Berkshire Hathaway Inc.

The full register, from 13F filings

The Register tab above is hand research: a dozen holders, each traced to the filing it came from. This asks the same question of the whole market for the quarter ended 31-mar-2026, where 4,904 managers reported a position. Broad where the research is deep, and shallow in the ways a 13F always is.

Built from 13F filings, which report US listed, long, US custodied positions only. A register from this source is a floor rather than a level: a holder's true position can be far larger, as BlackRock's ASML stake shows at 1.28m shares in a 13F against 26.3m in its 13G/A. Holdings held through derivatives, outside US custody, or below a manager's reporting obligation do not appear. Where a holder is marked as a family, its total sums several separate filing entities and describes something no single filing describes; the constituent entities and their share counts are listed so the total can be checked. That roll-up can legitimately exceed the family's own Schedule 13G, because a 13G is filed by one legal entity: Vanguard reports Alphabet through ten advisory entities, and The Vanguard Group Inc itself reported zero after its January 2026 disaggregation.

What the filings say against what the research found

Every holding above was also resolved directly from EDGAR through a precedence rule: the company's own filing outranks a 13D or 13G, which outranks a 13F, which outranks hand research. A 13F reports only US listed, long, US custodied positions, so it is a floor rather than a level. Where sources disagree the higher one leads and the lower is kept beside it.

No position here shows a material gap between sources.

• SC 13D/A 0001193125-24-265100 is pre-XML prose, not parsed
• SC 13G 0001193125-24-258561 is pre-XML prose, not parsed
• SC 13G/A 0001193125-24-258557 is pre-XML prose, not parsed
• 9 further pre-XML schedules not parsed

What a reader needs to know to read these numbers

• Berkshire is the extreme case in this database: it is mostly a portfolio. Its 30 Jun 2026 13F covers 89 line items across 29 issuers with a total reported value of 299,253,556,246 USD, filed 14 Aug 2026 by Berkshire and 14 affiliated managers including GEICO, General Re, National Indemnity and Warren Buffett personally. No confidential holdings were omitted from that filing.
• Cash position, which is not an equity holding but is the number a reader most needs: at 30 Jun 2026 Berkshire's insurance and other businesses held cash, cash equivalents and U.S. Treasury Bills, net of payables for unsettled purchases, of 359.2 billion USD. That is larger than the entire listed equity portfolio. Investments in equity and fixed maturity securities, excluding equity method investments, were 340.8 billion USD. Berkshire's own buyback policy will not let that cash and Treasury balance fall below 30 billion USD. Shareholders' equity was 747.9 billion USD at 30 Jun 2026, up 30.5 billion USD since 31 Dec 2025. Source: Q2 2026 10-Q, Management's Discussion and Analysis.
• Wholly owned operating subsidiaries are deliberately excluded from holdings, because a 100 per cent owned operating business is not a cross-holding. Named in the Q2 2026 10-Q: BNSF Railway, Berkshire Hathaway Energy (which itself wholly owns PacifiCorp and HomeServices of America), GEICO, General Re, National Indemnity, Medical Protective, Pilot Travel Centers, McLane, Marmon, Clayton Homes, Berkshire Hathaway Automotive, Nebraska Furniture Mart, See's Candies, TTI, IPS, Precision Castparts and Detlev Louis. Two more were bought inside the current window: OxyChem for approximately 9.4 billion USD on 2 Jan 2026, and Taylor Morrison Home Corporation for approximately 6.8 billion USD cash on 24 Jul 2026, after the 30 Jun quarter end.
• Dual-class structure: each Class A share carries one vote and 1,500 times the economic interest of a Class B share; each Class B share carries one ten thousandth of a Class A vote. Class A converts into 1,500 Class B at the holder's option; Class B never converts into Class A. On a Class B equivalent basis there were 2,140,710,161 shares at 29 Jul 2026, made up of 488,450 Class A and 1,408,035,161 Class B. Berkshire itself reports the same total the other way round, as 1,431,693 equivalent Class A shares at 30 Jun 2026.
• Post-Buffett leadership is now fact, not succession planning. The 2026 proxy states that Gregory E. Abel, age 63, became Berkshire's Chief Executive Officer on 1 January 2026, succeeding Warren Buffett, who continues as Chairman of the Board. Abel personally holds only 249 Class A and 2,363 Class B shares, and disclaims beneficial interest in most of those. Buffett remains the largest shareholder with 196,317 Class A and 1,114 Class B shares, 38.4 per cent of Class A, 30.2 per cent of aggregate voting power and 13.7 per cent of aggregate economic interest as of 4 Mar 2026. Buffett has a voting agreement with Berkshire: if his combined voting power ever exceeds 49.9 per cent of the total, he votes the excess proportionally with other shareholders. So control of the company sits with the Chairman, not the CEO.
• Two figures for Buffett's voting power appear in the same proxy statement. The beneficial ownership table says 30.2 per cent of aggregate voting power. The corporate governance section says approximately 30.0 per cent. Both are 4 Mar 2026 measurements from Berkshire. This file records 30.2 per cent as the table figure and flags the 30.0 per cent narrative figure here rather than choosing silently.
• Register percentages use one consistent denominator: 2,140,710,161 Class B equivalent shares at 29 Jul 2026, so pct_of_company is economic interest, not voting power. Institutional stakes look much larger when quoted against Class B alone, which is how the proxy quotes them: Vanguard 11.4 per cent of Class B, BlackRock 8.8 per cent, State Street 5.3 per cent. Conflating those with percentage of the company is the classic error here. Buffett's 13.7 per cent economic interest against 30.2 per cent of the votes is the same distinction seen from the other side.
• Register share counts are Class B equivalents, computed as Class B shares plus 1,500 times Class A shares. Buffett: 196,317 A plus 1,114 B equals 294,476,614. Vanguard: 157,103,196 B plus 3,886 A. State Street: 75,747,788 B plus 268 A. FMR: 10,400,007 B plus 14,533 A. BlackRock is Class B only because the proxy discloses no Class A figure for it. The Vanguard total reconciles exactly to the 157,103,196 Class B shares the proxy attributes to Vanguard, which is a clean cross-check between two independent documents.
• The register is not a full picture at one date. Vanguard's most recent 13F available on EDGAR at the time of research reported 31 Dec 2025, and the BlackRock figure is the 31 Dec 2025 number Berkshire cites in its proxy, because BlackRock's current filings sit under a different CIK. State Street, FMR and the Gates Foundation Trust are 30 Jun 2026. Mixing those dates is unavoidable and is why every row carries its own as_of.
• Alphabet is Berkshire's single largest equity position when the two share classes are combined: 78,791,167 Class A plus 27,188,433 Class C, 105,979,600 shares worth 37,764,088,383 USD at 30 Jun 2026. Berkshire's own 10-Q confirms the five largest holdings at 30 Jun 2026 were Alphabet, American Express, Apple, Bank of America and Coca-Cola, together 66 per cent of the aggregate fair value of its equity securities, up from 65 per cent at 31 Dec 2025.
• Berkshire also owns Occidental non-voting Cumulative Perpetual Preferred Stock with an aggregate liquidation value of approximately 8.5 billion USD at 30 Jun 2026, accruing dividends at 8 per cent per annum and redeemable at Occidental's option from 2029 at 105 per cent of liquidation value, plus warrants to buy up to 83.9 million Occidental common shares at 59.59 USD each. These are carried at fair value as equity securities, are not in-substance common stock, and are not included in the 26.7 per cent common stake above. Full exercise of the warrants would raise Berkshire's Occidental common ownership materially.
• Berkshire's equity method investments total 19,948 million USD of carrying value at 30 Jun 2026: Kraft Heinz 8,760 million, Occidental 10,727 million, Berkadia 461 million. Kraft Heinz and Occidental appear in both the 13F at fair value and the 10-Q at carrying value, and those two numbers differ. This file uses the 13F fair values for the two listed names and the carrying value for private Berkadia, with the difference flagged in each method_note.
• Market capitalisation cross-check: 2,140,710,161 Class B equivalent shares times the BRK.B close of 504.03 USD on 14 Aug 2026 gives 1.079 trillion USD, against the 1.08 trillion USD reported by the price source. 16 Aug 2026 is a Sunday, so 14 Aug 2026 is the last close. A second, independent read on the Class A price comes from FMR's 30 Jun 2026 13F, which valued 11,112 Class A shares at 8,321,221,200 USD, or 748,850 USD per Class A share, 1,496 times its 500.39 USD Class B mark in the same filing.