Groupe Bruxelles Lambert : Transactions on GBL shares from May 20, 2024 until May 24, 2024 (included)

May 27, 2024 - After 5:45pm CET

Regulated information

Delivering meaningful growth

Transactions on GBL Shares

Disclosure of transaction on GBL shares from May 20, 2024 until May 24, 2024 (included)

Implementation of the authorization of the Extraordinary General Shareholders' Meeting of April 28, 2020

Purchases

GBL, directly and through its subsidiaries, acquired during the period from May 20, 2024 until May 24, 2024 included, as part of:

• The share buyback program: 0 GBL share
• The share buyback program by an independent financial institution on the basis of a discretionary mandate (until August 2, 2024) in the central order book of a regulated market or MTF: 141,321 GBL shares

Trade date	Number of	Average	Lowest	Highest	Amount	Negotiation method / market
shares	price (EUR)	price (EUR) price (EUR)	(EUR)
						Stock Exchange
05/20/2024	18,899	71.72	71.35	72.05	1,355,461	Acquis, CBOE, Turquoise,
						Euronext
						Stock Exchange
05/21/2024	35,882	70.92	70.75	71.40	2,544,662	Acquis, CBOE, Turquoise,
						Euronext
						Stock Exchange
05/22/2024	32,103	70.85	70.65	71.40	2,274,478	Acquis, CBOE, Turquoise,
						Euronext
						Stock Exchange
05/23/2024	33,740	70.65	70.50	71.05	2,383,606	Acquis, CBOE, Turquoise,
						Euronext
						Stock Exchange
05/24/2024	20,697	70.46	70.00	70.60	1,458,282	Acquis, CBOE, Turquoise,
						Euronext
Total	141,321	70.88			10,016,489

• The liquidity agreement: 0 GBL share

Regulated information of May 27, 2024 // Page 1 / 2 // For more information: www.gbl.com

Sales

GBL, directly and through its subsidiaries, sold during the period from May 20, 2024 until May 24, 2024 included, as part of:

• The liquidity agreement: 0 GBL share

As of May 24, 2024, GBL holds directly and through its subsidiaries 9,537,290 GBL shares representing 6.9% of the issued capital, and holds no shares under the liquidity agreement. On that date, 14.7% of the seventh share buyback program is executed1.

Following GBL's decision to use the safe harbour2 regime for the on-the-market share buybacks in the context of a EUR 500 million envelope, the liquidity contract with an independent financial institution has been suspended for an indefinite period.

For more information, please contact:
Xavier Likin	Alison Donohoe
Chief Financial Officer	Head of Investor Relations
Tel: [phone]	Tel: [phone]
[e-mail]	[e-mail]

About Groupe Bruxelles Lambert

Groupe Bruxelles Lambert ("GBL") is an established investment holding company, with seventy years of stock exchange listing and a net asset value of €17.0bn at the end of March 2024. As a leading and active investor in Europe, GBL focuses on long-term value creation with the support of a stable family shareholder base. As a responsible company and investor, GBL perceives ESG factors as being inextricably linked to value creation.

GBL aims to grow its diversified high-quality portfolio of listed, private and alternative investments.

GBL is focused on delivering meaningful growth by providing attractive returns to its shareholders through a combination of growth in its net asset value per share, a sustainable dividend and share buybacks.

GBL is listed on Euronext Brussels (Ticker: GBLB BB; ISIN code: BE0003797140) and is included in the BEL20 index.

1. cf.http://www.gbl.com/en/transactions-gbl-shares
2. Provided for in Regulation (EU) No. 596/2014 of 16 April 2014 on market abuse and Delegated Regulation (EU) No. 2016/1052 of 8 March 2016 with regard to regulatory technical standards for the terms of buyback programs and stabilization measures

Regulated information of May 27, 2024 // Page 2 / 2 // For more information: www.gbl.com