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Suncrete (NASDAQ: RMIX) de-SPAC deal leaves sponsor with 7.7% stake

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13D

Rhea-AI Filing Summary

Haymaker Sponsor IV LLC and its managing members Andrew and Steven Heyer report beneficial ownership of securities tied to Suncrete, Inc. (RMIX) following completion of a SPAC business combination. The filing shows beneficial ownership of 3,639,267 securities, representing 7.7% of Suncrete’s Class A Common Stock.

The stake consists of 75,000 private placement warrants and 3,564,267 shares of Class A Common Stock, based on 46,879,768 Class A shares outstanding as of the closing date. The interest arose when Haymaker Acquisition Corp. 4 domesticated into Delaware and merged with Suncrete, issuing multiple share classes and rollover equity awards to Suncrete owners.

The reporting persons entered into an Amended and Restated Registration Rights Agreement and a Sponsor Support Agreement that include resale registration rights, voting commitments, anti-dilution waivers, lock-up restrictions, and a forfeiture of 333,333 shares. They state the investment is for investment purposes but may consider future strategic actions, including potential corporate transactions or changes in Suncrete’s capital structure or governance.

Positive

  • None.

Negative

  • None.

Insights

Filing details sponsor’s 7.7% RMIX stake and tight post‑merger lock-ups.

Haymaker Sponsor IV LLC and its managing members disclose 3,639,267 securities tied to Suncrete, Inc. (RMIX), equal to 7.7% of Class A shares outstanding. This stake stems from the April 2026 business combination between Suncrete and Haymaker Acquisition Corp. 4, including domestication and two merger steps.

The structure issued 14,117,894 Class A and 18,414,609 Class B shares to Suncrete members, plus 3,481,776 restricted Class A shares as rollover equity awards. Sponsor also received 179,227 Class A shares on note conversion and forfeited 333,333 Class A shares under a support agreement. These mechanics spread ownership across legacy Suncrete holders and the SPAC sponsor.

Registration rights and lock-up provisions are notable. The Amended and Restated Registration Rights Agreement provides for future Form S‑1 or S‑3 resales. The Sponsor Support Agreement imposes up to one year of transfer restrictions, with 33.33% of locked-up securities released at six and nine months after the April 8, 2026 closing. Future filings may show when holders begin using these registration and release rights.

Beneficial ownership 3,639,267 securities Haymaker Sponsor IV LLC stake in Suncrete Class A Common Stock
Ownership percentage 7.7% of Class A Based on 46,879,768 Class A shares outstanding at closing
Class A shares outstanding 46,879,768 shares Suncrete Class A Common Stock outstanding as of Closing Date
Suncrete Class A issued 14,117,894 shares Company Class A shares issued to Suncrete members at Acquisition Merger Effective Time
Restricted Class A (rollover) 3,481,776 shares Restricted Company Class A issued upon conversion of management incentive units
Suncrete Class B issued 18,414,609 shares Company Class B shares issued to Suncrete members at Acquisition Merger Effective Time
Class B to Dothan Independent 2,500,000 shares Company Class B Common Stock issued to Dothan Independent at Acquisition Merger Effective Time
Sponsor share forfeiture 333,333 shares PubCo Class A shares surrendered by Sponsor for no consideration at Initial Merger Effective Time
Business Combination Agreement financial
"pursuant to that certain Business Combination Agreement, dated October 9, 2025"
A business combination agreement is a detailed contract that lays out the terms for two companies to join together—covering price, how ownership will be split, the steps needed to close the deal, and what each side promises to do or avoid before closing. For investors it matters because the agreement determines potential changes in value, control, timing, and risk exposure—think of it like the playbook for a merger that shows who wins, who pays, and what could still derail the plan.
Domestication regulatory
"Haymaker transferred by way of continuation out of its jurisdiction of incorporation... and domesticated into the State of Delaware (the "Domestication")"
Domestication is the legal process by which a company changes its official ‘legal home’ from one place to another without creating a new business entity, similar to moving a household’s registration from one city to another while keeping the same people and possessions. It matters to investors because it can alter which laws, tax rules, reporting standards and shareholder rights apply, potentially affecting costs, governance and the value or liquidity of the company’s shares.
Amended and Restated Registration Rights Agreement financial
"entered into an Amended and Restated Registration Rights Agreement (the "A&R Registration Rights Agreement")"
Sponsor Support Agreement financial
"entered into an agreement (the "Sponsor Support Agreement") with Suncrete and the Issuer"
lock-up restrictions financial
"have also agreed to certain transfer restrictions with respect to their PubCo Class A Common Stock"
A lock-up restriction is a temporary rule that prevents company insiders, early investors and employees from selling their shares for a set period after a public offering. It matters to investors because it limits how many shares can enter the market immediately—like a cooling-off period after a big sale—and when the restriction ends a large increase in available shares can put downward pressure on the stock price or reveal insiders’ confidence in the company.





If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




schemaVersion:


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Consists of (i) 75,000 private placement warrants and (ii) 3,564,267 shares of the Issuer's Class A Common Stock.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Consists of (i) 75,000 private placement warrants and (ii) 3,564,267 shares of the Issuer's Class A Common Stock. Haymaker Sponsor IV LLC (the "Sponsor") is the record holder of the securities reported herein. Andrew R. Heyer is a managing member of the Sponsor and may be deemed to share beneficial ownership of the securities held of record by Sponsor. Mr. Heyer disclaims any such beneficial ownership except to the extent of his pecuniary interest therein.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Consists of (i) 75,000 private placement warrants and (ii) 3,564,267 shares of the Issuer's Class A Common Stock. Haymaker Sponsor IV LLC (the "Sponsor") is the record holder of the securities reported herein. Steven J. Heyer is a managing member of the Sponsor and may be deemed to share beneficial ownership of the securities held of record by Sponsor. Mr. Heyer disclaims any such beneficial ownership except to the extent of his pecuniary interest therein


SCHEDULE 13D


Haymaker Sponsor IV LLC
Signature:/s/ Andrew R. Heyer
Name/Title:Andrew R. Heyer, Managing Member
Date:04/15/2026
Andrew R. Heyer
Signature:/s/ Andrew R. Heyer
Name/Title:Andrew R. Heyer
Date:04/15/2026
Steven Heyer
Signature:/s/ Steven J.Heyer
Name/Title:/s/ Kate Mandrell, as conservator for Steven Heyer
Date:04/15/2026