Alleghany CORP /de Stock: price and insider trades · United States

Alleghany Corp /DE (ticker: Y) was a U.S.-listed insurance holding company traded on the NYSE in the United States before being acquired by Berkshire Hathaway in October 2022. For French-speaking investors in Europe, it is essential to understand that Y is no longer an independent listed equity security: Alleghany became a wholly owned subsidiary of Berkshire Hathaway once the deal closed. The company’s roots date back to 1929, and it was reincorporated in Delaware in 1984. Over time, Alleghany built a reputation as a disciplined specialty insurance platform rather than a broad-based mass-market insurer. Its former headquarters were in New York, reflecting the company’s long-standing ties to U.S. capital markets, brokers, and the specialty insurance ecosystem.

Alleghany’s core business model centered on specialty insurance and reinsurance, with additional capabilities in surety and fidelity-related coverage. In practical terms, the group focused on underwriting niche risks where pricing expertise, portfolio discipline, and long-term claims management mattered more than scale alone. This made Alleghany a meaningful participant in the U.S. property-casualty and reinsurance landscape, particularly for customers and intermediaries seeking tailored capacity for complex exposures. Rather than pursuing aggressive premium growth, the company historically emphasized underwriting quality, risk selection, and capital preservation.