[Form 4] Atlassian Corporation Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, Atlassian Corp (TEAM) director, CEO and 10% owner, reported insider sales executed under a Rule 10b5-1 trading plan on 09/08/2025. The reporting shows three sell transactions totaling 7,665 shares at weighted-average prices of $170.386, $171.2306, and $172.16, carried out in multiple trades during the day. After the reported sales the filing lists 122,640 shares beneficially owned by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, an indirect holding. The filing states the 10b5-1 plan was adopted on February 20, 2025, and the reporting person agrees to provide transaction-level details on request.

Positive

• Sales executed under a Rule 10b5-1 plan, indicating pre-scheduled, non-discretionary trading
• Disclosure of trustee and indirect ownership (CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust) adds transparency
• Weighted-average prices and price ranges provided, and the filer offers transaction-level details on request

Negative

• Insider sold 7,665 Class A shares, reducing reported indirect holdings to 122,640 shares
• Multiple intraday trades were used, which may be perceived as greater execution activity than a single block sale

Insights

Corporate Governance Expert

TL;DR: Routine insider disposal under a 10b5-1 plan, disclosed with trustee-held shares; not an immediate governance red flag.

The Form 4 documents scheduled sales by a senior insider using a pre-established Rule 10b5-1 plan, which provides an affirmative defense against allegations of trading on material nonpublic information. Sales were executed across multiple intraday trades and the filer identifies the indirect holding vehicle (CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust), which supports transparency around beneficial ownership structure. From a governance perspective, the filing shows compliance with disclosure rules and willingness to provide detailed execution data on request. This is consistent with orderly liquidity rather than an undisclosed governance event.

Securities Analyst

TL;DR: Insider sold 7,665 TEAM shares via a 10b5-1 plan at ~ $170–$172; disclosure is detailed but reduces indirect holdings.

The transactions total 7,665 Class A shares sold in three tranches with reported weighted-average prices of $170.386, $171.2306, and $172.16. The filing explicitly states the sales occurred pursuant to a 10b5-1 plan adopted on February 20, 2025, and that execution occurred in multiple trades with price ranges provided. After the disposals the indirect beneficial ownership reported is 122,640 shares held through a trustee. For investors, the filing is a clear, routine liquidity event by a high-level insider rather than an operational disclosure; the substantive elements (plan adoption date, execution details, trustee ownership) improve interpretability 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)
09/08/2025

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	09/08/2025		S(1)		781	D	$170.386(2)	129,524	I	See Footnote(3)
Class A Common Stock	09/08/2025		S(1)		3,183	D	$171.2306(4)	126,341	I	See Footnote(3)
Class A Common Stock	09/08/2025		S(1)		3,701	D	$172.16(5)	122,640	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 $169.69 to $170.68. 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.

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 $170.69 to $171.68. 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.

5. This transaction was executed in multiple trades during the day at prices ranging from $171.71 to $172.66. 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	09/09/2025
	** 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 three sell transactions executed on 09/08/2025 under a Rule 10b5-1 plan, totaling 7,665 Class A shares.

Were the sales part of a pre-established trading plan?

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

At what prices were the TEAM shares sold?

Weighted-average prices reported: $170.386, $171.2306, and $172.16; execution price ranges for each tranche are also disclosed in the filing.

How many TEAM shares does the filing show beneficially owned after the sales?

122,640 shares beneficially owned indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust after the reported transactions.

Who holds the shares on behalf of Cannon-Brookes?

CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust is identified as the indirect holder of the reported shares.