Atlassian Corp (TEAM) CEO discloses Rule 10b5-1 stock sales and holdings

Rhea-AI Filing Summary

Atlassian Corp CEO and co‑founder Michael Cannon‑Brookes, who is also a director and 10% owner, reported multiple sales of Atlassian Class A common stock on 12/11/2025.

The transactions were coded as open‑market sales and executed under a Rule 10b5‑1 trading plan adopted on February 20, 2025. Reported trades included 2,928 shares at a weighted‑average price of $163.5586, 1,150 shares at $161.8435, and 3,537 shares at $163.043, along with a smaller trade of 50 shares at $164.71. Several were executed in multiple trades within stated intraday price ranges.

Following these transactions, Cannon‑Brookes is shown as beneficially owning 99,645 shares of Class A common stock, held indirectly by CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust.

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

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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).

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)
12/11/2025

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	12/11/2025		S(1)		2,928	D	$163.5586(2)	104,382	I	See Footnote(3)
Class A Common Stock	12/11/2025		S(1)		50	D	$164.71	104,332	I	See Footnote(3)
Class A Common Stock	12/11/2025		S(1)		1,150	D	$161.8435(4)	103,182	I	See Footnote(3)
Class A Common Stock	12/11/2025		S(1)		3,537	D	$163.043(5)	99,645	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 $163.31 to $164.22. 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 $161.22 to $162.21. 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 $162.31 to $163.30. 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	12/12/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

What insider transaction did Atlassian Corp (TEAM) report in this Form 4?

The filing reports that Michael Cannon‑Brookes, Atlassian Corp’s CEO, co‑founder, director and 10% owner, sold multiple blocks of Class A common stock in open‑market transactions on 12/11/2025.

On what date did Michael Cannon-Brookes sell Atlassian (TEAM) shares?

All the reported transactions took place on 12/11/2025, as shown in Table I for the Class A common stock sales.

At what prices were the Atlassian (TEAM) shares sold in this filing?

The reported weighted‑average sale prices include $163.5586, $161.8435, and $163.043, plus a separate transaction at $164.71. Several trades were executed within intraday ranges such as $163.31 to $164.22, $161.22 to $162.21, and $162.31 to $163.30.

How many Atlassian shares does Michael Cannon-Brookes hold after these transactions?

After the reported sales, Michael Cannon‑Brookes is shown as beneficially owning 99,645 shares of Atlassian Class A common stock.

Were the Atlassian (TEAM) share sales made under a Rule 10b5-1 trading plan?

Yes. A footnote states that at least one transaction was effected pursuant to a Rule 10b5‑1 trading plan adopted by the reporting person on February 20, 2025.

How are Michael Cannon-Brookes’ Atlassian shares held according to the filing?

The filing notes that the shares are held by CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust, reflecting indirect beneficial ownership.