[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, identified as CEO, co-founder and a >10% owner of Atlassian Corporation (TEAM), reported multiple sales of Class A common stock executed under a Rule 10b5-1 trading plan on 09/17/2025. The reporting lines list six separate dispositions totaling 7,665 shares sold at reported weighted-average prices per tranche ranging from about $172.12 to $176.72. After these transactions the report shows an indirect beneficial ownership of 68,985 Class A shares held through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. Each sale line includes a price range for the intra-day executions and an undertaking to provide detailed trade-level information on request.

Positive

• Trades executed under a Rule 10b5-1 plan, indicating pre-authorization and reducing concerns about opportunistic timing
• Reporting person retains material indirect ownership (68,985 Class A shares) via CBC Co Pty Limited as trustee

Negative

• Aggregate insider dispositions of 7,665 Class A shares on 09/17/2025, reducing the reporting person’s stake
• Multiple intra-day executions across price ranges up to $176.72 may be viewed by some investors as a liquidity-driven reduction in holdings

Insights

Corporate Governance Expert

TL;DR: Insider sales followed a pre-established 10b5-1 plan; holdings remain material but sales reduce immediate insider stake.

The transactions were executed pursuant to an established Rule 10b5-1 plan, which generally mitigates concerns about opportunistic timing because trades are pre-authorized. The form discloses that the shares are held indirectly through a trustee structure, indicating continued centralized control of a material stake. From a governance perspective, documented plan-based sales are routine for senior executives and large holders, though investors may note the absolute reduction in beneficial shares.

Securities Analyst

TL;DR: Aggregate insider selling of 7,665 shares is notable in size but appears procedural under a trading plan; interpret as neutral-to-mildly negative signal.

The filing reports six dispositions with weighted-average tranche prices between approximately $171.39 and $176.72, totaling 7,665 shares sold. While the trades were executed under a 10b5-1 plan, which reduces informational timing concerns, the sales materially reduce the reporting person’s immediate indirect holdings to 68,985 shares. For investors, the sales are a liquidity event for the insider rather than a disclosed company performance issue.

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).

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)
09/17/2025

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	09/17/2025		S(1)		1,328	D	$172.1199(2)	75,322	I	See Footnote(3)
Class A Common Stock	09/17/2025		S(1)		950	D	$174.6516(4)	74,372	I	See Footnote(3)
Class A Common Stock	09/17/2025		S(1)		50	D	$176.72	74,322	I	See Footnote(3)
Class A Common Stock	09/17/2025		S(1)		1,400	D	$172.9027(5)	72,922	I	See Footnote(3)
Class A Common Stock	09/17/2025		S(1)		3,737	D	$173.8876(6)	69,185	I	See Footnote(3)
Class A Common Stock	09/17/2025		S(1)		200	D	$175.7449(7)	68,985	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 $171.39 to $172.35. 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 $174.42 to $175.05. 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.

5. This transaction was executed in multiple trades during the day at prices ranging from $172.40 to $173.39. 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 $173.42 to $174.41. 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 $175.47 to $176.21. 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	09/18/2025
	** 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

Who filed the Form 4 for TEAM and what is their relationship to the company?

The reporting person is Michael Cannon-Brookes, identified as CEO, co-founder and a >10% owner of Atlassian Corporation (TEAM).

What transactions were reported on the Form 4 for TEAM?

The form reports six dispositions totaling 7,665 Class A shares sold under a Rule 10b5-1 trading plan on 09/17/2025.

At what prices were the TEAM shares sold?

Each tranche lists a weighted-average price: approximately $172.12, $174.65, $176.72, $172.90, $173.89, and $175.74, with intra-day ranges disclosed per tranche.

How many TEAM shares does the reporting person beneficially own after these transactions?

The Form 4 shows an indirect beneficial ownership of 68,985 Class A shares held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Were the trades pre-planned or discretionary?

The reporting person states the transactions were effected pursuant to a Rule 10b5-1 trading plan adopted February 20, 2025, indicating pre-planned disposition authority.