SCHEDULE: W. R. Berkley Discloses 7.2% Stake in Haymaker Acquisition Corp. 4

W. R. Berkley Corporation and its subsidiary Berkley Insurance Company have disclosed a passive 7.2% ownership stake in Haymaker Acquisition Corp. 4.

Summary

• W. R. Berkley Corporation and Berkley Insurance Company jointly reported beneficial ownership of 1,680,012 Class A Ordinary Shares of Haymaker Acquisition Corp. 4.
• This ownership represents 7.2% of the Class A Ordinary Shares outstanding.
• The shares are held with shared voting power and shared dispositive power.
• The filing is a Schedule 13G, indicating that the shares were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.
• The event date requiring this filing was September 30, 2025, with the statement signed on November 7, 2025.

Sentiment

Score: 5

Explanation: This is a factual disclosure of ownership, not an operational or financial report, thus it carries a neutral sentiment. It simply reports a passive stake.

Future Outlook

NA

Management Comments

• Richard M. Baio, Executive Vice President and Chief Financial Officer of W. R. Berkley Corporation, certified that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.

Industry Context

This Schedule 13G filing indicates a significant passive investment by an insurance holding company in a Special Purpose Acquisition Company (SPAC). Such filings are routine disclosures for institutional investors crossing the 5% ownership threshold, signaling a long-term, non-activist position. Haymaker Acquisition Corp. 4 is a SPAC, typically formed to merge with or acquire a private company, and institutional ownership is common in these vehicles.

Stakeholder Impact

• Shareholders of Haymaker Acquisition Corp. 4 will note that W. R. Berkley Corporation and Berkley Insurance Company are significant passive investors, holding 7.2% of the Class A Ordinary Shares.

Key Dates

Keywords

Haymaker Acquisition Corp. 4, W. R. Berkley Corporation, Berkley Insurance Company, Schedule 13G, Class A Ordinary Shares, Beneficial Ownership, Passive Investment, SPAC