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Berkshire Hathaway Class B
BRK.B

Overview Fund Activity

4,494 hedge funds and large institutions have $464B invested in Berkshire Hathaway Class B in 2025 Q1 according to their latest regulatory filings, with 223 funds opening new positions, 1,874 increasing their positions, 1,786 reducing their positions, and 107 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
4,494
Holders Change
+29
Holders Change %
+0.65%
% of All Funds
61.04%
Holding in Top 10
920
Holding in Top 10 Change
+202
Holding in Top 10 Change %
+28.13%
% of All Funds
12.5%
New
223
Increased
1,874
Reduced
1,786
Closed
107
Calls
$11.1B
Puts
$7.32B
Net Calls
+$3.81B
Net Calls Change
-$334M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
+$2.17B
2
Vanguard Group
Vanguard Group
Pennsylvania
+$1.37B
3
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
+$892M
4
Geode Capital Management
Geode Capital Management
Massachusetts
+$747M
5
BlackRock
BlackRock
New York
+$617M

Top Sellers

1
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
-$1.4B
2
Gates Foundation Trust
Gates Foundation Trust
Washington
-$1.32B
3
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$624M
4
AIS
AM Investment Strategies
Tennessee
-$545M
5
Flossbach Von Storch
Flossbach Von Storch
Germany
-$480M
Name Holding Trade Value Shares
Change 		Shares
Change %
SC
4501
SRB Corp
Massachusetts
– -$48.4M -106,799 Closed
C
4502
Consulta
United Kingdom
– -$45.3M -100,000 Closed
SCM
4503
Steadfast Capital Management
New York
– -$45.2M -99,739 Closed
Parallax Volatility Advisers
4504
Parallax Volatility Advisers
California
– -$44.9M -99,010 Closed
GJCM
4505
Grand Jean Capital Management
California
– -$43.2M -95,283 Closed
Capital Fund Management (CFM)
4506
Capital Fund Management (CFM)
France
– -$32.1M -70,750 Closed
Twin Tree Management
4507
Twin Tree Management
Texas
– -$26.2M -57,701 Closed
PAMP
4508
Polar Asset Management Partners
Ontario, Canada
– -$23.6M -52,000 Closed
IMC Chicago
4509
IMC Chicago
Illinois
– -$23M -50,643 Closed
WWA
4510
WCG Wealth Advisors
Nevada
– -$20.2M -44,537 Closed
PCM
4511
Prana Capital Management
Connecticut
– -$20.1M -44,369 Closed
RP
4512
Rice Partnership
Hawaii
– -$16.1M -35,599 Closed
CI
4513
CX Institutional
Indiana
– -$15.2M -33,541 Closed
Simplex Trading
4514
Simplex Trading
Illinois
– -$15M -33,016 Closed
HCM
4515
Harspring Capital Management
New York
– -$11.1M -24,500 Closed
FHB
4516
First Hawaiian Bank
Hawaii
– -$11M -24,335 Closed
IFLIT
4517
Investmentaktiengesellschaft Fuer Langfristige Investoren TGV
Germany
– -$11M -24,325 Closed
CFGS
4518
Concourse Financial Group Securities
Alabama
– -$8.86M -19,247 Closed
Balyasny Asset Management
4519
Balyasny Asset Management
Illinois
– -$8.53M -18,813 Closed
WS
4520
Wela Strategies
Georgia
– -$18.7K -18,702 Closed
Holocene Advisors
4521
Holocene Advisors
New York
– -$7.86M -17,330 Closed
TI
4522
Trexquant Investment
Connecticut
– -$7.29M -16,075 Closed
WP
4523
WMS Partners
Maryland
– -$7.24M -15,979 Closed
MECA
4524
Miller Equity Capital Advisors
Texas
– -$6.63M -14,630 Closed
MHS
4525
M Holdings Securities
Oregon
– -$5.99M -13,220 Closed
179 180
181
182 183