EXCHANGE NOTICE, MARCH 29, 2021 SHARES BITTIUM OYJ: DIRECTED ISSUE A total of 9,098 shares will be traded as old shares as of March 30, 2021. Identifiers of Bittium Oyj's share: Trading code: BITTI ISIN code: FI0009007264 Orderbook id: 24251 Number of shares: 35,702,264 Nasdaq Helsinki Oy, Surveillance, survo@nasdaq.com, +358 9 6166 7260