Masterson William F III

person

Unified public record assembled from the source systems listed below. Amounts describe distinct reported activity and are not added into a single influence total.

Political giving

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Political receipts

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Lobbying income

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Lobbying expense

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Federal awards

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Relationships

Connected records

Relationship	Connected entity	Amount / weight	Period
insider of	Cabot Corp	15,762.829	Dec 3, 2025 – Jun 12, 2026

Source coverage

sec insider: 0002098902

Masterson William F III — Influence Profile | Poliscope