Who owns BRK-B (BRK-B)
Which tracked institutional funds hold BRK-B, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BRK-B company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
602 tracked funds added or opened BRK-B while 1710 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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-B’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 1.1% of its own reported 13F book, while the median holder sizes it at 0.9% of theirs — a 0.2pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in BRK-B 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 2025-Q4 and 2026-Q1, across 4932 tracked filers holding BRK-B, 2169 increased or opened the position and 2299 reduced or closed it; 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-B between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 133
- VANGUARD CAPITAL MANAGEMENT LLC$56.3B
- VANGUARD PORTFOLIO MANAGEMENT LLC$11.4B
- VANGUARD FIDUCIARY TRUST CO$4.9B
- Vanguard Global Advisers, LLC$1.9B
- VANGUARD ASSET MANAGEMENT, Ltd$1.1B
- CIBC Bancorp USA Inc.$353M
Full exits 150
- VANGUARD GROUP INC$81.9B
- NewEdge Advisors, LLC$314M
- CIBC Private Wealth Group LLC$198M
- FORSTA AP-FONDEN$176M
- CIBC WORLD MARKETS CORP$176M
- Capitolis Liquid Global Markets LLC$170M
Largest adds
- FMR LLC$14.6B
- NORGES BANK$7.2B
- JPMORGAN CHASE & CO$1.3B
- H&H International Investment, LLC$777M
- DAVIS SELECTED ADVISERS$650M
- AMERIPRISE FINANCIAL INC$625M
Largest trims
- BlackRock, Inc.$3.0B
- GATES FOUNDATION TRUST$1.6B
- STATE STREET CORP$1.4B
- BARCLAYS PLC$528M
- ROYAL BANK OF CANADA$444M
- Bank of New York Mellon Corp$435M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 120,448,721 | $57.7B | 13.5% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 117,415,535 | $56.3B | 13.2% | 2026-Q1 |
| STATE STREET CORP added | 74,099,062 | $35.5B | 8.3% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 41,159,806 | $19.7B | 4.6% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 23,728,514 | $11.4B | 2.7% | 2026-Q1 |
| GATES FOUNDATION TRUST trimmed | 17,048,304 | $8.2B | 1.9% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 16,361,338 | $7.8B | 1.8% | 2026-Q1 |
| NORGES BANK trimmed | 9,570 | $7.6B | 1.8% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 15,487,316 | $7.4B | 1.7% | 2026-Q1 |
| FMR LLC added | 14,953,698 | $7.2B | 1.7% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 11,381,789 | $5.5B | 1.3% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 10,806,567 | $5.2B | 1.2% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 10,245,146 | $4.9B | 1.2% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 9,823,930 | $4.7B | 1.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 9,244,668 | $4.4B | 1.0% | 2026-Q1 |
| H&H International Investment, LLC added | 9,147,796 | $4.4B | 1.0% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 9,111,590 | $4.4B | 1.0% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 8,845,528 | $4.2B | 1.0% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 8,652,279 | $4.1B | 1.0% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 7,330,725 | $3.5B | 0.8% | 2026-Q1 |
| BARCLAYS PLC trimmed | 6,181,244 | $3.0B | 0.7% | 2026-Q1 |
| Legal & General Group Plc trimmed | 5,895,041 | $2.8B | 0.7% | 2026-Q1 |
| Nuveen, LLC added | 5,591,328 | $2.7B | 0.6% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 5,115,578 | $2.5B | 0.6% | 2026-Q1 |
| Invesco Ltd. added | 4,846,908 | $2.3B | 0.5% | 2026-Q1 |
| Amundi added | 4,707,966 | $2.3B | 0.5% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 4,372,927 | $2.2B | 0.5% | 2026-Q1 |
| UBS Group AG added | 4,563,946 | $2.2B | 0.5% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 4,235,650 | $2.0B | 0.5% | 2026-Q1 |
| Swiss National Bank added | 4,036,845 | $1.9B | 0.5% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 3,976,532 | $1.9B | 0.4% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 3,654,486 | $1.8B | 0.4% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 3,567,471 | $1.7B | 0.4% | 2026-Q1 |
| LPL Financial LLC added | 3,408,718 | $1.6B | 0.4% | 2026-Q1 |
| HSBC HOLDINGS PLC trimmed | 3,280,387 | $1.6B | 0.4% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 3,253,187 | $1.6B | 0.4% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 3,252,726 | $1.6B | 0.4% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 2,991,382 | $1.4B | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 2,848,515 | $1.4B | 0.3% | 2026-Q1 |
| Creative Planning trimmed | 2,837,844 | $1.4B | 0.3% | 2026-Q1 |
| California Public Employees Retirement System trimmed | 2,782,309 | $1.3B | 0.3% | 2026-Q1 |
| National Pension Service added | 2,732,608 | $1.3B | 0.3% | 2026-Q1 |
| Baird Financial Group, Inc. added | 2,666,968 | $1.3B | 0.3% | 2026-Q1 |
| Artisan Partners Limited Partnership added | 2,605,656 | $1.2B | 0.3% | 2026-Q1 |
| FLOSSBACH VON STORCH SE trimmed | 2,600,645 | $1.2B | 0.3% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ trimmed | 2,500,854 | $1.2B | 0.3% | 2026-Q1 |
| HighTower Advisors, LLC trimmed | 2,432,963 | $1.2B | 0.3% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 2,390,043 | $1.1B | 0.3% | 2026-Q1 |
| Assenagon Asset Management S.A. added | 2,307,666 | $1.1B | 0.3% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 2,252,290 | $1.1B | 0.3% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 2,071,999 | $993M | 0.2% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 1,948,207 | $934M | 0.2% | 2026-Q1 |
| Capital Research Global Investors trimmed | 1,928,765 | $924M | 0.2% | 2026-Q1 |
| TETRAD CORP | 1,923,123 | $922M | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 1,914,925 | $918M | 0.2% | 2026-Q1 |
| GQG Partners LLC trimmed | 1,896,646 | $909M | 0.2% | 2026-Q1 |
| FIRST MANHATTAN CO. LLC. trimmed | 1,803,600 | $864M | 0.2% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. added | 1,677,769 | $804M | 0.2% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC trimmed | 1,650,174 | $791M | 0.2% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 1,644,151 | $788M | 0.2% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 1,640,714 | $786M | 0.2% | 2026-Q1 |
| Caisse de depot et placement du Quebec added | 1,640,498 | $786M | 0.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,621,590 | $777M | 0.2% | 2026-Q1 |
| CITIGROUP INC added | 1,605,058 | $769M | 0.2% | 2026-Q1 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM trimmed | 1,586,796 | $760M | 0.2% | 2026-Q1 |
| Markel Group Inc. | 1,531,971 | $734M | 0.2% | 2026-Q1 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM trimmed | 1,476,623 | $708M | 0.2% | 2026-Q1 |
| Rothschild & Co Wealth Management UK Ltd trimmed | 1,466,548 | $703M | 0.2% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC trimmed | 1,466,382 | $703M | 0.2% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 1,376,112 | $659M | 0.2% | 2026-Q1 |
| Chevy Chase Trust Holdings, LLC trimmed | 1,336,767 | $641M | 0.2% | 2026-Q1 |
| Swedbank AB trimmed | 1,314,860 | $630M | 0.1% | 2026-Q1 |
| DIAMOND HILL CAPITAL MANAGEMENT INC trimmed | 1,272,427 | $610M | 0.1% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co trimmed | 1,255,631 | $604M | 0.1% | 2026-Q1 |
| Mariner, LLC added | 1,256,077 | $602M | 0.1% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 1,242,321 | $595M | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP added | 1,232,379 | $591M | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 1,193,500 | $572M | 0.1% | 2026-Q1 |
| US BANCORP \DE\ trimmed | 1,169,415 | $560M | 0.1% | 2026-Q1 |
| AVIVA PLC added | 1,140,248 | $546M | 0.1% | 2026-Q1 |
| BROWN BROTHERS HARRIMAN & CO added | 1,138,587 | $546M | 0.1% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 1,113,061 | $533M | 0.1% | 2026-Q1 |
| GARDNER RUSSO & QUINN LLC trimmed | 1,110,429 | $532M | 0.1% | 2026-Q1 |
| CHECK CAPITAL MANAGEMENT INC/CA added | 1,108,390 | $531M | 0.1% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 1,106,935 | $530M | 0.1% | 2026-Q1 |
| PNC FINANCIAL SERVICES GROUP, INC. added | 1,082,746 | $519M | 0.1% | 2026-Q1 |
| LONDON CO OF VIRGINIA added | 1,082,249 | $519M | 0.1% | 2026-Q1 |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC trimmed | 1,071,594 | $514M | 0.1% | 2026-Q1 |
| Korea Investment CORP added | 1,041,743 | $499M | 0.1% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 1,034,837 | $496M | 0.1% | 2026-Q1 |
| FIL Ltd trimmed | 1,017,790 | $488M | 0.1% | 2026-Q1 |
| BROWN ADVISORY INC trimmed | 1,012,512 | $485M | 0.1% | 2026-Q1 |
| CAPTRUST FINANCIAL ADVISORS added | 1,010,888 | $484M | 0.1% | 2026-Q1 |
| NATIXIS ADVISORS, LLC added | 979,988 | $470M | 0.1% | 2026-Q1 |
| Rathbones Group PLC trimmed | 978,041 | $469M | 0.1% | 2026-Q1 |
| Mesirow Financial Investment Management, Inc. added | 976,689 | $468M | 0.1% | 2026-Q1 |
| Cetera Investment Advisers added | 975,250 | $467M | 0.1% | 2026-Q1 |
| ROYAL LONDON ASSET MANAGEMENT LTD added | 954,605 | $457M | 0.1% | 2026-Q1 |
| CIBC WORLD MARKET INC. added | 909,220 | $436M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 157,088,863 | $79.0B | 18.5% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
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. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. 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.