Company: HYAC-WT
Filing Date: 2025-10-14
Form Type: 425
Source: 0001104659-25-099338
Chunk: 15

Company: Haymaker Acquisition Corp. 4
Filing Date: 2025-10-14
Form: 425
Chunk 15
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from the lock-up restrictions on the six month anniversary of the Closing Date and (ii) 33.33% of the locked-up securities held by the
applicable holder as of the Closing Date will be automatically released from the lock-up restrictions on the nine month anniversary of
the Closing Date.

The foregoing description of the Sponsor Support
Agreement is qualified in its entirety by reference to the full text of the Sponsor Support Agreement, which is included as
Exhibit 10.2 to this Current Report on Form 8-K/A, and is incorporated herein by reference.

Registration Rights Agreements

Pursuant to the Business Combination Agreement,
the parties have agreed that in connection with the Initial Closing, PubCo, SPAC, and the Sponsor will enter into an Assignment, Assumption,
and Amendment Agreement, in form and substance reasonably acceptable to SPAC and Suncrete, with respect to the existing Registration Rights
Agreement, dated as of July 25, 2023, by and between SPAC and Sponsor. The parties have also agreed that in connection with the Acquisition
Closing, PubCo and certain members of Suncrete will enter into a Registration Rights Agreement in form and substance reasonably acceptable
to SPAC and Suncrete (the “Registration Rights Agreement”).

PIPE Subscription Agreements

Concurrently with the execution and delivery of
the Business Combination Agreement, SPAC and PubCo entered into subscription agreements (the “PIPE Subscription Agreements”)
with certain accredited investors and qualified institutional buyers (collectively, the “PIPE Investors”), pursuant to which,
among other things, PubCo agreed to issue and sell to the PIPE Investors, in a private placement to close immediately prior to the closing
of the Acquisition Merger, an aggregate of approximately $82.5 million in shares of PubCo Class A Common Stock and, in certain circumstances,
Pre-Funded Common Stock Purchase Warrants to purchase PubCo Class A Common Stock (the “PIPE Investment”). The foregoing description
of the PIPE Investment and the PIPE Subscription Agreements does not purport to be complete and is qualified in its entirety by the terms
and conditions of the form of PIPE Subscription Agreement, a copy of which is filed as Exhibit 10.3 hereto and is incorporated by reference
herein.

Dothan Agreements

In order to fund certain costs and expenses incurred
by SPAC, on September 8, 2025, Dothan Independent and Sponsor entered into a Subscription Agreement, pursuant to which, among other things,
Dothan Independent became a