NATIONAL GRID PLC

Ticker: NGG CUSIP: 636274409 Class: SPONSORED ADR NE

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2025
Shares 1,620 Value ($000) $125 Avg Close — Range —
Q3 2025
Shares 36 Value ($000) $3 Avg Close — Range —
Q2 2023
Shares 3,554 Value ($000) $239 Avg Close — Range —
Q1 2023
Shares 6,563 Value ($000) $446 Avg Close — Range —
Q4 2022
Shares 240 Value ($000) $14 Avg Close — Range —
Q3 2022
Shares 336 Value ($000) $17 Avg Close — Range —
Q2 2022
Shares 436 Value ($000) $28 Avg Close — Range —
Q1 2022
Shares 4,892 Value ($000) $376 Avg Close — Range —
Q3 2021
Shares 1,197 Value ($000) $71 Avg Close — Range —
Q2 2021
Shares 987 Value ($000) $63 Avg Close — Range —
Q1 2019
Shares 13,101 Value ($000) $732 Avg Close — Range —
Q4 2018
Shares 6,284 Value ($000) $302 Avg Close — Range —
Q3 2018
Shares 1,137 Value ($000) $59 Avg Close — Range —
Q1 2018
Shares 9,350 Value ($000) $528 Avg Close — Range —
Q4 2017
Shares 10,621 Value ($000) $625 Avg Close — Range —