National Grid (NYSE: NGG) reports voting rights and July insider trades

Rhea-AI Filing Summary

National Grid plc reports that as of 30 June 2026 its registered capital consisted of 5,198,968,690 ordinary shares, including 223,090,607 held as treasury shares, leaving 4,975,878,083 shares with voting rights. Shareholders may use this voting-rights figure when assessing disclosure thresholds under UK rules.

The company details several July 2026 share dealings by senior management. Chief Financial Officer Andy Agg received 220,905 shares under the 2023 Long Term Performance Plan at no cost, then sold 104,191 shares at GBP £12.210223 to cover tax, and later acquired 140 dividend shares at GBP 12.3966 via the Share Incentive Plan. Chair Paula Rosput Reynolds acquired 82 American Depositary Shares at USD 80.5453 and 82 ordinary shares at GBP 11.977 through the Scrip Dividend Scheme, reflecting dividend reinvestment elections.

Key Figures

Ordinary shares issued: 5,198,968,690 shares Treasury shares: 223,090,607 shares Shares with voting rights: 4,975,878,083 shares +5 more

8 metrics

Ordinary shares issued 5,198,968,690 shares Registered capital as of 30 June 2026

Treasury shares 223,090,607 shares Held in treasury as of 30 June 2026

Shares with voting rights 4,975,878,083 shares Voting-rights denominator as of 30 June 2026

LTPP shares acquired by CFO 220,905 shares 2023 Long Term Performance Plan award on 1 July 2026

Shares sold to cover tax 104,191 shares at GBP £12.210223 Sale by CFO on 1 July 2026

Dividend shares acquired by CFO 140 shares at GBP 12.3966 Share Incentive Plan dividend shares on 23 July 2026

ADS acquired by Chair 82 ADS at USD 80.5453 Scrip Dividend Scheme on 23 July 2026

Ordinary shares acquired by Chair 82 shares at GBP 11.977 Scrip Dividend Scheme on 23 July 2026

Key Terms

Long Term Performance Plan, Share Incentive Plan, Scrip Dividend Scheme, treasury shares, +1 more

5 terms

Long Term Performance Plan financial

"acquisition of shares by a PDMR under the Company's Long Term Performance Plan"

Share Incentive Plan financial

"Monthly purchase of securities ("partnership shares") under the Share Incentive Plan"

A share incentive plan is a company program that gives employees or directors the chance to receive or buy company shares, often after staying with the firm or meeting performance goals. It matters to investors because it’s like giving workers a slice of the company pie to boost performance and loyalty, but issuing those slices can reduce each existing owner’s portion and change metrics such as earnings per share and share count.

Scrip Dividend Scheme financial

"Acquisition of American Depositary Shares under the National Grid Scrip Dividend Scheme"

treasury shares financial

"ordinary shares, of which 223,090,607 were held as treasury shares"

Treasury shares are a company’s own stock that it has repurchased and keeps on its books instead of canceling or leaving in the hands of outside investors. Think of them like coupons a business puts back in a drawer: they don’t vote or receive dividends while held, but they can be reissued later for employee pay or fundraising. For investors this matters because buybacks change the number of shares that count toward earnings and ownership, can boost per‑share metrics, and use corporate cash that might otherwise go to growth or dividends.

Market Abuse Regulation regulatory

"This announcement is made in accordance with Article 19 of the Market Abuse Regulation"

Market abuse regulation consists of laws and rules designed to prevent dishonest or manipulative practices in financial markets. It aims to ensure fair and transparent trading, so investors can trust that markets operate honestly, much like rules that keep a game fair. By reducing unfair advantages, it helps protect investor confidence and promotes healthy, efficient markets.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What are National Grid (NGG) total shares and voting rights as of 30 June 2026?

As of 30 June 2026, National Grid had 5,198,968,690 ordinary shares in issue, with 223,090,607 held as treasury shares. This left 4,975,878,083 shares carrying voting rights, which shareholders use as the denominator for UK disclosure calculations.

What Long Term Performance Plan shares did NGG CFO Andy Agg receive in July 2026?

On 1 July 2026, CFO Andy Agg acquired 220,905 National Grid ordinary shares for GBP Nil under the 2023 Long Term Performance Plan. The award was subject to performance conditions, continued employment, holding requirements, and malus and clawback provisions.

What shares did NGG CFO Andy Agg sell to cover tax on his LTPP award?

On 1 July 2026, CFO Andy Agg sold 104,191 National Grid ordinary shares at GBP £12.210223 each. The sale followed the vesting of his 2023 Long Term Performance Plan award and was undertaken specifically to cover related tax liabilities.

What share purchases did NGG CFO Andy Agg make via employee share plans in July 2026?

On 7 July 2026, CFO Andy Agg bought 13 partnership shares at GBP 12.3129 under the Share Incentive Plan. On 23 July 2026, he also acquired 140 dividend shares at GBP 12.3966 through the same plan, reinvesting his final dividend.

What scrip dividend shares did NGG Chair Paula Rosput Reynolds receive in July 2026?

On 23 July 2026, Chair Paula Rosput Reynolds acquired 82 American Depositary Shares at USD 80.5453 and 82 ordinary shares at GBP 11.977. Both transactions were under National Grid’s Scrip Dividend Scheme, representing share-based dividend elections.

How do the Share Incentive Plan and Scrip Dividend Scheme affect NGG insiders in this report?

The report shows insiders using the Share Incentive Plan and Scrip Dividend Scheme to take dividends and incentives in shares. CFO Andy Agg reinvested dividends and bought partnership shares, while Chair Paula Rosput Reynolds received ADS and ordinary shares instead of cash dividends.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

__________________________________________________________ 

FORM 6-K

__________________________________________________________ 

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

Date: 31 July 2026

Commission File Number: 001-14958

__________________________________________________________ 

NATIONAL GRID plc

(Translation of registrant’s name into English)

England and Wales

(Jurisdiction of Incorporation) 

__________________________________________________________ 

1-3 Strand, London, WC2N 5EH, United Kingdom

(Address of principal executive office)

__________________________________________________________ 

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

☒  Form 20-F      ☐  Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3- 2(b) under the Securities Exchange Act of 1934.  ☐  Yes    ☒  No

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): n/a

EXHIBIT INDEX

Exhibit No.	Description
99.1	Exhibit 99.1 Announcement sent to the London Stock Exchange on 01 July 2026 — Total Voting Rights
99.2	Exhibit 99.2 Announcement sent to the London Stock Exchange on 03 July 2026 — Director/PDMR Shareholding
99.3	Exhibit 99.3 Announcement sent to the London Stock Exchange on 08 July 2026 — Director/PDMR Shareholding
99.4	Exhibit 99.4 Announcement sent to the London Stock Exchange on 27 July 2026 — Director/PDMR Shareholding

Exhibit 99.1

1 July 2026

National Grid plc ('National Grid' or 'Company')

Voting Rights update

National Grid's registered capital as of 30 June 2026 consisted of 5,198,968,690 ordinary shares, of which, 223,090,607 were held as treasury shares; leaving a balance of 4,975,878,083 with voting rights.

The figure of 4,975,878,083 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, National Grid under the FCA's Disclosure Guidance and Transparency Rules.

Julian Baddeley                              

Group Company Secretary

Exhibit 99.2

3 July 2026

National Grid plc ('National Grid' or 'Company')

Notification of Transactions of Persons Discharging Managerial

Responsibilities ('PDMRs')

This announcement is made in accordance with Article 19 of the Market Abuse Regulation ('MAR') and relates to the acquisition of shares by the following PDMR under the Company's Long Term Performance Plan ('LTPP').

The award relates to the 2023 LTPP and is referred to in the Company's 2025/26 Annual Report and Accounts. The award was conditional on continued employment with the Company and on the satisfaction of the performance conditions approved by the People & Remuneration Committee, which (after tax on the gross award) must be retained until the shareholding requirement is met, and in any event for Executive Directors two years after receipt. This award is subject to malus and clawback provisions.

In accordance with MAR, the relevant Financial Conduct Authority notification is set out below.

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	Andy Agg
2	Reason for the notification
a)	Position/status	Chief Financial Officer
b)	Initial notification /Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	National Grid plc
b)	LEI	8R95QZMKZLJX5Q2XR704
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument Identification code	Ordinary shares of 12 204/473p each GB00BDR05C01
b)	Nature of the transaction	Acquisition of shares in respect of the Long Term Performance Plan ('LTPP') 2023 award.
c)	Price(s) and volume(s)	Price(s)	Volume(s)
		GBP Nil	220,905
d)	Aggregated information - Aggregated volume - Price
e)	Date of the transaction	2026.07.01
f)	Place of the transaction	London Stock Exchange (XLON)
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument Identification code	Ordinary shares of 12 204/473p each GB00BDR05C01
b)	Nature of the transaction	Sale of shares resulting from Long Term Performance Plan ('LTPP') award exercise to cover tax liabilities.
c)	Price(s) and volume(s)	Price(s)	Volume(s)
		GBP £12.210223	104,191
d)	Aggregated information - Aggregated volume - Price
e)	Date of the transaction	2026.07.01
f)	Place of the transaction	London Stock Exchange (XLON)

Exhibit 99.3

8 July 2026

National Grid plc ('National Grid' or 'Company')

Notification of Transaction of Person Discharging Managerial Responsibilities ('PDMRs')

This announcement is made in accordance with Article 19 of the Market Abuse Regulation ('MAR'). In accordance with MAR, the relevant Financial Conduct Authority notification is set out below.

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	Andy Agg
2	Reason for the notification
a)	Position/status	Chief Financial Officer
b)	Initial notification /Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	National Grid plc
b)	LEI	8R95QZMKZLJX5Q2XR704
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument Identification code	Ordinary shares of 12 204/473p each GB00BDR05C01
b)	Nature of the transaction	Monthly purchase of securities ("partnership shares") under the Share Incentive Plan
c)	Price(s) and volume(s)	Price(s)	Volume(s)
		GBP 12.3129	13
d)	Aggregated information - Aggregated volume - Price
e)	Date of the transaction	2026.07.07
f)	Place of the transaction	London Stock Exchange (XLON)

Exhibit 99.4

27 July 2026

National Grid plc ('National Grid' or 'Company')

Notification of Transactions of Persons Discharging Managerial Responsibilities ('PDMRs')

This announcement is made in accordance with Article 19 of the Market Abuse Regulation ('MAR') and relates to the National Grid 2025/26 final dividend scrip alternative and dividend reinvestments.

In accordance with MAR the relevant Financial Conduct Authority notifications are set out below.

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	Andy Agg
2	Reason for the notification
a)	Position/status	Chief Financial Officer
b)	Initial notification /Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	National Grid plc
b)	LEI	8R95QZMKZLJX5Q2XR704
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument Identification code	Ordinary shares of 12 204/473p each GB00BDR05C01
b)	Nature of the transaction	Acquisition of securities ("dividend shares") under the National Grid Share Incentive Plan.
c)	Price(s) and volume(s)	Price(s)	Volume(s)
		GBP 12.3966	140
d)	Aggregated information - Aggregated volume - Price
e)	Date of the transaction	2026.07.23
f)	Place of the transaction	London Stock Exchange (XLON)

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	Paula Rosput Reynolds
2	Reason for the notification
a)	Position/status	Chair
b)	Initial notification /Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	National Grid plc
b)	LEI	8R95QZMKZLJX5Q2XR704
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument   Identification code	American Depository Shares  US 6362744095
b)	Nature of the transaction	Acquisition of American Depositary Shares under the National Grid Scrip Dividend Scheme.
c)	Price(s) and volume(s)	Price(s)	Volume(s)
		USD 80.5453	82
d)	Aggregated information   - Aggregated volume   - Price
e)	Date of the transaction	2026.07.23
f)	Place of the transaction	New York Stock Exchange (NYSE)

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	Paula Rosput Reynolds
2	Reason for the notification
a)	Position/status	Chair
b)	Initial notification /Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	National Grid plc
b)	LEI	8R95QZMKZLJX5Q2XR704
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument   Identification code	Ordinary shares of 12 204/473p each  GB00BDR05C01
b)	Nature of the transaction	Acquisition of Ordinary Shares under the National Grid Scrip Dividend Scheme.
c)	Price(s) and volume(s)	Price(s)	Volume(s)
		GBP 11.977	82
d)	Aggregated information   - Aggregated volume   - Price
e)	Date of the transaction	2026.07.23
f)	Place of the transaction	London Stock Exchange (XLON)

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	NATIONAL GRID plc
	By:	Beth Melges
		Beth Melges Head of Plc Governance

Date: 31 July 2026