[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 sales of Class A common stock executed on 10/06/2025 under a Rule 10b5‑1 trading plan adopted on 02/20/2025. The filings show eight separate sale entries totaling 7,665 shares at weighted‑average prices ranging from about $149.09 to $156.33, with the largest single block reported as 2,600 shares. After these transactions, beneficial ownership held indirectly through CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust is reported at 459,900 shares. The Form 4 is signed by an attorney‑in‑fact and includes footnotes disclosing execution in multiple trades and the trustee ownership vehicle.

Positive

• Sales executed under a Rule 10b5‑1 plan, adopted on 02/20/2025, which provides preclearance and structure for insider trades
• Detailed footnotes disclose that transactions were executed in multiple trades with weighted‑average prices, improving transparency

Negative

• Aggregate sale of 7,665 shares by the CEO on 10/06/2025, reducing indirect beneficial ownership to 459,900 shares
• Multiple single‑day sale entries at varying prices may prompt investor scrutiny despite being under a trading plan

Insights

Corporate Governance Analyst

TL;DR: The CEO executed preplanned sales totaling 7,665 shares under a 10b5‑1 plan on 10/06/2025.

The transactions were reported as Rule 10b5‑1 sales, indicating the trades were made under a preexisting written plan adopted on 02/20/2025. The Form 4 lists eight sale entries with weighted‑average prices disclosed in footnotes and an aggregate amount of 7,665 shares sold.

Dependencies and near‑term items to watch include the continued ownership level of 459,900 shares reported after the sales and any subsequent Form 4 filings that would change beneficial ownership. The use of a 10b5‑1 plan reduces questions about trading timing but investors may monitor additional filings for further sales or changes to the plan.

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)
10/06/2025

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	10/06/2025		S(1)		500	D	$154.2551(2)	467,065	I	See Footnote(3)
Class A Common Stock	10/06/2025		S(1)		2,065	D	$149.845(4)	465,000	I	See Footnote(3)
Class A Common Stock	10/06/2025		S(1)		50	D	$156.33	464,950	I	See Footnote(3)
Class A Common Stock	10/06/2025		S(1)		550	D	$151.0538(5)	464,400	I	See Footnote(3)
Class A Common Stock	10/06/2025		S(1)		800	D	$151.8407(6)	463,600	I	See Footnote(3)
Class A Common Stock	10/06/2025		S(1)		2,600	D	$149.0897(7)	461,000	I	See Footnote(3)
Class A Common Stock	10/06/2025		S(1)		850	D	$153.0716(8)	460,150	I	See Footnote(3)
Class A Common Stock	10/06/2025		S(1)		250	D	$155.3858(9)	459,900	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 $153.91 to $154.67. 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 $149.47 to $150.24. 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 $150.52 to $151.50. 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.

6. This transaction was executed in multiple trades during the day at prices ranging from $151.56 to $152.32. 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 $148.46 to $149.45. 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 $152.64 to $153.59. 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 $155.26 to $155.61. 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	10/07/2025
	** 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 (TEAM) report on Form 4?

The Form 4 reports that Michael Cannon‑Brookes sold 7,665 shares of Class A common stock on 10/06/2025 under a Rule 10b5‑1 plan.

Were the sales executed under a prearranged trading plan for TEAM insider?

Yes. The transactions were made pursuant to a Rule 10b5‑1 trading plan adopted on 02/20/2025.

What prices were the TEAM shares sold at?

Footnotes disclose weighted‑average execution prices across multiple trades ranging approximately from $149.09 to $156.33 depending on the sale line item.

How many TEAM shares does the filing show remaining after these sales?

The filing reports indirect beneficial ownership of 459,900 shares following the reported transactions.

Who holds the shares reported as indirectly owned by Cannon‑Brookes?

Shares are held by CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust, per the Form 4 footnote.