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Berkshire Hathaway Class B
BRK.B

4,560 hedge funds and large institutions have $468B invested in Berkshire Hathaway Class B in 2025 Q1 according to their latest regulatory filings, with 226 funds opening new positions, 1,903 increasing their positions, 1,805 reducing their positions, and 107 closing their positions.

New
Increased
Maintained
Reduced
Closed

111% more first-time investments, than exits

New positions opened: 226 | Existing positions closed: 107

52% more call options, than puts

Call options by funds: $11.1B | Put options by funds: $7.32B

27% more funds holding in top 10

Funds holding in top 10: 732 → 932 (+200)

19% more capital invested

Capital invested by funds: $395B → $468B (+$73.4B)

5% more repeat investments, than reductions

Existing positions increased: 1,903 | Existing positions reduced: 1,805

1% more funds holding

Funds holding: 4,518 → 4,560 (+42)

0% less ownership

Funds ownership: 65.74% → 65.74% (-0%)

Holders
4,560
Holders Change
+42
Holders Change %
+0.93%
% of All Funds
61.15%
Holding in Top 10
932
Holding in Top 10 Change
+200
Holding in Top 10 Change %
+27.32%
% of All Funds
12.5%
New
226
Increased
1,903
Reduced
1,805
Closed
107
Calls
$11.1B
Puts
$7.32B
Net Calls
+$3.81B
Net Calls Change
-$334M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
+$1.98B
2
Vanguard Group
Vanguard Group
Pennsylvania
+$1.25B
3
JP Morgan Chase
JP Morgan Chase
New York
+$814M
4
Geode Capital Management
Geode Capital Management
Massachusetts
+$684M
5
BlackRock
BlackRock
New York
+$563M

Top Sellers

1
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
-$1.28B
2
Gates Foundation Trust
Gates Foundation Trust
Washington
-$1.21B
3
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$570M
4
AIS
AM Investment Strategies
Tennessee
-$497M
5
Flossbach Von Storch
Flossbach Von Storch
Germany
-$439M
Name Holding Trade Value Shares
Change 		Change in
Stake
Envestnet Asset Management
76
Envestnet Asset Management
Illinois
$653M -$27.9M -57,310 -4%
LCOV
77
London Company of Virginia
Virginia
$653M -$16.5M -34,014 -3%
GRQ
78
Gardner Russo & Quinn
Pennsylvania
$629M -$51.7M -106,313 -8%
Wealth Enhancement Advisory Services
79
Wealth Enhancement Advisory Services
Minnesota
$624M +$21.5M +44,217 +4%
Fidelity International
80
Fidelity International
Bermuda
$608M -$34.1M -70,139 -6%
Brown Advisory
81
Brown Advisory
Maryland
$595M -$9.22M -18,962 -2%
PNC Financial Services Group
82
PNC Financial Services Group
Pennsylvania
$577M +$11.2M +22,963 +2%
Mariner
83
Mariner
Kansas
$574M +$12.5M +25,771 +2%
CCM
84
Check Capital Management
California
$565M -$19.5M -40,203 -4%
Arrowstreet Capital
85
Arrowstreet Capital
Massachusetts
$565M +$284M +583,411 +122%
Korea Investment Corp
86
Korea Investment Corp
South Korea
$556M +$12.7M +26,068 +3%
RG
87
Rathbones Group
United Kingdom
$553M +$17.1M +35,216 +4%
AQR Capital Management
88
AQR Capital Management
Connecticut
$549M +$110M +226,455 +28%
Royal London Asset Management
89
Royal London Asset Management
United Kingdom
$547M +$31.4M +64,655 +7%
Ensign Peak Advisors
90
Ensign Peak Advisors
Utah
$541M -$15.4M -31,662 -3%
BCP
91
BSN Capital Partners
United Kingdom
$522M -$185M -380,021 -28%
Stifel Financial
92
Stifel Financial
Missouri
$508M -$14.3M -29,342 -3%
MFIM
93
Mesirow Financial Investment Management
Illinois
$502M -$1.69M -3,468 -0.4%
Osaic Holdings
94
Osaic Holdings
Arizona
$498M +$15.9M +32,728 +4%
DB
95
Danske Bank
Denmark
$493M +$7.05M +14,502 +2%
Bessemer Group
96
Bessemer Group
New Jersey
$489M +$81.5M +167,707 +22%
HCM
97
Himalaya Capital Management
Washington
$478M – – –
Universal-Beteiligungs- und Servicegesellschaft
98
Universal-Beteiligungs- und Servicegesellschaft
Germany
$470M -$1.7M -3,503 -0.4%
DWA
99
Douglass Winthrop Advisors
New York
$461M -$7.01M -14,410 -2%
Aviva
100
Aviva
United Kingdom
$454M +$58.1M +119,610 +16%
2 3
4
5 6

BRK.B Hedge Fund Activity: Q1 2025 in Review

4,560 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Berkshire Hathaway Class B (BRK.B) for Q1 2025, worth a combined $468B — up 19% from $395B a quarter earlier.

Buyers outnumbered sellers: 226 funds opened new BRK.B positions and 107 closed out — a net gain of 119 holders — while 1,903 added to existing stakes and 1,805 trimmed.

The largest buyer was Fidelity Investments, adding an estimated $1.98B. The largest seller was Assenagon Asset Management, cutting an estimated $1.28B.

  • 4,560 institutional investors held Berkshire Hathaway Class B (BRK.B) as of Q1 2025, up from 4,518 in Q4 2024.
  • Funds reported $468B of Berkshire Hathaway Class B stock for Q1 2025, up 19% quarter-over-quarter.
  • 226 funds opened new Berkshire Hathaway Class B positions in Q1 2025 and 107 closed out, a net change of +119 holders.
  • The largest Berkshire Hathaway Class B buyer in Q1 2025 was Fidelity Investments, an estimated $1.98B added.
  • The largest Berkshire Hathaway Class B seller in Q1 2025 was Assenagon Asset Management, an estimated $1.28B sold.

Based on aggregated 13F filings for Q1 2025.