SCHEDULE: Berkley Family, MSI Cement Control; 25.14% Stake Reported

The Berkley family and related entities, along with MSI, report a combined beneficial ownership of 25.14% in W. R. Berkley Corporation, formalizing governance agreements.

Summary

• The Reporting Persons, comprising the Berkley family and related trusts/LLCs, beneficially own an aggregate of 95,551,144 shares of W. R. Berkley Corporation's common stock, representing approximately 25.14% of the outstanding shares.
• MSI Entities (MS&AD Insurance Group Holdings, Inc. and Mitsui Sumitomo Insurance Co., Ltd.) currently beneficially own 48,601,588 shares, which constitutes approximately 12.8% of the total outstanding common stock.
• A Framework Agreement, dated March 28, 2025, between Family Holdings (a Berkley family entity) and MSI, outlines MSI's commitment to vote its shares in accordance with Family Holdings' recommendations, with limited exceptions.
• Under the Framework Agreement, MSI gains the right to designate one acceptable director candidate to the Issuer's Board of Directors after March 15, 2026, provided it holds at least 12.5% of outstanding shares and all required regulatory approvals are obtained.
• Upon a 'Closing Date' (expected in Q1 2026), Family Holdings and MSI will enter into an Amended and Restated Limited Liability Company Agreement (LLC Agreement) for Symphony Partners, LLC, which will govern the voting of their respective shares.
• The Symphony Partners board will consist of two directors appointed by MSI and two by Family Holdings, with Family Holdings' appointee serving as chairperson and casting tie-breaking votes, effectively controlling the board's voting determinations.
• MSI intends to make additional purchases of Common Stock, aiming to reach a maximum of 15% of the 'Outstanding Agreement Shares' (397,680,471 shares) by March 31, 2026.

Sentiment

Score: 6

Explanation: The filing is largely neutral, detailing ownership structure and governance agreements. The formalization of a significant institutional investor's role and intent to increase stake could be seen as mildly positive for stability and strategic alignment, but it is not a performance-related announcement.

Positives

• The formalization of governance structures with a significant institutional investor like MSI gaining board representation could enhance strategic alignment and long-term stability for W. R. Berkley Corporation.
• Increased transparency regarding the beneficial ownership and voting control held by the Berkley family and MSI provides clarity to the market.
• MSI's stated intent to increase its stake to 15% signals continued confidence in the Issuer's prospects and strategic direction.

Risks

• The Framework Agreement includes customary standstill restrictions on MSI, which limit its ability to engage in certain activist behaviors or hostile actions against the Issuer.
• The effectiveness of MSI's director appointment and the full implementation of the LLC Agreement are contingent upon obtaining all required regulatory approvals, which introduces a degree of uncertainty.

Future Outlook

MSI expects to make additional purchases of Common Stock, aiming for a maximum of 15% of the 'Outstanding Agreement Shares' by March 31, 2026. MSI also intends to complete the transactions outlined in the Framework Agreement and enter into the LLC Agreement in the first quarter of 2026.

Industry Context

This filing highlights a significant strategic investment and governance arrangement between a major U.S. insurance company (W. R. Berkley) and a large Japanese insurance group (MSI). Such alliances can be common in the global insurance industry for market access, capital deployment, or strategic partnerships, though this filing focuses on ownership and voting control rather than operational collaboration.

Corporate Governance

Related Party Transactions

• The filing details the beneficial ownership of William R. Berkley (Chairman), Marjorie J. Berkley (spouse of Chairman), and W. Robert Berkley, Jr. (CEO), along with various family trusts and LLCs controlled by them, which are related parties to the company.
• The Framework Agreement and the upcoming LLC Agreement are significant arrangements between Family Holdings (controlled by the Berkley family) and MSI, impacting the governance and voting of the Issuer's shares.

Stakeholder Impact

• Shareholders: The formalization of voting agreements and board representation for a major institutional investor (MSI) could provide stability and strategic alignment, but also centralizes control over a significant portion of voting power.
• Management: The agreements solidify the Berkley family's influence over the company's governance and strategic direction through their control of Symphony Partners' board.

Next Steps

• MSI to make additional purchases of Common Stock, up to 15% of Outstanding Agreement Shares by March 31, 2026.
• Obtain required regulatory approvals for the Framework Agreement and LLC Agreement.
• MSI to designate an acceptable director candidate for appointment to the Board after March 15, 2026.
• Family Holdings and MSI to enter into the Amended and Restated Limited Liability Company Agreement (LLC Agreement) of Symphony Partners, LLC in the first quarter of 2026.

Key Dates

Keywords

W. R. Berkley Corporation, WRB, Schedule 13D, beneficial ownership, corporate governance, institutional investment, Mitsui Sumitomo Insurance, MS&AD Insurance, director appointment, voting agreement, Berkley family