NATIONAL GRID PLC

Ticker: NGG CUSIP: 636274409 Class: SPONSORED ADR NE

BALDWIN BROTHERS LLC/MA's Holding History (CIK: 0001021258)

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

Q2 2020

Shares 1,235 Value ($000) $75 Avg Close — Range —

Q1 2020

Shares 1,235 Value ($000) $72 Avg Close — Range —

Q4 2019

Shares 1,035 Value ($000) $65 Avg Close — Range —

Q3 2019

Shares 1,035 Value ($000) $56 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2020	1,235	$75	—	—
Q1 2020	1,235	$72	—	—
Q4 2019	1,035	$65	—	—
Q3 2019	1,035	$56	—	—