Form 4: Atlassian Co-Founder Sells Shares via 10b5-1 Plan

Atlassian Co-Founder and CEO Michael Cannon-Brookes sold a total of 7,665 Class A Common Stock shares on December 24, 2025, through a pre-arranged 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, a Director, 10% Owner, and CEO/Co-Founder of Atlassian Corp (TEAM), reported the sale of Class A Common Stock.
• The transactions occurred on December 24, 2025, and were executed pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025.
• A total of 7,665 shares were disposed of across three separate transactions.
• The shares were sold at weighted-average prices of $162.05, $160.4384, and $161.1647.
• Following these transactions, Michael Cannon-Brookes indirectly beneficially owns 30,660 Class A Common Stock shares.
• The shares are held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: The filing reports a pre-scheduled insider stock sale under a 10b5-1 plan, which is a routine event and generally not indicative of positive or negative company performance or outlook. Therefore, the sentiment is neutral.

Future Outlook

NA

Industry Context

This filing reports a routine, pre-scheduled insider stock transaction, which is common practice for executives and significant shareholders to manage their equity holdings while complying with insider trading regulations. It does not provide insights into broader industry trends or competitive landscape.

Stakeholder Impact

• Shareholders: The sale of shares by a key executive and significant owner is a routine event under a pre-arranged plan and is unlikely to have a significant direct impact on other shareholders or the company's operations.

Key Dates

Keywords

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