Company: MCGAU
Filing Date: 2025-08-26
Form Type: 425
Source: 0001104659-25-083156
Chunk: 7

Company: Yorkville Acquisition Corp.
Filing Date: 2025-08-26
Form: 425
Chunk 7
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 its entirety by reference to, the Form of
Earnout Warrant, a copy of which is filed with this Current Report as Exhibit 4.1, and the terms of which are incorporated
into this Current Report by reference.

Forced Exercise Warrants

Pursuant to the terms of the Series A Forced
Exercise Warrants (the “Forced Exercise Warrants”) for value received, a holder will, upon the terms and subject to
the limitations on exercise and the conditions set forth in the Forced Exercise Warrant, on the first day on or after August 25,
2025, on which the Trading Price of the Shares of the Company is at or above $20.00 (as adjusted for stock splits, stock dividends, combinations,
reclassifications and similar events) (the “Trigger” and, such date, the “Trigger Date”), subscribe
for and purchase from the Company, 10,000.000 (or, in the case of the Sponsor, 2,000,000) shares of SPAC Class A Common Stock (as
subject to adjustment, the “Forced Exercise Warrant Shares”); provided that, should the Trigger occur prior to the
date of such Forced Exercise Warrant, the holder will purchase the Forced Exercise Warrant Shares on the date of the Forced Exercise Warrant
in connection with the Closing (the date of forced exercise, the “Exercise Date”). The Forced Exercised Warrant will
terminate and become void, and all rights thereunder will cease, at 5:00 p.m., New York City time, on the third anniversary
of the Closing Date. The purchase price of one share of SPAC Class A Common Stock under the Forced Exercised Warrant is equal to
$10.00, subject to adjustment under the terms of the Forced Exercise Warrant.

The foregoing description of the Forced Exercise
Warrants and the Transactions contemplated thereby is not complete and is subject to, and qualified in its entirety by reference to, the
Form of Forced Exercise Warrant, a copy of which is filed with this Current Report as Exhibit 4.2, and the terms of which
are incorporated into this Current Report by reference.

The Closing

The Closing will occur as promptly as practicable,
but in no event later than five Business Days, after the satisfaction or, if permissible, waiver of the conditions set forth in the Business
Combination Agreement. Effective at the Closing, the board of directors of the Company (the “Board”) will