W. R. Berkley Corporation (WRB) Net Premiums Written by Segment

Shows the premiums Berkley keeps after ceding to reinsurers, revealing the company’s actual retained risk and exposure by segment. Growth in net written premiums signals stronger on‑balance sheet business and effective reinsurance strategy, while declines can indicate increased transfer of risk or reduced competitiveness.

Core Insurance is driving healthy, recurring top‑line expansion—peaking each June and reaching record net premiums—supported by solid renewal retention and modest rate increases that management highlighted. Reinsurance & Monoline Excess is episodic and under clear competitive stress: management called out heightened competition, MGU/delegated‑authority risks and erosion in reinsurance, meaning that premium growth is concentrated in the insurance book while the reinsurance arm may need to be scaled, repriced or de‑risked; watch underwriting margins, catastrophe volatility, and any shift in reinsurance strategy for earnings impact.