Berkshire Hathaway Inc. (BRK.A) Jun 2026 Filing Analysis

Lubrizol reported significant increases in raw-material, energy, and supply-chain costs that began in late Q1 and continued through Q2 2026. Selling prices increased to address those cost pressures, consistent with the stated expectation. (1 met, 1 in progress across 2 tracked commitments)

The agreement commenced on April 1, 2026, and Berkshire reported $483 million of premiums written under it in the second quarter and first six months of 2026. The ten-year commitment remains active. (1 in progress across 1 tracked commitment)

Management will continue to direct insurance underwriters to decline business when premiums are considered inadequate for the risks, regardless of the effect on premium volume.

Manufacturing revenue grew 1.3% year over year in the first nine months of 2025, while pre-tax earnings grew 4.0%; its pre-tax margin increased from about 15.8% to 16.2%. In Q3, revenue increased 1.9% and pre-tax earnings rose 14.3%, reflecting stronger earnings growth than sales. The current-quarter evidence points to an improving margin profile, though year-to-date growth was more modest. (5 expanding across 5 engines)

Berkshire reported $354.3B of cash, cash equivalents, and Treasury bills in its insurance and other businesses at September 30, 2025, versus $359.2B in the June 2026 baseline, a 1.4% increase over time. Shareholders' equity was $698.2B at September 30, 2025; the baseline's $747.9B is not directly identical in scope or date, so this document supports a factual earlier-state comparison but not a precise like-for-like change claim for equity. (2 expanding, 1 stable, 1 contracting)

The filing continues to describe broad insurance and reinsurance operations across auto, commercial property and casualty, life, and health, serving customers and insurers worldwide. It reports approximately $176B of insurance float at September 30, 2025, but the later baseline reports $177.5B at June 30, 2026. That is a modest increase in the funding pool, not direct evidence that the competitive moat itself widened. (4 stable)

The filing describes BHE's regulated utility and energy rates as subject to regulatory approval and generally based on operating costs, taxes, and a return on capital. No later baseline evidence indicates a change in this regulatory position, so the regulatory moat is treated as stable rather than newly strengthened or weakened. (1 stable)

Insurance premiums earned increased 1.5% year over year in the first nine months of 2025, while after-tax underwriting earnings increased 1.5%. Insurance investment income declined 1.5%. The latest quarter showed stronger underwriting earnings than Q3 2024, but lower investment income; combined insurance earnings remain a mix of the two trends. (3 expanding, 1 contracting across 2 engines)

Service-group revenue grew 9.2% in the first nine months of 2025, while Q3 service-group revenue rose 12.1% year over year. These overlapping reporting periods do not provide a clean sequential-quarter growth-rate comparison, but the latest quarter’s reported growth is stronger than the year-to-date rate. The service segment is a material opportunity: $16.9 billion in nine-month revenue, with aviation, data-center/life-sciences construction services, and electronics distribution among the cited contributors. (5 accelerating across 5 signals, 2 leading indicators)

This ten-year agreement began April 1, 2026, and generated $483 million of premiums written in Q2 and in the first six months. It is a new source of business, with no comparable prior-year contract data; the broader property-and-casualty reinsurance premiums written were relatively unchanged for the first half. Classify the contract signal as new, not as a demonstrated accelerating trend. (1 new trend across 1 signal)

PacifiCorp’s wildfire litigation remains a major, unresolved financial risk. The existing reserve may not cover the final cost, and Berkshire says additional losses could materially harm the utility’s liquidity and financial condition. The Oregon Supreme Court’s review means the legal outcome remains unsettled. [BALANCE_SHEET]

Insurance claim reserves are estimates and may prove too low. Because the liability is very large, even a small increase in the ultimate cost of claims could materially reduce future earnings. [BALANCE_SHEET]

The September 2025 state was materially better than the later June 2026 baseline. GEICO's first-nine-month loss ratio improved to 70.8% from 72.6%, and underwriting earnings were nearly unchanged at $5.767 billion versus $5.747 billion. However, bodily-injury claim severity was already rising 11–13%, a developing pressure that preceded the later deterioration. Across the stated comparison, the overall risk intensified by the baseline period. (5 intensifying, 2 high-severity)

Insurance net investment income in the first nine months of 2025 was $9.441 billion, down 1.5% from $9.582 billion, and third-quarter net investment income fell 13.2%. Management attributed the pressure partly to lower short-term rates. The later baseline reports a 7.6% first-half decline in 2026, indicating that the income pressure intensified. (4 intensifying)

At September 2025, property-and-casualty claim liabilities were about $151.1 billion; the June 2026 baseline reports $152.9 billion. The liability therefore increased modestly, while the newer period still records substantial reductions in prior-year estimates. Given the scale of the reserves and continuing estimation uncertainty, the risk remains high and broadly stable, with a modest increase in the recorded balance. (3 intensifying, 2 easing)