[Form 4] Atlassian Corporation Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, Atlassian (TEAM) CEO and 10% owner, reported sales of Class A common stock on 09/02/2025 executed under a Rule 10b5-1 trading plan adopted February 20, 2025. The Form 4 shows four disposal transactions totaling 7,665 shares at weighted-average prices ranging roughly from $172.30 to $174.18. Following the reported transactions, the filing records 153,300 Class A shares beneficially owned indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. Each sale was executed in multiple trades during the day; the filer offers to provide detailed trade-level prices and quantities on request.

Positive

• Sales executed under a Rule 10b5-1 plan, supporting an affirmative defense and reducing concerns about opportunistic timing
• Timely Form 4 disclosure with weighted-average prices and willingness to provide trade-level detail on request
• Substantial remaining indirect ownership (153,300 Class A shares) held via CBC Co Pty Limited as trustee

Negative

• Insider disposed of 7,665 Class A shares on 09/02/2025, reducing beneficial holdings
• Multiple intra-day trades executed at varying prices between approximately $171.59 and $174.66, which could be viewed as active selling activity

Insights

Corporate Governance Expert

TL;DR: Insider sales were executed under a pre-established 10b5-1 plan, reducing governance concerns about opportunistic timing.

The transactions were disclosed promptly on Form 4 and explicitly tied to a Rule 10b5-1 plan adopted February 20, 2025, which supports an affirmative defense against insider trading allegations. Reporting shows disposals executed in multiple trades with weighted-average prices provided; the reporting person retains material indirect ownership through a trust (153,300 shares). From a governance perspective, the use of a documented plan and timely disclosure are positive controls for transparency.

Securities Analyst

TL;DR: Insider sold 7,665 TEAM shares on 09/02/2025 at prices near $172–$174; significant residual indirect holdings remain.

The Form 4 lists four sell transactions totaling 7,665 Class A shares with weighted-average execution prices reported between approximately $171.59 and $174.66 across intra-day trades. These disposals reduced beneficial indirect holdings to 153,300 shares held via CBC Co Pty Limited as trustee. The filing is routine and factual; it provides granular price ranges and the reporting person’s willingness to provide full trade details on request, which aids market transparency but does not on its face indicate material change to ownership control.

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)
09/02/2025

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	09/02/2025		S(1)		997	D	$174.1829(2)	159,968	I	See Footnote(3)
Class A Common Stock	09/02/2025		S(1)		2,825	D	$172.3002(4)	157,143	I	See Footnote(3)
Class A Common Stock	09/02/2025		S(1)		3,793	D	$172.9282(5)	153,350	I	See Footnote(3)
Class A Common Stock	09/02/2025		S(1)		50	D	$174.6357(6)	153,300	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 $173.60 to $174.52. 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.

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 $171.59 to $172.58. 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.

5. This transaction was executed in multiple trades during the day at prices ranging from $172.59 to $173.54. 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 $174.61 to $174.66. 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/ Veena Bhatia, Attorney-in-Fact for Cannon-Brookes Michael	09/03/2025
	** 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 transactions did Michael Cannon-Brookes report on Form 4 for TEAM?

He reported four sales on 09/02/2025 disposing a total of 7,665 Class A shares under a Rule 10b5-1 plan.

Under what plan were the TEAM shares sold?

The sales were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 20, 2025.

What prices were the TEAM shares sold at?

The filings report weighted-average execution prices in intra-day trades ranging approximately from $171.59 to $174.66 with specific weighted averages shown per tranche.

How many TEAM shares does Cannon-Brookes beneficially own after these transactions?

153,300 Class A shares beneficially owned indirectly via CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, per the Form 4.

Who signed the Form 4 filing for Michael Cannon-Brookes?

The Form 4 was signed on behalf of the reporting person by Veena Bhatia, Attorney-in-Fact on 09/03/2025.