[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, CEO and co-founder of Atlassian Corp (TEAM), reported multiple sales of Class A common stock on 09/26/2025 executed pursuant to a Rule 10b5-1 trading plan adopted February 20, 2025. The Form 4 lists six separate sale entries executed that day at weighted-average prices ranging from $162.0356 to $166.5759 (individual price ranges provided in footnotes). The reported dispositions total 7,665 shares sold across the transactions. Post-transaction beneficial ownership is reported indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, with the last reported holding shown as 15,330 shares indirectly owned. The filing is signed by an attorney-in-fact on behalf of the reporting person.

Positive

• Transactions were executed under a Rule 10b5-1 trading plan, which provides pre-established compliance documentation.
• Weighted-average prices and price ranges are disclosed in footnotes, offering transparency on execution prices.

Negative

• A total of 7,665 Class A shares were sold on a single day, representing a material disposition by a principal insider.
• Post-transaction beneficial holdings decreased to as low as 15,330 shares indirectly, per the last line reported.

Insights

Securities Analyst

TL;DR: Insider sold 7,665 TEAM shares under a pre-established 10b5-1 plan; sales were executed at mid-$160s per share.

The trades are routine dispositions under a documented trading plan, with multiple executions aggregated and reported with weighted-average prices. The filing discloses that shares remain held indirectly via a trust, indicating ongoing indirect ownership. For investors, the transaction documents liquidity being taken by a major shareholder but provides no new operational or financial information about Atlassian itself.

Corporate Governance Expert

TL;DR: Use of a 10b5-1 plan demonstrates compliance with insider trading rules while effecting significant share sales.

The report explicitly states the sales were effected pursuant to a Rule 10b5-1 plan adopted earlier in the year, which supports procedural compliance and reduces concerns about timing related to nonpublic information. The filings identify indirect ownership through a trustee, clarifying beneficial ownership structure. No departures from governance norms or unusual reporting patterns are evident in the document.

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)
09/26/2025

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	09/26/2025		S(1)		3,170	D	$165.5215(2)	19,825	I	See Footnote(3)
Class A Common Stock	09/26/2025		S(1)		450	D	$162.0356(4)	19,375	I	See Footnote(3)
Class A Common Stock	09/26/2025		S(1)		2,018	D	$166.5759(5)	17,357	I	See Footnote(3)
Class A Common Stock	09/26/2025		S(1)		1,600	D	$164.3144(6)	15,757	I	See Footnote(3)
Class A Common Stock	09/26/2025		S(1)		50	D	$167.14	15,707	I	See Footnote(3)
Class A Common Stock	09/26/2025		S(1)		377	D	$163.5758(7)	15,330	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 $165.00 to $165.97. 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 $161.66 to $162.40. 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 $166.02 to $166.92. 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 $163.98 to $164.93. 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 $162.92 to $163.87. 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	09/29/2025
	** 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 multiple sales of Class A common stock on 09/26/2025 effected under a Rule 10b5-1 trading plan, with weighted-average prices disclosed.

How many TEAM shares were sold by the reporting person on 09/26/2025?

The Form 4 lists six sale entries totaling 7,665 shares sold on that date.

At what prices were the TEAM shares sold in these transactions?

Weighted-average prices reported range from $162.0356 to $166.5759, with footnotes giving intra-day price ranges for each trade.

How is beneficial ownership held after these transactions?

Shares are reported as held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, with the last reported indirect holding shown as 15,330 shares.

Was the sale part of a pre-arranged plan?

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

Who signed the Form 4 filing?

The filing is signed by Drew Parkes, Attorney-in-Fact for Cannon-Brookes Michael, dated 09/29/2025.