indicative of positive or negative company performance or outlook.

Future Outlook

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

Industry Context

This Form 4 filing reports a routine insider stock sale under a pre-arranged 10b5-1 trading plan, which is a common practice among corporate executives for managing personal finances and diversifying holdings. It does not provide specific insights into broader industry trends or competitive positioning.

Stakeholder Impact

• Shareholders: The sale represents a minor reduction in the insider's direct holdings, but the transaction was pre-planned and is generally not considered a signal of management's view on the company's immediate prospects.

Key Dates

Keywords

Atlassian, TEAM, Michael Cannon-Brookes, Insider Trading, Stock Sale, 10b5-1 Plan, Class A Common Stock