How many acquisitions has Pfizer made so far?

Pfizer has completed 42 acquisitions so far, with an average acquisition amount of $9.25B.

Which countries does Pfizer usually acquire in?

Pfizer has made acquisitions in 6 countries with the most activity in United States and United Kingdom.

In which year did Pfizer make the most acquisitions?

Pfizer was most active in 2008, with 4 acquisitions completed in that year.

List of 42 Acquisitions by Pfizer (Apr 2026)

Q: Which is Pfizer's latest acquisition?

Pfizer's most recent acquisition is Metsera, a Biopharmaceutical company focusing on medicines for obesity and metabolic diseases, acquired in September 2025 for $10B.

Most viewed in 2019

Pfizer has completed a total of 42 acquisitions. Peak acquisition years include 2008 and 2007, both with 4 acquisitions, and 2022 with 3. Acquisition activity has taken place in 6 countries, notably in United States (35), United Kingdom (3), and South Korea (1). Acquisitions span 22 sectors, with the most activity in Oncology (7), Infectious Diseases (5), and Diversified Pharmaceuticals (5). Over the last five years (2020–2025), the average number of acquisitions per year has been 1.8. There have been 0 acquisitions completed in the current calendar year so far. The most recent acquisition was of Metsera, a biopharmaceutical company focusing on medicines for obesity and metabolic diseases. Founded in 2022 and based in New York City, this acquisition was completed in September 2025 for $10B.

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

Number of Total Acquisitions

Year	# Acquisitions
2025	1
2023	2
2022	3
2021	3
2019	2
2016	3
2015	2
2014	2
2012	3
2011	2
2010	3
2008	4
2007	4
2006	2
2005	3
2004	1
2003	1
2002	1

View all Acquisitions by Pfizer

Recent acquisitions by Pfizer

Pfizer's most recent acquisition - Metsera is a Biopharmaceutical company focusing on medicines for obesity and metabolic diseases, founded in 2022 and located in New York City. Pfizer acquired it in September 2025 for a price of $10B.

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

Acquired on	Acquired Company	Acquisition Price	Facilitators	Stake Acquired	Acquisition Multiple
Sep 22, 2025	Metsera	$10B	Citi, Wachtell, Lipton, Rosen & Katz ... Read more	67	849
Mar 13, 2023	Seegene Technologies	$43B	-	67	655
Mar 13, 2023	Seattle Genetics	$43B	Guggenheim Partners, Centerview Partners ... and 3 more	58	634
Aug 08, 2022	GBT	$5.4B	Wachtell, Lipton, Rosen & Katz, Cravath ... and 5 more	88	744
May 10, 2022	Biohaven Pharmaceutical	$11.6B	J P Morgan, Centerview Partners ... and 2 more	68	565