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Berkshire Hathaway Class B

4,594 hedge funds and large institutions have $426B invested in Berkshire Hathaway Class B in 2025 Q2 according to their latest regulatory filings, with 216 funds opening new positions, 1,997 increasing their positions, 1,738 reducing their positions, and 124 closing their positions.

New
Increased
Maintained
Reduced
Closed

74% more first-time investments, than exits

New positions opened: 216 | Existing positions closed: 124

33% more call options, than puts

Call options by funds: $9.26B | Put options by funds: $6.95B

15% more repeat investments, than reductions

Existing positions increased: 1,997 | Existing positions reduced: 1,738

1% more funds holding

Funds holding: 4,5654,594 (+29)

0.26% less ownership

Funds ownership: 65.75%65.49% (-0.26%)

9% less capital invested

Capital invested by funds: $468B → $426B (-$42.5B)

23% less funds holding in top 10

Funds holding in top 10: 932722 (-210)

Holders
4,594
Holders Change
+29
Holders Change %
+0.64%
% of All Funds
60.39%
Holding in Top 10
722
Holding in Top 10 Change
-210
Holding in Top 10 Change %
-22.53%
% of All Funds
9.49%
New
216
Increased
1,997
Reduced
1,738
Closed
124
Calls
$9.26B
Puts
$6.95B
Net Calls
+$2.31B
Net Calls Change
-$1.5B
Name Holding Trade Value Shares
Change
Change in
Stake
Mariner
76
Mariner
Kansas
$531M +$8.02M +15,801 +1%
AQR Capital Management
77
AQR Capital Management
Connecticut
$530M +$31.2M +61,489 +6%
PNC Financial Services Group
78
PNC Financial Services Group
Pennsylvania
$528M +$1.66M +3,274 +0.3%
CCM
79
Check Capital Management
California
$521M +$5.24M +10,326 +1%
Capital Research Global Investors
80
Capital Research Global Investors
California
$520M -$118M -233,244 -18%
RG
81
Rathbones Group
United Kingdom
$511M +$7.78M +15,315 +1%
LCOV
82
London Company of Virginia
Virginia
$510M -$88.8M -174,853 -14%
Brown Advisory
83
Brown Advisory
Maryland
$510M -$34.2M -67,432 -6%
Wealth Enhancement Advisory Services
84
Wealth Enhancement Advisory Services
Minnesota
$509M -$62.1M -122,358 -10%
Arrowstreet Capital
85
Arrowstreet Capital
Massachusetts
$509M -$7.3M -14,369 -1%
Osaic Holdings
86
Osaic Holdings
Arizona
$501M +$48.5M +95,491 +10%
Korea Investment Corp
87
Korea Investment Corp
South Korea
$499M -$7.81M -15,387 -1%
Ensign Peak Advisors
88
Ensign Peak Advisors
Utah
$490M -$4.54M -8,942 -0.9%
Aviva
89
Aviva
United Kingdom
$486M +$75.4M +148,404 +17%
Assenagon Asset Management
90
Assenagon Asset Management
Luxembourg
$476M -$262M -514,980 -34%
Stifel Financial
91
Stifel Financial
Missouri
$474M +$11.6M +22,872 +2%
DB
92
Danske Bank
Denmark
$470M +$21.1M +41,559 +4%
MFIM
93
Mesirow Financial Investment Management
Illinois
$464M +$5.88M +11,579 +1%
Royal London Asset Management
94
Royal London Asset Management
United Kingdom
$455M -$45.9M -90,408 -9%
HCM
95
Himalaya Capital Management
Washington
$436M
Susquehanna International Group
96
Susquehanna International Group
Pennsylvania
$434M +$381M +749,372 +517%
Fidelity International
97
Fidelity International
Bermuda
$433M -$127M -249,304 -22%
Universal-Beteiligungs- und Servicegesellschaft
98
Universal-Beteiligungs- und Servicegesellschaft
Germany
$430M +$839K +1,652 +0.2%
DWA
99
Douglass Winthrop Advisors
New York
$423M +$2.01M +3,951 +0.5%
TD Asset Management
100
TD Asset Management
Ontario, Canada
$420M +$75.1M +147,909 +21%

BRK.B Hedge Fund Activity: Q2 2025 in Review

4,594 of the 7,607 institutional investors tracked by Wall St. Rank reported a position in Berkshire Hathaway Class B (BRK.B) for Q2 2025, worth a combined $426B — down 9.1% from $468B a quarter earlier.

Buyers outnumbered sellers: 216 funds opened new BRK.B positions and 124 closed out — a net gain of 92 holders — while 1,997 added to existing stakes and 1,738 trimmed.

The largest buyer was Gates Foundation Trust, adding an estimated $3.53B. The largest seller was Fidelity Investments, cutting an estimated $2.52B.

  • 4,594 institutional investors held Berkshire Hathaway Class B (BRK.B) as of Q2 2025, up from 4,565 in Q1 2025.
  • Funds reported $426B of Berkshire Hathaway Class B stock for Q2 2025, down 9.1% quarter-over-quarter.
  • 216 funds opened new Berkshire Hathaway Class B positions in Q2 2025 and 124 closed out, a net change of +92 holders.
  • The largest Berkshire Hathaway Class B buyer in Q2 2025 was Gates Foundation Trust, an estimated $3.53B added.
  • The largest Berkshire Hathaway Class B seller in Q2 2025 was Fidelity Investments, an estimated $2.52B sold.

Based on aggregated 13F filings for Q2 2025.