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Funds Holding Berkshire Hathaway Inc
Every registered fund lists what it holds each quarter. These are the ones reporting a position in Berkshire Hathaway Inc, ordered by how much of each fund the position represents rather than by its size.
Institutional holders of BRK.B →Funds holding
200
as of 2026-07-31
Reported value
$16.4B
summed across funds
Fund families
89
named trusts
Largest conviction
12.96%
13 above 5% of a fund
Largest share of a fund
A small position that is a large part of its fund says more than a large one that is a rounding error.
| Fund | Of the fund |
|---|---|
| iShares U.S. Financial Services ETFiShares Trust550.6K sh$281.6M | 12.96% |
| iShares U.S. Financials ETFiShares Trust983.4K sh$503.1M | 11.35% |
| Direxion Daily BRKB Bull 2X SharesDirexion Shares ETF Trust8.7K sh$4.5M | 10.86% |
| VistaShares Target 15 Berkshire Select Income ETFTidal Trust III195.6K sh$100.1M | 10.11% |
| FINANCIALS ULTRASECTOR PROFUNDProFunds1.6K sh$816.9K | 8.43% |
| AMG River Road Large Cap Value Select FundAMG Funds I7K sh$3.6M | 8.35% |
| Direxion Daily Financial Bull 3X SharesDirexion Shares ETF Trust361.3K sh$184.8M | 7.87% |
| Fidelity MSCI Financials Index ETFFIDELITY COVINGTON TRUST365.3K sh$186.8M | 7.87% |
| AMG River Road Focused Absolute Value FundAMG Funds IV5.6K sh$2.9M | 6.30% |
| VistaShares Target 15 USA Quality Income ETFTidal Trust III2.2K sh$1.1M | 5.35% |
| Davis Select Financial ETFDavis Fundamental ETF Trust49.2K sh$25.2M | 5.25% |
| Hennessy Large Cap Financial FundHennessy Funds Trust3K sh$1.5M | 5.18% |
| Rainwater Equity ETFEA Series Trust1.7K sh$888.5K | 5.11% |
| Hennessy Equity and Income FundHennessy Funds Trust3.2K sh$1.7M | 4.33% |
| NYLIM WMC Enduring Capital FundNYLIM FUNDS28K sh$14.3M | 4.20% |
| Davis Select U.S. Equity ETFDavis Fundamental ETF Trust102K sh$52.2M | 4.11% |
| Davis Research FundDAVIS NEW YORK VENTURE FUND INC6.7K sh$3.5M | 3.90% |
| ALPS Global Opportunity FundFINANCIAL INVESTORS TRUST3.3K sh$1.7M | 3.88% |
| Becker Equity FundProfessionally Managed Portfolios7.8K sh$4M | 3.70% |
| Allspring Special Large Cap Value FundALLSPRING FUNDS TRUST141.4K sh$72.3M | 3.55% |
| Allspring Large Cap Value FundALLSPRING FUNDS TRUST10.7K sh$5.5M | 3.55% |
| NPF Core Equity ETFElevation Series Trust44.5K sh$22.8M | 3.50% |
| Allspring Special Large Value ETFALLSPRING EXCHANGE-TRADED FUNDS TRUST14.9K sh$7.6M | 3.49% |
| BBH Select Large Cap ETFBBH Trust35.5K sh$18.2M | 3.41% |
| COPLEY INVESTMENT FUNDCentaur Mutual Funds Trust7.8K sh$4M | 3.34% |
| Infrastructure FundJohn Hancock Investment Trust88.7K sh$45.4M | 3.31% |
| BNY Mellon Dynamic Value ETFBNY Mellon ETF Trust II117.3K sh$60M | 3.26% |
| FlexShares STOXX US ESG Select Index FundFlexShares Trust7.8K sh$4M | 3.01% |
| iShares Morningstar Value ETFiShares Trust72.4K sh$37M | 2.80% |
| Goldman Sachs Large Cap Value Insights FundGoldman Sachs Trust41.6K sh$21.3M | 2.79% |
| Dimensional U.S. Marketwide Value ETFDimensional ETF Trust821.5K sh$420.2M | 2.72% |
| SA Large Cap Growth Index PortfolioSUNAMERICA SERIES TRUST38.8K sh$19.8M | 2.69% |
| LARGE-CAP GROWTH PROFUNDProFunds879 sh$449.6K | 2.68% |
| JPMorgan U.S. Large Cap Value Plus ETFJ.P. Morgan Exchange-Traded Fund Trust1.3K sh$661.9K | 2.62% |
| Suncoast Select Growth ETFEA Series Trust3.2K sh$1.6M | 2.61% |
| Fidelity Series Large Cap Value Index FundFidelity Salem Street Trust628.7K sh$321.6M | 2.57% |
| Fidelity Large Cap Value Index FundFidelity Salem Street Trust735.8K sh$376.4M | 2.57% |
| Schwab U.S. Large-Cap Value Index FundSCHWAB CAPITAL TRUST57.3K sh$29.3M | 2.56% |
| Nuveen Large Cap Value Index FundTIAA-CREF Funds679.9K sh$347.8M | 2.56% |
| Pacer PE/VC ETFPacer Funds Trust111 sh$56.8K | 2.36% |
| Avos Global Equities ETFEA Series Trust5K sh$2.5M | 2.34% |
| Invesco S&P 500 Top 50 ETFInvesco Exchange-Traded Fund Trust480.2K sh$245.7M | 2.33% |
| Fidelity Founders FundFidelity Concord Street Trust9.7K sh$5M | 2.31% |
| Invesco S&P 500 Pure Growth ETFInvesco Exchange-Traded Fund Trust87.8K sh$44.9M | 2.24% |
| The Value FundCOMMERCE FUNDS9.8K sh$5M | 2.22% |
| SA Franklin Systematic U.S. Large Cap Value PortfolioSUNAMERICA SERIES TRUST25K sh$12.8M | 2.10% |
| WESTWOOD QUALITY VALUE FUNDUltimus Managers Trust3.1K sh$1.6M | 2.10% |
| North Country Large Cap Equity FundNorth Country Funds5.1K sh$2.6M | 2.09% |
| ClearBridge Large Cap Value FundLegg Mason Partners Investment Trust95.3K sh$48.8M | 2.01% |
| FlexShares STOXX Global ESG Select Index FundFlexShares Trust4.3K sh$2.2M | 1.99% |
| Steward Covered Call Income FundSteward Funds Inc4.8K sh$2.5M | 1.97% |
| PeakShares RMR Prime Equity ETFNORTHERN LIGHTS FUND TRUST II3.5K sh$1.8M | 1.94% |
| Fidelity Hedged Equity ETFFidelity Greenwood Street Trust35.2K sh$18M | 1.94% |
| Fidelity Dynamic Buffered Equity ETFFidelity Greenwood Street Trust893 sh$456.8K | 1.91% |
| Fidelity Yield Enhanced Equity ETFFidelity Greenwood Street Trust8.1K sh$4.2M | 1.90% |
| FlexShares US Quality Low Volatility Index FundFlexShares Trust6K sh$3.1M | 1.89% |
| Davis Select Worldwide ETFDavis Fundamental ETF Trust22.4K sh$11.5M | 1.87% |
| Fidelity Value Factor ETFFidelity Covington Trust48.5K sh$24.8M | 1.86% |
| iShares MSCI USA Quality Factor ETFiShares Trust1.7M sh$858.3M | 1.84% |
| Fidelity Momentum Factor ETFFidelity Covington Trust32.4K sh$16.6M | 1.83% |
| Hartford US Quality Growth ETFLattice Strategies Trust1.8K sh$898.3K | 1.83% |
| Invesco RAFI US 1000 ETFInvesco Exchange-Traded Fund Trust349.4K sh$178.7M | 1.82% |
| THE U.S. LARGE CAP VALUE SERIESDFA INVESTMENT TRUST CO1.1M sh$560.7M | 1.82% |
| Equity Income FundRUSSELL INVESTMENT CO5.5K sh$2.8M | 1.81% |
| Dimensional US Large Cap Value ETFDimensional ETF Trust239.1K sh$122.3M | 1.81% |
| Fidelity Low Volatility Factor ETFFidelity Covington Trust50.2K sh$25.7M | 1.81% |
| Dimensional VA U.S. Large Value PortfolioDFA INVESTMENT DIMENSIONS GROUP INC31K sh$15.9M | 1.79% |
| Fidelity Hedged Equity FundFidelity Greenwood Street Trust25.7K sh$13.2M | 1.71% |
| Pacer MSCI World Industry Advantage ETFPacer Funds Trust37 sh$18.9K | 1.71% |
| JPMorgan U.S. Quality Factor ETFJ.P. Morgan Exchange-Traded Fund Trust274.4K sh$140.3M | 1.71% |
| Dunham Large Cap Value FundDunham Funds7.7K sh$3.9M | 1.69% |
| YOKE Core ETFEA Series Trust7.6K sh$3.9M | 1.68% |
| American Conservative Values ETFETF Opportunities Trust5K sh$2.6M | 1.68% |
| Steward Large Cap Value FundSteward Funds Inc5K sh$2.6M | 1.68% |
| Balanced FundJohn Hancock Investment Trust221.7K sh$113.4M | 1.64% |
| PACE Large Co Value Equity InvestmentsPACE SELECT ADVISORS TRUST25.5K sh$13.1M | 1.63% |
| KOVITZ CORE EQUITY ETFValued Advisers Trust43.5K sh$22.3M | 1.56% |
| Steward Values Enhanced Large Cap FundSteward Funds Inc9.6K sh$4.9M | 1.51% |
| Aptus Collared Investment Opportunity ETFETF Series Solutions68.1K sh$34.8M | 1.48% |
| Aptus Drawdown Managed Equity ETFETF Series Solutions8.5K sh$4.3M | 1.48% |
| Invesco S&P 500 BuyWrite ETFInvesco Exchange-Traded Fund Trust10.3K sh$5.3M | 1.48% |
| JPMORGAN BETABUILDERS U.S. EQUITY ETFJ.P. Morgan Exchange-Traded Fund Trust256.1K sh$131M | 1.47% |
| iShares MSCI USA Min Vol Factor ETFiShares Trust680.1K sh$347.9M | 1.47% |
| Indexperts Quality Earnings Focused ETFSPINNAKER ETF SERIES1.1K sh$569.9K | 1.47% |
| JLens 500 Jewish Advocacy U.S. ETFEA Series Trust7.5K sh$3.8M | 1.46% |
| Putnam Core Equity FundPutnam Funds Trust178.3K sh$91.2M | 1.46% |
| U.S. LARGE COMPANY PORTFOLIODIMENSIONAL INVESTMENT GROUP INC407.8K sh$208.6M | 1.46% |
| Pacer Trendpilot US Large Cap ETFPacer Funds Trust92.7K sh$47.4M | 1.45% |
| iShares Morningstar U.S. Equity ETFiShares Trust36.2K sh$18.5M | 1.45% |
| Fidelity SAI U.S. Large Cap Index FundFidelity Salem Street Trust536K sh$274.2M | 1.45% |
| Schwab S&P 500 Index FundSCHWAB CAPITAL TRUST4.1M sh$2.1B | 1.45% |
| LargeCap S&P 500 Index FundPrincipal Funds, Inc377.9K sh$193.3M | 1.45% |
| SA Large Cap Index PortfolioSUNAMERICA SERIES TRUST92.8K sh$47.5M | 1.45% |
| Nuveen S&P 500 Index FundTIAA-CREF Funds385.4K sh$197.1M | 1.45% |
| NYLIM S&P 500 Index FundNYLIM FUNDS TRUST60.2K sh$30.8M | 1.44% |
| BNY Mellon S&P 500 Index FundBNY MELLON INDEX FUNDS, INC.75.8K sh$38.8M | 1.44% |
| BNY Mellon Institutional S&P 500 Stock Index FundBNY Mellon Investment Funds IV, Inc.37.6K sh$19.2M | 1.43% |
| Fidelity ZERO Large Cap Index FundFidelity Concord Street Trust523.8K sh$268M | 1.43% |
| Wilmington Large-Cap Strategy FundWilmington Funds16.7K sh$8.6M | 1.39% |
| Dimensional U.S. Equity Market ETFDimensional ETF Trust562.3K sh$287.7M | 1.38% |
| iShares Dow Jones U.S. ETFiShares Trust78.3K sh$40M | 1.36% |
| Schwab 1000 Index FundSCHWAB INVESTMENTS583.8K sh$298.6M | 1.35% |
| Direxion Daily S&P 500 Bull 2X SharesDirexion Shares ETF Trust6.9K sh$3.5M | 1.34% |
| LargeCap Value Fund IIIPrincipal Funds, Inc60.3K sh$30.9M | 1.33% |
| Federated Hermes Max-Cap Index FundFederated Hermes Index Trust7.4K sh$3.8M | 1.33% |
| Pacer Metaurus US Large Cap Dividend Multiplier 400 ETFPacer Funds Trust44.2K sh$22.6M | 1.32% |
| Innovator Equity Managed 10 Buffer ETFInnovator ETFs Trust1.2K sh$591.3K | 1.32% |
| Innovator Equity Managed Floor ETFInnovator ETFs Trust54.5K sh$27.9M | 1.32% |
| Nuveen Equity Index FundTIAA-CREF Funds1.5M sh$792M | 1.31% |
| Vox Populi ETFAdvisors Series Trust147 sh$75.2K | 1.30% |
| iShares Total U.S. Stock Market Index FundBlackRock Funds120.6K sh$61.7M | 1.30% |
| Fidelity ZERO Total Market Index FundFidelity Concord Street Trust997.6K sh$510.3M | 1.29% |
| Schwab Total Stock Market Index FundSCHWAB CAPITAL TRUST1.1M sh$569.3M | 1.29% |
| iShares Enhanced Large Cap Core Active ETFBlackRock ETF Trust336 sh$171.9K | 1.28% |
| Nuveen Large Cap Value FundTIAA-CREF Funds164.5K sh$84.2M | 1.28% |
| Invesco S&P 500 Equal Weight Financials ETFInvesco Exchange-Traded Fund Trust7.6K sh$3.9M | 1.27% |
| iShares U.S. Carbon Transition Readiness Aware Active ETFBlackRock ETF Trust29.9K sh$15.3M | 1.27% |
| FlexShares US Quality Large Cap Index FundFlexShares Trust25.1K sh$12.8M | 1.27% |
| JPMorgan Hedged Equity Laddered Overlay ETFJ.P. Morgan Exchange-Traded Fund Trust114K sh$58.3M | 1.26% |
| Innovator Equity Managed 100 Buffer ETFInnovator ETFs Trust3.4K sh$1.8M | 1.26% |
| Allspring Disciplined U.S. Core FundALLSPRING FUNDS TRUST51.8K sh$26.5M | 1.26% |
| Schwab Fundamental U.S. Large Company Index FundSCHWAB CAPITAL TRUST317.1K sh$162.2M | 1.23% |
| Calamos Hedged Equity FundCALAMOS INVESTMENT TRUST/IL20.9K sh$10.7M | 1.23% |
| Invesco S&P 500 GARP ETFInvesco Exchange-Traded Fund Trust54.1K sh$27.6M | 1.22% |
| FlexShares Morningstar US Market Factor Tilt Index FundFlexShares Trust51.7K sh$26.4M | 1.21% |
| Allspring Disciplined Large Cap PortfolioALLSPRING MASTER TRUST8.6K sh$4.4M | 1.21% |
| Hartford US Value ETFLattice Strategies Trust1.2K sh$593.4K | 1.21% |
| Eaton Vance Global Equity Income FundEaton Vance Mutual Funds Trust19.8K sh$10.1M | 1.20% |
| Transamerica Large Value OpportunitiesTRANSAMERICA FUNDS5.4K sh$2.7M | 1.17% |
| Invesco S&P 500 Downside Hedged ETFInvesco Actively Managed Exchange-Traded Fund Trust1.4K sh$739.2K | 1.16% |
| Direxion HCM Tactical Enhanced US ETFDirexion Shares ETF Trust12.8K sh$6.5M | 1.16% |
| First Eagle US Equity ETFFirst Eagle ETF Trust56 sh$28.6K | 1.16% |
| Multifactor U.S. Equity FundRUSSELL INVESTMENT CO6.4K sh$3.3M | 1.15% |
| U.S. CORE EQUITY 1 PORTFOLIODFA INVESTMENT DIMENSIONS GROUP INC914.6K sh$467.8M | 1.13% |
| ULTRABULL PROFUNDProFunds4K sh$2M | 1.11% |
| Dimensional US Core Equity Market ETFDimensional ETF Trust268.5K sh$137.3M | 1.11% |
| BNY Mellon US Large Cap Core Equity ETFBNY Mellon ETF Trust117.3K sh$60M | 1.10% |
| Victory 500 Index FundVictory Portfolios III326.9K sh$167.2M | 1.09% |
| Direxion Daily S&P 500 Bull 3X SharesDirexion Shares ETF Trust143.3K sh$73.3M | 1.09% |
| E*TRADE No Fee Large Cap Index FundE Trade Trust2.8K sh$1.4M | 1.09% |
| THRIVENT LARGE CAP VALUE FUNDThrivent Mutual Funds78.7K sh$40.3M | 1.08% |
| U.S. CORE EQUITY 2 PORTFOLIODFA INVESTMENT DIMENSIONS GROUP INC803.6K sh$411M | 1.06% |
| iShares U.S. Industry Rotation Active ETFBlackRock ETF Trust697 sh$356.5K | 1.04% |
| Invesco S&P 100 Equal Weight ETFInvesco Exchange-Traded Fund Trust54K sh$27.6M | 1.03% |
| Putnam U.S. Research FundPutnam Investment Funds16.3K sh$8.4M | 1.02% |
| Dimensional US Core Equity 1 ETFDimensional ETF Trust65.6K sh$33.6M | 1.01% |
| Crossmark Large Cap Value ETFCrossmark ETF Trust336 sh$171.9K | 1.00% |
| First Trust Long/Short Equity ETFFirst Trust Exchange-Traded Fund III48.8K sh$24.9M | 1.00% |
| Columbia Disciplined Value FundColumbia Funds Series Trust II4.2K sh$2.1M | 0.99% |
| JPMorgan Managed Futures Plus ETFJ.P. Morgan Exchange-Traded Fund Trust644 sh$329.4K | 0.99% |
| E*TRADE No Fee Total Market Index FundE Trade Trust2.1K sh$1.1M | 0.98% |
| Principal Capital Appreciation FundPrincipal Funds, Inc68K sh$34.8M | 0.89% |
| American Beacon Large Cap Value FundAMERICAN BEACON FUNDS51.5K sh$26.4M | 0.88% |
| Amplius Aggressive Asset Allocation ETFEA Series Trust4.8K sh$2.5M | 0.88% |
| Parametric Volatility Risk Premium - Defensive FundEaton Vance Mutual Funds Trust24.3K sh$12.4M | 0.87% |
| U.S. Large Cap Equity PortfolioDFA INVESTMENT DIMENSIONS GROUP INC44.6K sh$22.8M | 0.85% |
| iShares MSCI Kokusai ETFiShares Trust4.1K sh$2.1M | 0.84% |
| BULL PROFUNDProFunds865 sh$442.5K | 0.84% |
| American Beacon Balanced FundAMERICAN BEACON FUNDS1.6K sh$838.4K | 0.80% |
| Transamerica Balanced IITRANSAMERICA FUNDS1.1K sh$546.8K | 0.78% |
| Transamerica Multi-Managed BalancedTRANSAMERICA FUNDS22.9K sh$11.7M | 0.77% |
| Dimensional US Large Cap Core Equity Market ETFDimensional ETF Trust23K sh$11.8M | 0.76% |
| BlackRock Tactical Opportunities FundBlackRock Funds89.1K sh$45.6M | 0.76% |
| Tax-Managed U.S. Large Cap FundRUSSELL INVESTMENT CO185.2K sh$94.7M | 0.75% |
| Dimensional U.S. Core Equity 2 ETFDimensional ETF Trust702.3K sh$359.3M | 0.75% |
| Harbor PanAgora Dynamic Large Cap Core ETFHarbor ETF Trust12.1K sh$6.2M | 0.73% |
| VANGUARD TOTAL WORLD STOCK INDEX FUNDVANGUARD INTERNATIONAL EQUITY INDEX FUNDS1.4M sh$709.4M | 0.72% |
| JPMorgan Equity and Options Total Return ETFJ.P. Morgan Exchange-Traded Fund Trust1.4K sh$703.9K | 0.72% |
| Fidelity Series Stock Selector Large Cap Value FundFidelity Devonshire Trust242.5K sh$124M | 0.72% |
| Fidelity Stock Selector Large Cap Value FundFidelity Devonshire Trust11.6K sh$6M | 0.72% |
| Calamos Market Neutral Income FundCALAMOS INVESTMENT TRUST/IL252.4K sh$129.1M | 0.70% |
| Redwood Systematic Macro Trend FundTwo Roads Shared Trust1.6K sh$819K | 0.70% |
| iShares MSCI ACWI ETFiShares Trust442.9K sh$226.6M | 0.70% |
| George Putnam Balanced FundGeorge Putnam Balanced Fund31.5K sh$16.1M | 0.67% |
| SA Goldman Sachs Multi-Asset Insights PortfolioSUNAMERICA SERIES TRUST691 sh$353.5K | 0.66% |
| SA Franklin Systematic U.S. Large Cap Core PortfolioSUNAMERICA SERIES TRUST4.5K sh$2.3M | 0.66% |
| Goldman Sachs U.S. Equity Insights FundGoldman Sachs Trust13.8K sh$7.1M | 0.62% |
| PACE Large Co Growth Equity InvestmentsPACE SELECT ADVISORS TRUST7.9K sh$4.1M | 0.62% |
| 1290 SmartBeta Equity Fund1290 Funds3.5K sh$1.8M | 0.62% |
| iShares Low Carbon Optimized MSCI ACWI ETFiShares Trust13.4K sh$6.9M | 0.60% |
| iShares U.S. Thematic Rotation Active ETFBlackRock ETF Trust74.9K sh$38.3M | 0.59% |
| Virtus Equity & Convertible Income FundVirtus Equity & Convertible Income Fund9.2K sh$4.7M | 0.59% |
| Invesco Global Equity Net Zero ETFInvesco Actively Managed Exchange-Traded Fund Trust2K sh$1M | 0.58% |
| Innovator Equity Premium Income - Daily PutWrite ETFInnovator ETFs Trust185 sh$94.6K | 0.56% |
| U.S. VECTOR EQUITY PORTFOLIODFA INVESTMENT DIMENSIONS GROUP INC59.3K sh$30.3M | 0.55% |
| SA T. Rowe Price Allocation Moderately Aggressive PortfolioSUNAMERICA SERIES TRUST8.6K sh$4.4M | 0.55% |
| U.S. Strategic Equity FundRUSSELL INVESTMENT CO32.1K sh$16.4M | 0.54% |
| Franklin Global Equity FundLegg Mason Partners Investment Trust6.8K sh$3.5M | 0.53% |
| Davis Global FundDAVIS NEW YORK VENTURE FUND INC9.5K sh$4.8M | 0.52% |
| Victory Growth & Income FundVictory Portfolios III23.3K sh$11.9M | 0.52% |
| SA T. Rowe Price VCP Balanced PortfolioSUNAMERICA SERIES TRUST12.8K sh$6.5M | 0.49% |
| Steward Large Cap Core FundSteward Funds Inc2K sh$1M | 0.49% |
| PGIM Quant Solutions Large-Cap Core FundPrudential Investment Portfolios 99.9K sh$5.1M | 0.48% |
| Victory Value FundVictory Portfolios III13.8K sh$7.1M | 0.47% |
| iShares U.S. Equity Factor ETFiShares Trust32.4K sh$16.6M | 0.46% |
| Dimensional US Vector Equity ETFDimensional ETF Trust4.5K sh$2.3M | 0.42% |
| Franklin U.S. Core Equity (IU) FundFranklin Fund Allocator Series9.8K sh$5M | 0.42% |
| American Beacon Diversified FundAmerican Beacon Institutional Funds Trust4.8K sh$2.4M | 0.40% |
| FlexShares ESG & Climate US Large Cap Core Index FundFlexShares Trust825 sh$422K | 0.38% |
| Invesco Multi-Strategy FundAIM Investment Funds (Invesco Investment Funds)1.7K sh$883.4K | 0.36% |
Source: quarterly NPORT-P filings, via EDGAR. Positions arrive by CUSIP; each one here has been confirmed against OpenFIGI rather than matched by name. NPORT covers mutual funds, ETFs and closed-end funds alike and does not distinguish them, and positions are as of quarter end — a fund may have sold out entirely since. The summed value counts each filing once, so two share classes of the same fund appear twice.
More on BRK.B
Company overviewEverything on BRK.B in one place, with the price.Who owns itEvery manager reporting a position in BRK.B.LobbyingWhat BRK.B spends lobbying Congress, and on what.Who lobbies for itThe lobbyists on BRK.B's account, and who they worked for.Federal contractsWhat federal agencies pay BRK.B.