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

Atlassian Corp (TEAM) Co-Founder and CEO Michael Cannon-Brookes reported the sale of 7,948 shares of Class A Common Stock on June 2, 2025, executed under a Rule 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Atlassian's Co-Founder, CEO, Director, and 10% Owner, reported the disposition of 7,948 shares of Class A Common Stock.
• The transactions occurred on June 2, 2025, at weighted-average prices ranging from $199.505 to $207.4297 per share.
• These sales were executed pursuant to a Rule 10b5-1 trading plan, which was adopted by Mr. Cannon-Brookes on February 8, 2024.
• Following these transactions, Mr. Cannon-Brookes beneficially owns 31,792 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. While insider selling can sometimes be perceived negatively, the fact that these sales were conducted under a pre-arranged Rule 10b5-1 trading plan mitigates any negative implications, as it indicates a planned disposition rather than a reaction to adverse company news or market conditions.

Positives

• The sales were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a structured and pre-scheduled disposition rather than a reaction to immediate market conditions or company performance, which enhances transparency and reduces concerns about opportunistic insider selling.

Negatives

• The sale of 7,948 shares by a key insider, even under a 10b5-1 plan, represents a reduction in direct insider ownership, which some investors might interpret as a minor negative, although it is common for executives to diversify their holdings.

Future Outlook

The document, being a Form 4, does not provide any forward-looking statements or guidance regarding the company's future performance or strategic direction.

Management Comments

• The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 8, 2024.

Industry Context

This Form 4 filing is a routine disclosure of an insider stock transaction and does not provide information directly related to broader industry trends or competitive dynamics within the software or collaboration tools sector. Insider sales under 10b5-1 plans are a common practice across industries for diversification and liquidity.

Related Party Transactions

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

Stakeholder Impact

• Shareholders: The sale by a key insider, even if pre-planned, slightly reduces the direct alignment of the insider's personal wealth with the company's stock performance, though the remaining significant indirect holdings maintain substantial alignment.

Key Dates

Recommendation

Keywords

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