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Stocks/CBT/SEC Filings/424B2 Aug 14, 2026

CBT 424B2: Secondary offering

Filed with the SEC on Aug 14, 2026 · accession 0001193125-26-352360

CBT filed a 424B2 (prospectus (offering)) with the SEC on Aug 14, 2026. Cabot Corporation is offering $350 million aggregate principal amount of 4.950% Senior Notes due 2029 in an underwritten public offering. The stock moved +1.9% by the first close after the filing.

Summary of the filing

Cabot Corporation is offering $350 million aggregate principal amount of 4.950% Senior Notes due 2029 in an underwritten public offering. The notes are senior unsecured obligations and will mature on August 15, 2029.

For details, click here →How to read a 424B2 →

Key details

Aggregate principal amount of notes offered$350.0M
Underwriting discount$1.2M
Proceeds to issuer before expenses$348.8M
IssuerCabot Corporation
Joint book-running managerCitigroup
Joint book-running managerJ.P. Morgan
Joint book-running managerPNC Capital Markets LLC
Joint book-running managerUS Bancorp
Joint book-running managerBofA Securities
Joint book-running managerBBVA
Joint book-running managerING
Co-managerHSBC
Co-managerLoop Capital Markets
Co-managerMorgan Stanley

How CBT stock reacted

Close before

$86.27

Aug 13, 2026

First close after

+1.87%

$87.88

5 trading days

-1.55%

$84.93

Since filing

-17.64%

$71.05

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Frequently asked questions

What did CBT file with the SEC on Aug 14, 2026?

CBT filed a 424B2 (Secondary offering). Cabot Corporation is offering $350 million aggregate principal amount of 4.950% Senior Notes due 2029 in an underwritten public offering. The notes are senior unsecured obligations and will mature on August 15, 2029.

What does a secondary offering mean for CBT stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B2?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B2 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did CBT stock react to this filing?

CBT closed at $86.27 before the filing and $87.88 on Aug 14, 2026 (+1.87%). Five trading days later: $84.93 (-1.55%).

Other CBT SEC filings

  • 8-K · SEC filingNov 2, 2026
  • 8-K · Cfo changeSep 15, 2026
  • 8-K · SEC filingAug 21, 2026
  • SCHEDULE 13G · SEC filingAug 14, 2026
  • 8-K · SEC filingAug 14, 2026
  • SCHEDULE 13G/A · SEC filingAug 13, 2026
  • 424B2 · Secondary offeringAug 12, 2026
  • 10-Q · SEC filingAug 4, 2026
  • 8-K · SEC filingAug 3, 2026
  • 8-K · Ceo changeJul 30, 2026

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Source: SEC EDGAR filing 0001193125-26-352360. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.