Cabot Corporation Issues $350M 4.95% Senior Notes, Plans Redemption

What Happened
Cabot Corporation announced on August 21, 2026 that it completed an offering of $350 million aggregate principal amount of 4.950% senior notes due 2029. The notes were issued under the company’s shelf registration (Form S-3ASR, Reg. No. 333-276078) and pursuant to the Base Indenture dated June 22, 2022, as supplemented by a Second Supplemental Indenture dated August 21, 2026 between Cabot and U.S. Bank Trust Company, National Association (trustee). Cabot filed the Second Supplemental Indenture and a legal opinion from Ropes & Gray LLP related to the validity of the notes as exhibits to the 8‑K.

Key Details

• Offering closed August 21, 2026: $350.0 million principal, 4.950% interest, maturity in 2029.
• Intended use of proceeds: redeem $250.0 million of Cabot’s 3.40% Senior Notes due September 2026; remaining proceeds for working capital and other general corporate purposes (including discretionary repayment of commercial paper or amounts under its revolving credit facility).
• Notes issued under existing indenture framework (Base Indenture dated June 22, 2022) and documented via a Second Supplemental Indenture; trustee is U.S. Bank Trust Company, N.A.
• Legal opinion on note validity furnished by Ropes & Gray LLP and filed with the 8‑K.

Why It Matters
This transaction refinances near-term debt and alters Cabot’s upcoming maturity profile by replacing $250 million of higher-short-term refinancing risk with a longer-dated 2029 obligation. For investors, the move may reduce near-term cash outflows tied to the September 2026 notes and change interest expense dynamics (new notes carry a 4.95% coupon). The filing provides the formal legal and contractual documents for the issuance, giving transparency into the company’s capital structure actions.