Claire Keast-Butler

Cooley advised the underwriters of Septerna, a clinical-stage biotechnology company pioneering a new era of G protein-coupled receptor (GPCR) oral small molecule drug discovery, on its upsized $331.2 million initial public offering.

Cooley advised the underwriters of Upstream Bio, a clinical-stage biotech developing a monoclonal antibody to target respiratory disorders, on its upsized $293 million initial public offering.

Cooley advised Bicycle Therapeutics, a clinical-stage biopharmaceutical company developing a novel class of medicines referred to as Bicycle molecules, on its $555.5 million private placement offering. Partners Laura Berezin, Jaime Chase and Claire Keast-Butler led the Cooley team.

Cooley advised Autolus – a clinical-stage biopharmaceutical company developing next-generation programmed T-cell therapies – on its strategic collaboration with BioNTech, an immunotherapy company pioneering novel therapies for cancer and other serious diseases, to advance both companies’ autologous CAR-T programs toward commercialization, as well as a $350 million underwritten offering.

Cooley advised Amryt Pharma, a Dublin, Ireland-based commercial-stage biopharmaceutical company, on its definitive agreement to be acquired by Chiesi Farmaceutici, a Parma, Italy-based research-focused biopharmaceuticals and healthcare group, in a $1.48 billion cash and contingent value right (CVR) transaction. Partners Bill Sorabella, Claire Keast-Butler and Bill Roegge led the joint US and UK Cooley team advising Amryt.