[Form 4] Atlassian Corporation Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, CEO and 10% owner of Atlassian Corporation (TEAM), reported multiple sales of Class A common stock on 08/20/2025 under a Rule 10b5-1 trading plan. The Form 4 shows four separate disposition entries totaling 7,665 shares sold at weighted-average prices ranging from $164.9654 to $167.9667 per share. After these trades, beneficial ownership reported for certain holdings declined to as low as 214,620 shares held indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

The filing states the transactions were executed in multiple trades during the day and that the reporting person will provide detailed trade-level information to the SEC upon request. The Form 4 is signed by an attorney-in-fact and notes the sales were made pursuant to a 10b5-1 plan adopted February 20, 2025.

Positive

• Trades executed under a Rule 10b5-1 plan, indicating the sales were pre-planned and aimed at governance compliance
• Willingness to provide detailed trade-level information to the SEC or security holders upon request

Negative

• Insider disposals totaling 7,665 Class A shares reported on 08/20/2025, reducing beneficial ownership to as low as 214,620 shares
• Form 4 discloses multiple sales in a single day, which may be noted by investors as a decrease in insider holdings

Insights

Financial Analyst

TL;DR: Insider sales totaled 7,665 Class A shares under a pre-established 10b5-1 plan; impact appears limited without further context.

The reported disposals on 08/20/2025 were executed under a Rule 10b5-1 plan, with weighted-average prices disclosed for grouped trades. From a market-impact perspective, 7,665 shares is a concrete change in insider holdings but is small relative to typical free float for large-cap software companies. The filing does not provide proceeds or percentage of total outstanding shares, so materiality to TEAM's market capitalization cannot be determined from this document alone. No derivative transactions or other compensatory events are reported.

Corporate Governance Expert

TL;DR: Sales were executed under a documented 10b5-1 plan, which supports compliance and reduces appearance of opportunistic timing.

The disclosure explicitly states the trades were pursuant to a 10b5-1 trading plan adopted February 20, 2025, and provides commitment to furnish trade-level details on request. That adherence to a pre-existing plan and the filing of Form 4 promptly are consistent with standard governance and disclosure practices. The beneficial ownership remains indirect via CBC Co Pty Limited as trustee, and the Form is signed by an authorized attorney-in-fact, indicating procedural completeness.

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)
08/20/2025

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	08/20/2025		S(1)		800	D	$164.9654(2)	221,485	I	See Footnote(3)
Class A Common Stock	08/20/2025		S(1)		326	D	$167.9667(4)	221,159	I	See Footnote(3)
Class A Common Stock	08/20/2025		S(1)		3,957	D	$166.0433(5)	217,202	I	See Footnote(3)
Class A Common Stock	08/20/2025		S(1)		2,582	D	$166.8908(6)	214,620	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 $164.43 to $165.36. 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 $167.69 to $168.32. 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 $165.48 to $166.47. 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.

6. This transaction was executed in multiple trades during the day at prices ranging from $166.50 to $167.46. 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	08/21/2025
	** 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?

The Form 4 reports multiple sales of 7,665 Class A shares on 08/20/2025 executed under a Rule 10b5-1 trading plan.

Were the sales by Michael Cannon-Brookes pre-planned?

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

How did the reported sales affect beneficial ownership?

After the reported transactions, beneficial ownership reported for certain holdings declined to as low as 214,620 shares, held indirectly through CBC Co Pty Limited.

What prices were the shares sold at?

The filing shows weighted-average prices for grouped trades ranging from $164.9654 to $167.9667; price ranges for individual executions are disclosed in the footnotes.

Did the Form 4 disclose any derivative transactions or acquisitions?

No. Table II (derivative securities) contains no reported transactions in this filing.