Company: MCGAU
Filing Date: 2025-06-06
Form Type: S-1/A
Source: 0001213900-25-051715
Chunk: 33

Company: Yorkville Acquisition Corp.
Filing Date: 2025-06-06
Form: S-1/A
Chunk 33
---
 thereafter, no Transfers without the prior written consent of Clear Street.                                                             |     | Our sponsor, officers, directors and director nominees |     | Same as above.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |

Up to 750,000 of the founder shares will be surrendered for no consideration depending on the extent to which the underwriters’ over -allotmentoption is exercised. In addition, in order to facilitate our initial business combination or for any other reason determined by our sponsor in its sole discretion, our sponsor may surrender or forfeit, transfer or exchange our founder shares, placement units or any of our other securities, including for no consideration, as well as subject any such securities to earn -outsor other restrictions, or otherwise amend the terms of any such securities or enter into any other arrangements with respect to any such securities. We may also issue Class A ordinary shares upon conversion of the Class B ordinary shares at a ratio greater than one -to -oneat the time of our initial business combination as a result of the anti -dilutionprovisions as set forth therein.

15

Pursuant to the underwriting agreement to be entered into by us and Clear Street, we have agreed to issue to Clear Street and/or its designees, 199,500 Class A ordinary shares (or 229,425 Class A ordinary shares if the underwriters’ over -allotmentoption is exercised in full), also referred to herein as representative shares, upon the consummation of this offering, as summarized in the table below.

| Type of               
 Securities            |     |   Number of 
  Securities 
 Outstanding 
      Before 
    Offering |     |      Number of 
     Securities 
    Outstanding 
 After Offering 
   (assuming no 
 over-allotment 
         option 
     exercised) |     |      Number of 
     Securities 
    Outstanding 
 After Offering 
      (assuming 
 over-allotment 
         option 
      exercised 
       in full) |     | Lock-Up Terms                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| Representative Shares |     |           0 |     |        199,500 |     |        229,425 |     | The holders of the representative shares have agreed (i) that they will not transfer, assign or sell any such shares without our prior consent until the completion of our initial business combination, (ii) to waive their redemption rights (or right to participate in any tender offer) with respect to such shares in connection with the completion of our initial business