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PROSPECTUS SUPPLEMENT No. 4 | | Filed Pursuant to Rule 424(b)(3) |
(to Prospectus dated May 31, 2022) | | Registration No. 333-265191 |

Up to 8,108,110 Shares of Class A Common Stock
This prospectus supplement supplements the prospectus, dated May 31, 2022, or the Prospectus, which forms a part of our registration statement on Form S-1 (No. 333-265191). This prospectus supplement is being filed to update and supplement the information in the Prospectus with the information contained in our Current Report on Form 8-K filed with the Securities and Exchange Commission on July 20, 2022, or the Current Report. Accordingly, we have attached the Current Report to this prospectus supplement.
The Prospectus and this prospectus supplement relate to the offer and sale from time to time by the selling securityholder named in this prospectus, or the Selling Securityholder, of an aggregate of up to 8,108,110 shares of our Class A common stock, $0.0001 par value per share, or Class A common stock, which consists of (i) up to 4,054,055 shares of our Class A common stock and (ii) up to 4,054,055 shares of our Class A common stock issuable upon the exercise of certain common stock purchase warrants, or the PIPE Warrants, which shares of Class A common stock and PIPE Warrants were originally issued in a private placement to the Selling Securityholder.
The Class A Common Stock and Public Warrants are listed on The Nasdaq Stock Market LLC under the symbols “CELU” and “CELUW”, respectively. On July 19, 2022, the last reported sales price of Class A Common Stock was $3.50 per share and the last reported sales price of our Public Warrants was $0.52 per warrant.
This prospectus supplement should be read in conjunction with the Prospectus, including any amendments or supplements thereto, which is to be delivered with this prospectus supplement. This prospectus supplement is qualified by reference to the Prospectus, including any amendments or supplements thereto, except to the extent that the information in this prospectus supplement updates and supersedes the information contained therein.
This prospectus supplement is not complete without, and may not be delivered or utilized except in connection with, the Prospectus, including any amendments or supplements thereto.
Investing in our securities involves a high degree of risk. You should review carefully the risks and uncertainties described in the section titled “Risk Factors” beginning on page 5 of the Prospectus, and under similar headings in any amendments or supplements to the Prospectus.
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities, or passed upon the accuracy or adequacy of the Prospectus or this prospectus supplement. Any representation to the contrary is a criminal offense.
Prospectus supplement dated July 20, 2022.