Announcement of a change in shareholding according to Chapter 9, Section 10 of the Finnish Securities Market Act Musti Group plc Stock Exchange Release 15 December 2023 at 9.30am Musti Group plc (the “Company”) has on 14 December 2023 received a notification in accordance with the Chapter 9, Section 5 of the Finnish Securities Markets Act from The Capital Group Companies, Inc (”CGC”), according to which CGC's holding of the shares and votes of the Company decreased below the threshold of 5 percent on 13 December 2023. CGC holds a total of 861,808 shares corresponding to an ownership of 2,57 percent of the Company's shares and votes. Total positions of CGC according to the notification: % of % of shares and Total Total number of shares shares voting rights of and voting rights of and through financial both issuer voting instruments (total in % rights of B) (A + (total B) of A) Resulting 2.57 N/A 2.57 33,535,453 situation on the date on which threshold was crossed or reached Position of 6.12 N/A 6.12 33,535,453 previous notification (if applicable) Notified details of the resulting situation on the date on which the threshold was crossed or reached: A: Shares and voting rights Class/type Number % of shares and voting rights of shares of shares and voting rights ISIN code Direct Indirect Direct Indirect (if (SMA (SMA 9:6 and (SMA 9:5) (SMA 9:6 and 9:7) possible) 9:5) 9:7) FI4000410758 861,808 N/A 2.57 N/A SUBTOTAL A 861,808 2.57 N/A N/A B: Financial instruments according to the Finnish Securities Market Act 9:6a Type of Expiration Exercise/ Physical or Number of shares % of shares financial date Conversion cash and voting rights and voting instrument period settlement rights N/A SUBTOTAL B Additional information Martin Svedholm Director, Treasury and Investor Relations tel. +358 50 579 0324, martin.svedholm@mustigroup.com Musti in brief Musti makes the life of pets and their owners easier, safer and more fun. We are the leading Nordic pet care company, and we operate an omnichannel business model to cater for the needs of pets and their owners across Finland, Sweden and Norway. We offer a wide, curated assortment of pet products. We also provide pet care services such as grooming, training and veterinary services in selected locations. Musti Group's net sales were EUR 426 million in the financial year 2023. At the end of the financial year 2023, the company had 1,643 employees, 1.5 million loyal customers and 342 stores.