Company: MCGAU
Filing Date: 2025-08-26
Form Type: 425
Source: 0001104659-25-083156
Chunk: 17

Company: Yorkville Acquisition Corp.
Filing Date: 2025-08-26
Form: 425
Chunk 17
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 not to, and agrees not cause any direct or indirect Affiliate to, (i) sell, offer to sell, contract or agree to sell, hypothecate, pledge, grant any option to purchase or otherwise dispose of or agree to dispose of, directly or indirectly, or establish or increase a put equivalent position or liquidation with respect to or decrease a call equivalent position within the meaning of Section 16 of the Securities and Exchange Act of 1934, as amended, and the rules and regulations of the SEC promulgated thereunder with respect to, any Restricted Securities, (ii) enter into any hedging, swap or other arrangement or transaction that transfers to another, in whole or in part, any of the economic consequences of ownership of any Restricted Securities, whether any such transaction is to be settled by delivery of such securities, in cash or otherwise, or (iii) publicly announce the intention to effect any transaction specified in clause (i) or (ii) (any of the foregoing described in clauses (i), (ii) or (iii), a “ Prohibited Transfer”).During the 6-month
period following the Initial Lockup Period (“Window 1”), the Lock-Up Party and any direct or indirect Affiliate may
sell up to 10% of Lock-Up Party’s Restricted Securities. During the 6-month period following Window 1 (“Window 2”),
the Lock-Up Party and any direct or indirect Affiliate may sell up to 15% of the Lock-Up Party’s aggregate Restricted Securities.
During the 12-month period following Window 2 (“Window 3”) the Lock-Up Party and any direct or indirect Affiliate may
sell up to 25% of the Lock-Up Party’s aggregate Restricted Securities so long as no more than 10% of the Lock-Up Party’s aggregate
Restricted Securities are sold within any 3-month period. During the 12-month period following Window 3 (“Window 4”),
the Lock-Up Party and any direct or indirect Affiliate may sell up to 25% of the Lock-Up Party’s aggregate Restricted Securities
so long as no more than 10% of the Lock-Up Party’s aggregate Restricted Securities are sold within any 3-month period. At the conclusion
of Window 4, the Lock-Up Party and any direct or indirect Affiliate may sell all remaining aggregate shares.

The foregoing description of the Lock-Up Agreement
and the Transactions contemplated by the Lock-Up Agreement is not complete and is subject to, and qualified in its entirety by reference
to, the agreed upon form