| 2026-05-07 | Mr. Andrew Jonathan AggCFO & Executive Director | 12,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2026-03-09 | Mr. Andrew Jonathan AggCFO & Executive Director | 11,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2026-02-09 | Mr. William SerleInsider | 12,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2026-02-09 | Mr. Andrew Jonathan AggCFO & Executive Director | 12,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2026-01-30 | Ms. Zoe A. YujnovichCEO & Director | 3,29k | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2026-01-13 | Ms. Paula G. Rosput ReynoldsNon-Executive Chairman | 44,00 | 667,98 | Acquisition Under Employee Benefit Plan | 15,18 | 22,84k | 0,19% |
| 2026-01-13 | Mr. Andrew Jonathan AggCFO & Executive Director | 74,00 | 1,16k | Acquisition Under Employee Benefit Plan | 15,66 | 883,54k | 0,01% |
| 2026-01-07 | Mr. William SerleInsider | 13,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2026-01-07 | Mr. Andrew Jonathan AggCFO & Executive Director | 13,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-12-08 | Mr. William SerleInsider | 13,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-12-08 | Mr. Andrew Jonathan AggCFO & Executive Director | 13,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-10-07 | Mr. William SerleInsider | 14,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-10-07 | Mr. John Mark PettigrewInsider | 13,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-10-07 | Mr. Andrew Jonathan AggCFO & Executive Director | 14,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-09-08 | Mr. William SerleInsider | 14,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-09-08 | Mr. John Mark PettigrewInsider | 15,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-09-08 | Mr. Andrew Jonathan AggCFO & Executive Director | 14,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-09-01 | Ms. Zoe A. YujnovichCEO & Director | 914,85k | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-08-07 | Mr. William SerleInsider | 14,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-08-07 | Mr. John Mark PettigrewInsider | 14,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-08-07 | Mr. Andrew Jonathan AggCFO & Executive Director | 14,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-07-18 | Ms. Paula G. Rosput ReynoldsNon-Executive Chairman | 172,00 | 7,28k | Acquisition Under Employee Benefit Plan | 13,99 - 71,31 | 22,81k | 0,76% |
| 2025-07-17 | Mr. John Mark PettigrewInsider | 221,00 | 3,11k | Acquisition Under Employee Benefit Plan | 14,09 | 2,10M | 0,01% |
| 2025-07-17 | Mr. Andrew Jonathan AggCFO & Executive Director | 148,00 | 2,08k | Acquisition Under Employee Benefit Plan | 14,09 | 864,46k | 0,02% |
| 2025-07-07 | Mr. William SerleInsider | 14,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-07-07 | Mr. John Mark PettigrewInsider | 14,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-07-07 | Mr. Andrew Jonathan AggCFO & Executive Director | 15,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-07-01 | Mr. John Mark PettigrewInsider | 350,96k | 0,00 | Acquisition Under Employee Benefit Plan | - | 2,10M | 20,04% |
| 2025-07-01 | Mr. Andrew Jonathan AggCFO & Executive Director | 197,98k | 0,00 | Acquisition Under Employee Benefit Plan | - | 864,31k | 29,71% |
| 2025-07-01 | Mr. John Mark PettigrewInsider | -165,53k | 2,45M | Verkauf | 14,78 | 2,10M | -7,30% |
| 2025-07-01 | Mr. Andrew Jonathan AggCFO & Executive Director | -93,38k | 1,38M | Verkauf | 14,78 | 864,31k | -9,75% |
| 2025-06-23 | Mr. William SerleInsider | 125,14k | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-06-23 | Ms. Justine CampbellChief Legal officer | 140,01k | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-06-23 | Mr. Talvis P. LoveChief Information & Digital Officer | 25,48k | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-06-23 | Mr. John Mark PettigrewInsider | 409,40k | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-06-23 | Mr. Andrew Jonathan AggCFO & Executive Director | 230,98k | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-06-23 | Ms. Courtney C. GeduldigInsider | 21,26k | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-06-23 | Mr. Steve SmithGroup Chief Strategy, UK External Affairs Officer & President of National Grid Partners | 114,05k | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-06-13 | Mr. John Mark PettigrewInsider | 33,78k | 486,14k | Acquisition Under Employee Benefit Plan | 14,39 | 1,92M | 1,79% |
| 2025-06-13 | Mr. Andrew Jonathan AggCFO & Executive Director | 21,87k | 314,75k | Acquisition Under Employee Benefit Plan | 14,39 | 759,71k | 2,96% |
| 2025-06-09 | Mr. William SerleInsider | 15,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-06-09 | Mr. John Mark PettigrewInsider | 15,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |
| 2025-06-09 | Mr. Andrew Jonathan AggCFO & Executive Director | 14,00 | 0,00 | Derivative Acquisition Under Employee Benefit Plan | - | - | - |