[Form 4] Atlassian Corporation Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, CEO and co-founder of Atlassian Corporation (TEAM), reported multiple sales of Class A common stock on 08/18/2025 under a Rule 10b5-1 trading plan adopted February 20, 2025. The filing shows four dispositions totaling 7,665 shares sold at weighted-average prices ranging roughly from $165.69 to $169.03. After these transactions the reporting person’s beneficial ownership is reported as 229,950 Class A shares held indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

The transactions were effected in multiple trades during the day and the filer offers to provide detailed trade-by-trade prices and quantities upon request to the SEC staff, issuer, or a securityholder. The Form 4 is signed by an attorney-in-fact on behalf of Mr. Cannon-Brookes.

Positive

• Transactions executed under a Rule 10b5-1 plan, indicating pre-established trading instructions
• Full disclosure of weighted-average prices and willingness to provide trade-level details upon request
• Beneficial ownership retained and reported (229,950 Class A shares held indirectly)

Negative

• Insider sold 7,665 Class A shares on 08/18/2025, a material disposition in absolute terms
• Sales executed in multiple intra-day trades, which may be viewed by some investors as higher-frequency disposition rather than a single block sale

Insights

Securities Analyst

TL;DR: Routine insider sales under a pre-established 10b5-1 plan; total of 7,665 Class A shares sold on 08/18/2025.

The filing documents four separate dispositions executed the same day under a Rule 10b5-1 plan adopted February 20, 2025. Aggregate shares disposed equal 7,665 with weighted-average prices reported per line between approximately $165.7 and $169.0. Ownership remains indirect through CBC Co Pty Limited as trustee, and the filer discloses willingness to provide detailed trade-level information on request. For investors, this is a transparent, planned-sale disclosure rather than an unscheduled insider sale.

Corporate Governance Expert

TL;DR: Disclosure aligns with Rule 10b5-1 compliance; sales were executed across multiple trades and fully disclosed in Form 4.

The report identifies the trading plan adoption date and specifies execution ranges for each disposition line, providing the customary undertakings to furnish detailed trade data if requested. Beneficial ownership after the trades is clearly stated as 229,950 Class A shares held indirectly. The filing is procedurally complete and signed by an authorized attorney-in-fact.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Cannon-Brookes Michael

(Last) (First) (Middle)

C/O ATLASSIAN CORPORATION

350 BUSH STREET, FLOOR 13

(Street)

SAN FRANCISCO CA 94104

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Atlassian Corp [ TEAM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	CEO, Co-Founder

3. Date of Earliest Transaction (Month/Day/Year)
08/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	08/18/2025		S(1)		4,597	D	$169.0299(2)	233,018	I	See Footnote(3)
Class A Common Stock	08/18/2025		S(1)		1,918	D	$167.972(4)	231,100	I	See Footnote(3)
Class A Common Stock	08/18/2025		S(1)		200	D	$165.6909(5)	230,900	I	See Footnote(3)
Class A Common Stock	08/18/2025		S(1)		950	D	$166.899(6)	229,950	I	See Footnote(3)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 20, 2025.

2. This transaction was executed in multiple trades during the day at prices ranging from $168.52 to $169.51. 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.

3. Shares are held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

4. This transaction was executed in multiple trades during the day at prices ranging from $167.50 to $168.45. 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.

5. This transaction was executed in multiple trades during the day at prices ranging from $165.21 to $165.92. 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.

6. This transaction was executed in multiple trades during the day at prices ranging from $166.49 to $167.45. 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.

Remarks:

	/s/ Veena Bhatia, Attorney-in-Fact for Cannon-Brookes Michael	08/19/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Michael Cannon-Brookes sell in the Form 4 for TEAM?

He sold 7,665 Class A shares on 08/18/2025 as reported on the Form 4.

Were the sales by TEAM's CEO part of a trading plan?

Yes. The transactions were effected pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025.

At what prices were the TEAM shares sold?

Weighted-average prices reported by line ranged approximately from $165.69 to $169.03, with per-line execution ranges disclosed in the explanations.

How many TEAM shares does the reporting person own after the sales?

The Form 4 reports 229,950 Class A shares beneficially owned following the reported transactions, held indirectly through CBC Co Pty Limited as trustee.

Who signed the Form 4 for Michael Cannon-Brookes?

The Form 4 was signed by Veena Bhatia, Attorney-in-Fact for Michael Cannon-Brookes on 08/19/2025.