Renee Martel Donlan, Executive Vice President, General Counsel and Chief Compliance Officer of MKS Inc., filed a Form 4 on August 18, 2026, reporting the acquisition of restricted stock units on August 17, 2026.

Key Highlights

  • RSU grant: Donlan Renee Martel acquired 954.044 restricted stock units (RSUs) of MKS Inc. on August 17, 2026.
  • Vesting schedule: The RSUs vest in three equal annual installments commencing on August 17, 2027.
  • Post-transaction holdings: Following the transaction, the reporting person beneficially owns 4,780.571 RSUs directly.
  • Security type: Each RSU represents the contingent right to receive one share of MKS Inc. common stock.
  • Role: Donlan Renee Martel is identified in the filing as EVP, GC & CCO of MKS Inc.

RSU Award Details for MKS Inc. General Counsel and CCO

According to the Form 4 filed with the SEC on August 18, 2026, Donlan Renee Martel, serving as Executive Vice President, General Counsel and Chief Compliance Officer of MKS Inc. (NASDAQ:MKSI), acquired 954.044 restricted stock units on August 17, 2026. The transaction was coded as an acquisition (A) and is reported in Table II, covering derivative securities.

The filing states that each RSU represents the contingent right to receive one share of MKS Inc. common stock. The vesting terms, as described in the filing's explanation of responses, specify that the RSUs "vest in three equal annual installments commencing on August 17, 2027, provided that if, in any vesting year, August 17th is not a business day, such vesting shall occur on the next business day." No exercise price is listed for the derivative security.

Following this reported transaction, the filing shows Donlan Renee Martel beneficially owns 4,780.571 RSUs directly. The Form 4 was signed by James Kruger as attorney-in-fact and filed on August 18, 2026. The reporting person's address is listed as c/o MKS Inc., 2 Tech Drive, Andover, Massachusetts 01810.

What Was Disclosed

The filing discloses a grant of 954.044 RSUs to MKS Inc.'s EVP, General Counsel and CCO on August 17, 2026, vesting in three equal annual installments beginning August 17, 2027, resulting in total direct beneficial ownership of 4,780.571 RSUs.