Form 4: Atlassian Co-CEO Sells $1.25M in Stock

Atlassian Co-CEO Michael Cannon-Brookes sold 7,665 shares of Class A Common Stock for approximately $1.25 million under a pre-arranged 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Atlassian's Co-CEO, Director, and 10% owner, sold 7,665 shares of Class A Common Stock on August 14, 2025.
• The sales were executed at weighted-average prices ranging from $160.81 to $164.6269 per share.
• The total value of the shares sold is approximately $1,251,379.75.
• These transactions were conducted pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025.
• Following these transactions, Michael Cannon-Brookes indirectly beneficially owns 245,280 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 sales are part of a pre-arranged 10b5-1 plan, which typically signals a planned liquidity event rather than a negative outlook on the company's future. While it's insider selling, the pre-planned nature mitigates negative sentiment.

Positives

• The sales were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a planned divestment rather than a reaction to new negative information.

Negatives

• Insider selling, even if pre-planned, can sometimes be perceived negatively by the market as it reduces the insider's direct stake in the company.

Risks

• No specific risks beyond the general market perception of insider selling are mentioned.

Corporate Governance

Related Party Transactions

• Shares are held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, which is a common structure for beneficial ownership by insiders.

Stakeholder Impact

• Shareholders: Minor impact. Pre-planned sales are generally less concerning than unannounced sales, but still represent a reduction in insider ownership.
• Employees, Customers, Suppliers, Creditors: No direct impact from this filing.

Key Dates

Recommendation

The insider sales are part of a pre-arranged 10b5-1 trading plan, which is a common practice for executives to manage personal finances without implying a negative outlook on the company. This type of transaction is generally not considered a strong signal for future stock performance and does not reflect a change in the company's fundamentals or strategic direction. Therefore, a "hold" recommendation is appropriate as this filing alone does not provide new information to warrant a change in investment thesis.

Keywords

Atlassian, TEAM, Michael Cannon-Brookes, insider trading, stock sale, Form 4, 10b5-1 plan, beneficial ownership, CEO, director, 10% owner