Paychex Achieves Record Stock Price as Acquisition Progresses Paychex stock hit an all-time high of $154.99, reflecting investor confidence. This milestone coincides with the company securing a key antitrust approval for its $4.1 billion Paycor acquisition. The deal, expected to close in 2025, will expand Paychex’s HCM and payroll solutions, further solidifying its market position.456