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

Atlassian Corp (TEAM) Co-Founder and CEO Michael Cannon-Brookes has sold 7,665 shares of Class A Common Stock for approximately $1.65 million, executed under a pre-established Rule 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Co-Founder, CEO, Director, and 10% Owner of Atlassian Corp (TEAM), sold a total of 7,665 shares of Class A Common Stock on June 9, 2025.
• The sales were executed at weighted-average prices ranging from $213.7155 to $217.25 per share.
• The transactions were conducted pursuant to a Rule 10b5-1 trading plan adopted by Mr. Cannon-Brookes on February 20, 2025.
• Following these transactions, Mr. Cannon-Brookes beneficially owns 107,310 shares of Class A Common Stock indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: The sentiment is neutral to slightly negative. While an insider sale can be perceived negatively, the fact that it was conducted under a pre-arranged 10b5-1 plan mitigates concerns that it's based on new, adverse information. It's a routine liquidity event for an executive.

Positives

• The sale was conducted under a Rule 10b5-1 trading plan, indicating a pre-scheduled transaction rather than a reaction to immediate market conditions or company performance.

Negatives

• An insider sale, even if pre-scheduled, reduces the direct ownership stake of a key executive and co-founder in the company.
• The sale represents a divestment of shares by a significant insider, which some investors might interpret as a lack of conviction, despite the 10b5-1 plan.

Risks

• No specific risks beyond the general implications of an insider share sale are mentioned in this Form 4 filing.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future performance or outlook.

Industry Context

This Form 4 filing details an individual insider transaction and does not provide broader industry context or trends. It reflects a routine share disposition by a key executive in the software and collaboration tools industry.

Related Party Transactions

• Shares are held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, indicating a related party structure for beneficial ownership.

Stakeholder Impact

• Shareholders: The sale by a co-founder and CEO could be viewed with slight caution, though the 10b5-1 plan suggests it's not a signal of negative company performance. It represents a minor dilution of insider ownership.
• Employees: No direct impact on employees is indicated by this filing.

Key Dates

Recommendation

Keywords

Atlassian, TEAM, Michael Cannon-Brookes, Insider Sale, Form 4, SEC Filing, 10b5-1 Plan, Share Sale, Executive Compensation, Corporate Governance