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

Atlassian Corp's CEO and Co-Founder, Michael Cannon-Brookes, reported the sale of 7,665 Class A Common Stock shares under a pre-arranged trading plan.

Summary

• Michael Cannon-Brookes, a Director, 10% Owner, and CEO/Co-Founder of Atlassian Corp (TEAM), reported transactions on November 25, 2025.
• He disposed of a total of 7,665 shares of Class A Common Stock through multiple sales.
• These transactions were executed pursuant to a Rule 10b5-1 trading plan, which was adopted on February 20, 2025.
• The shares were sold at weighted-average prices ranging from $147.1964 to $150.7129 per share.
• Following these reported transactions, Michael Cannon-Brookes indirectly beneficially owns 183,960 shares of Class A Common Stock, held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: The filing reports a routine insider stock sale executed under a pre-arranged 10b5-1 trading plan. Such transactions are generally considered neutral as they are non-discretionary and planned in advance, not typically indicative of management's immediate sentiment regarding the company's future performance.

Future Outlook

NA

Industry Context

This is a routine insider transaction under a pre-arranged 10b5-1 trading plan, which is a common practice for executives to diversify holdings and manage liquidity while complying with insider trading laws. It does not inherently reflect a change in the company's or industry's fundamental outlook.

Stakeholder Impact

• Shareholders: The sale represents a minor reduction in the insider's direct holdings, but the pre-scheduled nature of the transaction under a 10b5-1 plan typically mitigates concerns about its implications for company value.

Key Dates

Keywords

Atlassian, TEAM, Michael Cannon-Brookes, Insider Trading, Form 4, Stock Sale, 10b5-1 Plan, Corporate Governance, Director, CEO, Co-Founder, Class A Common Stock