Basware Corporation, stock exchange release 18 March 2022 at 3:15 p.m. EET Basware Corporation - Managers' Transactions ____________________________________________ Person subject to the notification requirement Name: Mikko Lampi Position: Other senior manager Issuer: Basware Oyj LEI: 743700ULKFAAEA2N3D13 Notification type: INITIAL NOTIFICATION Reference number: 11751/4/4 ____________________________________________ Transaction date: 2022-03-18 Venue: NASDAQ HELSINKI LTD (XHEL) Instrument type: SHARE ISIN: FI0009008403 Nature of the transaction: ACQUISITION Transaction details (1): Volume: 223 Unit price: 21.5 EUR (2): Volume: 177 Unit price: 21.5 EUR (3): Volume: 147 Unit price: 21.5 EUR (4): Volume: 153 Unit price: 21.5 EUR (5): Volume: 300 Unit price: 21.5 EUR Aggregated transactions (5): Volume: 1000 Volume weighted average price: 21.5 EUR For more information, please contact: Katariina Kataja, Investor Relations Manager, Basware Corporation Tel. +358 40 527 1427, katariina.kataja@basware.com Distribution: Nasdaq Helsinki investors.basware.com/en About Basware: Basware offers the largest open business network in the world and is the global leader in providing networked purchase-to-pay solutions and e-invoicing services. Our technology empowers organizations with 100% spend visibility by enabling the capture of all financial data across procurement, finance, accounts payable and accounts receivable functions. Basware's solutions play an important role in transitioning to a lower-carbon economy by enabling the digitalization and automation of Purchase-to-Pay enterprise processes that rely on paper. Basware is a global company doing business in more than 100 countries and is traded on the Helsinki exchange (BAS1V: HE). Find out more at https://investors.basware.com/en.