CBT · Insider Trading
Cabot Corporation
Every open-market purchase and sale reported by CBT officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-01 | Karen A Kalita | SVP and General Counsel | A | +44 deriv. | — |
| 2026-10-01 | William F Masterson III | Senior Vice President | A | +24 deriv. | — |
| 2026-10-01 | Sean D Keohane | President and CEO | A | +346 deriv. | — |
| 2026-10-01 | Raffiq Nathoo | Director | A | +360 deriv. | — |
| 2026-10-01 | Erica McLaughlin | Executive Vice President, CFO | A | +93 deriv. | — |
| 2026-09-14 | Erica McLaughlin | Executive Vice President, CFO | A | +61 deriv. | — |
| 2026-09-14 | Sean D Keohane | President and CEO | A | +283 deriv. | — |
| 2026-09-14 | Douglas G Delgrosso | Director | A | +30 deriv. | — |
| 2026-09-14 | William F Masterson III | Senior Vice President | A | +3 deriv. | — |
| 2026-09-14 | Raffiq Nathoo | Director | A | +11 deriv. | — |
| 2026-09-14 | Karen A Kalita | SVP and General Counsel | A | +31 deriv. | — |
| 2026-09-14 | Lisa M Dumont | VP, Controller & CAO | A | +4 deriv. | — |
| 2026-08-31 | Sean D Keohane | President and CEO | MIXED | — | −$4.72M |
| 2026-08-26 | Sean D Keohane | President and CEO | MIXED | — | −$98.65K |
| 2026-08-11 | Sean D Keohane | President and CEO | MIXED | — | −$2.22M |
| 2026-07-02 | Raffiq Nathoo | Director | A | +261 deriv. | — |
| 2026-07-02 | Sean D Keohane | President and CEO | A | +83 deriv. | — |
| 2026-06-16 | Raffiq Nathoo | Director | A | +8 deriv. | — |
| 2026-06-16 | Sean D Keohane | President and CEO | A | +256 deriv. | — |
| 2026-06-16 | Douglas G Delgrosso | Director | A | +27 deriv. | — |
| 2026-06-16 | Lisa M Dumont | VP, Controller & CAO | A | +3 deriv. | — |
| 2026-06-16 | Erica McLaughlin | Executive Vice President, CFO | A | +55 deriv. | — |
| 2026-06-16 | Karen A Kalita | SVP and General Counsel | A | +28 deriv. | — |
| 2026-06-16 | William F Masterson III | Senior Vice President | A | +2 deriv. | — |
| 2026-04-01 | Raffiq Nathoo | Director | A | +315 deriv. | — |
| 2026-03-17 | William F Masterson III | Senior Vice President | A | +3 deriv. | — |
| 2026-03-17 | Karen A Kalita | SVP and General Counsel | A | +33 deriv. | — |
| 2026-03-17 | Raffiq Nathoo | Director | A | +8 deriv. | — |
| 2026-03-17 | Sean D Keohane | President and CEO | A | +305 deriv. | — |
| 2026-03-17 | Douglas G Delgrosso | Director | A | +33 deriv. | — |
| 2026-03-17 | Erica McLaughlin | Executive Vice President, CFO | A | +65 deriv. | — |
| 2026-03-17 | Lisa M Dumont | VP, Controller & CAO | A | +4 deriv. | — |
| 2026-01-12 | Raffiq Nathoo | Director | MIXED | −3,025 deriv. | — |
| 2026-01-12 | William C. Kirby | Director | A | +486 | — |
| 2026-01-12 | Cynthia A Arnold | Director | A | +2,298 | — |
| 2026-01-12 | Frank Anders Wilson | Director | A | +2,298 | — |
| 2026-01-12 | Christine Y Yan | Director | A | +2,298 | — |
| 2026-01-12 | Michael M Morrow | Director | A | +2,298 | — |
| 2026-01-12 | Michelle Elizabeth Williams | Director | A | +2,298 | — |
| 2026-01-12 | Thierry FJ Vanlancker | Director | A | +2,298 | — |
| 2026-01-12 | Douglas G Delgrosso | Director | A | +2,298 | — |
| 2026-01-12 | Raffiq Nathoo | Director | A | +2,298 | — |
| 2026-01-12 | Cabot Juan Enriquez | Director | A | +486 | — |
| 2026-01-05 | Sean D Keohane | President and CEO | A | +2,562 deriv. | — |
| 2026-01-05 | William F Masterson III | Senior Vice President | A | +228 deriv. | — |
| 2026-01-05 | Erica McLaughlin | Executive Vice President, CFO | A | +1,034 deriv. | — |
| 2026-01-05 | Karen A Kalita | SVP and General Counsel | A | +922 deriv. | — |
| 2026-01-05 | Lisa M Dumont | VP, Controller & CAO | A | +182 deriv. | — |
| 2026-01-05 | Raffiq Nathoo | Director | A | +358 deriv. | — |
| 2026-01-05 | Cabot Juan Enriquez | Director | A | +414 deriv. | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Sean D Keohane | President and CEO | 418,397 | $31.64M |
| Jeff Ji Zhu | Executive Vice President | 85,337 | $6.45M |
| Erica McLaughlin | Executive Vice President, CFO | 73,099 | $5.53M |
| Hobart Kalkstein | Executive Vice President | 64,096 | $4.85M |
| Karen A Kalita | SVP and General Counsel | 45,819 | $3.46M |
| Cabot Juan Enriquez | Director | 43,626 | $3.30M |
| William C. Kirby | Director | 27,688 | $2.09M |
| Michael M Morrow | Director | 22,302 | $1.69M |
| Matthais L. Wolfgruber | Director | 22,099 | $1.67M |
| Cynthia A Arnold | Director | 19,620 | $1.48M |
| Frank Anders Wilson | Director | 18,552 | $1.40M |
| Christine Y Yan | Director | 17,171 | $1.30M |
| Douglas G Delgrosso | Director | 15,079 | $1.14M |
| Lisa M Dumont | VP, Controller & CAO | 13,513 | $1.02M |
| Matthew Forster Wood | Senior Vice President | 13,496 | $1.02M |
| Raffiq Nathoo | Director | 9,266 | $700.60K |
| William F Masterson III | Senior Vice President | 7,210 | $545.15K |
| Michelle Elizabeth Williams | Director | 6,776 | $512.33K |
| Thierry FJ Vanlancker | Director | 4,902 | $370.64K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the CBT quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.