NATIONAL GRID PLC

Ticker: NGG CUSIP: 636274409 Class: SPONSORED ADR NE

Standard Investments LLC's Holding History (CIK: 0001539436)

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

Q4 2025
Shares 2,480,000 Value ($000) $191,828 Avg Close — Range —
Q3 2025
Shares 2,480,000 Value ($000) $180,222 Avg Close — Range —
Q2 2025
Shares 2,480,000 Value ($000) $184,537 Avg Close — Range —
Q1 2025
Shares 2,480,000 Value ($000) $162,713 Avg Close — Range —
Q4 2024
Shares 1,770,000 Value ($000) $105,173 Avg Close — Range —