Takeover

Acquirers

GlaxoSmithKline plc

Also filed as GlaxoSmithKline; GLAXOSMITHKLINE PLC

Targets
3
Filings
4
Median premium
39%
First filing
Dec 14, 2018
Latest filing
Jan 20, 2026

Targets

CompanyScore before dealScore nowFilingsLatest
RAPT Therapeutics, Inc.——1Jan 20, 2026
Sierra Oncology, Inc.——2May 16, 2022
TESARO, Inc.——1Dec 14, 2018

Deal filings

FiledCompanyFormPricePremium
Jan 20, 2026RAPT Therapeutics, Inc.8-K——
May 16, 2022Sierra Oncology, Inc.DEFM14A$55.0039%
May 2, 2022Sierra Oncology, Inc.PREM14A$55.0039%
Dec 14, 2018TESARO, Inc.SC TO-T——