[Form 4] Atlassian Corporation Insider Trading Activity

Rhea-AI Filing Summary

Atlassian (TEAM) insider sales by Michael Cannon-Brookes. The Form 4 reports multiple open-market disposals of Class A common stock on 08/13/2025 executed under a Rule 10b5-1 trading plan adopted February 20, 2025. The filing lists seven separate sale executions totaling 7,665 shares sold, with reported weighted-average prices shown per execution. After these transactions the reporting person beneficially owns 252,945 Class A shares held indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. The Form 4 is signed by an attorney-in-fact on 08/14/2025.

Positive

• Transactions executed under a Rule 10b5-1 plan, providing an affirmative defense and indicating pre-planned dispositions
• Full disclosure of indirect ownership via CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust

Negative

• Insider sold 7,665 Class A shares, reducing beneficial ownership to 252,945 shares
• Multiple sell transactions on a single day could be interpreted as a notable liquidity event despite plan-based execution

Insights

Financial Analyst

TL;DR: Multiple small open-market sales under a pre-established 10b5-1 plan, resulting in a modest reduction in indirect holdings to 252,945 shares.

The transactions are routine insider dispositions executed under a Rule 10b5-1 plan adopted on February 20, 2025, which typically aim to reduce timing-risk and demonstrate pre-planned liquidity. Seven separate sale blocks on 08/13/2025 totaled 7,665 shares, with each block reported at its weighted-average execution price. These sales reduced the reporting person’s indirect beneficial ownership to 252,945 Class A shares held via CBC Co Pty Limited as trustee. From a market-impact perspective, the sizes reported are small relative to typical institutional volumes and the filing contains no indication of material corporate events or changes to compensation or control.

Corporate Governance Expert

TL;DR: Disclosure follows expected governance practices: use of a 10b5-1 plan and trustee-held shares are clearly reported.

The filing includes clear disclosures of the 10b5-1 plan adoption date and the indirect ownership vehicle, which supports transparency and compliance with Section 16 reporting. The reporting person checked boxes indicating director, 10% owner and officer (CEO, Co-Founder) status, and the Form 4 was executed by an attorney-in-fact. There is no indication in the filing of any extraordinary governance actions or changes to board/officer status. Overall, the filing aligns with standard insider reporting and provides the SEC-required execution and ownership detail.

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)
08/13/2025

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	08/13/2025		S(1)		150	D	$158.18(2)	260,460	I	See Footnote(3)
Class A Common Stock	08/13/2025		S(1)		500	D	$159.694(4)	259,960	I	See Footnote(3)
Class A Common Stock	08/13/2025		S(1)		2,350	D	$162.7275(5)	257,610	I	See Footnote(3)
Class A Common Stock	08/13/2025		S(1)		772	D	$160.7109(6)	256,838	I	See Footnote(3)
Class A Common Stock	08/13/2025		S(1)		400	D	$157.4642(7)	256,438	I	See Footnote(3)
Class A Common Stock	08/13/2025		S(1)		782	D	$163.7895(8)	255,656	I	See Footnote(3)
Class A Common Stock	08/13/2025		S(1)		2,711	D	$161.9712(9)	252,945	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 $158.06 to $158.40. 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.

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 $159.25 to $160.15. 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 $162.42 to $163.39. 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 $160.25 to $161.24. 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 $156.91 to $157.90. 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 $163.42 to $164.07. 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.

9. This transaction was executed in multiple trades during the day at prices ranging from $161.41 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.

Remarks:

	/s/ Veena Bhatia, Attorney-in-Fact for Cannon-Brookes Michael	08/14/2025
	** 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?

The Form 4 reports multiple sales executed on 08/13/2025 under a Rule 10b5-1 plan, totaling 7,665 Class A shares, leaving 252,945 shares beneficially owned indirectly.

Were the sales pre-planned or discretionary for TEAM insider trades?

Yes. The Form 4 states the transactions were effected pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025.

How are the shares held according to the filing for TEAM?

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

When were the transactions and who signed the Form 4 for TEAM?

Transactions occurred on 08/13/2025 and the Form 4 was signed by an attorney-in-fact on 08/14/2025.

Does the filing show any derivative transactions for TEAM?

No. Table II (derivative securities) lists no reported derivative acquisitions or dispositions in this filing.