Description of the Share Buyback Program Approved by the Combined Ordinary and Extraordinary General Meeting of Shareholders on May 27, 2025

Regulatory News:

Legrand (Paris:LR) is the global specialist in electrical and digital building infrastructures. Its comprehensive offering of solutions for residential, commercial, and datacenter markets makes it a benchmark for customers worldwide. The Group harnesses technological and societal trends with lasting impacts on buildings with the purpose of improving life by transforming the spaces where people live, work and meet with electrical, digital infrastructures and connected solutions that are simple, innovative and sustainable. Drawing on an approach that involves all teams and stakeholders, Legrand is pursuing a strategy of profitable and responsible growth driven by acquisitions and innovation, with a steady flow of new offerings that include products with enhanced value in use (energy and digital transition solutions: datacenters, digital lifestyles and energy transition offerings). Legrand reported sales of €8.6 billion in 2024. The company is listed on Euronext Paris and is a component stock of the CAC 40, CAC 40 ESG and CAC SBT 1.5 indexes. (code ISIN FR0010307819).

https://www.legrandgroup.com

The Board of Directors of Legrand (“the Company”) met on May 27, 2025 and agreed to set up a share buyback program as authorized by shareholders at the Ordinary and Extraordinary General Meeting held on May 27, 2025.

Established in accordance with articles 241-1 and following of the General Regulation of the French Financial Markets Authority (Autorité des Marchés Financiers), this description is drawn up for the purpose of setting out the objectives and terms of Legrand’s share buyback program set up by the Board of Directors of Legrand met on May 27, 2025 (“the Share Buyback Program”), pursuant to the authorization granted by the above-mentioned General Meeting of Shareholders.

I. Number of shares and percentage of share capital held by the Company

On May 23, 2025, the Company’s share capital consisted of 262,245,733 shares.

At the same date, the Company held 580,409 of its own shares.

II. Allocation by purpose of securities held by the Company

On May 23, 2025, the 580,409 own shares held by the Company were allocated by purpose as follows:

- 48,750 shares are allocated to a liquidity agreement that complies with the Code of Ethics recognized by the French Financial Markets Authority (Autorité des marchés financiers) and is concluded with an independent investment services provider, and

- 531,659 shares are allocated to the implementation of any performance share plans under the provisions of articles L. 225-197-1 and seq. and L.22-10-59 and L.22-10-60 of the French Commercial Code.