BOSTON—General Electric officially announced Wednesday afternoon that it will be shifting its headquarters operations from Fairfield, CT to the Seaport District here. To help offset relocation costs, GE says it will sell its offices at 30 Rockefeller Plaza in New York City, along with its Connecticut headquarters.

The company, as well as Boston Mayor Martin Walsh and Massachusetts Gov. Charlie Baker confirmed the headquarters relocation. The package of incentives to land General Electric totals more than $151 million, including $120 million in grants and incentives from the Commonwealth of Massachusetts and $25 million in property tax relief from the City of Boston.

To finance the move to that as yet unspecified address in the Seaport, GE states that it will sell its offices in Fairfield, CT and its offices at the iconic 30 Rockefeller Plaza in New York City. The office holdings at 30 Rock involve two floors the company maintains for executives. A company spokesperson tells Globest.com that GE sold additional floors it owned to Comcast in 2013 when it sold NBC Universal to the firm.