X0508 4 2023-12-13 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 Co-CEO, Co-Founder false Class A Common Stock 2023-12-13 4 S false 500.00 204.3989 D 98392.00 I By Trust Class A Common Stock 2023-12-13 4 S false 450.00 209.94 D 97942.00 I By Trust Class A Common Stock 2023-12-13 4 S false 400.00 216.5625 D 97542.00 I By Trust Class A Common Stock 2023-12-13 4 S false 500.00 203.4835 D 97042.00 I By Trust Class A Common Stock 2023-12-13 4 S false 1317.00 205.4429 D 95725.00 I By Trust Class A Common Stock 2023-12-13 4 S false 150.00 211.5667 D 95575.00 I By Trust Class A Common Stock 2023-12-13 4 S false 1007.00 214.6202 D 94568.00 I By Trust Class A Common Stock 2023-12-13 4 S false 1403.00 206.6541 D 93165.00 I By Trust Class A Common Stock 2023-12-13 4 S false 250.00 213.656 D 92915.00 I By Trust Class A Common Stock 2023-12-13 4 S false 250.00 208.998 D 92665.00 I By Trust Class A Common Stock 2023-12-13 4 S false 1764.00 215.3309 D 90901.00 I By Trust Class A Common Stock 2023-12-13 4 S false 250.00 207.652 D 90651.00 I By Trust This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 21, 2023. This transaction was executed in multiple trades during the day at prices ranging from $206.17 to $207.15. 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 $213.06 to $214.01. 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 $208.52 to $209.19. 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 $215.09 to $216.02. 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 $207.32 to $208.09. 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 $203.96 to $204.92. 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 $209.52 to $210.50. 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 $216.34 to $217.18. 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 $202.92 to $203.88. 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. This transaction was executed in multiple trades during the day at prices ranging from $204.98 to $205.93. 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 $211.16 to $212.12. 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 $214.08 to $215.03. 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/ Veena Bhatia, Attorney-in-Fact for Cannon-Brookes Michael 2023-12-14