[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, CEO and co-founder of Atlassian Corporation (TEAM), reported multiple open-market sales of Class A common stock on 09/23/2025 under a Rule 10b5-1 trading plan adopted February 20, 2025. The Form 4 lists six separate dispositions totaling 7,665 shares, executed in multiple trades at reported weighted-average prices ranging roughly from $164.92 to $170.23 per share. The shares are held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. The Form was signed by an attorney-in-fact on 09/24/2025.

Insights

Securities Analyst

TL;DR: Insider sales of 7,665 TEAM shares were executed under a pre-existing 10b5-1 plan; disclosures are routine and informational.

The filing documents multiple sales by the CEO on a single day under a Rule 10b5-1 plan adopted February 20, 2025. Total shares disposed were 7,665 across six transactions with reported weighted-average prices per lot between about $164.92 and $170.23. The holdings remain indirect via CBC Co Pty Limited as trustee for a family trust. This Form 4 provides transparency about the disposition method and remaining beneficial ownership counts following each sale.

Corporate Governance Expert

TL;DR: Disclosure is complete for a Section 16 reporting event; use of a 10b5-1 plan indicates planned, not opportunistic, trading.

The statement clearly identifies the reporting persons relationships to the issuer (Director, 10% owner, Officer - CEO/Co-Founder), the 10b5-1 plan adoption date, per-trade weighted-average prices and that shares are held indirectly by a trustee for the Cannon-Brookes Head Trust. The Form includes the post-transaction beneficial ownership counts and an attorney-in-fact signature dated 09/24/2025, meeting standard reporting requirements.

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

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

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)
09/23/2025

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	09/23/2025		S(1)		450	D	$164.918(2)	45,540	I	See Footnote(3)
Class A Common Stock	09/23/2025		S(1)		3,410	D	$166.8863(4)	42,130	I	See Footnote(3)
Class A Common Stock	09/23/2025		S(1)		185	D	$170.2314(5)	41,945	I	See Footnote(3)
Class A Common Stock	09/23/2025		S(1)		2,520	D	$165.977(6)	39,425	I	See Footnote(3)
Class A Common Stock	09/23/2025		S(1)		400	D	$167.7049(7)	39,025	I	See Footnote(3)
Class A Common Stock	09/23/2025		S(1)		700	D	$163.7882(8)	38,325	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 $164.40 to $165.34. 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 $166.45 to $167.36. 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 $170.05 to $170.33. 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.

6. This transaction was executed in multiple trades during the day at prices ranging from $165.45 to $166.44. 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.

7. This transaction was executed in multiple trades during the day at prices ranging from $167.46 to $168.24. 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.

8. This transaction was executed in multiple trades during the day at prices ranging from $163.40 to $164.24. 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 /Drew Parkes, Attorney-in-Fact for Cannon-Brookes Michael	09/24/2025
	** 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 insider activity did Michael Cannon-Brookes report on the Form 4 for TEAM?

The Form 4 reports six dispositions on 09/23/2025 totaling 7,665 Class A shares sold under a Rule 10b5-1 trading plan.

Were the trades planned or spontaneous according to the filing?

The filing states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted February 20, 2025, indicating planned transactions.

How were the shares held according to the Form 4?

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

What prices were reported for the TEAM shares sold?

Weighted-average prices for the reported lots range approximately from $164.92 to $170.23 per share, with each lot executed in multiple trades.

What is Michael Cannon-Brookess relationship to Atlassian as disclosed on the form?

He is reported as a Director, 10% owner, and Officer (CEO, Co-Founder) of Atlassian.