13F Insight
DOSSIER · 13F Holders · Q2 2026

BERKSHIRE HATHAWAY INC DEL

12 institutions still hold BERKSHIRE HATHAWAY INC DEL as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 084670952·12 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$919M
visible holders
Holders
12
filers reporting
Concentration
41.47%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

12 institutions reported BERKSHIRE HATHAWAY INC DEL in Q2 2026. IMC-Chicago, LLC leads at 41.5% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$381M762K0.09%Q2 202602
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$158M3K0.11%Q2 202603
JPMORGAN CHASE & CO
CIK 0000019617
$149M300K0.01%Q2 202604
SIMPLEX TRADING, LLC
CIK 0001488542
$106M212K0.06%Q2 202605
GROUP ONE TRADING LLC
CIK 0000932540
$78M156K0.11%Q2 202606
Maven Securities LTD
CIK 0001633046
$46M91K0.90%Q2 202607
All Terrain Financial Advisors, LLC
CIK 0001731358
$1M2K0.17%Q2 202608
Focus Partners Wealth
CIK 0001542153
$300K6000.00%Q2 202609
Miracle Mile Advisors, LLC
CIK 0001585859
$300K6000.00%Q2 202610
SG Americas Securities, LLC
CIK 0001313360
$32K11K0.00%Q1 202611
Brooklands Fund Management Ltd
CIK 0002036388
$20K60.02%Q2 202612
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025