National Grid plc - Depositary Receipt (Common Stock)
US ˙ NYSE ˙ US6362744095

SecurityNGG / National Grid plc - Depositary Receipt (Common Stock)
InstitutionCAPROCK Group, Inc.
Latest Disclosed Ownership16,163 shares
Latest Disclosed Value $ 1,367,438
CAPROCK Group, Inc. reports 0.39% increase in ownership of NGG / National Grid plc - Depositary Receipt (Common Stock)

On May 11, 2026 - CAPROCK Group, Inc. filed a 13F-HR form disclosing ownership of 16,163 shares of National Grid plc - Depositary Receipt (Common Stock) (US:NGG) valued at $1,367,390 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 16,101 shares of National Grid plc - Depositary Receipt (Common Stock). This represents a change in shares of 0.39% during the quarter. The current value of the position is $1,296,757 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 16,163 62 0.39 1,367 9.10 0.0332
2026-01-28 2025-12-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 16,101 2,226 16.04 1,254 27.99 0.0265
2025-11-06 2025-09-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 13,875 5,124 58.55 979 70.56 0.0241
2025-05-15 2025-03-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 8,751 2,349 36.69 574 48.32 0.0175
2025-01-23 2024-12-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 6,402 -135 -2.07 388 -14.95 0.0127
2024-11-07 2024-09-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 6,537 6,537 455 0.0166
2024-08-06 2024-06-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 0 -6,660 -100.00 0 -100.00
2024-04-29 2024-03-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 6,660 789 13.44 454 12.10 0.0260
2024-01-18 2023-12-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 5,871 786 15.46 405 31.49 0.0259
2023-10-18 2023-09-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 5,085 -240 -4.51 308 -16.76 0.0233
2023-08-10 2023-06-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 5,325 160 3.10 371 5.41 0.0272
2023-04-26 2023-03-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 5,165 1,873 56.90 351 74.63 0.0272
2023-01-23 2022-12-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 3,292 3,292 202 0.0188
2022-11-07 2022-09-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 0 -3,479 -100.00 0 -100.00
2022-07-26 2022-06-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 3,479 46 1.34 225 -14.77 0.0221
2022-04-12 2022-03-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 3,433 241 7.55 264 14.29 0.0248
2022-01-18 2021-12-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 3,192 3,192 231 0.0190
2020-10-29 2020-09-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 0 -9,004 -100.00 0 -100.00
2020-08-05 2020-06-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 9,004 1,443 19.08 547 24.04 0.0822
2020-04-28 2020-03-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 7,561 7,561 441 0.0835
2018-04-23 2018-03-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 0 -7,718 -100.00 0 -100.00
2018-01-17 2017-12-31 13F NATIONAL GRID SPONSORED ADR NE 636274409 7,718 -3,543 -31.46 444 -37.11 0.0864
2017-10-23 2017-09-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 11,261 174 1.57 706 1.15 0.1471
2017-07-27 2017-06-30 13F NATIONAL GRID SPONSORED ADR NE 636274409 11,087 -886 -7.40 698 -8.16 0.1551
2017-04-21 2017-03-31 13F NATIONAL GRID SPON ADR NEW 636274300 11,973 8,496 244.35 760 274.38 0.1785
2017-01-24 2016-12-31 13F NATIONAL GRID SPON ADR NEW 636274300 3,477 -3,409 -49.51 203 -58.57 0.0511
2016-11-15 2016-09-30 13F NATIONAL GRID SPON ADR NEW 636274300 6,886 87 1.28 490 -2.97 0.1112
2016-08-25 2016-06-30 13F NATIONAL GRID SPON ADR NEW 636274300 6,799 424 6.65 505 10.99 0.1231
2016-05-11 2016-03-31 13F NATIONAL GRID SPON ADR NEW 636274300 6,375 6,375 455 0.1079
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.