The bank bought the shares between December 17 and 21, it said in a statement filed with the Bucharest Stock Exchange on Friday.
The price varied between 1.1740 lei and 1.1985 lei per share.
The repurchased shares are equivalent to a stake of 0.043% in the bank.
Blue chip Banca Transilvania said in April it planned to repurchase up to 15 million shares at a price of up to 2.0 lei each in an 18-month buyback programme.
(1 euro = 4.4383 Romanian lei)