Form4insider filings, from the source

Company · CIK 0000016040 · SIC 2890 — Miscellaneous Chemical Products · NYSE

CABOT CORP · CBT

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $19.6M · 3net −$19.6M
$10k$10k$1M$1M$100M$100MbuyssalesSep 2024Jan 2025May 2025Sep 2025Jan 2026May 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 28, 2026 SForm 4 →Aug 31, 7:00 pm EDTSean D KeohanePresident and CEO, Director134,895$85.00$11,466,075404,134−25.0%
Aug 28, 2026 MForm 4 →Aug 31, 7:00 pm EDTSean D KeohanePresident and CEO, Director134,895$50.00$6,744,750539,029—
Aug 24, 2026 SForm 4 →Aug 26, 2:42 pm EDTSean D KeohanePresident and CEO, Director2,779$85.50$237,605288,873−0.95%
Aug 24, 2026 MForm 4 →Aug 26, 2:42 pm EDTSean D KeohanePresident and CEO, Director2,779$50.00$138,950291,652—
Aug 7, 2026 SForm 4 →Aug 11, 6:00 pm EDTSean D KeohanePresident and CEO, Director91,923$86.41$7,942,634404,134−18.5%
Aug 7, 2026 MForm 4 →Aug 11, 6:00 pm EDTSean D KeohanePresident and CEO, Director91,923$62.24$5,721,288496,057—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 11, 2026 AForm 4 →Sep 14, 5:00 pm EDTErica McLaughlinExecutive Vice President, CFO61$79.68$4,86710,362—
Sep 11, 2026 AForm 4 →Sep 14, 5:00 pm EDTWilliam F Masterson IIISenior Vice President3$79.68$249530—
Sep 11, 2026 AForm 4 →Sep 14, 5:00 pm EDTRaffiq NathooDirector11$79.68$8871,889—
Sep 11, 2026 AForm 4 →Sep 14, 5:00 pm EDTLisa M DumontVP, Controller & CAO4$79.68$351747—
Sep 11, 2026 AForm 4 →Sep 14, 5:00 pm EDTDouglas G DelgrossoDirector31$79.68$2,4405,196—
Sep 11, 2026 AForm 4 →Sep 14, 5:00 pm EDTSean D KeohanePresident and CEO, Director284$79.68$22,60048,115—
Sep 11, 2026 AForm 4 →Sep 14, 5:00 pm EDTKaren A KalitaSVP and General Counsel31$79.68$2,5095,341—
Aug 28, 2026 MForm 4 →Aug 31, 7:00 pm EDTSean D KeohanePresident and CEO, Director134,895——0—
Aug 24, 2026 MForm 4 →Aug 26, 2:42 pm EDTSean D KeohanePresident and CEO, Director2,779——134,895—
Aug 7, 2026 MForm 4 →Aug 11, 6:00 pm EDTSean D KeohanePresident and CEO, Director91,923——0—
Jun 30, 2026 AForm 4 →Jul 2, 8:57 am EDTRaffiq NathooDirector262$90.82$23,7501,878—
Jun 30, 2026 AForm 4 →Jul 2, 8:56 am EDTSean D KeohanePresident and CEO, Director84$90.82$7,60047,831—
Jun 12, 2026 AForm 4 →Jun 16, 4:30 pm EDTLisa M DumontVP, Controller & CAO4$87.65$349743—
Jun 12, 2026 AForm 4 →Jun 16, 4:30 pm EDTDouglas G DelgrossoDirector28$87.65$2,4275,165—
Jun 12, 2026 AForm 4 →Jun 16, 4:30 pm EDTKaren A KalitaSVP and General Counsel28$87.65$2,4955,310—
Jun 12, 2026 AForm 4 →Jun 16, 4:30 pm EDTRaffiq NathooDirector9$87.65$7601,616—
Jun 12, 2026 AForm 4 →Jun 16, 4:30 pm EDTErica McLaughlinExecutive Vice President, CFO55$87.65$4,84110,301—
Jun 12, 2026 AForm 4 →Jun 16, 4:30 pm EDTSean D KeohanePresident and CEO, Director256$87.65$22,44047,747—
Jun 12, 2026 AForm 4 →Jun 16, 4:30 pm EDTWilliam F Masterson IIISenior Vice President3$87.65$247527—