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FACTORY MUTUAL INSURANCE CO

Insurance

Position in NGG — National Grid PLC

CIK 887818 WALTHAM, MA

Position in NGG

as of Jun 30, 2026 · filed Jul 21, 2026
Position Value
$3,367,671
-$757,932 QoQ
Shares Held
40,638
-16.7% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#118
of 612 holders
Holding Since
Sep 2025
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in NGG Over Time

Shares Held

Position Value (USD)

Position in Utilities - Regulated Electric

Utilities · as of Jun 30, 2026

FACTORY MUTUAL INSURANCE CO holds $29,932,337 across 3 Utilities - Regulated Electric names. NGG ranks #3 (11.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 NGG
National Grid PLC
This page
40,638 $3,367,671

All Filings in NGG

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4 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $3,367,671 40,638
2026-03-31 $4,125,603 48,766
2025-12-31 $4,715,023 60,957
2025-09-30 $4,429,745 60,957