X0508 4 2025-04-23 false 0001650372 Atlassian Corp TEAM 0001666120 Cannon-Brookes Michael C/O ATLASSIAN CORPORATION 350 BUSH STREET, FLOOR 13 SAN FRANCISCO CA 94104 true true true false CEO, Co-Founder true Class A Common Stock 2025-04-23 4 S false 450.00 213.4486 D 253886.00 I By Trust Class A Common Stock 2025-04-23 4 S false 600.00 212.4862 D 253286.00 I By Trust Class A Common Stock 2025-04-23 4 S false 400.00 215.6425 D 252886.00 I By Trust Class A Common Stock 2025-04-23 4 S false 1876.00 208.1107 D 251010.00 I By Trust Class A Common Stock 2025-04-23 4 S false 160.00 210.833 D 250850.00 I By Trust Class A Common Stock 2025-04-23 4 S false 405.00 214.6505 D 250445.00 I By Trust Class A Common Stock 2025-04-23 4 S false 994.00 207.0704 D 249451.00 I By Trust Class A Common Stock 2025-04-23 4 S false 740.00 209.8657 D 248711.00 I By Trust Class A Common Stock 2025-04-23 4 S false 400.00 217.29 D 248311.00 I By Trust Class A Common Stock 2025-04-23 4 S false 1923.00 209.0415 D 246388.00 I By Trust This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 8, 2024. This transaction was executed in multiple trades during the day at prices ranging from $209.57 to $210.56. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades during the day at prices ranging from $217.05 to $217.59. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades during the day at prices ranging from $208.56 to $209.54. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades during the day at prices ranging from $213.00 to $213.88. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. Shares held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. This transaction was executed in multiple trades during the day at prices ranging from $211.97 to $212.94. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades during the day at prices ranging from $215.27 to $216.12. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades during the day at prices ranging from $207.56 to $208.54. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades during the day at prices ranging from $210.59 to $210.97. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades during the day at prices ranging from $214.23 to $215.11. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades during the day at prices ranging from $206.54 to $207.53. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. /s /Drew Parkes, Attorney-in-Fact for Cannon-Brookes Michael 2025-04-24