[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, listed as CEO, Director and 10% owner of Atlassian Corporation (ticker TEAM), reported multiple open-market sales of Class A common stock executed on 10/01/2025. The transactions were made under a Rule 10b5-1 trading plan adopted on February 20, 2025. Following the series of sales the Form 4 shows beneficial ownership held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust decreased from 490,160 shares to 482,895 shares.

Sales were executed in multiple trades at reported weighted-average prices ranging from about $149.6221 to $157.9332 across separate lots; several explanatory footnotes list intraday price ranges. The Form 4 is signed by an attorney-in-fact on behalf of Mr. Cannon-Brookes.

Positive

• Transactions were made under a Rule 10b5-1 trading plan, indicating prearranged sales rather than opportunistic timing
• Filing discloses indirect ownership vehicle (CBC Co Pty Limited as trustee), improving transparency on beneficial ownership

Negative

• Indirect beneficial holdings decreased from 490,160 to 482,895 shares, a reduction of 7,265 shares reported on 10/01/2025
• Multiple open-market sales at prices between the reported weighted averages could be viewed unfavorably by some investors

Insights

Corporate Governance Analyst

Insider sold shares under a prearranged 10b5-1 plan, reducing indirect holdings by 7,265 shares.

The Form 4 documents multiple sales of Class A common stock on 10/01/2025 by Michael Cannon-Brookes under a Rule 10b5-1 plan adopted on February 20, 2025. The filings state the shares are held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

This is procedurally important: 10b5-1 plans establish prearranged trading instructions, which can reduce concerns about opportunistic timing but do not eliminate investor interpretation of insider selling.

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
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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)
10/01/2025

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	10/01/2025		S(1)		400	D	$157.9332(2)	490,160	I	See Footnote(3)
Class A Common Stock	10/01/2025		S(1)		1,617	D	$149.6221(4)	488,543	I	See Footnote(3)
Class A Common Stock	10/01/2025		S(1)		646	D	$152.7183(5)	487,897	I	See Footnote(3)
Class A Common Stock	10/01/2025		S(1)		50	D	$162.04	487,847	I	See Footnote(3)
Class A Common Stock	10/01/2025		S(1)		450	D	$155.1662(6)	487,397	I	See Footnote(3)
Class A Common Stock	10/01/2025		S(1)		150	D	$156.44(7)	487,247	I	See Footnote(3)
Class A Common Stock	10/01/2025		S(1)		2,737	D	$150.4564(8)	484,510	I	See Footnote(3)
Class A Common Stock	10/01/2025		S(1)		200	D	$159.865(9)	484,310	I	See Footnote(3)
Class A Common Stock	10/01/2025		S(1)		541	D	$151.4119(10)	483,769	I	See Footnote(3)
Class A Common Stock	10/01/2025		S(1)		500	D	$161.101(11)	483,269	I	See Footnote(3)
Class A Common Stock	10/01/2025		S(1)		374	D	$153.8031(12)	482,895	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 $157.53 to $158.47. 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 $149.07 to $150.03. 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 $152.20 to $153.01. 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 $154.63 to $155.57. 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 $156.31 to $156.51. 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 $150.07 to $151.04. 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 $159.56 to $160.33. 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.

10. This transaction was executed in multiple trades during the day at prices ranging from $151.08 to $151.85. 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.

11. This transaction was executed in multiple trades during the day at prices ranging from $160.61 to $161.57. 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.

12. This transaction was executed in multiple trades during the day at prices ranging from $153.29 to $154.16. 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	10/02/2025
	** 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 multiple sales of Class A common stock executed on 10/01/2025 under a Rule 10b5-1 trading plan.

How many shares did the reporting person hold after the transactions?

The Form 4 shows indirect beneficial ownership of 482,895 shares following the reported transactions.

How many shares were sold according to the Form 4?

Indirect holdings decreased from 490,160 to 482,895, a reported reduction of 7,265 shares.

Under what plan were the sales executed?

The sales were effected pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025.

What were the reported price ranges for the trades?

The Form 4 lists weighted-average prices and intraday ranges; reported weighted-average prices include $149.6221 and $157.9332, with detailed intraday ranges in footnotes.