[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, CEO and Co‑Founder of Atlassian Corporation (TEAM), reported three open‑market dispositions of Class A common stock executed on 10/03/2025 under a Rule 10b5‑1 trading plan adopted on 02/20/2025. Total shares sold that day were 7,665 across multiple trades at weighted‑average prices of $151.0315, $150.1571, and $151.6365; per‑trade price ranges are disclosed in the filing. After these sales, beneficial ownership held indirectly through CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust is reported at 467,565 Class A shares (total listed up to 469,809 in one line). The transactions were effected pursuant to the standing 10b5‑1 plan; the filing includes an attorney‑in‑fact signature dated 10/06/2025.

Positive

• Transactions executed under a Rule 10b5‑1 plan, indicating a pre‑arranged, documented trading framework
• Filing discloses execution price ranges and weighted averages and offers to provide full trade details on request
• Reporting person retains substantial indirect ownership (reported at 467,565 to 469,809 Class A shares)

Negative

• Insider disposed of 7,665 Class A shares on 10/03/2025, reducing beneficial holdings
• Multiple small disposals on the same day require monitoring for any pattern of further sales under the plan

Insights

Corporate Governance Expert

Insider sold a small slice of holdings under an approved trading plan.

The sales on 10/03/2025 were executed under a Rule 10b5‑1 plan adopted on 02/20/2025, which creates an affirmative defense against allegations of trading on nonpublic information when properly implemented. The filing lists per‑trade weighted‑average prices and discloses that shares are held indirectly through CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust.

Governance monitors will note the continued substantial indirect ownership (reported as 467,565 to 469,809 shares) and the use of a documented 10b5‑1 plan; expect routine monitoring of any further scheduled transactions within the plan over the coming quarters.

Insider‑Trading Compliance Expert

Form 4 details execution ranges and offers traceability for the trades.

The filer provides weighted‑average prices and ranges for each reported disposal and explicitly offers to provide full execution details to the SEC, issuer, or a security holder upon request, which aligns with disclosure best practices. The transactions are reported as sales (code S) and the form is signed by an attorney‑in‑fact.

Compliance teams would typically confirm the 10b5‑1 plan adoption date (02/20/2025) and review whether trades conformed to any blackout periods; any follow‑up would be administrative and documentary rather than substantive unless additional undisclosed trades appear.

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)
10/03/2025

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	10/03/2025		S(1)		5,421	D	$151.0315(2)	469,809	I	See Footnote(3)
Class A Common Stock	10/03/2025		S(1)		1,819	D	$150.1571(4)	467,990	I	See Footnote(3)
Class A Common Stock	10/03/2025		S(1)		425	D	$151.6365(5)	467,565	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 $150.50 to $151.49. 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 $149.47 to $150.46. 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 $151.50 to $151.80. 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	10/06/2025
	** 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 report on the Form 4 for TEAM?

He reported three sales totaling 7,665 Class A shares executed on 10/03/2025 under a Rule 10b5‑1 trading plan.

Were the trades part of a pre‑arranged plan (10b5‑1)?

Yes. The filing states the trades were effected pursuant to a Rule 10b5‑1 trading plan adopted on 02/20/2025.

What prices were the TEAM shares sold at?

The filing reports weighted‑average prices of $151.0315, $150.1571, and $151.6365, with intra‑day ranges disclosed for each line.

How many TEAM shares does the reporting person still indirectly own?

After the reported sales, beneficial ownership is reported as between 467,565 and 469,809 Class A shares held indirectly through the named trust.

Who signed the Form 4 for Michael Cannon‑Brookes?

The form is signed by /s/ Drew Parkes, Attorney‑in‑Fact dated 10/06/2025.