Form 4: Atlassian Co-Founder Michael Cannon-Brookes Sells Over 7,900 Shares Under Pre-Arranged 10b5-1 Plan

Atlassian Corp's Co-Founder and CEO, Michael Cannon-Brookes, sold 7,948 shares of Class A Common Stock on June 5, 2025, through a pre-arranged 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Co-Founder, CEO, Director, and 10% Owner of Atlassian Corp (TEAM), reported the sale of Class A Common Stock.
• A total of 7,948 shares were sold on June 5, 2025, across multiple transactions.
• The sales were executed at weighted-average prices ranging from $211.7808 to $219.9686 per share.
• These transactions were conducted pursuant to a Rule 10b5-1 trading plan adopted on February 8, 2024.
• Following these transactions, Michael Cannon-Brookes beneficially owns 7,948 shares indirectly through the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: Neutral. The document reports a routine insider stock sale under a pre-arranged plan, which is a common practice and does not inherently indicate positive or negative sentiment about the company's future prospects.

Positives

• The sales were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a planned and automated divestment rather than a reaction to immediate market conditions, which can reduce concerns about insider sentiment.

Negatives

• An insider, specifically a co-founder and CEO, selling a significant number of shares could be perceived negatively by some investors, even if pre-planned, potentially leading to questions about future growth prospects or valuation.

Risks

• While the sale is pre-planned, large insider sales can sometimes be interpreted by the market as a lack of confidence, potentially leading to negative stock price movement or increased scrutiny from investors.

Future Outlook

The document is a Form 4 reporting past transactions and does not provide forward-looking statements or guidance regarding the company's future performance or outlook.

Industry Context

This Form 4 filing reports an insider stock sale for Atlassian, a prominent software company. Insider transactions are a routine part of the market and do not inherently reflect broader industry trends, though they are closely watched by investors for insights into management's perspective on company valuation.

Comparison to Industry Standards

• This document reports an insider transaction, which is a standard disclosure requirement for public companies in the software industry and beyond.
• There are no specific financial results or operational metrics to compare against industry benchmarks or competitors like Microsoft, Salesforce, or Adobe within this filing.
• The execution of sales under a Rule 10b5-1 plan is a common practice for executives managing personal portfolios and is considered a standard method for orderly divestment.

Stakeholder Impact

• Shareholders: May interpret the insider sale differently; some may view it as a normal part of portfolio diversification, while others might scrutinize it for potential signals about the company's future.
• Employees, Customers, Suppliers, Creditors: Unlikely to be directly impacted by this specific insider transaction report, as it pertains to personal stock holdings of an executive.

Next Steps

• The document does not outline any specific future actions, events, or milestones for the company, as it is a report of a completed insider transaction.

Key Dates

Recommendation

Keywords

Atlassian, TEAM, Michael Cannon-Brookes, Insider Trading, Form 4, SEC Filing, Stock Sale, 10b5-1 Plan, Corporate Governance, Software Company