Cabot Corporation filed an 8-K with the U.S. Securities and Exchange Commission on August 14, 2026, disclosing that it entered into an Underwriting Agreement on August 12, 2026, for the issuance and sale of $350 million aggregate principal amount of 4.950% notes due 2029.

Key Highlights

  • Offering size: $350 million aggregate principal amount of notes
  • Coupon rate: 4.950% notes due 2029
  • Agreement date: Underwriting Agreement signed August 12, 2026
  • Expected closing: On or about August 21, 2026, subject to customary closing conditions
  • Lead underwriters: Citigroup Global Markets Inc., J.P. Morgan Securities LLC, PNC Capital Markets LLC, and U.S. Bancorp Investments, Inc., as representatives of the several underwriters
  • Registration: Offering registered under shelf registration statement No. 333-276078, filed December 15, 2023

Cabot Corporation's $350 Million Senior Notes Offering and Underwriting Terms

According to the filing, Cabot Corporation (NYSE:CBT) entered into the Underwriting Agreement on August 12, 2026, with Citigroup Global Markets Inc., J.P. Morgan Securities LLC, PNC Capital Markets LLC, and U.S. Bancorp Investments, Inc. serving as representatives of the several underwriters named in Schedule 1 to that agreement. The transaction covers the issuance and sale of $350 million aggregate principal amount of 4.950% notes due 2029.

The filing states that the notes will be issued pursuant to a base indenture, as supplemented by a second supplemental indenture, to be executed by and between Cabot and U.S. Bank Trust Company, National Association, as trustee. The offering was registered under an automatically effective shelf registration statement on Form S-3ASR, Registration Statement No. 333-276078, which was filed with the SEC on December 15, 2023. Cabot is expected to complete the issuance and sale on or about August 21, 2026, subject to the satisfaction of customary closing conditions, according to the filing.

The company filed the Underwriting Agreement as Exhibit 1.1 and information relating to Part II, Item 14 "Other Expenses of Issuance and Distribution" of the Registration Statement as Exhibit 99.1. The 8-K was signed by Erica McLaughlin, Executive Vice President and Chief Financial Officer of Cabot Corporation, on August 14, 2026.

What Was Disclosed

Cabot Corporation disclosed the execution of an Underwriting Agreement for a $350 million offering of 4.950% notes due 2029, identified the underwriters and trustee, referenced the applicable shelf registration statement, and noted an expected closing date of on or about August 21, 2026.