Cincinnati Specialty Underwriters Insurance Co.
Cincinnati Specialty Underwriters Insurance Company (CSU) is a wholly owned, nonadmitted subsidiary of Cincinnati Insurance Company, part of the Cincinnati Financial Corporation group. Headquartered in Fairfield, Ohio, and domiciled in Delaware, CSU specializes in excess and surplus lines insurance products offered through independent agents across the U.S. The firm was incorporated in 2007 and supports Cincinnati Insurance's broader product offerings. Employee count is not disclosed for the subsdiary, but its parent company, Cincinnati Financial, has over 5,000 employees and CSU operates as a specialized unit within that structure. CSU serves a wide range of commercial clients seeking property and casualty solutions not available in the standard market.
Investment Strategy
Cincinnati Specialty Underwriters Insurance Company focuses on underwriting excess and surplus lines insurance, targeting risks that are unique, complex, or not adequately handled by standard insurance markets. The company uses proprietary risk assessment and experienced underwriting teams to select profitable business in niche areas, operating through independent agents. The firm emphasizes strong financial stability, disciplined risk evaluation, and market responsiveness, while leveraging its affiliation with Cincinnati Insurance for distribution and operational efficiencies.
Latest 13F Filing Activity
Cincinnati Specialty Underwriters Insurance Co. filed their most recent 13F report on Jun 30, 2025 disclosing 36 equity positions with a total 13F market value of $381M. The fund increased holdings in Broadcom Ord, Microsoft Ord, JPMorgan Chase Ord among other positions. Cincinnati Specialty Underwriters Insurance Co. reduced exposure to Apple Ord, Abbvie Ord, RPM Ord among others.
Top Holdings
Equity Positions (36)
| Ticker | Security | Weight | Market Value | Shares | Avg Cost | Price | Change (QoQ) |
|---|---|---|---|---|---|---|---|
A AVGO | BROADCOM ORD | 28.21% | $107.4M | 389,500 | $24.26 | $275.65 | +$42.2M |
A AAPL | APPLE ORD | 16.61% | $63.2M | 308,000 | $14.61 | $205.17 | -$5.2M |
M MSFT | MICROSOFT ORD | 7.84% | $29.8M | 60,000 | $34.36 | $497.41 | +$7.3M |
E ENB | ENBRIDGE ORD | 5.28% | $20.1M | 443,664 | $37.68 | $45.32 | +$448.1K |
A ADP | AUTOMATIC DATA PROCESSING ORD | 3.81% | $14.5M | 47,000 | $60.93 | $308.40 | +$134.9K |