Groupe Bruxelles Lambert : GBL successfully completes the sale of approximately 18.1 million shares of Mowi ASA

June 22, 2022 - Before 8:30am CET

Delivering meaningful growth

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OR INDIRECTLY, IN OR INTO THE UNITED STATES, CANADA, AUSTRALIA, JAPAN,

SOUTH AFRICA OR ANY OTHER JURISDICTION IN WHICH OFFERS OR SALES WOULD BE

PROHIBITED BY APPLICABLE LAW. THIS ANNOUNCEMENT IS NOT AN OFFER OF SECURITIES FOR SALE IN ANY JURISDICTION, INCLUDING THE UNITED STATES, CANADA, SOUTH AFRICA, AUSTRALIA OR JAPAN. NEITHER THIS ANNOUNCEMENT NOR ANYTHING CONTAINED HEREIN SHALL FORM THE BASIS OF, OR BE RELIED UPON IN CONNECTION WITH, ANY OFFER OR COMMITMENT WHATSOEVER IN ANY JURISDICTION

GBL successfully completes the sale of approximately 18.1 million shares

of Mowi ASA

Groupe Bruxelles Lambert SA ("GBL"), an investment holding company listed on Euronext Brussels, through its wholly-owned subsidiary Owen Capital S.à.r.l., announces that it has successfully sold approximately 18.1 million shares of Mowi ASA ("Mowi").

GBL has successfully completed the sale of approximately 18.1 million shares of Mowi, corresponding to 3.5% of Mowi's share capital, by way of an accelerated bookbuilding process (the "Offering") at a price of NOK 222 per share, representing approximately EUR 0.4 billion of proceeds.

GBL retains approximately 18.1 million shares in Mowi, equivalent to 3.5% of the company's capital and voting rights. GBL's holding in Mowi has fallen below the 5% threshold pursuant to section 4-2 of the Norwegian Securities Trading Act.

This transaction was done in the context of the group's portfolio rotation strategy, which has entailed over EUR 26 billion1 from the beginning of 2012 through the first quarter of 2022. The stake sold represents approximately 2% of the NAV as of March 31, 2022.

The sale generated a capital gain of nearly EUR 0.1 billion, which will not impact GBL's consolidated net result, as per IFRS 9.

GBL will be subject to a 90 calendar day lock-up agreement from the settlement date of the Offering, which is expected to take place on June 24, 2022, with respect to its remaining holding in Mowi, subject to certain exceptions or waiver by the Bookrunner.

GBL is co-controlled by Ségolène Gallienne - Frère and The Desmarais Family Residuary Trust. GBL does not hold any other rights on the Mowi shares. Goldman Sachs Bank Europe SE acted as Sole Bookrunner in connection with this transaction. ABG Sundal Collier acted as Placing Agent.

This press release is subject to the disclosure requirements pursuant to Section 4-2 the Norwegian Securities Trading Act.

1 Excluding share buybacks

Press release June 22, 2022 // Page 1 / 3 // For more information: https://www.gbl.be/en

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 over sixty years of stock exchange listing, a net asset value of EUR 21.3 billion and a market capitalization of EUR 14.7 billion at the end of March 2022. GBL is a leading investor in Europe, focused on long-term value creation and relying on a stable and supportive family shareholder base. GBL is both a responsible company and investor and perceives ESG factors as being inextricably linked to value creation.

GBL strives to maintain a diversified high-quality portfolio of listed and private assets as well as alternative investments (through Sienna Investment Managers, the group's alternative investment platform), composed of global companies that are leaders in their sector, to which it can contribute to value creation by being an active professional investor.

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

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

This release may contain certain forward-looking statements relating to the group's future business, development and economic performance. Such statements may be subject to a number of risks, uncertainties and other important factors, such as but not limited to force majeure, competitive pressures, legislative and regulatory developments, global, macroeconomic and political trends, the group's ability to attract and retain the employees that are necessary to generate revenues and to manage its businesses, fluctuations in currency exchange rates and general financial market conditions, changes in accounting standards or policies, delay or inability in obtaining approvals from authorities, technical developments, litigation or adverse publicity and news coverage, each of which could cause actual development and results to differ materially from the statements made in this release. GBL assumes no obligation to update or alter forward-looking statements whether as a result of new information, future events or otherwise.

IMPORTANT REGULATORY NOTICE

This announcement is not for publication, distribution or release, directly or indirectly, in or into the United States of America (including its territories and possessions, any state of the United States of America and the District of Columbia), Canada, South Africa, Australia or Japan or any other jurisdiction where such an announcement would be unlawful. The distribution of this announcement may be restricted by law in certain jurisdictions and persons into whose possession this document or other information referred to herein comes should inform themselves about and observe any such restriction. Any failure to comply with these restrictions may constitute a violation of the securities laws of any such jurisdiction.

The securities referred to herein have been and will be offered only to qualified institutional buyers in reliance on Section (4)(a)(1½) of the U.S. Securities Act of 1933, and to non-U.S. persons outside the United States pursuant to Regulation S under the Securities Act, subject to prevailing market and other conditions. There is no assurance that

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the offering will be completed or, if completed, as to the terms on which it is completed. The securities referred to herein have not been and will not be registered under the U.S. Securities Act of 1933, and may not be offered or sold in the United States without registration thereunder or pursuant to an available exemption therefrom. Neither this document nor the information contained herein constitutes or forms part of an offer to sell, or the solicitation of an offer to buy, securities in the United States. There has been and will be no public offer of any securities in the United States or in any other jurisdiction. This press release does not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall it constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale would be unlawful.

No representation or warranty, express or implied, is or will be made as to, or in relation to, and no responsibility or liability is or will be accepted by the banks (each, a "Bank") or by any of their respective affiliates or agents as to, or in relation to, the accuracy or completeness of this announcement or any other written or oral information made available to or publicly available to any interested party or its advisers, and any liability therefore is expressly disclaimed.

In connection with the offering of the shares of Mowi ASA (the "Shares"), each Bank and any of its respective affiliates acting as an investor for their own account may take up as a proprietary position any Shares and in that capacity may retain, purchase or sell for their own account such Shares. In addition, each Bank or its respective affiliates may enter into financing arrangements and swaps with investors in connection with which any Bank (or its affiliates) may from time to time acquire, hold or dispose of Shares. The Banks do not intend to disclose the extent of any such investment or transactions otherwise than in accordance with any legal or regulatory obligation to do so.

The information contained in this announcement is for background purposes only and does not purport to be full or complete. No reliance may be placed for any purpose on the information contained in this announcement or its accuracy or completeness. This announcement does not purport to identify or suggest the risks (direct or indirect) which may be associated with an investment in the Shares. Any investment decision in connection with the Shares must be made solely on the basis of all publicly available information relating to the Shares (which has not been independently verified by the Banks).

The Banks are acting on behalf of the selling shareholder and no one else in connection with any offering of the Shares and will not be responsible to any other person for providing the protections afforded to clients of the Banks nor for providing advice in relation to any offering of the Shares.

Press release June 22, 2022 // Page 3 / 3 // For more information: https://www.gbl.be/en