Announcement Regarding Possible Offer

The Board of MariaDB plc (NYSE: MRDB) (“MariaDB” or the “Company”) confirms that on February 15, 2024, it received an unsolicited non-binding indicative proposal from K1 Investment Management LLC (“K1”) to acquire the entire issued and to be issued share capital of the Company (the “Possible Offer”) through K5 Private Investors, L.P. (“K5”), a fund controlled by K1. K1 publicly announced such offer on February 16, 2024. The Board of MariaDB is reviewing and taking advice regarding the Possible Offer. The Possible Offer may or may not lead to an offer being made for the entire share capital of the Company. There can be no certainty that any offer will be made.

In accordance with Rule 2.6 of the Irish Takeover Rules, K1 is required, no later than 5:00 pm (New York time) on March 29, 2024, being the 42^nd day following the K1 announcement, to either (i) announce a firm intention to make an offer for the Company in accordance with Rule 2.7 of the Irish Takeover Rules; or (ii) announce that it does not intend to make an offer for the Company, in which case the announcement will be treated as a statement to which Rule 2.8 of the Irish Takeover Rules applies. This deadline will only be extended with the consent of the Irish Takeover Panel in accordance with Rule 2.6(c) of the Takeover Rules, at the request of the Company.

IMPORTANT NOTICES

ABOUT MARIADB

MariaDB is a new generation database company whose products are used by companies big and small, reaching more than a billion users through Linux distributions and have been downloaded over one billion times. Deployed in minutes and maintained with ease, leveraging cloud automation, MariaDB database products are engineered to support any workload, any cloud and any scale – all while saving up to 90% of proprietary database costs. Trusted by organizations such as Bandwidth, DigiCert, InfoArmor, Oppenheimer and Samsung, MariaDB’s software is the backbone of critical services that people rely on every day. For more information, please visit mariadb.com.

RESPONSIBILITY STATEMENT

The directors of the Company accept responsibility for the information contained in this announcement. To the best of the knowledge and belief of the directors (who have taken all reasonable care to ensure that such is the case), the information contained in this announcement is in accordance with the facts and does not omit anything likely to affect the import of such information.