14 institutions reported holding $56.3M of Berkshire Hath. Cl B (BRK.B) in SEC 13F filings for 2026-03-31. Largest institutional holders: M. Kraus & Co ($20.8M), Ironwood Investment Counsel, LLC ($12.0M), Lummis Asset Management, LP ($7.5M), Drystone LLC ($7.1M), Barton Investment Management ($4.9M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | M. Kraus & Co | $20.8M | 43,304 | Trimmed |
| 2 | Ironwood Investment Counsel, LLC | $12.0M | 25,145 | Added |
| 3 | Lummis Asset Management, LP | $7.5M | 15,690 | Trimmed |
| 4 | Drystone LLC | $7.1M | 14,730 | Hold |
| 5 | Barton Investment Management | $4.9M | 10,255 | Trimmed |
| 6 | Sherry Group, Inc. | $1.3M | 2,694 | Trimmed |
| 7 | Opus Capital Group, LLC | $952,000 | 1,986 | New |
| 8 | KELLY LAWRENCE W & ASSOCIATES INC/CA | $589,895 | 1,231 | Trimmed |
| 9 | SCHULHOFF & CO INC | $317,709 | 663 | Hold |
| 10 | Tandem Investment Advisors, Inc. | $298,542 | 623 | Added |
| 11 | SFAM, LLC | $278,415 | 581 | Hold |
| 12 | Accent Capital Management, LLC | $172,512 | 360 | Trimmed |
| 13 | Sawyer & Company, Inc | $139,447 | 291 | Trimmed |
| 14 | HUNTINGTON NATIONAL BANK | $3,476 | 1 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31