Ligand Pharmaceuticals agreed to acquire Xoma Royalty Corporation for $39 per share in an all-cash deal valued at about $739 million, the two companies announced April 27.
The royalty aggregator model, which both companies use, involves taking stakes in drugs that are still in clinical development and earning royalty payments on sales if those treatments ultimately win approval. The deal would expand Ligand's royalty portfolio to more than 200 assets and add seven commercial products, the company said.