The concept of a parent company with operating subsidiaries is becoming increasing common in biotech. The first to do it, Daphne Zohar, who co-founded PureTech back in 2005, tells Scrip how the company has made that model work.

Public Company Edition: US initial public offerings are reawakening from a brief nap as Prometheus and Longboard prepare IPOs for launch. Also, Halozyme sells $700m worth of notes and Karuna’s $250m stock sale leads recent follow-on offerings.

Editas regains rights to ocular programs first partnered with Allergan in 2017. Newly public F-star will focus on bispecific antibodies for cancer, TriSalus acquires oncology candidate from Dynavax.

PureTech said it finished 2019 with healthy finances and a promising pipeline which analysts said should offer positive catalysts for the UK group’s stock in 2020.