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Jack Ringwalt

Origin of Relationship

Warren Buffett acquired National Indemnity Company from Jack Ringwalt in 1967 for $8.6 million in cash, following a 15-minute negotiation. Ringwalt, who had founded the company in 1940, agreed to stay on to run the business under Berkshire's ownership.

Major Milestones

  • 1940: Founded National Indemnity Company in Omaha, Nebraska, with his brother Arthur.
  • 1967: Sold National Indemnity to Berkshire Hathaway, continuing as President.
  • 1969: Delivered record underwriting profits, establishing NICO as the primary cash engine of the group.
  • 1970: Guided the traditional auto insurance operations to a combined ratio of ~100% during a period of market tightening.
  • 1971: Successfully managed the influx of direct volume from standard market capacity shortages while maintaining strict underwriting standards.
  • 1973: Retired as President of National Indemnity, succeeded by his long-time underwriting partner Phil Liesche.
  • 1978: Succeeded by Liesche, but Buffett noted in the annual letter that NICO's outstanding results: "reflect credit not only upon present managers, but equally upon the business talents of Jack Ringwalt, founder of National Indemnity, whose operating philosophy remains etched upon the company."

Strategic Importance

Jack Ringwalt is one of the most influential operational figures in Berkshire's history. He taught Buffett the foundational lesson of insurance: pricing discipline is far more important than premium volume. Ringwalt's willingness to let premium volume shrink when industry rates were inadequate—and his refusal to set arbitrary annual growth goals—directly shaped Buffett’s concepts of the Underwriting Cycle and Insurance Underwriting Discipline. This philosophy enabled Berkshire to generate billions in low-cost Insurance Float over the subsequent decades, funding the acquisition of its modern empire.

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