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BRK-B in the 13F filings

Berkshire Hathaway Inc Del · CUSIP 084670702

Sector · InsuranceTheme · Financial services· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Jun 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 31 Jul 2026
Managers listing it
47
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 36 listed it in both
Shares listed
57,933,063
combined, among listed positions
Reported value
$28.9bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 22 buyers (opened or added shares) and 21 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,526,007.

Managers listing BRK-B in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

47 of 47 holders

ActionFiling
Fidelity (FMR LLC)10,400,007$5.2bn0.23%Trimmed-4,553,69113 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc9,769,546$4.9bn0.49%Trimmed-54,38414 Aug 2026 (the filing on sec.gov)
Invesco Ltd4,806,945$2.4bn0.19%Trimmed-88,20014 Aug 2026 (the filing on sec.gov)
Wellington Management Group LLP3,618,141$1.8bn0.31%Added+1,972,55114 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP3,623,068$1.7bn0.57%Trimmed-749,85914 Aug 2026 (the filing on sec.gov)
Artisan Partners LP2,893,595$1.4bn2.30%Added+287,93913 Aug 2026 (the filing on sec.gov)
Capital World Investors2,708,035$1.4bn0.16%Newnew12 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC2,379,700$1.2bn0.42%Added+737,65214 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP2,274,395$1.1bn0.82%Added+652,80514 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.1,920,532$961m0.46%Added+1,452,32814 Aug 2026 (the filing on sec.gov)
Neuberger Berman Group LLC1,902,101$951m0.63%Added+251,92727 Oct 2026 (the filing on sec.gov)
Capital Research Global Investors1,568,457$785m0.11%Trimmed-360,30812 Aug 2026 (the filing on sec.gov)
Markel Group Inc1,531,971$767m5.84%Held031 Jul 2026 (the filing on sec.gov)
Acadian Asset Management LLC1,200,239$601m0.71%Trimmed-61,40713 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC1,085,742$543m0.06%Trimmed-107,7582 Sep 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP818,279$409m1.11%Added+53,01314 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC591,348$296m0.33%Added+5,31214 Aug 2026 (the filing on sec.gov)
Millennium Management LLC587,670$294m0.11%Trimmed-65,47014 Aug 2026 (the filing on sec.gov)
Holocene Advisors LP527,000$264m0.59%Held014 Aug 2026 (the filing on sec.gov)
Balyasny Asset Management LLC424,841$213m0.27%Trimmed-14,55514 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC420,574$210munder 0.1%Added+354,70714 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP390,170$195m0.15%Trimmed-32,50413 Aug 2026 (the filing on sec.gov)
Woodline Partners LP374,884$188m0.58%Added+33,65014 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP336,205$168munder 0.1%Trimmed-320,00514 Aug 2026 (the filing on sec.gov)
Ruane Cunniff & Goldfarb LP300,672$150m2.34%Trimmed-9,71614 Aug 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (3)

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
27 in Q3 2024 to 41 in Q2 2026

Tracked managers listing it, at least.

02040602014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
BRK-B by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201324$6.4bnn.a.n.a.
Q3 201330$6.4bnn.a.n.a.
Q4 201326$7.1bnn.a.n.a.
Q1 201425$8.0bnn.a.n.a.
Q2 201428$8.3bnn.a.n.a.
Q3 201427$8.8bnn.a.n.a.
Q4 201426$8.3bnn.a.n.a.
Q1 201529$8.6bnn.a.n.a.
Q2 201532$8.1bnn.a.n.a.
Q3 201523$8.5bnn.a.n.a.
Q4 201526$8.9bnn.a.n.a.
Q1 201624$8.8bnn.a.n.a.
Q2 201625$8.7bnn.a.n.a.
Q3 201627$8.5bnn.a.n.a.
Q4 201629$10.3bnn.a.n.a.
Q1 201727$9.8bnn.a.n.a.
Q2 201727$10.1bnn.a.n.a.
Q3 201725$11.3bnn.a.n.a.
Q4 201728$11.9bnn.a.n.a.
Q1 201828$11.7bnn.a.n.a.
Q2 201825$11.3bnn.a.n.a.
Q3 201827$12.5bnn.a.n.a.
Q4 201827$12.6bnn.a.n.a.
Q1 201931$12.9bnn.a.n.a.
Q2 201927$13.8bnn.a.n.a.
Q3 201927$13.8bnn.a.n.a.
Q4 201926$15.8bnn.a.n.a.
Q1 202035$12.2bnn.a.n.a.
Q2 202032$12.2bnn.a.n.a.
Q3 202028$12.7bnn.a.n.a.
Q4 202032$12.3bnn.a.n.a.
Q1 202131$12.3bnn.a.n.a.
Q2 202133$13.1bnn.a.n.a.
Q3 202133$13.3bnn.a.n.a.
Q4 202134$14.4bnn.a.n.a.
Q1 202229$16.7bnn.a.n.a.
Q2 202238$14.5bnn.a.n.a.
Q3 202228$14.0bnn.a.n.a.
Q4 202231$16.4bnn.a.n.a.
Q1 202326$16.8bnn.a.n.a.
Q2 202329$16.8bnn.a.n.a.
Q3 202334$17.2bnn.a.n.a.
Q4 202329$16.8bn1318
Q1 202431$19.3bn1514
Q2 202432$18.7bn1516
Q3 202427$21.2bn1512
Q4 202433$21.1bn1912
Q1 202531$26.6bn1615
Q2 202539$21.6bn2117
Q3 202541$23.7bn1819
Q4 202536$23.3bn1925
Q1 202636$26.6bn2518
Q2 202641$28.5bn2221

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

BRK-B and V →BRK-B and AXP →BRK-B and BAC →Choose a stock to compare with BRK-B →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own BRK-B, latest filings →Back to the 13F Explorer →