[Form 4] Atlassian Corporation Insider Trading Activity

Rhea-AI Filing Summary

Atlassian director and 10% owner Michael Cannon-Brookes reported multiple open-market sales of Class A common stock executed on 08/28/2025 under a Rule 10b5-1 trading plan adopted February 20, 2025. The filing lists five separate sell transactions totaling 7,665 shares at weighted-average prices ranging roughly from $175.15 to $177.59, with per-trade weighted-average prices reported and aggregated beneficial ownership after the trades shown as 168,630 shares held indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. Transactions were signed by an attorney-in-fact on 08/29/2025. The form provides execution price ranges for each lot and offers to provide detailed trade-level information on request.

Positive

• Transactions executed under a Rule 10b5-1 trading plan, which provides pre-established terms and reduces timing concerns

Negative

• Insider disposed of 7,665 Class A shares on 08/28/2025, reducing indirect beneficial ownership to 168,630 shares

Insights

Corporate Governance Expert

TL;DR: Insider sales were executed under a pre-established 10b5-1 plan, indicating planned disposition rather than opportunistic trading.

The filing documents routine, planned disposals by a significant insider executed under a Rule 10b5-1 plan adopted February 20, 2025. The shares were held indirectly via a trustee vehicle; post-sale indirect holding stands at 168,630 Class A shares. From a governance perspective, use of a documented trading plan reduces concerns about selective disclosure or insider timing, but such sales do reduce the insider's stake. No derivative transactions or other compensatory changes were reported.

Securities Analyst

TL;DR: Reported disposals total 7,665 Class A shares across five trades at ~$173–178 per share.

The transaction detail shows five sell lots executed the same day with reported weighted-average prices per lot and provided price ranges for execution. The seller offers to supply trade-level details on request, which helps verify execution. The transactions appear to be normal-course disposals under a 10b5-1 plan; they do not include option exercises or derivative activity. Given the remaining indirect holding of 168,630 shares, the sales represent a modest reduction in beneficial ownership relative to that balance.

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)
08/28/2025

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	08/28/2025		S(1)		2,110	D	$177.0715(2)	174,185	I	See Footnote(3)
Class A Common Stock	08/28/2025		S(1)		2,930	D	$175.8899(4)	171,255	I	See Footnote(3)
Class A Common Stock	08/28/2025		S(1)		1,425	D	$175.1479(5)	169,830	I	See Footnote(3)
Class A Common Stock	08/28/2025		S(1)		400	D	$173.53(6)	169,430	I	See Footnote(3)
Class A Common Stock	08/28/2025		S(1)		800	D	$177.5863(7)	168,630	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 $176.47 to $177.45. 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.

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 $175.42 to $176.38. 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 $174.42 to $175.42. 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 $173.17 to $173.92. 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 $177.47 to $177.80. 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	08/29/2025
	** 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 in the Form 4 for TEAM?

The Form 4 reports five sell transactions on 08/28/2025 totaling 7,665 Class A shares executed under a Rule 10b5-1 plan.

Were the sales part of a 10b5-1 plan?

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

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

The filing shows indirect beneficial ownership of 168,630 Class A shares following the reported trades.

What prices were the shares sold at?

The filing reports weighted-average prices for each lot (approximately $175.15–$177.59) and execution price ranges for the individual trades.

Who holds the shares on behalf of Cannon-Brookes?

Shares are held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust, per the filing.