DOSSIER · 13F Holders · Q2 2026

Berkshire Hathaway Cl B

1 institutions still hold Berkshire Hathaway Cl B as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 113809107·1 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$8M
visible holders
Holders
1
filers reporting
Concentration
100.00%
CULLINAN ASSOCIATES INC #1
top holder share
AI Holders Summary · Q2 2026

1 institutions reported Berkshire Hathaway Cl B in Q2 2026. CULLINAN ASSOCIATES INC leads at 100.0% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
CULLINAN ASSOCIATES INC
CIK 0001161670
$8M16K0.60%Q2 2026