Utilize the input text as a context reference, choose the right relationship between 'Vertex Pharmaceuticals' and 'Boston' from the options.
Options: owner of, distributed by, developer, headquarters location

Vertex Pharmaceuticals Inc. VRTX, +4.02% shares were halted, but up 3.7%, after the Boston Globe reported that the biotech received marketing approval for a cystic fibrosis treatment.
headquarters location