NATIONAL GRID PLC

Ticker: NGG CUSIP: 636274409 Class: SPONSORED ADR NE

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q4 2025
Shares 5,083 Value ($000) $393 Avg Close — Range —
Q3 2025
Shares 11,593 Value ($000) $1 Avg Close — Range —
Q2 2025
Shares 2,057 Value ($000) $0 Avg Close — Range —
Q1 2025
Shares 19,582 Value ($000) $1 Avg Close — Range —
Q3 2024
Shares 9,153 Value ($000) $1 Avg Close — Range —
Q2 2024
Shares 177 Value ($000) $0 Avg Close — Range —
Q3 2023
Shares 13,539 Value ($000) $1 Avg Close — Range —
Q2 2023
Shares 999 Value ($000) $0 Avg Close — Range —
Q4 2022
Shares 6,982 Value ($000) $0 Avg Close — Range —
Q3 2022
Shares 22,324 Value ($000) $1,150 Avg Close — Range —
Q1 2021
Shares 20,239 Value ($000) $1,198 Avg Close — Range —
Q4 2020
Shares 7,609 Value ($000) $449 Avg Close — Range —
Q3 2020
Shares 33,507 Value ($000) $1,936 Avg Close — Range —
Q2 2020
Shares 3,127 Value ($000) $189 Avg Close — Range —
Q3 2019
Shares 15,733 Value ($000) $851 Avg Close — Range —
Q1 2019
Shares 17,487 Value ($000) $976 Avg Close — Range —
Q4 2018
Shares 4,520 Value ($000) $216 Avg Close — Range —
Q1 2018
Shares 4,642 Value ($000) $261 Avg Close — Range —
Q4 2017
Shares 5,330 Value ($000) $313 Avg Close — Range —