[Form 4] Atlassian Corporation Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, CEO and 10% owner of Atlassian Corporation (TEAM), reported multiple open-market sales under a Rule 10b5-1 plan on 08/26/2025. The filings show six sale transactions totaling 7,665 shares executed at weighted-average prices ranging roughly from $164.56 to $169.64. Following the reported sales, beneficial ownership held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust fell from 190,120 shares to 183,960. The reporting person certified the trades were made pursuant to a 10b5-1 trading plan adopted on February 20, 2025.

Insights

Financial Analyst

TL;DR: Insider completed planned, small-volume sales under a 10b5-1 plan; transaction size appears routine and not obviously material.

The report discloses six separate dispositions totaling 7,665 Class A shares executed on 08/26/2025 at weighted-average prices in the mid-$160s. These sales were made pursuant to a 10b5-1 plan adopted February 20, 2025, indicating pre-scheduled disposition rather than opportunistic trading. The shares are held indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust; beneficial ownership decreased from 190,120 to 183,960 shares. For investors, the filing documents transparency of insider liquidity but does not by itself indicate a change in company fundamentals.

Corporate Governance Expert

TL;DR: Use of a documented 10b5-1 plan and attorney-in-fact signature reflect standard governance and compliance practices.

The Form 4 explicitly notes the trades were effected under a Rule 10b5-1 trading plan adopted February 20, 2025, and includes an attorney-in-fact signature dated 08/27/2025. The filing provides weighted-average price ranges and offers to provide detailed trade-level information upon request, which supports regulatory transparency. The indirect holding structure (trust via CBC Co Pty Limited) is disclosed. Overall, this appears to be a compliant, pre-planned insider disposition rather than a governance concern.

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)
08/26/2025

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	08/26/2025		S(1)		1,505	D	$165.179(2)	190,120	I	See Footnote(3)
Class A Common Stock	08/26/2025		S(1)		200	D	$169.635(4)	189,920	I	See Footnote(3)
Class A Common Stock	08/26/2025		S(1)		4,660	D	$164.5556(5)	185,260	I	See Footnote(3)
Class A Common Stock	08/26/2025		S(1)		537	D	$169.1775(6)	184,723	I	See Footnote(3)
Class A Common Stock	08/26/2025		S(1)		330	D	$167.8581(7)	184,393	I	See Footnote(3)
Class A Common Stock	08/26/2025		S(1)		433	D	$166.8756(8)	183,960	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 $165.02 to $165.45. 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.

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 $169.60 to $169.67. 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 $164.00 to $164.98. 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 $168.57 to $169.46. 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.

7. This transaction was executed in multiple trades during the day at prices ranging from $167.57 to $168.55. 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 $166.54 to $167.50. 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	08/27/2025
	** 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 trades did Michael Cannon-Brookes report on Form 4 for TEAM?

The Form 4 shows six sales on 08/26/2025 totaling 7,665 Class A shares, executed at weighted-average prices in the mid-$160s.

Were the TEAM sales by Cannon-Brookes part of a trading plan?

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

How many TEAM shares did Cannon-Brookes beneficially own after the reported sales?

After the transactions, the filing reports 183,960 Class A shares beneficially owned indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Who holds the reported TEAM shares on behalf of Cannon-Brookes?

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

Does the Form 4 indicate the exact execution prices for each trade?

The filing provides weighted-average prices and price ranges for each grouped transaction but notes full trade-level details will be provided upon request to the SEC staff, issuer, or a security holder.