Semiconductor manufacturer Analog Devices Inc. announced Monday that it is acquiring competitor Maxim Integrated Products for about $21 billion in an all-stock purchase that is currently the largest U.S.-based M&A deal of 2020 and one of the largest in the world this calendar year.

Analog was represented in the deal by Wachtell, Lipton, Rosen & Katz. The leads on the deal were corporate partners Mark Gordon and Jenna Levine. Additionally, the Wachtell team consisted of antitrust partner Joseph Larson; executive compensation and benefits attorney Andrea Wahlquist; finance partner Eric Rosof and tax partner Jodi Schwartz.