UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the Month of ~~October~~November 2023

Commission File Number: 001-37452

CELYAD ONCOLOGY SA

(Translation of registrant’s name into English)

9 rue André Dumont

1435 Mont-Saint-Guibert, Belgium

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40- F.

Form 20-F ☒ Form 40-F ☐

Celyad Oncology SA

On ~~October~~November 2714, 2023, Celyad Oncology SA (the “Company”) ~~published~~issued ~~the~~a ~~convening~~press ~~letter~~release toannouncing ~~the~~that ~~extraordinary~~on ~~general~~November 14, ~~meeting~~2023 ofit issued a ~~shareholders~~total of 14 ~~November~~,903,846 ~~2023~~new ordinary shares, with no nominal value per share (“Ordinary Shares”) to CFIP CLYD (UK) Limited, an affiliate of Fortress Investment Group. As a result, the Company’s share capital increased to €88,378,224.25 and is represented by 41,428,572 Ordinary Shares.

AThis ~~copy~~information is published in accordance with Article 15 of the ~~Company’s~~Belgian ~~convening~~Law ~~notice~~of 2 May is2007 ~~attached~~on ~~hereto~~the asdisclosure ~~Exhibit~~of ~~99.1~~major ~~and~~participations isin ~~incorporated~~issuers ~~herein~~whose ~~by reference~~shares are admitted to trading on a regulated market and regarding miscellaneous provisions.

A copy of the Company’s press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information contained in this Current Report on Form 6-K, including Exhibit 99.1 is hereby incorporated by reference into the Company’s Registration Statements on Forms F-3 (File No. 333-248464) and S-8 (File No. 333- 220737).

EXHIBITS

Exhibit		Description
99.1		~~Convening~~Press ~~notice~~release ~~published~~issued by the registrant on ~~October~~November 2714, 2023

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

CELYAD ONCOLOGY SA

Date: October 27, 2023

/s/ Georges Rawadi

Date: November 15, 2023

/s/ Georges Rawadi

Georges Rawadi

Chief Executive Officer

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