CMC Magnetics (TPE:2323) acquired 1.4 million shares of WIN Semiconductors (TPE:3105) for NT$321.9 million, according to a Monday Taiwan Exchange filing.
The shares were purchased at an average price of NT$236.8 per share between Jan. 27 and Feb. 2, the optical data storage media manufacturer said.
Following the transaction, CMC Magnetics now holds 1.039 million WIN Semiconductors shares.
The acquisition was made for portfolio management purposes, it said.