[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Atlassian director and co-founder Michael Cannon-Brookes sold 7,665 shares of Class A common stock on 09/15/2025 under a pre-established Rule 10b5-1 plan adopted February 20, 2025. The sales executed in multiple trades at weighted-average prices of $175.0399, $174.0083 and $175.9427, and reduced his reported indirect beneficial ownership from 88,444 shares to 84,315 shares held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. The Form 4 was signed by an attorney-in-fact on 09/16/2025 and lists Cannon-Brookes as CEO, co-founder, director and a 10% owner.

Positive

• Sale executed under a Rule 10b5-1 plan, indicating the trades were pre-planned and comply with an established trading program.
• Full disclosure of weighted-average prices and willingness to provide detailed trade-level information upon request to regulators or security holders.

Negative

• Insider disposed of 7,665 Class A shares, reducing beneficial ownership from 88,444 to 84,315 shares held indirectly.
• No purchases or offsetting acquisitions reported in this Form 4 to indicate reinvestment or increased ownership.

Insights

Securities Analyst

TL;DR: Insider sold a small block of shares under a 10b5-1 plan; no new options or derivative activity disclosed.

The filing shows standard non-derivative sales totaling 7,665 Class A shares on a single date, executed via a Rule 10b5-1 plan adopted February 20, 2025. Weighted-average prices are reported for three trade groups, and ownership is described as indirect through a trustee entity. There is no indication of open-market purchases, option exercises, or derivative transactions in this filing. For investors, this is a routine insider liquidity event documented under an established trading plan rather than an ad hoc sale.

Corporate Governance Expert

TL;DR: Transaction was pre-planned and disclosed properly; trustee-held shares remain materially significant.

The report identifies Cannon-Brookes as a director and 10% owner and discloses that remaining shares are held indirectly by CBC Co Pty Limited as trustee for a named trust. The use of a 10b5-1 plan and provision to provide transaction-level price details on request align with disclosure best practices. The Form 4 was executed by an attorney-in-fact, which is permitted. The filing does not raise governance red flags based on the information provided.

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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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).

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)
09/15/2025

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	09/15/2025		S(1)		3,536	D	$175.0399(2)	88,444	I	See Footnote(3)
Class A Common Stock	09/15/2025		S(1)		3,759	D	$174.0083(4)	84,685	I	See Footnote(3)
Class A Common Stock	09/15/2025		S(1)		370	D	$175.9427(5)	84,315	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 $174.54 to $175.53. 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 $173.52 to $174.51. 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 $175.54 to $176.41. 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 did Michael Cannon-Brookes report in his Form 4 for TEAM?

He reported the sale of 7,665 Class A shares on 09/15/2025 under a Rule 10b5-1 plan, with remaining indirect beneficial ownership of 84,315 shares.

Were the sales by TEAM insider Michael Cannon-Brookes pre-planned?

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

What prices were reported for the TEAM share sales?

Weighted-average prices reported: $175.0399, $174.0083 and $175.9427 for the three trade groups executed that day.

How are the remaining TEAM shares held by Cannon-Brookes reported?

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

Who signed the Form 4 for Michael Cannon-Brookes (TEAM)?

The Form 4 was signed by Drew Parkes, Attorney-in-Fact, on 09/16/2025.