Executive record
William Masterson
Public governance roles and source-backed Claims for this individual.
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Alpha ID: alpha:person:william-masterson-cbtVersion: public-0As of: 2026-10-05
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ResponsibilitiesInspect board appointments and committee mandates.ExperienceReview career history and qualifications in context.Economic interestsExamine disclosed incentives and ownership.Key Claims
- Executive titleExecutive title: Senior Vice President and President of the Reinforcement Materials SegmentCBT 10-K executive officers +1 sources
- AI and ML experienceAI and ML experience: not identified in the cited filingCBT 10-K executive officers
- AI expertiseAI expertise reported in filingsCBT executive roster source
- AI governance relevanceAI governance relevance reported from role and filingsCBT executive roster source
Biography
William Masterson joined Cabot in 2011 and was elected to his current position effective November 21, 2025, having previously served as VP of Business Operations for Performance Chemicals and VP and Regional Business Director for the Americas Region. Prior to Cabot, he was global market development manager at W.R. Grace from 2007 to 2011.
Alpha editorial summary written from the cited sources below. It does not change any Claim on this record.
Board service
Board service coverage
No published Claims are available in this section of the public record. This does not establish that the information is undisclosed or that no relevant facts exist.
Review evidence coverageExecutive career
- 2025 to end not publishedExecutive title: Senior Vice President and President of the Reinforcement Materials Segment · Organization not publishedCBT 10-K executive officers
Claims
Compensation
Compensation coverage
No published Claims are available in this section of the public record. This does not establish that the information is undisclosed or that no relevant facts exist.
Review evidence coverageConflicts and accountability
Alpha has not published independence, related-party, proceedings or disciplinary Claims for this record. This is not a finding that none exist.
Only disclosed facts and public registers appear here. Executive records carry no credit, personal litigation, background screening or underwriting views. None observed is not a clearance.
Evidence, history and coverage
Additional published Claims
Published evidence records
2 evidence records, matching Agent View. Records may refer to different locations or observations in the same document. This count is not a count of independent corroborating sources.
CBT 10-K executive officers
sec filing · Source published: Nov 24, 2025 · Retrieved: May 15, 2026
Supports 5 claims
- AI and ML experience: AI and ML experience: not identified in the cited filing · Claim reviewed: May 15, 2026
- Cybersecurity experience: Cybersecurity experience: not identified in the cited filing · Claim reviewed: May 15, 2026
- Executive company: Executive at CABOT CORP · Claim reviewed: May 15, 2026
- Executive title: Executive title: Senior Vice President and President of the Reinforcement Materials Segment · Claim reviewed: May 15, 2026
- Technology background: Technology background: not identified in the cited filing · Claim reviewed: May 15, 2026
CBT executive roster source
sec filing · Source published: Date unavailable · Retrieved: May 3, 2026
Supports 5 claims
- AI expertise: AI expertise reported in filings · Claim reviewed: May 3, 2026
- AI governance relevance: AI governance relevance reported from role and filings · Claim reviewed: May 3, 2026
- Executive company: Executive at CABOT CORP · Claim reviewed: May 15, 2026
- Executive function: Other Executive (SVP) · Claim reviewed: May 3, 2026
- Executive title: Executive title: Senior Vice President and President of the Reinforcement Materials Segment · Claim reviewed: May 15, 2026
No published record changes are available in this projection.
Identity
unclaimed
Evidence
corroborated
Evaluation
Unknown
Monitoring
Unknown
Authority
Unknown
Freshness
Observed 2026-10-05
- Biography
- published
- Board service
- not observed
- Executive career
- published
- Education and qualifications
- not observed
- Compensation
- not observed
- Conflicts and accountability
- not observed
- Background screening
- out of scope