How many shares of BRK/B does BLAIR WILLIAM & CO/IL own?

As of 2026-Q2, BLAIR WILLIAM & CO/IL holds 483,586 shares of BRK/B (BERKSHIRE HATHAWAY INC-CL B).

What is BLAIR WILLIAM & CO/IL's BRK/B position worth?

As of 2026-Q2, BLAIR WILLIAM & CO/IL's BRK/B position is worth $242M.

Is BLAIR WILLIAM & CO/IL buying or selling BRK/B?

In 2026-Q2, BLAIR WILLIAM & CO/IL decreased their BRK/B position (-2.4% change in shares).

When did BLAIR WILLIAM & CO/IL first buy BRK/B?

Based on available 13F filings, BLAIR WILLIAM & CO/IL first reported a position in BRK/B in 2018-Q4. They have held the position across 31 quarters.

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BLAIR WILLIAM & CO/IL

BRK/B
31 quarters

Position history for BLAIR WILLIAM & CO/IL's holdings in BERKSHIRE HATHAWAY INC-CL B

Current Value

$242M

Current Shares

483,586

Total Value Change

+$134.1M

Total Shares Change

-44,897

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	483,586	-2.4%	$242M	0.6%	$500.39	0
2026-Q1	Increased	495,322	+10.8%	$237.4M	0.7%	$481.36	48
2025-Q4	Increased	447,062	+0.4%	$224.7M	0.6%	$503.71	43
2025-Q3	Increased	445,234	+0.6%	$223.8M	0.6%	$499.25	43
2025-Q2	Increased	442,597	+5.2%	$215M	0.6%	$485.68	45
2025-Q1	Increased	420,754	+0.4%	$224.1M	0.7%	$526.31	43
2024-Q4	Increased	419,119	+2.8%	$190M	0.6%	$452.16	44
2024-Q3	Increased	407,857	+0.4%	$187.7M	0.6%	$457.47	43
2024-Q2	Increased	406,304	+2.7%	$165.3M	0.5%	$406.80	44
2024-Q1	Increased	395,699	+4.0%	$166.4M	0.5%	$420.52	45
2023-Q4	Increased	380,484	+7.0%	$135.7M	0.5%	$356.66	39
2023-Q3	Increased	355,627	+1.1%	$124.6M	0.5%	$350.30	36
2023-Q2	Decreased	351,928	-1.7%	$120M	0.4%	$336.91	0
2023-Q1	Increased	358,116	+0.3%	$110.6M	0.4%	$305.08	36
2022-Q4	Increased	356,957	+6.3%	$110.3M	0.5%	$308.90	38
2022-Q3	Increased	335,919	+2.9%	$89.7M	0.4%	$269.58	37
2022-Q2	Decreased	326,339	-0.1%	$89.1M	0.4%	$273.49	0
2022-Q1	Decreased	326,741	-0.3%	$115.3M	0.4%	$357.61	0
2021-Q4	Increased	327,647	+4.3%	$98M	0.3%	$299.98	37
2021-Q3	Increased	314,155	+2.5%	$85.7M	0.3%	$277.29	36
2021-Q2	Decreased	306,490	-0.3%	$85.2M	0.3%	$276.21	0
2021-Q1	Decreased	307,470	-14.2%	$78.5M	0.3%	$258.19	0
2020-Q4	Increased	358,431	+3.6%	$83.1M	0.3%	$229.65	37
2020-Q3	Decreased	345,982	-1.3%	$73.7M	0.3%	$210.44	0
2020-Q2	Decreased	350,474	-36.6%	$62.6M	0.3%	$177.19	0
2020-Q1	Decreased	552,795	-0.2%	$101.1M	0.6%	$183.18	0
2019-Q4	Increased	553,739	+2.5%	$125.4M	0.6%	$225.76	44
2019-Q3	Decreased	540,036	-6.8%	$112.3M	0.6%	$207.45	0
2019-Q2	Increased	579,257	+5.8%	$123.5M	0.7%	$213.17	45
2019-Q1	Increased	547,706	+3.6%	$110M	0.7%	$200.89	44
2018-Q4	New	528,483	-	$107.9M	0.8%	$202.08	59

Other major holders of BRK/B: BNP PARIBAS FINANCIAL MARKETS, VANGUARD GROUP INC

BRK/B31 quarters

BRK/B
31 quarters