[Form 4] Atlassian Corporation Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, CEO, Co-Founder, Director and >10% owner of Atlassian Corporation (TEAM), reported multiple open-market sales of Class A common stock on 09/04/2025 executed pursuant to a Rule 10b5-1 trading plan adopted on 02/20/2025. The Form 4 lists five separate sale line items totaling 7,665 shares sold at weighted-average prices ranging from about $167.10 to $169.90. After the reported transactions the filing shows beneficial ownership falling to 137,970 shares held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. The reporting attorney-in-fact signed the form on 09/05/2025. The filer states willingness to provide detailed trade-level information upon request.

Positive

• Transactions executed under a Rule 10b5-1 plan, indicating pre-established trading instructions.
• Detailed price ranges and weighted-average prices are disclosed and the filer offers to provide full trade-level information upon request.
• Form 4 signed and filed promptly (signature dated 09/05/2025), showing regulatory compliance.

Negative

• Insider sold 7,665 Class A shares on 09/04/2025, reducing beneficial ownership to 137,970 shares held indirectly.
• Reporting person is a >10% owner; insider sales may be material to perceptions of insider alignment even if executed under a 10b5-1 plan.

Insights

Securities Analyst

TL;DR: Routine insider disposition under a pre-established 10b5-1 plan; reduces holdings but follows an adopted trading plan.

The Form 4 documents five sale transactions executed on 09/04/2025 under a Rule 10b5-1 plan adopted 02/20/2025. Total reported disposals equal 7,665 Class A shares across multiple trades at weighted-average prices reported per line between approximately $167 and $169.90. Post-transaction beneficial ownership is reported as 137,970 shares held indirectly. This filing conveys compliance with Section 16 reporting and an explicit 10b5-1 defense; no derivative transactions or other compensatory events are disclosed.

Corporate Governance Expert

TL;DR: Disclosure is consistent and specific; sales are tied to a documented 10b5-1 plan and include undertakings to provide trade details.

The report identifies the reporting person as a CEO, director and >10% owner and specifies that transactions were effected pursuant to a 10b5-1 trading plan. The filing provides weighted-average prices and explains the intraday price ranges for each line item, plus an explicit willingness to supply full trade-level details on request. The signature by an attorney-in-fact is included, and no amendments or derivative positions are reported. Material governance points are disclosure completeness and plan adherence; the filing does not state motives or other corporate actions.

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)
09/04/2025

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	09/04/2025		S(1)		2,855	D	$167.1015(2)	142,780	I	See Footnote(3)
Class A Common Stock	09/04/2025		S(1)		2,587	D	$168.0956(4)	140,193	I	See Footnote(3)
Class A Common Stock	09/04/2025		S(1)		823	D	$169.3346(5)	139,370	I	See Footnote(3)
Class A Common Stock	09/04/2025		S(1)		1,100	D	$166.2947(6)	138,270	I	See Footnote(3)
Class A Common Stock	09/04/2025		S(1)		300	D	$169.9002(7)	137,970	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 $166.67 to $167.66. 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 $167.67 to $168.63. 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 $168.70 to $169.66. 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 $165.65 to $166.64. 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 $169.73 to $170.25. 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	09/05/2025
	** 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 transactions did Michael Cannon-Brookes report for TEAM on 09/04/2025?

The Form 4 reports five sale transactions totaling 7,665 Class A shares sold on 09/04/2025 at weighted-average prices reported between approximately $167.10 and $169.90.

Were the sales by TEAM insider Michael Cannon-Brookes executed under a trading plan?

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

How many TEAM shares does the filing show Cannon-Brookes beneficially owned after the sales?

After the reported transactions the Form 4 shows 137,970 shares beneficially owned indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Does the Form 4 include derivative transactions or option exercises?

No. Table II for derivative securities contains no entries; only non-derivative Class A common stock sales are reported.

Who signed the Form 4 and when?

The Form 4 was signed by Veena Bhatia, Attorney-in-Fact for Michael Cannon-Brookes on 09/05/2025.