X0407 4 2023-03-17 0 0001650372 Atlassian Corp TEAM 0001666121 Farquhar Scott C/O ATLASSIAN CORPORATION 350 BUSH STREET, FLOOR 13 SAN FRANCISCO CA 94104 1 1 1 0 Co-CEO, Co-Founder 1 Class A Common Stock 2023-03-17 4 S 0 3489 158.0377 D 91265 I By Trust Class A Common Stock 2023-03-17 4 S 0 1500 157.0669 D 89765 I By Trust Class A Common Stock 2023-03-17 4 S 0 1338 154.7936 D 88427 I By Trust Class A Common Stock 2023-03-17 4 S 0 237 158.628 D 88190 I By Trust Class A Common Stock 2023-03-17 4 S 0 1150 153.9163 D 87040 I By Trust Class A Common Stock 2023-03-17 4 S 0 900 155.7344 D 86140 I By Trust This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 14, 2022. This transaction was executed in multiple trades during the day at prices ranging from $157.54 to $158.44. 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 are held by Skip Enterprises Pty Limited as trustee for the Farquhar Family Trust. This transaction was executed in multiple trades during the day at prices ranging from $156.48 to $157.42. 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 $154.40 to $155.33. 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 $158.57 to $158.76. 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 $153.34 to $154.32. 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 $155.41 to $156.28. 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 Farquhar Scott 2023-03-21