Business Wire·Feb 4, 2026, 12:27 PM ET

AM Best Affirms Credit Ratings of MLMIC Insurance Company

AM Best affirmed MLMIC's Financial Strength Rating of A+ (Superior) and Long-Term Issuer Credit Rating of "aa-" (Superior) with a stable outlook.
Ratings reflect MLMIC's strongest balance sheet strength, adequate operating performance, limited business profile, & appropriate enterprise risk management.
Ratings are supported by financial backing from parent company National Indemnity Company (NICO), which is ultimately owned by Berkshire Hathaway Inc.
MLMIC's net operating results over the last seven years have been skewed by a 100% loss portfolio transfer & 85% quota share agreements with NICO executed after the 2018 acquisition.
Favorable reserve developments from prior accident years covered by the LPT do not benefit MLMIC's underwriting results, & pandemic-related court delays slowed reserve release recognition in recent years.
Gross underwriting results, total operating results, & consistent cash from operations remain aligned with historical trends, supporting an adequate operating performance assessment.
AM Best expects MLMIC's calendar-year underwriting results to improve over time & approximate historically stronger levels.
MLMIC concentrates its portfolio in medical professional liability (MPL) risks within New York, one of the most challenging & litigious markets.
Management has maintained MLMIC's leading market position & appropriate risk management capabilities despite underwriting cycles.