NATIONAL GRID PLC

Ticker: NGG CUSIP: 636274409 Class: SPONSORED ADR NE

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q3 2019
Shares 39,587 Value ($000) $2,143 Avg Close — Range —
Q2 2019
Shares 39,587 Value ($000) $2,105 Avg Close — Range —
Q1 2019
Shares 39,587 Value ($000) $2,211 Avg Close — Range —
Q4 2018
Shares 39,587 Value ($000) $1,899 Avg Close — Range —
Q3 2018
Shares 39,587 Value ($000) $2,053 Avg Close — Range —
Q2 2018
Shares 39,587 Value ($000) $2,211 Avg Close — Range —
Q1 2018
Shares 39,587 Value ($000) $2,234 Avg Close — Range —
Q4 2017
Shares 39,587 Value ($000) $2,328 Avg Close — Range —
Q3 2017
Shares 39,587 Value ($000) $2,483 Avg Close — Range —
Q2 2017
Shares 151,587 Value ($000) $9,523 Avg Close — Range —