Seagate Technology (STX) said Monday it has completed its purchase of Intevac (IVAC), paying $4 per share in cash for the thin-film processing systems supplier.

Closing of the deal follows Intevac investors tendering nearly 24 million of their shares, representing roughly 88% of the company's outstanding shares, by the March 28 deadline, Seagate said.

Intevac became a wholly owned subsidiary of Seagate and its shares ceased trading on the Nasdaq Global Select Market prior to Monday's opening bell and were delisted, Seagate said.