[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Atlassian (TEAM) reported insider transactions by CEO, Co‑Founder and Director Michael Cannon‑Brookes. On 10/30/2025, he executed multiple open‑market sales of Class A Common Stock under a Rule 10b5‑1 trading plan adopted on February 20, 2025. The weighted‑average sale prices for the reported lots ranged from $157.876 to $164.1239, with individual lots between 250 and 2,501 shares.

Following these transactions, he beneficially owned 321,930 shares indirectly, held by CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust. These are routine Section 16 filings reflecting insider sales conducted pursuant to a pre‑established plan.

Insights

Corporate Governance Analyst

CEO and 10% owner executed Rule 10b5-1 sales totaling 7,665 shares; plan-driven, with 321,930 shares remaining indirectly held.

On 10/30/2025, **Atlassian Corp (TEAM)** CEO and co-founder, also a **10% Owner**, reported multiple open-market sales of Class A shares under a pre-set **Rule 10b5-1** plan adopted on February 20, 2025. The transactions totaled 7,665 shares sold across several trades with weighted-average prices disclosed, including ranges around $157.51–$158.30, $159.56–$160.50, and up to $163.73–$164.58.

Following these trades, the reporting person shows **321,930** shares beneficially owned, held indirectly through **CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust**. The filing specifies weighted-average pricing and undertakes to provide detailed trade breakdowns upon request, aligning with standard reporting practice for aggregated executions.

The key takeaway: these are scheduled sales under a disclosed 10b5-1 plan, which can reduce interpretive risk around timing. Items to watch include any subsequent Form 4s tied to this plan and changes in indirect holdings. The next informative checkpoints would be future plan-related transactions or updates to beneficial ownership as they occur after 10/30/2025.

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)
10/30/2025

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	10/30/2025		S(1)		250	D	$157.876(2)	329,345	I	See Footnote(3)
Class A Common Stock	10/30/2025		S(1)		434	D	$160.0925(4)	328,911	I	See Footnote(3)
Class A Common Stock	10/30/2025		S(1)		500	D	$159.08(5)	328,411	I	See Footnote(3)
Class A Common Stock	10/30/2025		S(1)		2,030	D	$162.259(6)	326,381	I	See Footnote(3)
Class A Common Stock	10/30/2025		S(1)		2,501	D	$161.0107(7)	323,880	I	See Footnote(3)
Class A Common Stock	10/30/2025		S(1)		1,150	D	$164.1239(8)	322,730	I	See Footnote(3)
Class A Common Stock	10/30/2025		S(1)		800	D	$163.1353(9)	321,930	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 $157.51 to $158.30. 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 $159.56 to $160.50. 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.

5. This transaction was executed in multiple trades during the day at prices ranging from $158.55 to $159.52. 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 $161.69 to $162.68. 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 $160.62 to $161.53. 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 $163.73 to $164.58. 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 $162.70 to $163.68. 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	10/31/2025
	** 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?

Insider sales of Class A Common Stock by CEO Michael Cannon‑Brookes on 10/30/2025 across multiple transactions.

Were the sales made under a 10b5-1 plan?

Yes. The transactions were effected under a Rule 10b5‑1 trading plan adopted on February 20, 2025.

What prices were reported for the sales?

Weighted‑average prices for the lots ranged from $157.876 to $164.1239, with detailed ranges provided in the footnotes.

How many shares does the insider own after the transactions?

He beneficially owned 321,930 shares indirectly after the reported sales.

How is the ownership held?

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

What is the insider’s role at Atlassian (TEAM)?

He is a Director, CEO, Co‑Founder, and a 10% owner.

What were some individual lot sizes on the trade date?

Reported lots included 250, 434, 500, 2,030, 2,501, 1,150, and 800 shares.