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National Grid shares owned by Factory Mutual Insurance Company

Quarter-by-quarter ownership of National Grid (NGG) shares owned by Factory Mutual Insurance Company from 13F filings

Historical chart of Factory Mutual Insurance Company investment in National Grid

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All positions including National Grid held by Factory Mutual Insurance Company consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in National Grid by Factory Mutual Insurance Company

Quarter filed Position value Share count Share price at filing
2025-09-30 $4.4M 61k 72.67