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About CABOT CORP (CBT)
The SEC lists CABOT CORP under CIK 0000016040, in miscellaneous chemical products. We track it alongside the rest of the Materials sector.
CBT Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 3 | 229,597 | $19.65M |
| Grant or award | 12 | 1,295 | |
| Option exercise | 6 | 459,194 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
CBT insider transactions (Form 4)
36120 Form 4 filings on record, the earliest from Oct 2, 2024, newest first. Filing history page 1 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| William F. Masterson III - Officer | Grant or award | Phantom Stock Units | 24.15 | $76.91 | $2K | |
 Erica McLaughlin - Officer | Grant or award | Phantom Stock Units | 93.54 | $76.91 | $7K | |
 Karen A. Kalita - Officer | Grant or award | Phantom Stock Units | 44.88 | $76.91 | $3K | |
| Sean D. Keohane - Officer | Grant or award | Phantom Stock Units | 346.26 | $76.91 | $27K | |
 Raffiq Nathoo - Director | Grant or award | Phantom Stock Units | 360.81 | $76.91 | $28K | |
| Erica McLaughlin - Officer | Grant or award | Phantom Stock Units | 61.08 | $79.68 | $5K | |
| William F. Masterson III - Officer | Grant or award | Phantom Stock Units | 3.12 | $79.68 | $249 | |
| Raffiq Nathoo - Director | Grant or award | Phantom Stock Units | 11.14 | $79.68 | $887 | |
| Lisa M. Dumont - Officer | Grant or award | Phantom Stock Units | 4.4 | $79.68 | $351 | |
 Douglas G. Delgrosso - Director | Grant or award | Phantom Stock Units | 30.63 | $79.68 | $2K | |
| Sean D. Keohane - Officer | Grant or award | Phantom Stock Units | 283.64 | $79.68 | $23K | |
| Karen A. Kalita - Officer | Grant or award | Phantom Stock Units | 31.49 | $79.68 | $3K | |
| Sean D. Keohane - Officer | Option exercise | Common Stock | 134,895 | $50.00 | $6.74M | |
| Sean D. Keohane - Officer | Open-market sale | Common Stock | 134,895 | $85.00 | $11.47M | |
| Sean D. Keohane - Officer | Option exercise | Employee Stock Option (Right to Buy) | 134,895 | $0.00 | - | |
| Sean D. Keohane - Officer | Option exercise | Common Stock | 2,779 | $50.00 | $139K | |
| Sean D. Keohane - Officer | Open-market sale | Common Stock | 2,779 | $85.50 | $238K | |
| Sean D. Keohane - Officer | Option exercise | Employee Stock Option (Right to Buy) | 2,779 | $0.00 | - | |
| Sean D. Keohane - Officer | Option exercise | Common Stock | 91,923 | $62.24 | $5.72M | |
| Sean D. Keohane - Officer | Open-market sale | Common Stock | 91,923 | $86.41 footnote F1 | $7.94M | |
| Sean D. Keohane - Officer | Option exercise | Employee Stock Option (Right to Buy) | 91,923 | $0.00 | - | |
| ||||||
| Raffiq Nathoo | Grant or award | Phantom Stock Units | 261.51 | $90.82 | $24K | |
| Sean D. Keohane - Officer | Grant or award | Phantom Stock Units | 83.68 | $90.82 | $8K | |
| Lisa M. Dumont - Officer | Grant or award | Phantom Stock Units | 3.98 | $87.65 | $349 | |
| Douglas G. Delgrosso | Grant or award | Phantom Stock Units | 27.69 | $87.65 | $2K | |
| Karen A. Kalita - Officer | Grant or award | Phantom Stock Units | 28.47 | $87.65 | $2K | |
| Raffiq Nathoo | Grant or award | Phantom Stock Units | 8.67 | $87.65 | $760 | |
| Erica McLaughlin - Officer | Grant or award | Phantom Stock Units | 55.23 | $87.65 | $5K | |
| Sean D. Keohane - Officer | Grant or award | Phantom Stock Units | 256.01 | $87.65 | $22K | |
| William F. Masterson III - Officer | Grant or award | Phantom Stock Units | 2.82 | $87.65 | $247 | |
| Raffiq Nathoo | Grant or award | Phantom Stock Units | 315.36 | $75.31 | $24K | |
| Lisa M. Dumont - Officer | Grant or award | Phantom Stock Units | 4.75 | $69.49 | $330 | |
| Erica McLaughlin - Officer | Grant or award | Phantom Stock Units | 65.92 | $69.49 | $5K | |
| Douglas G. Delgrosso | Grant or award | Phantom Stock Units | 33.05 | $69.49 | $2K | |
| Sean D. Keohane - Officer | Grant or award | Phantom Stock Units | 305.56 | $69.49 | $21K | |
| Raffiq Nathoo | Grant or award | Phantom Stock Units | 8.32 | $69.49 | $578 | |
Recent CBT Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Keohane Sean D | Officer, Director | 134,895 | $11.47M | View on EDGAR | |
| Keohane Sean D | Officer, Director | 2,779 |
CBT insider trading FAQ
What is the latest insider trade for CBT?
CABOT CORP (CBT) had 15 insider filings in the last 90 days, with the most recent on 2026-10-01. The full record for CBT runs to 120 Form 4 filings, the earliest from 2024-10-02. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying CBT stock?
No insider purchases of CBT were filed in the last 90 days.
How many insiders are selling CBT stock?
3 insider sales of CBT were filed in the last 90 days, totaling $19.65M.
Where can I see CBT SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects CBT Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Materials companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - William F. Masterson III view on EDGAR
- - Erica McLaughlin view on EDGAR
- - Karen A. Kalita view on EDGAR
- - Sean D. Keohane view on EDGAR
- - Raffiq Nathoo view on EDGAR
- - Erica McLaughlin view on EDGAR
- - William F. Masterson III view on EDGAR
- - Raffiq Nathoo view on EDGAR
- - Lisa M. Dumont view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Materials
- Where CBT's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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