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

Atlassian CEO and Co-Founder Michael Cannon-Brookes reported the sale of 7,665 shares of Class A Common Stock on July 21, 2025, executed under a pre-arranged Rule 10b5-1 trading plan.

Summary

• Michael Cannon-Brookes, Atlassian's CEO, Co-Founder, Director, and 10% owner, sold a total of 7,665 shares of Class A Common Stock.
• The sales occurred on July 21, 2025, at weighted-average prices ranging from $194.594 to $197.455 per share.
• These transactions were executed pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025.
• Following these transactions, Cannon-Brookes' indirect beneficial ownership stands at 383,250 shares, held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: Neutral. The sales are routine and pre-planned under a 10b5-1 plan, which typically mitigates negative sentiment associated with insider selling. The amount sold is also relatively small compared to total holdings.

Positives

• The stock sales were conducted under a Rule 10b5-1 trading plan, indicating they were pre-scheduled and not a reaction to recent negative developments or a change in outlook.

Negatives

• Insider selling, even if pre-planned, can sometimes be perceived negatively by some market participants, although the amount sold is relatively small compared to total holdings.

Industry Context

Insider sales under a Rule 10b5-1 plan are a common practice for executives to manage personal finances and diversify holdings while adhering to insider trading regulations. This is a routine disclosure for a public company executive and is generally not indicative of broader industry trends or competitive shifts.

Stakeholder Impact

• Shareholders: Minor impact. Routine insider sales under a 10b5-1 plan are generally not seen as a strong signal of management's view on future performance, but some may view any insider selling negatively.

Key Dates

Recommendation

The filing is a routine Form 4 disclosing pre-scheduled insider stock sales under a 10b5-1 plan. Such transactions are typically for personal financial management and do not reflect a change in the company's fundamentals or future prospects. Therefore, it provides no new information that would warrant a change in investment recommendation.

Keywords

Atlassian, TEAM, Michael Cannon-Brookes, insider trading, stock sale, Form 4, 10b5-1 plan, beneficial ownership, Class A Common Stock