Form 4: Atlassian Co-Founder Michael Cannon-Brookes Sells Over 7,600 Shares Under Pre-Arranged Trading Plan

Atlassian Corp CEO and Co-Founder Michael Cannon-Brookes reported the sale of 7,665 shares of Class A Common Stock on July 15, 2025, executed under a pre-established Rule 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Atlassian Corp's CEO, Co-Founder, Director, and 10% Owner, reported the sale of 7,665 shares of Class A Common Stock.
• The transactions occurred on July 15, 2025, and were executed pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025.
• The sales were conducted in multiple trades at weighted-average prices ranging from $187.8644 to $193.3578 per share.
• Following these transactions, Michael Cannon-Brookes indirectly beneficially owns 413,910 shares of Class A Common Stock through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: The sentiment is neutral. While insider sales can sometimes be perceived negatively, the explicit mention of a Rule 10b5-1 trading plan indicates a pre-scheduled transaction for personal financial management rather than a reaction to adverse company-specific news, thus mitigating negative sentiment.

Positives

• The sales were conducted under a Rule 10b5-1 trading plan, indicating a pre-scheduled transaction for personal financial management rather than a reaction to new, non-public information.

Negatives

• Insider sales, even under a 10b5-1 plan, reduce the insider's direct stake in the company.

Future Outlook

No forward-looking statements or guidance are provided in this Form 4 filing, which solely reports past insider transactions.

Industry Context

This Form 4 filing reports routine insider stock sales under a pre-arranged trading plan, which is a common practice for executives for personal financial planning and liquidity. It does not provide specific insights into broader industry trends or competitive dynamics.

Comparison to Industry Standards

• This Form 4 filing details insider stock sales, which are standard disclosures for publicly traded companies.
• The execution of sales under a Rule 10b5-1 plan is a common and accepted practice among executives to mitigate concerns about insider trading, aligning with corporate governance best practices.
• No specific comparable companies or projects are mentioned or implied within the context of this transaction report.

Stakeholder Impact

• Shareholders: The sale of shares by a key insider, even under a 10b5-1 plan, slightly reduces the insider's direct alignment with shareholder interests, though the impact is minimal given the small percentage of total shares owned.

Key Dates

Recommendation

Keywords

Atlassian, TEAM, SEC Form 4, Insider Trading, Stock Sale, Michael Cannon-Brookes, 10b5-1 Plan, Beneficial Ownership, Class A Common Stock