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

Atlassian Co-Founder and CEO Michael Cannon-Brookes sold a total of 7,665 shares of Class A Common Stock on January 27, 2026, through a pre-arranged 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Co-Founder, CEO, Director, and 10% Owner of Atlassian Corp (TEAM), reported sales of Class A Common Stock.
• On January 27, 2026, a total of 7,665 shares of Class A Common Stock were disposed of in multiple transactions.
• The sales were executed pursuant to a Rule 10b5-1 trading plan adopted by Mr. Cannon-Brookes on February 20, 2025.
• Weighted-average sale prices for the transactions ranged from $132.0375 to $139.4733 per share.
• Following these transactions, Mr. Cannon-Brookes indirectly beneficially owns 337,260 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 the reported transactions are routine sales by a co-founder and CEO under a pre-arranged Rule 10b5-1 trading plan, which is typically for personal financial planning and does not necessarily reflect a change in the insider's view of the company's future prospects.

Positives

• The transactions were conducted under a Rule 10b5-1 trading plan, indicating pre-scheduled sales for personal financial planning rather than opportunistic selling based on new, non-public information.

Negatives

• Insider selling, even when pre-planned, can sometimes be perceived by the market as a slight negative, though the impact is mitigated by the 10b5-1 plan.

Future Outlook

NA

Industry Context

This filing is a routine disclosure of insider stock transactions and does not contain information relevant to broader industry trends or competitive analysis.

Stakeholder Impact

• Shareholders: The sale of shares by a key insider, even if pre-planned, might lead to minor market speculation, but is unlikely to have a significant direct impact on the company's operations or strategic direction.

Key Dates

Recommendation

The reported transactions are routine sales by a co-founder and CEO under a pre-arranged Rule 10b5-1 trading plan. Such sales are typically for personal financial planning and do not necessarily reflect a change in the insider's view of the company's future prospects. Therefore, it does not provide a strong signal to alter an existing investment thesis.

Keywords

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