CABOT CORP (CBT) SEC Filings

CABOT CORP (CBT) is named as the issuer in a Form 144 filing relating to planned sales of its common stock by Sean D. Keohane. The notice covers up to 134,895 shares of common stock, to be sold following a stock option exercise on August 28, 2026, with sales reported on the NYSE.

CABOT CORP (CBT) reported that President and CEO Sean D. Keohane exercised employee stock options and sold the resulting shares. On 2026-08-24 he exercised options for 2,779 shares of common stock at an exercise price of $50.00 per share, and the same day sold 2,779 shares of common stock at $85.50 per share. Following the option exercise, he held 134,895 option shares tied to that grant, and separately reported 14,263.7411 shares of common stock held indirectly through the trustee for the company’s 401(k) plan. A footnote states the original option covered 137,674 shares and vested over three years from 2018 to 2020.

CABOT CORP (CBT) is the issuer for a planned insider sale reported under Rule 144 for the account of Sean D. Keohane. The notice covers 2,779 shares of common stock, expected to be sold through Fidelity Brokerage Services LLC on 08/24/2026 on the NYSE following a stock option exercise paid in cash.

The filing also reports that during the prior three months, Sean D. Keohane sold 91,923 shares of CABOT CORP common stock on 08/07/2026 for an aggregate sale price of $7,942,634.39.

Cabot Corporation (CBT) completed the issuance and sale of $350 million aggregate principal amount of 4.950% senior notes due 2029. These Notes were issued under an automatically effective shelf registration statement on Form S-3ASR and a Base Indenture dated June 22, 2022, as supplemented by a Second Supplemental Indenture dated August 21, 2026.

Cabot intends to use the net proceeds to redeem its $250 million aggregate principal amount of 3.40% Senior Notes due September 2026, with the remaining proceeds allocated to working capital and other general corporate purposes, which may include repayment of commercial paper and any amounts outstanding under its multicurrency revolving credit facility.

Cabot Corporation is issuing $350,000,000 aggregate principal amount of 4.950% Senior Notes due August 15, 2029. The notes are senior unsecured obligations ranking equally with Cabot’s other senior debt and effectively subordinated to $15 million of parent secured debt and $187 million of subsidiary debt as of June 30, 2026.

The notes are priced at 99.993% of principal with an underwriting discount of 0.350%, providing estimated net proceeds of $347.7 million. Cabot plans to repay its $250 million 3.40% Senior Notes due 2026 at maturity and use the remainder for working capital and general corporate purposes, including possible repayment of commercial paper and borrowings under its multicurrency revolving credit facility. The notes carry semi-annual interest starting February 15, 2027, are redeemable at a make-whole premium before July 15, 2029 and at par thereafter, and include a Change of Control Triggering Event put at 101% if ratings fall below investment grade. Cabot discloses total debt of $1,273 million pre-offering and $1,373 million post-offering, along with risks tied to subordination, leverage, refinancing obligations and interest rate exposure.

Cabot Corporation entered into an Underwriting Agreement with Citigroup, J.P. Morgan, PNC and U.S. Bancorp for the issuance and sale of $350 million aggregate principal amount of 4.950% notes due 2029. The notes will be issued under an indenture with U.S. Bank Trust Company, National Association as trustee and are registered under an automatically effective shelf registration statement on Form S-3ASR filed on December 15, 2023. Cabot expects to complete the issuance and sale of the notes on or about August 21, 2026, subject to customary closing conditions. Estimated offering expenses other than underwriting discounts and commissions total $1,080,000, including a $48,332 SEC registration fee and $586,250 of rating agency fees.

American Century ETF Trust and affiliated entities reported beneficial ownership of Cabot Corporation common stock. American Century ETF Trust holds 2,640,178 shares, representing 5.1% of the outstanding common stock, with sole voting and sole dispositive power over these shares.

American Century Investment Management, Inc., American Century Companies, Inc., and the Stowers Institute for Medical Research each report beneficial ownership of 2,768,176 Cabot shares, or 5.4% of the class, also with sole voting and sole dispositive power and no shared power. Various investment companies and institutional accounts advised by American Century Investment Management have rights to dividends and sale proceeds, but no single client advised by it owns more than 5% of the Cabot common stock.

Cabot Corporation common stock is the subject of an updated ownership report by Wellington Management Group LLP and related entities. The Wellington entities report beneficial ownership of 2,416,471 shares of Cabot common stock, representing 4.68% of the class. They report shared voting power over 1,870,169 shares and shared dispositive power over 2,416,471 shares, with no sole voting or dispositive power. The shares are owned of record by clients of Wellington-affiliated investment advisers, who have rights to dividends and sale proceeds, and no single client is reported to hold more than five percent of the class.

Cabot Corporation is issuing a new series of senior unsecured notes under its automatic shelf registration. Key economic terms such as coupon, size and maturity will be set later, but the notes will rank equally with Cabot’s existing senior unsecured debt, including its 4.00% 2029 and 5.00% 2032 notes, and will be effectively subordinated to secured debt and all liabilities of subsidiaries.

Cabot plans to use the net proceeds primarily to repay its $250 million 3.40% senior notes due 2026 at maturity, with any remainder applied to working capital and other general corporate purposes, potentially including repayment of commercial paper and borrowings under its multicurrency revolving credit facility. As of June 30 2026, Cabot had $1,273 million of total debt and its subsidiaries had about $187 million of external debt.

The notes feature a make-whole optional redemption before a par call date, and a 101% repurchase right upon a defined Change of Control Triggering Event tied to both a change of control and ratings falling below investment grade. The indenture permits substantial additional indebtedness and offers limited protective covenants, and there is currently no established trading market for the notes. Cabot discloses interest-rate risk on variable borrowings and extensive risk factors, including leverage, structural subordination and potential difficulty funding any change-of-control repurchase.