Pharma BD Deal Intelligence

Gilead Sciences Inc. / Immunomedics Inc.

2020 · Acquisition/Merger · $21.0B · Complete

WRONG BY 28 POINTS
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Top 5 largest deals of the 2020s

Ranks computed across 828 graded deals (Critic + Outcome Score both present).

The coverage arc

Sep 13, 2020 BioPharma Dive Bullish

Gilead Sciences will pay 21 billion dollars to acquire Immunomedics and gain control of Trodelvy, a recently approved antibody-drug conjugate for metastatic…

Sep 13, 2020 Reuters Bullish

Gilead Sciences agreed to acquire cancer-drug developer Immunomedics for 21 billion dollars in cash, the U.S. drugmaker's biggest deal yet, to bolster its…

Oct 03, 2025 Chemical & Engineering News Bullish

Gilead's $21 billion purchase of Immunomedics boosts ADC field. The deal gives Gilead Trodelvy, a recently approved antibody-drug conjugate, and a platform for…

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Gilead Sciences acquired Immunomedics for approximately $21 billion ($88.00 per share in cash), a 108% premium, gaining Trodelvy (sacituzumab govitecan), the first FDA-approved anti-Trop-2 antibody-drug conjugate for metastatic triple-negative breast cancer, along with Immunomedics' proprietary ADC platform technology.

Key facts

Related deals — scored

DealYearValueOutcome
Gilead Sciences Inc. / Immunomedics Inc. (this deal)2020$21.0B68
Gilead Sciences Inc. / Pharmasset Inc.2011$11.2B98
Gilead Sciences Inc. / Triangle Pharmaceuticals Inc.2002$464M96
Gilead Sciences Inc. / CymaBay Therapeutics2024$4.4B76
Gilead Sciences Inc. / Nurix Therapeutics Inc.2019$2.3B69
Gilead Sciences Inc. / Kite Pharma, Inc.2017$11.9B67
Gilead Sciences Inc. / Myogen Inc.2006$2.5B62

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