Insiders / Masterson William F III

Masterson William F III

CIK 2098902personinsider
Companies
1
First seen
Jan 5, 2026
Last activity
Mar 17, 2026
CompanyRoleShares heldPeak heldTradesLatest
Cabot Corp ยท CBTExecutiveโ€”5242โ€”

All securities held

1 position ยท latest reported per filing
CompanySecuritySharesAs of
Cabot CorpPhantom Stock UnitsDerivative524Mar 13, 2026
InsidersInstitutions
This person's insider trades (Form 4), across every company.
DateActionCompanyValueShares ฮ”Position afterImpact
Mar 13, 2026GrantCBT
Cabot Corp
Phantom Stock Units
โ€”+3
+0.65%
524
<0.01% of shares
low
Dec 31, 2025GrantCBT
Cabot Corp
Phantom Stock Units
โ€”+229
+78.33%
520
<0.01% of shares
low