Skip to main content
BRK-B logo

BRK-B · Berkshire Hathaway Inc

Track BRK-B — free
Market Cap
$711.64B
Shares
1.41B

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 4,984
Total Value: $536,085,614,519
Total Shares: 956,597,723
Showing 1–100 of 5,803 holdings by value · page 1 of 59

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 4,984 13F filers · Δ vs Mar 31, 2026
Top Holder
11.4%
Sep 2023 → Jun 2026 · range 11.4% – 34.3%
−22.9 pts
Top 5
36.6%
Sep 2023 → Jun 2026 · range 36.6% – 56.5%
−19.9 pts
Top 10
47.6%
Sep 2023 → Jun 2026 · range 47.6% – 64.9%
−17.3 pts
HHI
375
Sep 2023 → Jun 2026 · range 375 – 1,341
Broadly held−965

Quarterly Activity

vs Mar 31, 2026
New
242
Increased
2,016
Decreased
2,045
Sold Out
241
Unchanged
681
Holder count: +1
Institutional value: -30.5%
Shares held: +1.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 5,803
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1067983 CUSIP 084670702 13F (30d) 2179 filings 2034 filers Visit website