How many acquisitions has Biogen made so far?

Biogen has completed 13 acquisitions so far, with an average acquisition amount of $1.68B.

Which countries does Biogen usually acquire in?

Biogen has made acquisitions in 4 countries with the most activity in United States and United Kingdom.

Which is Biogen's latest acquisition?

Biogen's most recent acquisition is Apellis Pharmaceuticals, a Developer of therapeutics for the treatment of rare diseases, acquired in March 2026 for $5.6B.

Which sectors does Biogen target for acquisitions?

Most of Biogen's acquisitions are in Immunology (4) and Neurology (3).

In which year did Biogen make the most acquisitions?

Biogen was most active in 2006, with 2 acquisitions completed in that year.

List of 13 Acquisitions by Biogen (May 2026)

Biogen has completed a total of 13 acquisitions. Peak acquisition years include 2006 with 2 acquisitions, and 2026 and 2025 each with 1 acquisition. The company's acquisition activity spans 4 countries, including United States, United Kingdom, and China, and involves 12 sectors. The highest sector activity is in Immunology (4 acquisitions), Neurology (3 acquisitions), and Rare Diseases (3 acquisitions). Over the last five years (2020-2025), the average number of acquisitions per year is 0.6, with 1 acquisition completed in the current calendar year so far. The most recent acquisition was Apellis Pharmaceuticals, a developer of therapeutics for rare diseases, founded in 2008 and based in Crestwood. This acquisition closed in March 2026 for $5.6B.

Here's the year on year acquisition history of Biogen:

Number of Total Acquisitions

Year	# Acquisitions
2026	1
2025	1
2024	1
2023	1
2019	1
2017	1
2015	1
2014	1
2013	1
2007	1
2006	2
2003	1

View all Acquisitions by Biogen

Recent acquisitions by Biogen

Biogen's most recent acquisition - Apellis Pharmaceuticals is a Developer of therapeutics for the treatment of rare diseases, founded in 2008 and located in Crestwood. Biogen acquired it in March 2026 for a price of $*****.

Here is the list of all acquisitions by Biogen sorted by the latest acquisition date:

Acquired on	Acquired Company	Acquisition Price	Facilitators	Stake Acquired	Acquisition Multiple
Mar 31, 2026	Apellis Pharmaceuticals	aunx	fkgm	37	265
Sep 18, 2025	Alcyone	sfvu	vmdn	72	968
May 22, 2024	HIBio	ornx	ment	95	343
Jul 28, 2023	Reata Pharma	icfa	jwqs	80	820
Mar 04, 2019	Nightstar	zvuw	hmwi	78	658