Who owns Berkshire Hathaway (BRK-A)
Which tracked institutional funds hold BRK-A, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings (the quarterly holdings report each institutional manager files). See BRK-A company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F season: the 2026-Q3 13F deadline is 45 days after the quarter ends (2026-11-14). We have loaded 2 so far; most arrive with the SEC’s quarterly bulk 13F data set, which we load after the SEC publishes it, so this count is not how many funds have filed.
How tracked funds are positioned
117 tracked funds added shares of BRK-A or opened a position while 212 sold shares or exited between 2026-Q1 and 2026-Q2 — the funds were divided. A split like this shows that funds disagreed; the filings do not say why.
Adds and trims are measured by share count, adjusted for stock splits; the dollar figure beside a change is the value of the shares added or sold at the newer filing's price, shown for context only. 37 funds had no complete filing on file for 2026-Q1 or 2026-Q2: no 13F stored, a filing under a fifth the size of the quarter beside it (usually an amendment stored on its own, sometimes a fund that sold most of its holdings), or a first 13F, as when a book moves to a new CIK. They are left out of the new buyers, exits and changes. Only BRK-A shares are counted, each change valued at BRK-A's own price; BRK-B is counted on its own page. 3 funds whose filings for these two quarters could not be tied to one share class are left out. 3 funds that moved between share classes, or whose rows were relabelled from one class to the other, are not counted as new buyers or exits.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
BRK-A’s largest tracked holder by dollar value, FMR LLC, sizes it at 0.5% of its own reported 13F book, while the median holder sizes it at 0.7% of theirs — a 0.2 percentage-point gap the other way — the median holder sizes BRK-A more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in BRK-A divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 1,339 tracked filers holding BRK-A, 117 increased or opened the position and 212 reduced or closed it, by share count adjusted for splits; over the same quarter, open-market insider Form 4s were net purchases.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in BRK-A between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence.
Adds and trims are measured by share count, adjusted for stock splits; the dollar figure beside a change is the value of the shares added or sold at the newer filing's price, shown for context only. 37 funds had no complete filing on file for 2026-Q1 or 2026-Q2: no 13F stored, a filing under a fifth the size of the quarter beside it (usually an amendment stored on its own, sometimes a fund that sold most of its holdings), or a first 13F, as when a book moves to a new CIK. They are left out of the new buyers, exits and changes. Only BRK-A shares are counted, each change valued at BRK-A's own price; BRK-B is counted on its own page. 3 funds whose filings for these two quarters could not be tied to one share class are left out. 3 funds that moved between share classes, or whose rows were relabelled from one class to the other, are not counted as new buyers or exits.
New buyers 43
- Capital World Investors$306M
- Bank Julius Baer & Co. Ltd, Zurich$30M
- Citadel Advisors LLC$29M
- NewEdge Advisors, LLC$19M
- Brighton Jones LLC$18M
- J.W. Cole Advisors, Inc.$10M
Full exits 47
- Capital Research Global Investors$165M
- Hollencrest Capital Management$68M
- Bellecapital International Ltd.$9M
- Naman Capital Ltda$7M
- Sanders Morris Harris LLC$6M
- Bradyco, Inc.$5M
Largest adds
- BlackRock, Inc.$165M
- Fayez Sarofim & Co$94M
- Quantinno Capital Management LP$60M
- IMC-Chicago, LLC$43M
- Morgan Stanley$43M
- Neuberger Berman Group LLC$31M
Largest trims
- FMR LLC$1.85B
- Clearbridge Investments, LLC$0.13B
- First Manhattan Co. Llc.$0.12B
- Mawer Investment Management Ltd.$0.07B
- Northern Trust Corp$0.07B
- State of Wisconsin Investment Board$0.05B
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). The table lists 100 of the 1,346 tracked holders; the rest count toward the figures above but are not listed. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. 2 rows marked price check are shown as filed but listed last and left out of “% of value” and the totals above: the value per share is more than three times off the other holders’, most likely another share class or a unit error in the filing.
Ownership over time
Tracked institutional holder count and total shares held by filing quarter, 2016-Q4 to 2026-Q2 (independent scales). 3 earlier quarters with filings from under a quarter of the usual filers are left off.
2016-Q4: 1 holders, 19 shares. 2026-Q2: 1,339 holders, 80K shares. Fewest holders 1 (2016-Q4); most 1,371 (2025-Q1).
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Shares listed as BRK-B are counted on its own page: every figure here counts BRK-A shares alone, and each change is valued at BRK-A’s own price, so one share class is never added to another or priced at another’s price. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.