NATIONAL GRID PLC

Ticker: NGG CUSIP: 636274409 Class: SPONSORED ADR NE

DAVIS R M INC's Holding History (CIK: 0000891287)

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

Q1 2023

Shares 14,032 Value ($000) $1 Avg Close — Range —

Q4 2022

Shares 3,646 Value ($000) $0 Avg Close — Range —

Q2 2022

Shares 3,646 Value ($000) $236 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2023	14,032	$1	—	—
Q4 2022	3,646	$0	—	—
Q2 2022	3,646	$236	—	—