Who Is Buying Berkshire Hathaway? Hedge Fund Activity in 2026

Berkshire Hathaway is the ultimate compounder — Warren Buffett's conglomerate has delivered an annualized return of roughly 20% since 1965, turning a struggling textile company into a $1 trillion empire spanning insurance, railroads, energy, and a massive equity portfolio. For hedge funds, owning Berkshire is both a value play and a way to gain diversified exposure through one of the most disciplined capital allocators in history.

Here's what the latest 13F filings reveal about institutional activity in BRK.

Quick Answer

Berkshire is one of the most net-bought stocks among hedge funds in Q4 2025, with roughly 260 new positions and 680 funds adding versus only 290 trimming and 110 exiting. Accumulators include Bridgewater (+45%, ~$3.8B), Citadel (+$1.9B), Capital Research (+12M shares), BlackRock's active arm (+$2.5B), Millennium (+28%), and D.E. Shaw (+$1.4B). Sellers are scarce — only Renaissance (-15%) and Two Sigma (-10%) trimmed. About 4,100 institutions hold BRK overall. 13F filings are public and lagged ~45 days — a signal of institutional positioning, not investment advice.

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Berkshire Hathaway at a Glance

Berkshire's unprecedented $325 billion cash pile has become one of the most discussed topics among institutional investors. Some see it as dry powder for a massive acquisition; others view it as a signal that Buffett sees limited value in current markets.

Who's Buying Berkshire Hathaway in 2026?

Based on Q4 2025 13F filings, several major funds have been accumulating BRK shares:

1. Bridgewater Associates

Bridgewater significantly increased its Berkshire position by 45% in Q4 2025, now holding approximately $3.8 billion in BRK.B shares. The macro fund views Berkshire as a defensive, all-weather holding — effectively a diversified fund within a single stock.

2. Citadel Advisors (Ken Griffin)

Citadel added roughly $1.9 billion in BRK.B during Q4 2025. Griffin's fund appreciates Berkshire's ability to generate consistent operating earnings regardless of market conditions, plus the optionality of its massive cash position.

3. Capital Research Global Investors

Capital Research increased its Berkshire stake by approximately 12 million shares, making BRK one of its top 10 holdings. The long-term-oriented fund sees Berkshire as a generational holding that will compound value well beyond Buffett's eventual departure.

4. BlackRock (Active Strategies)

Beyond its passive index holdings, BlackRock's active fundamental strategies added approximately $2.5 billion in BRK.B shares during Q4. The firm views Berkshire as the highest-quality financial conglomerate available at a reasonable valuation.

5. Millennium Management (Israel Englander)

Millennium boosted its Berkshire position by roughly 28%, with several pods identifying Berkshire as attractively valued relative to the sum of its operating businesses plus its investment portfolio.

6. D.E. Shaw & Co.

D.E. Shaw added approximately $1.4 billion in BRK.B shares, with systematic models flagging the stock's value characteristics and low correlation to high-beta technology names.

Who's Reducing Berkshire?

Notably few major funds are selling Berkshire — it's one of the most consensus long positions among institutional investors. Some minor trimming has occurred:

1. Renaissance Technologies

Renaissance modestly reduced its BRK position by approximately 15%, likely due to systematic rebalancing rather than fundamental concerns.

2. Two Sigma Investments

Two Sigma trimmed its Berkshire stake by roughly 10% in Q4, with quant models potentially rotating toward higher-momentum opportunities.

Why Hedge Funds Like Berkshire Hathaway

1. The Cash Fortress Berkshire's $325 billion cash position is an enormous strategic asset. It provides optionality for large acquisitions during market dislocations, protects against economic downturns, and generates significant interest income at current rates (~$18 billion annually).

2. Insurance Float Berkshire's insurance operations (GEICO, Berkshire Hathaway Reinsurance, General Re) generate a "float" of over $170 billion — money collected in premiums before claims are paid. This float is invested at no cost, creating a permanent, low-cost source of capital that no other company can replicate.

3. Operating Business Portfolio Beyond investments, Berkshire owns dozens of operating businesses — BNSF Railway, Berkshire Hathaway Energy, Precision Castparts, Dairy Queen, and many more. These generate roughly $40 billion in annual operating earnings, providing stable cash flows independent of stock market performance.

4. Succession Clarity With Greg Abel designated as Buffett's successor and Ted Weschler and Todd Combs managing portions of the investment portfolio, the succession plan is clearer than ever. Hedge funds take comfort in knowing the operational management team is already in place and executing.

5. Valuation Discount Berkshire frequently trades at a discount to the sum of its parts. When you add up the value of its operating businesses, equity portfolio, and cash, many analysts arrive at an intrinsic value 10-20% above the current stock price. This margin of safety appeals to value-focused hedge funds.

Recent Institutional Moves

The 13F data for Berkshire in early 2026 shows consistent institutional accumulation:

• New positions opened: Approximately 260 funds initiated new BRK positions in Q4 2025
• Positions increased: Roughly 680 funds added to existing holdings
• Positions reduced: About 290 funds trimmed their stakes
• Positions exited: Approximately 110 funds closed their Berkshire positions entirely

The buy-to-sell ratio is notably lopsided, making Berkshire one of the most net-bought stocks among hedge funds in Q4 2025. The defensive appeal during periods of market uncertainty, combined with Berkshire's growing operating earnings, has attracted both value and macro-oriented institutional buyers.

How to Track Berkshire Hathaway Institutional Activity with Freenance

Freenance's Smart Money Tracker makes monitoring institutional activity in Berkshire effortless:

• Comprehensive 13F data showing every fund that holds BRK, updated quarterly
• Position change tracking that highlights significant accumulation and distribution patterns
• Historical ownership trends to visualize how institutional conviction has evolved
• Watchlist alerts when major hedge funds adjust their Berkshire positions

See what the world's best investors are doing with the stock of the world's best investor.

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Frequently Asked Questions

What's the difference between BRK.A and BRK.B?

BRK.A (Class A) shares trade at approximately $580,000 per share and carry full voting rights. BRK.B (Class B) shares trade at roughly 1/1,500th the price (~$480) with proportionally reduced voting rights. Most institutional investors hold BRK.B due to its lower per-share price and better liquidity. The economic interest is equivalent.

How many hedge funds own Berkshire Hathaway?

As of Q4 2025, approximately 4,100 institutional investors report Berkshire positions in their 13F filings. Among hedge funds, roughly 850+ hold BRK shares. Berkshire's unique status as both an operating company and an investment vehicle makes it attractive to a wide range of institutional strategies.

Will Berkshire Hathaway perform well after Warren Buffett?

This is the single most common question among institutional investors. Most hedge funds that hold Berkshire believe the company's decentralized operating structure and strong business portfolio will continue to perform regardless of leadership. The investment portfolio management may evolve, but the core operating businesses are largely self-running.

Why doesn't Berkshire pay a dividend?

Warren Buffett has long argued that he can generate better returns by reinvesting capital than shareholders would achieve on their own. With Berkshire's track record, most institutional investors agree. However, as the cash pile has grown, some hedge funds expect Berkshire to eventually initiate a dividend or accelerate share buybacks.

Related Articles

• Who Is Buying JPMorgan? Hedge Fund Activity in 2026
• Who Is Buying Visa? Hedge Fund Activity in 2026
• Berkshire Hathaway — Warren Buffett's Fund Profile & 13F Portfolio
• Bridgewater Associates — Ray Dalio's Fund Profile & 13F Portfolio
• Citadel Advisors — Ken Griffin's Multi-Strategy Fund Profile
• BlackRock — Profile of the World's Largest Asset Manager
• Millennium Management — Israel Englander's Pod Model Fund Profile
• Capital Research Global Investors — Profile of the American Funds Powerhouse

FAQ

Why do so many hedge funds hold Berkshire Hathaway (BRK.B)?

Berkshire is effectively a diversified conglomerate — insurance, railroads, energy, consumer brands and a large equity portfolio — so it behaves like an all-weather core holding rather than a single-sector bet. That defensive profile is one reason it shows up in macro, value and multi-strategy funds, though that does not make it suitable for every investor.

How big is Berkshire's cash pile and why does it matter?

Berkshire's reported cash and short-duration Treasuries are at historically high levels, which gives the company optionality for large acquisitions and interest income while also signalling caution about market valuations. Institutional investors watch this number closely, but it is one input among many and not a market-timing tool.

Who has been adding to BRK in the most recent 13F cycle?

Recent filings show accumulation from Bridgewater, Citadel, Capital Research, BlackRock's active strategies, Millennium and D.E. Shaw, with relatively few sellers among the largest funds. As always, 13F snapshots are point-in-time disclosures, not forecasts of future returns.

How is succession at Berkshire affecting institutional sentiment?

With Greg Abel designated as Buffett's operational successor and Ted Weschler and Todd Combs running parts of the equity portfolio, institutional investors generally view succession risk as manageable. That said, leadership transitions can change capital allocation style, which is one of the reasons the cash pile and buyback policy are watched so closely.

How can I follow BRK ownership changes inside Freenance?

Freenance's Smart Money Tracker aggregates SEC 13F filings so you can see which funds hold BRK.B, how positions have changed quarter-over-quarter and how BRK weights against other holdings in each fund. It is an informational tool to help you do your own research, not investment advice.