Notice of Proposed Sale · 144
Cabot Corporation
CBTNYSEEQUITYCurrent
Notice of Proposed Sale
Structured filing — 144
primary_doc.xml
Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.
Proposed-sale notice
- Issuer
- CABOT CORP
- Issuer CIK
- 0000016040
- SEC file number
- 001-05667
- Phone
- 6173450100
- Person for whose account securities are to be sold
- Keohane Sean D
- Relationships to issuer
- Officer · Director
- Street
- TWO SEAPORT LANE SUITE 1400
- City
- BOSTON
- State / country code
- MA
- Postal code
- 02210
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Common | 134,895 | 11,466,075.00 | 51,631,007 | 08/28/2026 | NYSE | Fidelity Brokerage Services LLC |
Broker / market maker — proposed row 1, entry 1
- Name
- Fidelity Brokerage Services LLC
- Street
- 900 Salem Street
- City
- Smithfield
- State / country code
- RI
- Postal code
- 02917
Acquisition of securities to be sold
| Security | Acquired | Nature of acquisition | Acquired from | Amount acquired | Gift transaction | Payment date | Nature of payment |
|---|---|---|---|---|---|---|---|
| Common | 08/28/2026 | Stock Option Exercise | Issuer | 134,895 | N | 08/28/2026 | Cash |
Sales reported in the preceding three months
| Seller | Security | Sale date | Amount sold | Gross proceeds |
|---|---|---|---|---|
| Sean D. Keohane | Common | 08/07/2026 | 91,923 | 7,942,634.39 |
| Sean D. Keohane | Common | 08/24/2026 | 2,779 | 237,604.50 |
Seller — prior-sale row 1, entry 1
- Name
- Sean D. Keohane
- Street
- Two Seaport Lane
- Street (continued)
- Suite 1400
- City
- Boston
- State / country code
- MA
- Postal code
- 02210-2019
Seller — prior-sale row 2, entry 1
- Name
- Sean D. Keohane
- Street
- Two Seaport Lane
- Street (continued)
- Suite 1400
- City
- Boston
- State / country code
- MA
- Postal code
- 02210-2019
Prior-sale reporting
- Nothing to report for the preceding three months
- N
Notice signature
- Notice date
- 08/28/2026
- Signed
- /s/ Louis Kurnick, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Sean D. Keohane
Company context
Cabot Corporation (NYSE: CBT) is a global specialty chemicals and performance materials company headquartered in Boston, Massachusetts. The company is a leading provider of reinforcing carbons, specialty carbons, battery materials, engineered elastomer composites, inkjet colorants, masterbatches and conductive compounds, fumed metal oxides and aerogel. For more information on Cabot, please visit the company’s website at cabotcorp.com.