Eli Lilly Acquires Kelonia Therapeutics for Up to $7 Billion

Eli Lilly to Acquire Merida Biosciences

August 31, 2026

Biotechnology

Eli Lilly and Company has agreed to acquire Merida Biosciences for up to $2.875 billion in cash, including an upfront payment and contingent milestone payments. The acquisition is intended to expand Lilly’s precision immunology platform for selectively targeting disease-causing antibodies across autoimmune and allergic conditions, including Graves’ disease and thyroid eye disease.

Eli Lilly to Acquire Vaccine Company for Up to $1.55 Billion

May 27, 2026

Biotechnology

Vaccine Company, Inc. announced it has entered into a definitive agreement to be acquired by Eli Lilly and Company in a deal valued at up to $1.55 billion, including upfront and milestone-based payments. The acquisition is intended to accelerate development of Vaccine Company’s next-generation in vivo nanoparticle (IVN) vaccine platform, led by a Phase 1-ready Epstein-Barr virus (EBV) vaccine candidate targeting infectious mononucleosis and longer-term EBV-linked diseases.

Gilead Sciences Acquires Arcellx for $7.8 Billion to Expand CAR T Cell Therapy Portfolio

February 21, 2026

Healthcare Services

Gilead Sciences entered into a definitive agreement to acquire Arcellx for $115 per share in cash plus a $5 per share contingent value right, implying an equity value of about $7.8 billion. The deal was completed on April 27, 2026, with Arcellx becoming a wholly owned subsidiary and full control of anito-cel and Arcellx’s D-Domain CAR technology platform.

Eli Lilly Acquires Orna Therapeutics in Up to $2.4 Billion Deal

February 9, 2026

Biotechnology

Eli Lilly and Company has signed a definitive agreement to acquire Orna Therapeutics, valuing the deal at up to $2.4 billion. The acquisition is intended to expand Lilly’s genetic medicine and in vivo cell engineering capabilities, particularly for advancing in vivo CAR-T therapies using Orna’s circular RNA and lipid nanoparticle (LNP) platform.

Eli Lilly Acquires Sigilon Therapeutics

June 29, 2023

Biotechnology

Eli Lilly agreed to acquire Sigilon Therapeutics in a cash tender offer valuing the biotech at roughly $34.6 million up front plus contingent value rights that could increase total consideration to about $309.6 million. The acquisition brings Sigilon's encapsulated cell therapy platform (including SIG-002 for type 1 diabetes) into Lilly's diabetes and cell-therapy R&D efforts to accelerate development and potential commercialization.

Ionis Pharmaceuticals to Acquire Remaining Stake in Akcea Therapeutics

August 31, 2020

Biotechnology

Ionis Pharmaceuticals agreed to acquire the approximately 24% of Akcea Therapeutics it does not already own for $18.15 per share in cash, implying a fully diluted transaction value of about $500 million. The deal will be executed via a tender offer followed by a second-step merger, and Ionis expects to complete the transaction in Q4 2020 to consolidate Akcea's pipeline, commercial products and cash while realizing cost synergies.