Nastech Pharmaceutical is expanding into new space adjacent to its Bothell headquarters, according to a regulatory filing today.

The move into 27,322-square-feet of office and laboratory space brings the company's total footprint to 78,322, an increase of more than 53 percent. The company signed a 10-year lease and will pay monthly rent starting at $37,458.84 to Ditty Properties. Nastech also has first dibs on other space in the building at 3830 Monte Villa Parkway.

Nastech's stock gained 25 cents, 1.7 percent, to close at $14.75 today, which is up slightly from where it's been since Merck bowed out of a partnership to develop an obesity drug last week.