Refer to the input text as context and select the correct relationship between 'Vertex Pharmaceuticals' and 'Boston' from the available options.
Options: developer, headquarters location, distributed by, owner of

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