BERKSHIRE HATHAWAY INC (BRK-B)
SEC filings, insider trading & institutional ownership from EDGAR.
Berkshire Hathaway Inc., a Delaware-domiciled holding company headquartered in Omaha, Nebraska, operates a diverse portfolio of businesses managed under a highly decentralized structure, with its Chief Executive Officer responsible for major capital allocation and investment decisions and evaluating operating performance. Its core operations span insurance (both primary and reinsurance), freight rail transportation, and utility and energy generation and distribution, alongside numerous manufacturing, service, and retail businesses. At the end of 2025, Berkshire employed approximately 387,800 people worldwide, with about 80% in the U.S. and 19% unionized; human capital practices, including compensation, safety, training, and hiring, are managed independently by each subsidiary.
The insurance segment, employing roughly 42,600 people, is central to Berkshire's operations and includes GEICO (private passenger auto insurance sold via direct response and agency channels, ranked third-largest U.S. auto insurer with about 11.6% market share), the Berkshire Hathaway Primary Group (a collection of independently managed insurers such as NICO Primary, BHHC, BHSI, RSUI, CapSpecialty, MedPro, MLMIC, USLI, BH Direct, and GUARD, covering commercial, workers' compensation, healthcare liability, and specialty lines), and the Berkshire Hathaway Reinsurance Group (comprising NICO Group, General Re Group, and TransRe Group, offering global property/casualty and life/health reinsurance, including retroactive reinsurance and periodic payment annuities through BHLN). Berkshire's insurers maintain exceptionally strong capital positions, with combined U.S. statutory surplus of approximately $333 billion at year-end 2025, and are rated AA+ by Standard & Poor's and A++ by A.M. Best. The company operates under a comprehensive Code of Conduct and Ethics and is subject to extensive state, federal, and international insurance regulation, including oversight by the Nebraska Department of Insurance as lead supervisor of its insurance group, participation in supervisory colleges with regulators from Delaware, Connecticut, Germany, Ireland, and the U.K., and compliance with NAIC standards, group capital calculations, and the Terrorism Risk Insurance Act (TRIA), under which Berkshire's aggregate deductible is expected to be approximately $2.5 billion in 2026.
Non-U.S. insurance operations are conducted through subsidiaries in Germany, Ireland, the U.K., Australia, South Africa, and other countries, subject to varying local regulatory regimes. Competition in the insurance industry is based on price, service, financial strength, and underwriting consistency, with Berkshire's capital strength serving as a key differentiator from competitors such as State Farm, Progressive, Allstate, and USAA.
AI-summarized from Item 1 (Business) of the company's most recent 10-K filing.
Financials
As reported to the SEC via XBRL, no adjustments
| Net margin | 18.1% |
Latest filings
10-K, 10-Q, 8-K, Form 4 & 13D/G. Sourced directly from SEC EDGAR
| Form | Filed | Accession |
|---|---|---|
| 4O'Sullivan Michael J. | Aug 13, 2026 | 0001193125-26-349574EDGAR |
| 8-KAIBerkshire Hathaway announced its second quarter and first six months 2026 earnings via press release on August 8, 2026, furnished as an exhibit to this 8-K filing. | Aug 11, 2026 | 0001193125-26-344495EDGAR |
| 10-Q | Aug 10, 2026 | 0001193125-26-341032EDGAR |
| 4BUFFETT WARREN E | Aug 4, 2026 | 0001193125-26-333151EDGAR |
| 4BUFFETT WARREN E | Jul 15, 2026 | 0001193125-26-304843EDGAR |
| SC 13D/AamendedWarren E. Buffett | Jul 15, 2026 | 0001193125-26-304838EDGAR |
| 4Jain Ajit | Jul 2, 2026 | 0001728451-26-000002EDGAR |
| 4BUFFETT WARREN E | May 26, 2026 | 0001193125-26-239886EDGAR |
Insider trading
From Form 4 filings
| Insider | Date | Type |
|---|---|---|
| O'Sullivan Michael J. | Aug 12, 2026 | Buy |
| BUFFETT WARREN E | Jul 31, 2026 | Sell |
| BERKSHIRE HATHAWAY INC | Jul 31, 2026 | Sell |
| BUFFETT WARREN E | Jul 14, 2026 | Gift |
| BUFFETT WARREN E | Jul 14, 2026 | Acquire (C) |
Latest 10-Q takeaways
filed Aug 10, 2026The filing presents strong overall earnings growth (net earnings more than doubled year-over-year) driven by BNSF, BHE, and manufacturing/service/retailing segments, but the tone is predominantly factual and backward-looking, with hedged language around macroeconomic/geopolitical uncertainty and moderate risk disclosures related to catastrophes, litigation, and rate volatility. Automated screens flagged 1 potential red flag, including 1 high-severity item.
Generated by Scrutar's AI from BRK-B's SEC filings, please verify claims. Not investment advice.
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Peers identified from BRK-B's own SEC filings.
Data as of Aug 28, 2026Source: SEC EDGAR.