SEC Filing Analysis: Atlassian Corp (TEAM)

Executive Summary

• Trading Significance: Low
• Key Takeaway: Atlassian's Co-Founder and CEO, Michael Cannon-Brookes, sold shares worth approximately $1.23 million under a pre-arranged 10b5-1 trading plan.
• Market Impact: The transaction is considered routine and immaterial, representing a negligible fraction of the company's market capitalization and the insider's holdings. It is unlikely to have a market impact.

Company Information

Field	Value
Company	Atlassian Corp
Ticker Symbol	TEAM
CIK	0001650372
Industry	SERVICES-PREPACKAGED SOFTWARE [7372]

Insider Information

Field	Value
Name	Cannon-Brookes Michael
CIK	0001666120
Title/Position	CEO, Co-Founder
Relationship	Director, Officer, 10% Owner

Transaction Details

Field	Value
Form Type	4
Transaction Date	2025-11-11
Transaction Code	S (Sale)
Security Type	Class A Common Stock
Shares Involved	7,665
Price Per Share	$160.30 (Weighted Average)
Total Value	$1,228,731
Shares Owned After	260,610
Ownership Type	Indirect

Financial Impact Assessment

Transaction Materiality

Metric	Value
Transaction Value	$1,228,731
% of Market Cap	0.003%
Shares Transacted	7,665
% of Shares Outstanding	0.0046%
Post-Transaction Ownership	260,610 shares (0.16% of outstanding)
Materiality Assessment	Low

Impact Evaluation

• Market Cap Context: For a large-cap company with a market capitalization of $41.53 billion, this $1.23 million sale is financially insignificant.
• Ownership Concentration: The sale represents a very small portion (approx. 2.85%) of the insider's reported holdings from this transaction, and his remaining stake is still substantial.
• Transaction Significance: The transaction's value is less than 0.01% of the market cap and the shares sold are less than 0.01% of shares outstanding. These metrics fall well below the thresholds for moderate or high significance.

Market Impact Analysis

Stock Impact Prediction

• Direction: Neutral
• Reasoning: The sale is minor in scale and was conducted under a Rule 10b5-1 plan, which mitigates concerns that the sale is based on negative private information. The market typically does not react to such small, pre-planned sales from founders of large companies.

Volume & Sentiment

• Expected Volume Impact: Negligible. The transaction size is too small to impact trading volume.
• Sentiment Indicator: Neutral. This is a routine, non-informational transaction.

Additional Context

Transaction Notes

• Special Circumstances: All sales were executed pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025. The shares are held indirectly by a trust.