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

Atlassian Co-CEO Michael Cannon-Brookes sold 7,665 shares of Class A Common Stock on November 11, 2025, as part of a pre-arranged Rule 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, who serves as Co-CEO, Director, and a 10% Owner of Atlassian Corp (TEAM), sold a total of 7,665 shares of the company's Class A Common Stock.
• The sales took place on November 11, 2025, with weighted-average transaction prices ranging from $157.5923 to $164.1 per share.
• These transactions were executed in accordance with a Rule 10b5-1 trading plan that was adopted by Mr. Cannon-Brookes on February 20, 2025.
• Following these reported transactions, Mr. Cannon-Brookes indirectly beneficially owns 260,610 shares of Class A Common Stock, held through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: The sentiment is neutral. While insider selling can sometimes be viewed negatively, the execution under a pre-arranged Rule 10b5-1 plan indicates a planned, routine transaction for personal financial management rather than a reaction to new company-specific information, thus mitigating any strong negative implications.

Positives

• The stock sales were conducted under a pre-arranged Rule 10b5-1 trading plan, which indicates a planned and scheduled divestment rather than a reaction to new, non-public information, thereby mitigating the negative signal often associated with insider selling.

Negatives

• The transactions represent a reduction in the direct ownership stake of a key executive and significant shareholder in Atlassian Corp.

Risks

• No specific risks related to company operations, financial health, or future prospects are mentioned in this Form 4 filing.

Future Outlook

NA

Industry Context

Form 4 filings are standard disclosures for insider transactions. The use of a Rule 10b5-1 trading plan by a high-level executive like Michael Cannon-Brookes is a common practice for managing personal liquidity and diversification while avoiding accusations of trading on material non-public information. Such plans are pre-scheduled and typically executed over time, making these sales less indicative of immediate concerns about the company's prospects compared to unscheduled, opportunistic sales.

Corporate Governance

Related Party Transactions

• The shares beneficially owned by Michael Cannon-Brookes are held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, indicating a related party structure for the beneficial ownership of the securities.

Stakeholder Impact

• Shareholders: May observe a slight negative sentiment due to insider selling, though this is largely mitigated by the disclosure that the sales were part of a pre-arranged 10b5-1 plan. The reduction in direct insider ownership is noted.
• Employees: No direct impact on employees is indicated by this filing.
• Customers: No direct impact on customers is indicated by this filing.
• Suppliers: No direct impact on suppliers is indicated by this filing.
• Creditors: No direct impact on creditors is indicated by this filing.

Key Dates

Recommendation

This Form 4 filing reports routine insider selling under a pre-arranged 10b5-1 plan. Such transactions are typically for personal financial planning and diversification and do not usually signal a change in the company's fundamental prospects or management's confidence. Without additional information on company performance or strategic shifts, this filing alone does not warrant a change from a 'hold' position for a seasoned investor.

Keywords

Atlassian, TEAM, Michael Cannon-Brookes, Insider Trading, Form 4, Stock Sale, 10b5-1 Plan, Executive Compensation, Corporate Governance