Form 4: Atlassian Co-Founder Sells Shares via 10b5-1 Plan
Insider Transaction Report
Atlassian Co-Founder and CEO Michael Cannon-Brookes sold a total of 7,665 Class A Common Stock shares on December 15, 2025, through a pre-arranged 10b5-1 trading plan.
Summary
- Michael Cannon-Brookes, Atlassian's Co-Founder, CEO, Director, and 10% Owner, executed sales of Class A Common Stock.
- The transactions occurred on December 15, 2025, involving five separate sales.
- A total of 7,665 shares of Class A Common Stock were disposed of.
- The sales were conducted at weighted-average prices ranging from $157.7698 to $161.9767 per share.
- These sales were effected pursuant to a Rule 10b5-1 trading plan, which was adopted by Mr. Cannon-Brookes on February 20, 2025.
- The shares are indirectly held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.
- Following these reported transactions, Mr. Cannon-Brookes beneficially owns 84,315 shares of Class A Common Stock indirectly.
Sentiment
Score: 5
Explanation: The filing reports a routine insider stock sale executed under a pre-arranged 10b5-1 trading plan, which is a neutral event for company sentiment as it is non-discretionary and pre-scheduled.
Future Outlook
The filing does not contain any forward-looking statements or guidance regarding the company's future outlook.
Industry Context
This filing reports a routine insider transaction and does not provide information directly related to broader industry trends or competitive landscape.
Stakeholder Impact
- Minor impact on shareholders as it represents a planned, non-discretionary sale by a key executive, not indicative of a change in company outlook or management's confidence.
Key Dates
| Date | Description |
|---|---|
| 02/20/2025 | Rule 10b5-1 trading plan adopted by the Reporting Person. |
| 12/15/2025 | Transaction date for the sale of Class A Common Stock. |
| 12/16/2025 | Date of signature for the Form 4 filing. |
Recommendation
holdThe filing details a pre-scheduled insider stock sale by a co-founder and CEO, executed under a 10b5-1 plan. Such transactions are typically non-discretionary and do not inherently signal a change in the company's fundamental prospects or management's confidence. Therefore, it does not warrant a change in investment recommendation based solely on this filing.
Keywords
Atlassian, TEAM, Michael Cannon-Brookes, Insider Sale, Form 4, 10b5-1 Plan, Equity Transaction
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