Question 1

How many shares of BRK/B does BROWN BROTHERS HARRIMAN & CO own?

Accepted Answer

As of 2026-Q1, BROWN BROTHERS HARRIMAN & CO holds 1.1M shares of BRK/B (BERKSHIRE HATHAWAY INC DEL).

Question 2

What is BROWN BROTHERS HARRIMAN & CO's BRK/B position worth?

Accepted Answer

As of 2026-Q1, BROWN BROTHERS HARRIMAN & CO's BRK/B position is worth $545.6M.

Question 3

Is BROWN BROTHERS HARRIMAN & CO buying or selling BRK/B?

Accepted Answer

In 2026-Q1, BROWN BROTHERS HARRIMAN & CO increased their BRK/B position (+1.3% change in shares).

Question 4

When did BROWN BROTHERS HARRIMAN & CO first buy BRK/B?

Accepted Answer

Based on available 13F filings, BROWN BROTHERS HARRIMAN & CO first reported a position in BRK/B in 2026-Q1. They have held the position across 29 quarters.