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

Atlassian Co-Founder and CEO Michael Cannon-Brookes sold 7,665 Class A Common Stock shares on January 22, 2026, under a pre-arranged trading plan.

Summary

• Michael Cannon-Brookes, Atlassian's Co-Founder, CEO, Director, and 10% Owner, reported the sale of Class A Common Stock.
• A total of 7,665 shares were sold across six separate transactions on January 22, 2026.
• The sales were executed at weighted-average prices ranging from $123.5531 to $128.4259 per share.
• These transactions were conducted pursuant to a Rule 10b5-1 trading plan adopted by Mr. Cannon-Brookes on February 20, 2025.
• Following these transactions, Mr. Cannon-Brookes indirectly beneficially owns 360,255 shares of Class A Common Stock through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: Neutral. The sale of shares by an insider under a pre-arranged 10b5-1 plan is a routine event and does not inherently indicate positive or negative sentiment about the company's future prospects.

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 an insider transaction, which is a routine disclosure for executives and significant shareholders. It does not provide information on broader industry trends or competitive landscape.

Stakeholder Impact

• Shareholders: The sale represents a minor reduction in the direct beneficial ownership of a key executive, but it was pre-planned and is not typically viewed as a significant signal of company health.

Key Dates

Keywords

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