Serial Acquisitions in Tech

We examine serial acquisitions in the technology sector from 2010 to 2023. Defining serial acquisitions based on a granular S&P industry taxonomy, we find that they account for 24–37% of majority-control tech M&A, with over half completed by public firms. Followon targets in a series are generally larger and older than the initial acquisition, and among public acquirers, starting a series is associated with higher market value and greater innovation value, but not with significant changes in market competitiveness. Among deals with valid transaction values, over half of serial deals exceed the reporting threshold of the U.S. Hart–Scott–Rodino (HSR) Act. However, in below-threshold acquisitions, acquirers primarily target their core business category. Accounting for the cumulative value of a series would, in most cases, keep the timing of HSR review unchanged or modestly accelerate it, but when it does accelerate it, review could occur several deals or years earlier, potentially yielding important benefits in markets with long acquisition sequences. Finally, while Google/Alphabet, Amazon, Facebook/Meta, Apple and Microsoft (GAFAM) stand out from the rest of the sample for more frequent serial acquisitions, some other large acquirers display similar patterns.