Press Release
March 12, 2026

Goodwin Guides CRISPR Therapeutics on Pricing $550 Million Upsized Convertible Senior Notes Offering

The Life Sciences and Equity-Linked Capital Markets teams guided CRISPR Therapeutics AG (the “Company”) on the pricing of $550 million aggregate principal amount of its convertible senior notes due 2031 (the “notes”) in a private offering (the “offering”) to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”). The Company also granted the initial purchasers of the notes an option to purchase up to an additional $50 million aggregate principal amount of the notes. The sale of the notes is expected to close on March 16, 2026, subject to the satisfaction of customary closing conditions. The offering was upsized from the previously announced offering of $350 million aggregate principal amount of notes.

Founded over a decade ago, CRISPR Therapeutics is a leading biopharmaceutical company focused on developing transformative gene-based medicines for serious human diseases. The Company has evolved from a pioneering research-stage organization into an industry leader, marking a historic milestone with the approval of CASGEVY® (exagamglogene autotemcel [exa-cel]), the world’s first CRISPR-based therapy, approved for eligible patients with sickle cell disease and transfusion-dependent beta thalassemia. CRISPR Therapeutics is advancing a broad and diversified pipeline across hemoglobinopathies, cardiovascular, autoimmune, oncology, regenerative medicine and rare diseases. The Company continues to expand its leadership in gene editing through the development of SyNTase™ editing, a novel and proprietary gene-editing platform designed to enable precise, efficient, and scalable gene correction. To accelerate and expand its impact, CRISPR Therapeutics has established strategic collaborations with leading biopharmaceutical partners, including Vertex Pharmaceuticals. CRISPR Therapeutics AG is headquartered in Zug, Switzerland, with its wholly owned US subsidiary, CRISPR Therapeutics, Inc., and R&D operations based in Boston, Massachusetts and San Francisco, California.

The Goodwin team was led by Jim Barri, Kim De Glossop, Robert Puopolo, Stephanie Richards, Cindy Navarro, Lauren Avery, James Flynn, Sarah Bock, Daniel Karelitz, Jackie Klosek, Matthew Wetzel, Steven Tjoe, and Ettore Santucci.

For more information on the deal, please read the launch press release and pricing press release.