[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, CEO and co-founder of Atlassian Corporation (TEAM), reported insider sales on 09/12/2025 under a Rule 10b5-1 plan adopted February 20, 2025. The Form 4 shows three sell transactions of Class A common stock: 735 shares at a weighted-average $176.4988, 3,310 shares at $175.4916, and 3,620 shares at $174.6063, executed in multiple trades that day. Shares are held indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. Beneficial ownership after the last reported sale was 91,980 shares. The filing is signed by an attorney-in-fact on 09/16/2025.

Positive

• Transactions disclosed under a Rule 10b5-1 plan, indicating trades were pre-planned (adopted February 20, 2025).
• Filing provides weighted-average prices and undertakes to supply transaction-level details to SEC staff or security holders on request.
• Indirect ownership structure disclosed (CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust).

Negative

• Insider sold 7,665 shares on 09/12/2025, reducing beneficial holdings from prior levels to 91,980 shares.
• Sales executed across multiple trades; while explained, the batch execution introduces price variation across the reported weighted-average figures.

Insights

Financial Analyst

TL;DR Insider sales under a pre-established 10b5-1 plan reduced beneficial holdings modestly; transactions were disclosed fully.

The trades total 7,665 shares sold across three reported lots on 09/12/2025 at weighted-average prices between $174.61 and $176.50. The use of a 10b5-1 plan indicates the trades were pre-planned rather than opportunistic. The filing shows indirect ownership via a trustee, with 91,980 shares remaining after the transactions. From an analytics perspective, the disclosure is timely and provides price ranges and an undertaking to furnish transaction-level details upon request, aiding transparency.

Corporate Governance Expert

TL;DR Proper protocol followed: Form 4 filed, 10b5-1 plan cited, and trustee-held shares disclosed.

The report complies with Section 16 requirements by identifying the reporting person, relationship to the issuer (Director, 10% owner, Officer), and the Rule 10b5-1 trading plan adoption date. Indirect ownership through CBC Co Pty Limited as trustee is disclosed, and the filer commits to provide detailed execution data on request. This level of disclosure aligns with best practices for insider transaction transparency.

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
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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)
09/12/2025

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	09/12/2025		S(1)		735	D	$176.4988(2)	98,910	I	See Footnote(3)
Class A Common Stock	09/12/2025		S(1)		3,310	D	$175.4916(4)	95,600	I	See Footnote(3)
Class A Common Stock	09/12/2025		S(1)		3,620	D	$174.6063(5)	91,980	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 $176.12 to $177.05. 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 $175.10 to $176.08. 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 $174.10 to $175.09. 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	09/16/2025
	** 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 transactions did Michael Cannon-Brookes report for TEAM on 09/12/2025?

He reported three sales totaling 7,665 Class A shares on 09/12/2025 under a Rule 10b5-1 plan, at weighted-average prices of $176.4988, $175.4916, and $174.6063.

How many TEAM shares does Cannon-Brookes beneficially own after these transactions?

The Form 4 reports 91,980 shares beneficially owned following the last reported sale.

Were the trades part of a planned program or ad hoc sales?

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

Who holds the shares on behalf of Cannon-Brookes?

Shares are held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, as disclosed in the Form 4.

When was the Form 4 signed and filed?

The signature block shows the form was signed by an attorney-in-fact on 09/16/2025.