13F Insight
DOSSIER · 13F Holders · Q1 2026Financial Services · Fire, Marine & Casualty InsuranceDefensive growthQuality
BRK/A

BERKSHIRE HATHAWAY INC DEL

1,494 institutions still hold BERKSHIRE HATHAWAY INC DEL as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 084670108·Fire, Marine & Casualty Insurance·1,494 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 9.7%
vs prior quarter
13F value held
$299.8B
63.0% inst. owned
of float
Holders
1,494
+96 QoQ
filers reporting
Activity
+36 / −44
+957 added · −819 reduced
this quarter
Concentration
88.26%
Mirae Asset Global Investments Co., Ltd. #1
top holder share
AI Holders Summary · Q1 2026

1,494 institutions reported BRK/A in Q1 2026. Mirae Asset Global Investments Co., Ltd. leads at 88.3% of the visible book. +96 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Mirae Asset Global Investments Co., Ltd.
CIK 0001569395
$264.6B368K88.40%Q1 202602
FMR LLC
CIK 0000315066
$12.2B17K0.64%Q1 202603
FIRST MANHATTAN CO. LLC.
CIK 0000728083
$10.0B14K27.82%Q1 202604
Vanguard Portfolio Management
CIK 0002100121
$1.5B2K0.08%Q1 202605
HighTower Advisors, LLC
CIK 0001462245
$1.4B2K1.53%Q1 202606
GARDNER RUSSO & QUINN LLC
CIK 0000860643
$1.0B1K12.34%Q1 202607
EVERETT HARRIS & CO /CA/
CIK 0001009254
$1.0B1K13.08%Q1 202608
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$990M1K0.02%Q1 202609
Hikari Tsushin, Inc.
CIK 0001423673
$809M1K55.80%Q1 202610
MARKEL GROUP INC.
CIK 0001096343
$800M1K6.70%Q1 202611
Paralel Advisors LLC
CIK 0001895911
$738M1K30.68%Q1 202612
DAVIS SELECTED ADVISERS
CIK 0001036325
$663M9233.04%Q1 202613
US BANCORP \DE\
CIK 0000036104
$618M8610.75%Q1 202614
MORGAN STANLEY
CIK 0000895421
$542M7550.03%Q1 202615
BANK OF AMERICA CORP /DE/
CIK 0000070858
$534M7440.04%Q1 202616
WELLCOME TRUST LTD (THE) as trustee of the WELLCOME TRUST
CIK 0001026720
$503M7006.21%Q1 202617
FIDUCIARY TRUST CO
CIK 0000035442
$462M6435.46%Q1 202618
STATE OF WISCONSIN INVESTMENT BOARD
CIK 0000854157
$452M6301.04%Q1 202619
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM
CIK 0000919079
$450M6270.28%Q1 202620
PNC FINANCIAL SERVICES GROUP, INC.
CIK 0000713676
$406M5380.24%Q4 2025
Page 1 of 75
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