[Form 4] Atlassian Corporation Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes reported multiple dispositions of Atlassian Corporation (TEAM) Class A common stock on 08/11/2025. The Form 4 shows 12 separate sales executed pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025. The reported trades were executed at prices in ranges reported on the form, with the overall execution prices spanning approximately $158.12 to $171.05 and weighted-average prices provided for each block.

After these reported dispositions, the filing shows indirect beneficial ownership of 268,275 shares held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. The reporting person is identified as a Director, 10% owner, and CEO, Co-Founder of the issuer.

Positive

• Sales executed under a Rule 10b5-1 trading plan, indicating pre-arranged transactions adopted on February 20, 2025
• Detailed execution ranges and weighted-average prices provided for each block, offering transparency
• Substantial remaining indirect beneficial ownership of 268,275 shares held via CBC Co Pty Limited as trustee

Negative

• Insider reported 12 separate dispositions of Class A common stock on a single date, which may be viewed negatively by some market participants
• Indirect holdings declined to 268,275 shares following the reported transactions

Insights

Securities Analyst

TL;DR: Twelve planned sales under a Rule 10b5-1 plan reduced indirect holdings but left substantial ownership intact.

The Form 4 documents 12 discrete dispositions on a single date executed under a pre-established 10b5-1 plan adopted February 20, 2025. Execution prices across the blocks range roughly from $158.12 to $171.05 with weighted-average prices reported per block. The filing shows indirect beneficial ownership of 268,275 shares after the trades, held via CBC Co Pty Limited as trustee. For investors, the disclosure signals routine, pre-arranged liquidity rather than an unscheduled open-market sell-off.

Corporate Governance Expert

TL;DR: Insider selling was executed under an affirmative-defense plan and retains clear disclosure of beneficial ownership structure.

The reporting person is listed as Director, 10% owner and CEO/Co-Founder, and the shares are held indirectly through a trustee vehicle. The filings include explicit explanatory footnotes describing execution ranges and a commitment to provide full trade details upon request. This level of disclosure aligns with standard governance and Section 16 compliance practices and reduces ambiguity about the nature of the sales.

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)
08/11/2025

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	08/11/2025		S(1)		700	D	$158.7222(2)	275,240	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		450	D	$165.0416(4)	274,790	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		200	D	$170.765(5)	274,590	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		350	D	$169.6343(6)	274,240	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		450	D	$161.5868(7)	273,790	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		760	D	$168.7271(8)	273,030	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		1,335	D	$160.5258(9)	271,695	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		450	D	$164.1153(10)	271,245	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		900	D	$167.6534(11)	270,345	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		1,120	D	$159.7313(12)	269,225	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		750	D	$162.9175(13)	268,475	I	See Footnote(3)
Class A Common Stock	08/11/2025		S(1)		200	D	$166.4625(14)	268,275	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 $158.12 to $159.10. 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 $164.68 to $165.54. 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 $170.42 to $171.05. 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 $169.27 to $170.08. 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 $161.15 to $162.05. 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 $168.18 to $169.13. 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 $160.12 to $161.10. 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.

10. This transaction was executed in multiple trades during the day at prices ranging from $163.56 to $164.50. 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.

11. This transaction was executed in multiple trades during the day at prices ranging from $167.15 to $168.12. 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.

12. This transaction was executed in multiple trades during the day at prices ranging from $159.12 to $160.10. 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.

13. This transaction was executed in multiple trades during the day at prices ranging from $162.50 to $163.40. 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.

14. This transaction was executed in multiple trades during the day at prices ranging from $166.15 to $167.00. 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	08/12/2025
	** 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?

He reported 12 separate sales of Atlassian Class A common stock on 08/11/2025 executed under a Rule 10b5-1 trading plan.

Were the sales under a trading plan for TEAM insider Michael Cannon-Brookes?

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

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

268,275 shares are reported as indirectly beneficially owned via CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

What price range were the TEAM sales executed at?

Execution ranges reported on the form span approximately $158.12 to $171.05, with weighted-average prices provided for each block.

How is the reported ownership held for TEAM insider filings?

Indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, according to the Form 4 footnote.