Company: TEAM
Filing Date: 2025-10-15
Form Type: DEF 14A
Source: 0001650372-25-000058
Chunk: 2

Company: Atlassian Corp
Filing Date: 2025-10-15
Form: DEF 14A
Chunk 2
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 15 minutes before the start time. There will not be a physical location for the Annual Meeting, and you will not be able to attend the Annual Meeting in person.

The list of stockholders will be available for inspection by stockholders during the Annual Meeting at www.virtualshareholdermeeting.com/TEAM2025 .

Holders of record of shares of our Class A Common Stock and/or Class B Common Stock at the close of business on October 8, 2025 and their proxies are entitled to receive notice of, and to vote at, the Annual Meeting and any and all adjournments, continuations, or postponements thereof. These proxy materials are first being made available to stockholders on October 15, 2025.

Your vote is important . Please vote as promptly as possible.

Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting of Stockholders to Be Held on December 2, 2025: Both the Proxy Statement and Atlassian’s Annual Report on Form 10-K for the fiscal year ended June 30, 2025, are available electronically at https://investors.atlassian.com/ and www.proxyvote.com .

By order of the Board of Directors,

#### Stan Shepard
General Counsel

San Francisco, California

October 15, 2025

| 2025 Proxy Statement |

#### 4Notice of 2025 Annual Meeting of Stockholders

#### How to Vote
| Online at the Annual Meeting                                                                                                |     | Online Before the Annual Meeting                                                         |     | Phone                                                                                                                                 |     | Mail                                                                                                                   |
| Attend the Annual Meeting virtually atwww.virtualshareholdermeeting.com/TEAM2025and follow the instructions on the website. |     | Visitwww.proxyvote.comand follow the instructions on your proxy card or Internet Notice. |     | Call1-800-690-6903and follow the instructions provided in the recorded message (if you received paper copies of the proxy materials). |     | Return your completed and signed proxy card in the postage-prepaid envelope accompanying the voting instruction forms. |

| Note for Street Name Holders:If you are a stockholder who holds shares through a brokerage firm, bank, trust, or other similar organization (that is, in “street name”), please refer to the instructions from the broker or organization holding your shares in an Internet Notice or voting instruction form that was provided to you. If you do not provide voting instructions, we expect that your nominee will only be permitted to vote on Proposal 2. |

| 2025 Proxy Statement