NATIONAL GRID PLC

Ticker: NGG CUSIP: 636274409 Class: SPONSORED ADR NE

ZEVIN ASSET MANAGEMENT LLC's Holding History (CIK: 0001394096)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 63,774 Value ($000) $4,933 Avg Close — Range —

Q3 2025

Shares 62,585 Value ($000) $5 Avg Close — Range —

Q2 2025

Shares 71,955 Value ($000) $5 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	63,774	$4,933	—	—
Q3 2025	62,585	$5	—	—
Q2 2025	71,955	$5	—	—