Exhibit 4.1

 



ZQ|CERT#|COY|CLS|RGSTRY|ACCT#|TRANSTYPE|RUN#|TRANS#   . CLASS A ORDINARY SHARES NOMINAL VALUE $0.10 CLASS A ORDINARY SHARES THIS   CERTIFICATE IS TRANSFERABLE IN CANTON, MA, JERSEY CITY, NJ AND COLLEGE   STATION, TX Shares * * 000000 * * * * * * * * * * * * * * * * * * * * *   000000 * * * * * * * * * * * * * * * * * * * * * 000000 * * * * * * * * * * *   * * * * * * * * * * 000000 * * * * * * * * * * * * * * * * * * * * * 000000 *   * * * * * * * * * * * * * Certificate Number ZQ00000000 ATLASSIAN CORPORATION   PLC INCORPORATED UNDER THE LAWS OF ENGLAND AND WALES WITH COMPANY NUMBER   08776021 ** Mr. Alexander David Sample **** Mr. Alexander David Sample ****   Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander   David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample   **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.   Alexander David THIS CERTIFIES THAT Sample **** Mr. Alexander David Sample   **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.   Alexander David Sample **** Mr. Alexander Alexander David SamMple ***R* Mr.   A.lexaSnderADavidMSampPle ***L* MrE. Alexan&der DavMid SamRple **S** Mr..   AleSxandeAr DaMvid SamPple *L*** MEr. Alex&ander David Sample **** David   Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample ****   Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Mr.   Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander   David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample   Sample **** Mr. AlexandeMr DaviRd Sam.ple S**** MAr. AleMxandePr DavLid   SEample *&*** Mr. AMlexanRder DaSvid S.ampSle ***A* Mr.MAlexanPder   DLavidESample **** Mr. Alexander **** Mr. Alexander David Sample **** Mr.   Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander   David Sample **** Mr. Alexander David SEE REVERSE FOR CERTAIN DEFINITIONS   David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample   **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.   Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander   David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample   **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.   Alexander David Sample **** Mr. Alexander David Sample **** Mr. Sample ****   Mr. Sample is the owner of   **000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares***   *000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****   000000**Shar*es****0*000Z00**SEhareRs****00O0000**ShHares**U**0000N00**SDhares*R***000E000**DShares**T**000H000**SOhares*U***000S000**AShareNs****00D0000**Shares****0   00000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****00   0000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000   000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****0000   00**Shares****0Z0000E0**ShRares***O*000000*H*ShareUs****0N00000D**SharRes****0E0000D0**ShareAs****0N00000D**SharesZ****00E0000R**SharOes****0*000*00**Shares****00000   0**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000   **Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000*   *Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**   Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**S   FULLY-PAID AND NON-ASSESSABLE SHARES OF CLASS A ORDINARY SHARES OF Atlassian   Corporation Plc transferable in accordance with, and subject to, the   Company’s articles of association on the books of the Company in person or by   duly authorized attorney upon surrender of this certificate properly   endorsed. This certificate is not valid unless countersigned by the Transfer   Agent and registered by the Registrar. Witness the facsimile signatures of   its duly authorized officers. DATED DD-MMM-YYYY COUNTERSIGNED AND REGISTERED:   COMPUTERSHARE TRUST COMPANY, N.A. TRANSFER AGENT AND REGISTRAR, Director By   Director AUTHORIZED SIGNATURE CUSIP Holder ID Insurance Value Number of   Shares DTC Certificate Numbers 1234567890/1234567890 1234567890/1234567890   1234567890/1234567890 1234567890/1234567890 1234567890/1234567890   1234567890/1234567890 Total Transaction XXXXXX XX X XXXXXXXXXX 1,000,000.00   123456 12345678 123456789012345 PO BOX 43004, Providence, RI 02940-3004   Num/No. Denom. Total 1 2 3 4 5 6 7 1 2 3 4 5 6 1 2 3 4 5 6 MR A SAMPLE   DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 CUSIP XXXXXX XX X 


    




 






 



. ATLASSIAN   CORPORATION PLC A FULL STATEMENT OF THE POWERS, DESIGNATIONS, PREFERENCES AND   RELATIVE, PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH CLASS OF   SHARES OF THE COMPANY OR SERIES THEREOF AND THE QUALIFICATIONS, LIMITATIONS   OR RESTRICTIONS OF SUCH PREFERENCES AND/OR RIGHTS WILL BE FURNISHED BY THE   COMPANY WITHOUT CHARGE TO ANY SHAREHOLDER WHO SO REQUESTS UPON APPLICATION TO   THE TRANSFER AGENT NAMED ON THE FACE HEREOF OR TO THE OFFICE OF THE SECRETARY   OF THE COMPANY. THE TRANSFER OF THESE SHARES REPRESENTED BY THIS CERTIFICATE   REQUIRES THE COMPLETION OF A SPECIALIZED STOCK TRANSFER FORM AND MAY BE   SUBJECT TO THE UNITED KINGDOM’S HM REVENUE AND CUSTOMS STAMP DUTY. PLEASE   CONTACT THE TRANSFER AGENT FOR ADDITIONAL INFORMATION. (Cust) (Minor) (State)   and not as tenants in common (Cust) (Minor) (State) PLEASE INSERT SOCIAL   SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE For value received, hereby   sell, assign and transfer unto (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS,   INCLUDING POSTAL ZIP CODE, OF ASSIGNEE) Shares of the Ordinary stock   represented by the within Certificate, and do hereby irrevocably constitute   and appoint Attorney to transfer the said stock on the books of the   within-named Company with full power of substitution in the premises. Dated:   20 Signature: Signature: Notice: The signature to this assignment must   correspond with the name as written upon the face of the certificate, in   every particular, without alteration or enlargement, or any change whatever.   The IRS requires that we report the cost basis of certain shares acquired   after January 1, 2011. If your shares were covered by the legislation and you   have sold or transferred the shares and requested a specific cost basis   calculation method, we have processed as requested. If you did not specify a   cost basis calculation method, we have defaulted to the first in, first out   (FIFO) method. Please visit our website or consult your tax advisor if you   need additional information about cost basis. If you do not keep in contact   with us or do not have any activity in your account for the time periods   specified by state law, your property could become subject to state unclaimed   property laws and transferred to the appropriate state. Signature(s)   Guaranteed: Medallion Guarantee Stamp THE SIGNATURE(S) SHOULD BE GUARANTEED   BY AN ELIGIBLE GUARANTOR INSTITUTION (Banks, Stockbrokers, Savings and Loan   Associations and Credit Unions) WITH MEMBERSHIP IN AN APPROVED SIGNATURE   GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15. For US purposes   the following abbreviations, when used in the inscription on the face of this   certificate, shall be construed as though they were written out in full   according to applicable laws or regulations: TEN COM - as tenants in common   UNIF GIFT MIN ACT - ............................................Custodian   ................................................ TEN ENT - as tenants by the   entireties under Uniform Gifts to Minors   Act......................................................... JT TEN - as   joint tenants with right of survivorship UNIF TRF MIN ACT -   ............................................Custodian (until age   ................................) .............................under Uniform   Transfers to Minors Act ................... Additional abbreviations may also   be used though not in the above list.