[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Atlassian (TEAM) CEO, Director and 10% owner Michael Cannon-Brookes reported open-market sales totaling 7,665 Class A shares on 10/15/2025 under a Rule 10b5-1 trading plan adopted on February 20, 2025.

The sales were executed in multiple trades at weighted-average prices, with intraday ranges spanning $149.75 to $158.44. After these transactions, 406,245 Class A shares were beneficially owned indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Insights

Corporate governance analyst

Pre-arranged insider sales; routine Form 4 disclosure.

Michael Cannon-Brookes disclosed multiple open-market sales executed on 10/15/2025 pursuant to a pre-adopted Rule 10b5-1 plan dated February 20, 2025. Such plans automate trading to reduce discretion and potential trading-window constraints.

Trades occurred across several lots with weighted-average pricing and specified intraday ranges from $149.75 to $158.44. Post-trade, indirect beneficial ownership stands at 406,245 Class A shares held via a trust arrangement.

This is an administrative insider transaction disclosure. Market impact depends on broader context and holder activity; no operational or strategic changes are indicated in the excerpt.

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)
10/15/2025

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	10/15/2025		S(1)		3,130	D	$151.2116(2)	410,780	I	See Footnote(3)
Class A Common Stock	10/15/2025		S(1)		200	D	$156.58(4)	410,580	I	See Footnote(3)
Class A Common Stock	10/15/2025		S(1)		610	D	$152.1347(5)	409,970	I	See Footnote(3)
Class A Common Stock	10/15/2025		S(1)		150	D	$158.0833(6)	409,820	I	See Footnote(3)
Class A Common Stock	10/15/2025		S(1)		2,235	D	$150.3627(7)	407,585	I	See Footnote(3)
Class A Common Stock	10/15/2025		S(1)		700	D	$153.6695(8)	406,885	I	See Footnote(3)
Class A Common Stock	10/15/2025		S(1)		490	D	$154.4334(9)	406,395	I	See Footnote(3)
Class A Common Stock	10/15/2025		S(1)		150	D	$155.65(10)	406,245	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 $150.76 to $151.75. 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 $156.25 to $156.90. 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 $151.76 to $152.73. 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 $157.88 to $158.44. 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 $149.75 to $150.74. 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 $153.12 to $154.05. 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.

9. This transaction was executed in multiple trades during the day at prices ranging from $154.17 to $154.99. 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 $155.20 to $156.05. 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.

Remarks:

	/s /Drew Parkes, Attorney-in-Fact for Cannon-Brookes Michael	10/16/2025
	** 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 Atlassian (TEAM) disclose in this Form 4?

Open-market sales by CEO Michael Cannon-Brookes totaling 7,665 Class A shares on 10/15/2025 under a Rule 10b5-1 plan.

When was the Rule 10b5-1 plan adopted for TEAM insider trades?

The trading plan was adopted on February 20, 2025.

What prices were the TEAM shares sold at?

Sales were in multiple lots at weighted-average prices, with intraday ranges from $149.75 to $158.44.

How many Atlassian shares does Michael Cannon-Brookes own after the sales?

He beneficially owns 406,245 Class A shares indirectly after the reported transactions.

How are the TEAM shares held after the transaction?

Indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Were any derivative securities involved in this Form 4?

No. The derivative securities table shows no derivative transactions reported.