[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Atlassian Corp (TEAM) CEO and co-founder Michael Cannon-Brookes reported selling a total of 7,665 shares of Class A common stock on November 17, 2025 in multiple open-market transactions under a Rule 10b5-1 trading plan adopted on February 20, 2025. The reported weighted-average sale prices for the trades ranged from $145.7745 to $151.64 per share, with each line item reflecting executions within specified intraday price ranges. Following these sales, 229,950 Class A shares are reported as beneficially owned indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Insights

Equity Ownership Analyst

CEO and 10% owner executed planned insider sale of 7,665 shares under a Rule 10b5-1 plan; net impact appears modest.

The filing shows that **Atlassian Corp** CEO and co-founder **Michael Cannon-Brookes**, a **director and 10% owner**, sold an aggregate of 7,665 shares of **Class A Common Stock** on 11/17/2025. All sales used transaction code "S" and were made indirectly through **CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust**, which continues to hold 229,950 shares after the trades, down from 237,615 shares before them. The sales were executed at weighted-average prices between about $145.77 and $151.64, across multiple trades within specified intraday ranges.

The key context is that the activity occurred under a pre-arranged **Rule 10b5-1 trading plan** adopted on February 20, 2025, which is designed to systematize sales and provide an affirmative defense against insider trading concerns. The filing reports no derivative security transactions in Table II, which indicates no new options or similar instruments were involved in this particular set of trades. The ownership remains **indirect**, with the trust structure clearly disclosed, and the number of shares sold represents only a portion of the reported indirect holdings.

From a monitoring perspective, this reflects routine portfolio management by a major insider under a disclosed plan rather than an abrupt change in position. The remaining 229,950 indirectly held shares suggest continued meaningful exposure through the trust. A useful reference point for future filings will be whether subsequent Form 4 reports show similar plan-driven sales after 11/17/2025, as that would indicate an ongoing schedule rather than a one-off adjustment.

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)
11/17/2025

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	11/17/2025		S(1)		900	D	$148.5955(2)	236,715	I	See Footnote(3)
Class A Common Stock	11/17/2025		S(1)		2,601	D	$147.8784(4)	234,114	I	See Footnote(3)
Class A Common Stock	11/17/2025		S(1)		250	D	$151.11(5)	233,864	I	See Footnote(3)
Class A Common Stock	11/17/2025		S(1)		400	D	$149.8496(6)	233,464	I	See Footnote(3)
Class A Common Stock	11/17/2025		S(1)		50	D	$151.64	233,414	I	See Footnote(3)
Class A Common Stock	11/17/2025		S(1)		1,250	D	$146.7845(7)	232,164	I	See Footnote(3)
Class A Common Stock	11/17/2025		S(1)		2,214	D	$145.7745(8)	229,950	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 $148.40 to $148.82. 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 $147.39 to $148.37. 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 $150.45 to $151.42. 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 $149.44 to $150.17. 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 $146.34 to $147.30. 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 $145.28 to $146.26. 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	11/18/2025
	** 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

What insider transaction did Atlassian (TEAM) report in this Form 4?

Atlassian Corp (TEAM) reported that CEO and co-founder Michael Cannon-Brookes sold a total of 7,665 shares of Class A common stock in multiple transactions on November 17, 2025.

At what prices did the Atlassian (TEAM) CEO sell shares on November 17, 2025?

The reported weighted-average sale prices ranged from $145.7745 to $151.64 per share, with underlying trades executed within narrower intraday price ranges noted in the footnotes.

How many Atlassian (TEAM) shares does Michael Cannon-Brookes still beneficially own after these sales?

After the reported transactions, Michael Cannon-Brookes is shown as beneficially owning 229,950 shares of Atlassian Class A common stock, held indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Were the Atlassian (TEAM) insider sales made under a Rule 10b5-1 trading plan?

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

Did the Atlassian (TEAM) Form 4 report any derivative securities transactions?

No derivative securities transactions are listed in Table II. The reported activity relates only to non-derivative Class A common stock sales.

How many separate stock sale transactions did the Atlassian (TEAM) Form 4 disclose for November 17, 2025?

The Form 4 lists seven separate sale line items for Class A common stock on November 17, 2025, each with its own number of shares and weighted-average sale price.