National Grid plc
GB ˙ LSE ˙ GB00BDR05C01
SecurityGB:NG. / National Grid plc
InstitutionBlackRock Variable Series Funds, Inc. - BlackRock Managed Volatility V.I. Fund Class I
Latest Disclosed Ownership10,931 shares
Latest Disclosed Value $ 160,452
BlackRock Variable Series Funds, Inc. - BlackRock Managed Volatility V.I. Fund Class I ownership in NG. / National Grid plc

On August 28, 2025 - BlackRock Variable Series Funds, Inc. - BlackRock Managed Volatility V.I. Fund Class I filed a NPORT-P form disclosing ownership of 10,931 shares of National Grid plc (GB:NG.) valued at $160,452 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 27, 2025 disclosing 10,931 shares of National Grid plc. This represents a change in shares of 0.00% during the quarter.

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)
2025-08-28 2025-06-30 NP National Grid EC GB00BDR05C01 10,931 0 0.00 160 12.68 0.1056
2025-05-27 2025-03-31 NP National Grid EC GB00BDR05C01 10,931 0 0.00 143 10.08 0.0951
2025-02-27 2024-12-31 NP National Grid EC GB00BDR05C01 10,931 0 0.00 130 -14.57 0.0803
2024-11-26 2024-09-30 NP National Grid EC GB00BDR05C01 10,931 0 0.00 151 23.77 0.0929
2024-08-27 2024-06-30 NP National Grid EC GB00BDR05C01 10,931 2,468 29.16 122 7.02 0.0738
2024-05-28 2024-03-31 NP National Grid EC GB00BDR05C01 8,463 0 0.00 114 0.00 0.0666
2024-02-27 2023-12-31 NP National Grid EC GB00BDR05C01 8,463 0 0.00 114 12.87 0.0684
2023-11-22 2023-09-30 NP National Grid EC GB00BDR05C01 8,463 0 0.00 101 -9.82 0.0609
2023-08-25 2023-06-30 NP National Grid EC GB00BDR05C01 8,463 -4,002 -32.11 112 -33.33 0.0656
2023-05-26 2023-03-31 NP National Grid EC GB00BDR05C01 12,465 0 0.00 169 12.75 0.0996
2023-02-24 2022-12-31 NP National Grid EC GB00BDR05C01 12,465 -5,579 -30.92 149 -19.46 0.0858
2022-11-28 2022-09-30 NP National Grid EC GB00BDR05C01 18,044 -4,958 -21.55 186 -37.29 0.1091
2022-08-26 2022-06-30 NP National Grid EC GB00BDR05C01 23,002 0 0.00 296 -16.43 0.1659
2022-05-25 2022-03-31 NP National Grid EC GB00BDR05C01 23,002 2,768 13.68 353 21.31 0.1784
2022-02-25 2021-12-31 NP National Grid EC GB00BDR05C01 20,234 0 0.00 292 20.75 0.1358
2021-11-26 2021-09-30 NP National Grid EC GB00BDR05C01 20,234 5,753 39.73 241 30.98 0.1104
2021-08-24 2021-06-30 NP National Grid EC GB00BDR05C01 14,481 1,515 11.68 184 20.26 0.0836
2021-05-25 2021-03-31 NP National Grid EC GB00BDR05C01 12,966 2,229 20.76 154 21.43 0.0702
2021-02-24 2020-12-31 NP National Grid EC GB00BDR05C01 10,737 -1,567 -12.74 127 -10.64 0.0567
2020-11-24 2020-09-30 NP National Grid EC GB00BDR05C01 12,304 -1,944 -13.64 141 -18.50 0.0668
2020-08-24 2020-06-30 NP National Grid EC GB00BDR05C01 14,248 -834 -5.53 174 -1.70 0.0833
2020-05-26 2020-03-31 NP National Grid EC GB00BDR05C01 15,082 12,241 430.87 176 486.67 0.0868
2019-11-25 2019-09-30 NP National Grid EC GB00BDR05C01 2,841 2,841 31 0.0131
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.