[Form 4] Atlassian Corporation Insider Trading Activity

Rhea-AI Filing Summary

Atlassian director and 10% owner Michael Cannon-Brookes sold 7,665 shares of Class A common stock on 08/21/2025 under a Rule 10b5-1 trading plan adopted on February 20, 2025. The sales were executed in multiple trades at weighted-average prices of $163.6463, $165.11 and $164.3954, and reduced his indirect holdings (held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust) to 206,955 shares following the transactions. The Form 4 was signed by an attorney-in-fact on 08/22/2025. All transactions are reported as indirect holdings and the filer offers to provide trade-by-trade details upon request.

Positive

• Transactions executed under a Rule 10b5-1 trading plan, indicating pre-planned sales
• Detailed weighted-average prices disclosed and commitment to provide trade-level data on request
• Holdings are held via trustee (CBC Co Pty Limited), consistent with structured estate/tax arrangements

Negative

• Insider sold 7,665 shares, reducing indirect beneficial ownership to 206,955 shares
• Sales by a director and 10% owner may attract investor scrutiny despite 10b5-1 plan status

Insights

Corporate Governance Expert

TL;DR: Routine insider sales under a pre-established 10b5-1 plan; disclosure and trustee holding add transparency.

The filing shows controlled, pre-planned disposals executed under a Rule 10b5-1 plan, which typically mitigate concerns about opportunistic timing by insiders. Ownership is held indirectly via a trustee, consistent with estate or tax planning structures. The disclosure includes weighted-average prices and the filers offer to provide detailed trade-level data, which improves transparency for investors evaluating insider activity.

Securities Analyst

TL;DR: Insider sold 7,665 shares, lowering indirect holdings to 206,955; impact appears neutral absent other material facts.

The aggregate share count sold (7,665) is modest relative to the remaining 206,955 shares reported, and the trades were executed across multiple intra-day prices. Because the sales were conducted under a documented 10b5-1 plan, they likely reflect pre-authorized liquidity rather than a new view on company fundamentals. No derivative transactions or other compensatory changes were reported in this filing.

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)
08/21/2025

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	08/21/2025		S(1)		1,400	D	$163.6463(2)	213,220	I	See Footnote(3)
Class A Common Stock	08/21/2025		S(1)		469	D	$165.11(4)	212,751	I	See Footnote(3)
Class A Common Stock	08/21/2025		S(1)		5,796	D	$164.3954(5)	206,955	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 $163.02 to $164.01. 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 $165.03 to $165.21. 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 $164.02 to $165.00. 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	08/22/2025
	** 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 filing reports that Michael Cannon-Brookes sold 7,665 shares of Atlassian (TEAM) Class A common stock on 08/21/2025 under a Rule 10b5-1 plan.

How many shares does Cannon-Brookes hold after the reported transactions?

After the reported sales, the Form 4 shows 206,955 shares beneficially owned indirectly via CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Were the sales part of a 10b5-1 trading plan?

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

At what prices were the shares sold?

Sales occurred in multiple trades with reported weighted-average prices of $163.6463, $165.11, and $164.3954 for the respective lots; per-lot price ranges are disclosed in the filing.

Who signed the Form 4?

The Form 4 is signed by Veena Bhatia, Attorney-in-Fact for Cannon-Brookes Michael on 08/22/2025.