Michael Cannon-Brookes Reports 22.7% Stake in Atlassian Corporation (TEAM)

Michael Cannon-Brookes, co-founder of Atlassian Corporation (TEAM), filed a Schedule 13G/A on May 15, 2026, reporting a 22.7% ownership stake in the company's Class A Common Stock. The filing indicates that as of March 31, 2026, Cannon-Brookes beneficially owns 47,342,748 shares, consisting of 275,940 shares of Class A Common Stock and 47,066,808 shares of Class B Common Stock. These shares are held of record by CBC Co Pty Ltd as trustee of the Cannon-Brookes Head Trust. While the 22.7% figure is calculated based on the assumption that his Class B shares are converted to Class A, the filing notes that Cannon-Brookes holds approximately 42.7% of the aggregate combined voting power due to the ten-for-one voting rights associated with Class B shares. This amendment (No. 15) reflects his continued significant control and investment in the San Francisco-based software company. The reporting person maintains sole voting and dispositive power over all reported shares.