Celyad Oncology : Articles of Associations - informal version - EN

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SCRL civile Berquin Notaires - avenue Lloyd George 11 - 1000 Bruxelles

VAT BE 0474.073.840 - BRUSSELS Registry of Legal Entities - www.berquinnotaires.be

Tel.: [phone] Fax: [phone]

Coordinated Articles of Association

of the listed société anonyme (a Belgian corporation)

"Celyad Oncology"

at 1435 Mont-Saint-Guibert, Rue Edouard Belin 2,

company number 0891.118.115 - Brabant Wallon Registry of Legal Entities

following amendment of the articles of

association on [●] 2023

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HISTORY

ARTICLES OF ASSOCIATION

The Company was formed with the name "Cardio³ BioSciences" following a document received by Counselor Gérard Indekeu, a notary in Brussels, on July 24, 2007, published in the Appendices to the Moniteur Belge (the Belgian official gazette) on the following August 6, under number 07117087.

AMENDMENTS TO THE ARTICLES OF ASSOCIATION

The articles of association were modified following a memorandum drawn up by the aforementioned notary Indekeu on August 31, 2007, published in the appendices to the Moniteur Belge under number 20071003/0143533.

The articles of association were modified following a memorandum drawn up by the notary and partnership, Pierre Paulus de Châtelet, having resided in Rixensart, on September 26, 2008, Moniteur Belge number 2008-10-13 / 0162065.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Pierre Palus de Châtelet, on December 23, 2008, published in the appendices to the Moniteur Belge under number 20090120/09010290.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Pierre Palus de Châtelet, on May 5, 2010, published in the appendices to the Moniteur Belge under number 2010-06-03 / 0079698.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Pierre Palus de Châtelet, on October 29, 2010, published in the appendices to the Moniteur Belge under number 20101201-0174259.

The articles of association were corrected following a memorandum drawn up by the notary Françoise Montfort in Rixensart, on January 7, 2011, published in the appendices to the Moniteur Belge under number 20110131-0016668.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on May 5, 2011, published in the appendices to the Moniteur Belge under number 20110606-84155.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on May 6, 2013, published in the appendices to the Moniteur Belge under number 2013-06-05 / 0084810.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on May 31, 2013, published in the appendices to the Moniteur Belge under number 2013-06-20 / 0093935.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on June 4, 2013, published in the appendices to the Moniteur Belge under number 2013-06-24 / 0095581.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on July 9, 2013, published in the appendices to the Moniteur Belge under number 2013-07-26 / 0117431.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on July 17, 2013, published in the appendices to the Moniteur Belge under number 2013-08-16/0128300.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on September 26, 2013, published in the appendices to the Moniteur Belge under number 2013-10-14-0155339.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on January 31, 2014, published in the appendices to the Moniteur Belge under number 20140319-0063903.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on May 5, 2014, published in the appendices to the Moniteur Belge under number 2014-06-05 / 0112591.

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The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on June 16, 2014, published in the appendices to the Moniteur Belge under number 20140709/0132868.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on June 30, 2014, published in the appendices to the Moniteur Belge under number 20140722/0141424.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on August 4, 2014, published in the appendices to the Moniteur Belge under number 20140825-0159432.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on November 3, 2014, published as an excerpt in the appendices to the following Moniteur Belge under number 20141128-0214987.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on January 31, 2014, published in the appendices to the Moniteur Belge under number 2015-02-13 / 0024685.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on February 7, 2015, published in the appendices to the Moniteur Belge under number 2015-02-26 / 0031768

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on March 3, 2015, published in the appendices to the Moniteur Belge under number 20150325-0044740.

The articles of association were modified with a company name change to "Celyad" following a memorandum drawn up by the aforementioned notary Françoise Montfort, on May 5, 2015, currently in the process of publication.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on May 11, 2015, published as an excerpt in the appendices to the following Moniteur Belge under number 20150602-077515.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on June 24, 2015, published as an excerpt in the appendices to the Moniteur Belge under number 20150715-0102184.

The articles of association were modified following a memorandum drawn up by the aforementioned notary Françoise Montfort, on August 4, 2015, published in the appendices to the Moniteur Belge on the following September 4 under number 15126625.

The articles of association were modified following a memorandum drawn up by Counselor Peter Van Melkebeke, a notary in Brussels, on February 1, 2017, published in the appendices to the Moniteur Belge on the following February 21 under number 17028104.

The articles of association were modified following a memorandum drawn up by Counselor Peter Van Melkebeke, a notary in Brussels, on May 2, 2017, published in the appendices to the Moniteur Belge on the following May 22 under number 17072065.

The articles of association were modified following a memorandum drawn up by Counselor Gaëtan Delvaux, a notary in Jodoigne, standing in for his colleague, Counselor Peter Van Melkebeke, a notary in partnership in Brussels, suffering a statutory impediment ratione loci, on June 29, 2017, published in the appendices to the Moniteur Belge on the following August 2, under number 17112698.

The articles of association were modified following a memorandum drawn up by Counselor Peter Van Melkebeke, a notary in Brussels, on August 1, 2017, published in the appendices to the Moniteur Belge on the following August 25 under number 1712334.

The articles of association were modified following a memorandum drawn up by Counselor Peter Van Melkebeke, a notary in Brussels, on August 23, 2017, published in the appendices to the Moniteur Belge on the following September 7 under number 17128258.

The articles of association were modified following a deed drawn up before Counselor Tim Carnewal, a notary in Brussels, on November 9, 2017, published in the appendices to the Moniteur Belge on the following December 4, under number 17169624.

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The articles of association were modified following a deed drawn up by Counselor Tim Carnewal, a notary in Brussels, on February 7, 2018, published in the appendices to the Moniteur Belge on the following February 28, under number 18038617.

The articles of association were modified following a deed drawn up before counselor Peter Van Melkebeke, a notary in Brussels, on May 22, 2018, published in the appendices to the Moniteur Belge on the following May 22, under number 18315097.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on May 23, 2019, published in the appendices to the Moniteur Belge on the following June 6, under number 19320254.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on September 16, 2019, published in the appendices to the Moniteur Belge on the following October 2, under number 19336608.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on June 8, 2020, published in the appendices to the Moniteur belge on the following June 22, 2020, under number 20069480.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on January 8, 2021, published in the appendices to the Moniteur belge on the following January 20, 2021, under number 21304690.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on March 29, 2021, published in the appendices to the Moniteur belge on the following April 2, 2021, under number 21321039.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on April 9, 2021, published in the appendices to the Moniteur belge on the following April 15, 2021, under number 21324088.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on April 29, 2021, published in the appendices to the Moniteur belge on the following May 7, 2021, under number 21329013.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on May 21, 2021, published in the appendices to the Moniteur belge on the following May 31, 2021, under number 21333097.

The articles of association were modified following a deed drawn up before Counselor Jean- Frédéric VIGNERON, notary in Wavre, replacing Peter Van Melkebeke, notary in Brussels, prevented ratione loci, on May 25, 2021, published in the appendices to the Moniteur belge on the following June 9, 2021, under number 21335214.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on June 14, 2021, published in the appendices to the Moniteur belge on the following June 9, 2021, under number 21339039.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on June 28, 2021, published in the appendices to the Moniteur belge on August 23, 2021, under number 21349967.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on July 22, 2021, published in the appendices to the Moniteur belge on September 3, 2021, under number 21351913.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on October 20, 2021, published in the appendices to the Moniteur belge on September 3, 2021, under number 21367545.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on December 8, 2021, published in the appendices to the Moniteur belge on December 29, 2021, under number 21379504.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on September 4, 2023, published in the appendices to the Moniteur belge on September 11, 2023, under number 23389543sent for publication to the Moniteur belge.

The articles of association were modified following a deed drawn up before Counselor Peter Van Melkebeke, a notary in Brussels, on [●], sent for publication to the appendices of the Moniteur belge.

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CHANGE IN REGISTERED OFFICE:

The registered office was changed to the current address by decision of the board of directors dated March 16, 2016, published in the appendices to the Moniteur Belge of the following June 9, under number 16079203.

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