National Grid Ownership & Insider Activity

National Grid (NGG) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 0.3% of shares outstanding. Institutional investors hold 0.7%.

Shares Outstanding

1.005B

Shares Float

1.005B

Insider Shares Owned

13.201M

Insider % Owned

0.3%

Institutional Shares Held

7.386M

Institutional % Held

0.7%

Ownership Breakdown

Congressional Trading Activity

Date	Member	Party	Chamber	Action	Amount
Sep 23, 2025	Val Hoyle	D	House	Sale	$1,001 - $15,000
Jul 10, 2025	Lisa McClain	R	House	Sale	$1,001 - $15,000
Jun 24, 2025	Lisa McClain	R	House	Purchase	$1,001 - $15,000
Oct 29, 2024	Val Hoyle	D	House	Purchase	$1,001 - $15,000