Does Ariel Investments own BIO stock?

Yes. As of its Q2 2026 13F, Ariel Investments holds 816,751 shares of BIO (Bio-Rad Laboratories), worth $239.8M.

How many shares of BIO does Ariel Investments own?

As of its Q2 2026 13F, Ariel Investments holds 816,751 shares of BIO (Bio-Rad Laboratories).

As of its Q2 2026 13F, Ariel Investments' BIO position is worth $239.8M.

In Q2 2026, Ariel Investments increased its BIO position by 30,790 shares (+3.9%).

Ariel Investments already held BIO in its Q1 2019 13F, the earliest on record, and has listed it in 30 quarterly 13F filings.

Position history for ARIEL INVESTMENTS, LLC's holdings in Bio-Rad Laboratories, Inc.

Current Value

$239.8M

Current Shares

816,751

Total Value Change

+$166.3M

Total Shares Change

+576,402

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	816,751	+3.9%	$239.8M	2.4%	$293.61	55
2026-Q1	Increased	785,961	+2.8%	$219.1M	2.5%	$278.75	54
2025-Q4	Decreased	764,672	-5.5%	$231.7M	2.5%	$302.99	0
2025-Q3	Decreased	809,480	-1.1%	$227M	2.4%	$280.39	0
2025-Q2	Increased	818,624	+13.0%	$197.6M	2.2%	$241.32	59
2025-Q1	Increased	724,660	+29.3%	$176.5M	2.1%	$243.56	66
2024-Q4	Increased	560,524	+48.0%	$184.1M	2.0%	$328.51	66
2024-Q3	Increased	378,695	+263.5%	$126.7M	1.3%	$334.58	77
2024-Q2	Increased	104,187	+60.1%	$28.5M	0.3%	$273.11	49
2024-Q1	Increased	65,092	+1353.9%	$22.5M	0.2%	$345.87	55
2023-Q4	Decreased	4,477	-1.1%	$1.4M	0.0%	$322.89	0
2023-Q3	Increased	4,529	+3.1%	$1.6M	0.0%	$358.45	26
2023-Q2	Decreased	4,393	-86.2%	$1.7M	0.0%	$379.12	0
2023-Q1	Decreased	31,797	-0.3%	$15.2M	0.1%	$479.02	0
2022-Q4	Decreased	31,896	-52.1%	$13.4M	0.1%	$420.49	0
2022-Q3	Increased	66,665	+4.3%	$27.8M	0.3%	$417.14	36
2022-Q2	Increased	63,903	+3.5%	$31.6M	0.3%	$495.00	36
2022-Q1	Increased	61,736	+10.7%	$34.8M	0.3%	$563.23	38
2021-Q4	Increased	55,750	+7.3%	$42.1M	0.4%	$755.57	37
2021-Q3	Decreased	51,940	-0.4%	$38.7M	0.4%	$745.95	0
2021-Q2	Increased	52,134	+1.6%	$33.6M	0.3%	$644.29	35
2021-Q1	Increased	51,301	+4.0%	$29.3M	0.3%	$571.17	36
2020-Q4	Decreased	49,311	-23.4%	$28.7M	0.3%	$582.94	0
2020-Q3	Decreased	64,393	-11.4%	$33.2M	0.5%	$515.46	0
2020-Q2	Decreased	72,686	-54.2%	$32.8M	0.5%	$451.49	0
2020-Q1	Decreased	158,814	-29.9%	$55.7M	1.0%	$350.56	0
2019-Q4	Increased	226,498	+1.0%	$83.8M	1.1%	$370.03	47
2019-Q3	Decreased	224,172	-3.1%	$74.6M	1.0%	$332.74	0
2019-Q2	Decreased	231,318	-3.8%	$72.3M	0.9%	$312.59	0
2019-Q1	First report	240,349	-	$73.5M	0.9%	$305.68	0

Other major holders of BIO: FMR LLC