Question 1

What does Biogen do?

Accepted Answer

Biogen is a biotechnology company that provides therapeutics for neurological, autoimmune, and rare diseases.

Question 2

In what sectors does Biogen operate?

Accepted Answer

Biogen operates in Biotechnology, Health Care, Neuroscience, Therapeutics.

Question 3

How many companies has Biogen acquired?

Accepted Answer

Biogen has made 13 acquisitions between 2003-2026, with a total disclosed deal value of $22.4B.

Question 4

How many acquisitions does Biogen make in a year?

Accepted Answer

Over the last 5 years, Biogen has made about 1 acquisitions per year.

Question 5

What companies are owned by Biogen?

Accepted Answer

Companies acquired by Biogen include RayThera, Apellis Pharmaceuticals, Alcyone Therapeutics, HI-Bio, Reata Pharmaceuticals, Nightstar Therapeutics, Remedy Pharmaceuticals, Stromedix, and 5 more.

Question 6

What are Biogen's major acquisitions?

Accepted Answer

Biogen's largest acquisitions include Reata Pharmaceuticals ($7.3B, 2023), IDEC Pharmaceuticals ($6.4B, 2003), Apellis Pharmaceuticals ($5.6B, 2026), HI-Bio ($1.8B, 2024).

Question 7

What is Biogen's largest acquisition?

Accepted Answer

Biogen's largest disclosed acquisition is Reata Pharmaceuticals for $7.3B (2023).

Question 8

What was Biogen's first acquisition?

Accepted Answer

Biogen's first recorded acquisition was IDEC Pharmaceuticals in 2003 for $6.4B.

Question 9

What was Biogen's most recent acquisition?

Accepted Answer

Biogen's most recent acquisition is RayThera, announced June 2026.

Question 10

What is the average deal size for Biogen acquisitions?

Accepted Answer

The average disclosed deal size for Biogen acquisitions is $2.2B.

Question 11

What is the median deal size for Biogen acquisitions?

Accepted Answer

The median disclosed deal size for Biogen acquisitions is $475.0M. The median is often lower than the average because a few very large deals pull the average up.

Question 12

How much has Biogen spent on acquisitions?

Accepted Answer

Biogen has spent at least $22.4B across its disclosed acquisitions (of 13 total deals; some prices are undisclosed).

Question 13

Which sector has Biogen spent the most on?

Accepted Answer

Biogen has committed the most disclosed capital to Biotechnology companies — about $22.3B across its deals in that sector.

Question 14

What sectors does Biogen usually acquire in?

Accepted Answer

Biogen most frequently acquires companies in Biotechnology, Health Care, Pharmaceutical.

Question 15

In which sector has Biogen made the most acquisitions?

Accepted Answer

Biogen has made the most acquisitions in the Biotechnology sector.

Question 16

In which year did Biogen make the most acquisitions?

Accepted Answer

Biogen made the most acquisitions in 2026, with 2 deals.

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