[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, CEO and co‑founder of Atlassian Corporation (TEAM), reported multiple open‑market dispositions of Class A common stock on 09/18/2025 under a Rule 10b5-1 trading plan. The Form 4 lists six sale transactions totaling 7,665 shares disposed at weighted‑average prices ranging from about $168.88 to $174.88 per share. Following the reported sales, the filing shows 61,320 Class A shares beneficially owned indirectly by CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust. The Form 4 was signed by an attorney‑in‑fact on 09/19/2025.

Positive

• Sales executed under a Rule 10b5-1 trading plan, indicating preplanned transactions adopted February 20, 2025.
• Filing discloses execution price ranges and weighted‑average prices for each grouped sale, and identifies the indirect holding vehicle (CBC Co Pty Limited as trustee).

Negative

• Insider disposed of 7,665 Class A shares on 09/18/2025, reducing indirect beneficial ownership to 61,320 shares.
• No information provided on the dollar value aggregated across all trades in the filing (only per‑line weighted prices and share counts).

Insights

Securities Analyst

TL;DR: Insider sold 7,665 TEAM shares under a preexisting 10b5-1 plan; remaining indirect holding is 61,320 shares.

The transactions are disclosed as sales executed on 09/18/2025 pursuant to a Rule 10b5-1 plan adopted February 20, 2025. Multiple trades produced weighted‑average prices reported per line, indicating intraday executions across specified price ranges. The reporting person retains indirect beneficial ownership through a trustee vehicle; the Form 4 contains no derivative activity. For investors, this is a routine insider sale disclosure rather than a corporate operational or financial development.

Corporate Governance Expert

TL;DR: Disclosure follows standard governance practice: sales via a documented 10b5-1 plan with trustee holdings noted.

The filing clearly states the use of a Rule 10b5-1 trading plan, provides price ranges for each grouped execution, and identifies the indirect ownership vehicle as CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust. The signature was provided by an attorney‑in‑fact. No amendments, option exercises, or acquisitions are reported. The filing is focused on insider liquidity events and contains sufficient explanatory footnotes about execution ranges.

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)
09/18/2025

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	09/18/2025		S(1)		300	D	$174.88(2)	68,685	I	See Footnote(3)
Class A Common Stock	09/18/2025		S(1)		3,319	D	$169.5831(4)	65,366	I	See Footnote(3)
Class A Common Stock	09/18/2025		S(1)		250	D	$171.5925(5)	65,116	I	See Footnote(3)
Class A Common Stock	09/18/2025		S(1)		400	D	$173.1575(6)	64,716	I	See Footnote(3)
Class A Common Stock	09/18/2025		S(1)		1,846	D	$168.8816(7)	62,870	I	See Footnote(3)
Class A Common Stock	09/18/2025		S(1)		1,550	D	$170.6432(8)	61,320	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 $174.37 to $175.30. 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.

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 $169.16 to $170.15. 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 $171.41 to $171.71. 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 $172.77 to $173.63. 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.

7. This transaction was executed in multiple trades during the day at prices ranging from $168.16 to $169.14. 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 $170.18 to $171.17. 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	09/19/2025
	** 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 Form 4 for TEAM?

The Form 4 reports multiple sales of Class A common stock on 09/18/2025 totaling 7,665 shares executed under a Rule 10b5-1 plan.

How many TEAM shares does Cannon-Brookes beneficially own after these transactions?

The filing shows 61,320 Class A shares beneficially owned indirectly by CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust after the reported sales.

Were the sales part of a planned trading program?

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

What price ranges were reported for the executed sales?

The footnotes disclose intraday execution ranges per grouped trade, with weighted‑average line prices reported between about $168.88 and $174.88 per share.

Was any derivative activity reported on this Form 4?

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