[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Atlassian Corp (TEAM) reported insider sales by CEO and Co‑Founder Michael Cannon‑Brookes. On 10/17/2025, he sold 7,665 Class A shares in three trades under a Rule 10b5‑1 plan adopted on 02/20/2025. The reported weighted‑average prices were $151.7619 for 3,810 shares, $150.9528 for 2,604 shares, and $150.0514 for 1,251 shares.

Following these transactions, he beneficially owned 390,915 Class A shares indirectly through CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust. The filing lists his roles as Director, 10% Owner, and Officer (CEO, Co‑Founder).

Insights

Corporate governance analyst

Routine insider sale under a pre‑set 10b5‑1 plan; neutral.

The transactions are disclosed as sales pursuant to a Rule 10b5‑1 trading plan adopted on February 20, 2025. Such plans allow insiders to schedule trades in advance, helping separate personal diversification from non‑public information concerns.

Three tranches on October 17, 2025 totaled 7,665 Class A shares at weighted‑average prices of $151.7619, $150.9528, and $150.0514. After these sales, indirect beneficial ownership stands at 390,915 shares via a trust. Actual market impact depends on broader trading volumes and holder activity.

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)
10/17/2025

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	10/17/2025		S(1)		3,810	D	$151.7619(2)	394,770	I	See Footnote(3)
Class A Common Stock	10/17/2025		S(1)		2,604	D	$150.9528(4)	392,166	I	See Footnote(3)
Class A Common Stock	10/17/2025		S(1)		1,251	D	$150.0514(5)	390,915	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 $151.48 to $152.13. 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 $150.47 to $151.45. 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.

5. This transaction was executed in multiple trades during the day at prices ranging from $149.46 to $150.43. 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	10/20/2025
	** 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

How many Atlassian (TEAM) shares did the CEO sell on 10/17/2025?

A total of 7,665 Class A shares were sold across three transactions.

At what prices were the TEAM shares sold?

Weighted‑average prices were $151.7619 (3,810 shares), $150.9528 (2,604 shares), and $150.0514 (1,251 shares).

Was the sale under a Rule 10b5-1 plan?

Yes. The trades were made under a Rule 10b5‑1 plan adopted on 02/20/2025.

How many TEAM shares does the CEO own after the transactions?

He beneficially owned 390,915 Class A shares after the reported sales.

How is the CEO’s ownership in TEAM held?

Indirectly through CBC Co Pty Limited as trustee for the Cannon‑Brookes Head Trust.

What roles does the reporting person hold at Atlassian (TEAM)?

Director, 10% Owner, and Officer (CEO, Co‑Founder).

What SEC form reported these insider transactions?

Form 4 reported the changes in beneficial ownership.