SUNNYVALE — Apple has bought a big building in Sunnyvale, the latest in a series of deals in recent years that indicate the tech titan continues to widen its footholds in Silicon Valley.

The iPhone maker paid $44 million for the building, which is located at 123 Uranium Drive, according to documents filed on Jan. 14 with the Santa Clara County Recorder’s Office.

The property purchase was an all-cash deal, the county files show.

The seller was an affiliate linked to the Public Retirement System of Nevada and Invesco Real Estate, which is an investment firm with a global reach.

Invesco and the retirement system appear to have harvested a hefty profit with the property purchase. The Invesco-led group paid roughly $15 million in 2013 when it bought the building as part of a portfolio purchase.

The building totals 105,000 square feet and occupies about 5.8 acres, according to commercial property listing services.

Apple has been busy with an array of property transactions lately despite the uncertainties about the effects of the coronavirus on how quickly companies might return to work.

Cupertino-based Apple has signed leases, bought properties and launched development plans in a push to expand the company’s holdings in Santa Clara County.