The biotechnology company has closed the funding round it started in December 2013.

Juno Therapeutics, which is developing novel immunotherapies for cancer, has closed its series A with $176m, having opened it with $120m this past December – already then one of the largest series A rounds ever.

The round was closed through expansions from founding investors, as well as an investment from Bezos Expeditions, the personal investment company of Amazon CEO Jeff Bezos, and Venrock, the venture capital firm originally established by the affluent Rockefeller family.

The initial funding of $120m came…