Campbell & Co Investment Adviser’s Bio-Rad Laboratories Class A BIO Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-31,478	Closed	-$9.54M	–	1084
2025 Q4	$9.54M	Buy	31,478 +29,238	+1,305%	+$9.12M	0.46%	17
2025 Q3	$628K	Buy	+2,240	New	+$610K	0.05%	626
2025 Q2	–	Sell	-6,443	Closed	-$1.57M	–	1149
2025 Q1	$1.57M	Buy	+6,443	New	+$1.94M	0.12%	265
2024 Q1	–	Sell	-8,080	Closed	-$2.61M	–	1113
2023 Q4	$2.61M	Buy	+8,080	New	+$2.53M	0.24%	75
2023 Q3	–	Sell	-1,317	Closed	-$499K	–	951
2023 Q2	$499K	Buy	+1,317	New	+$536K	0.09%	438
2022 Q3	–	Sell	-1,167	Closed	-$578K	–	712
2022 Q2	$578K	Buy	1,167 +502	+75%	+$261K	0.16%	227
2022 Q1	$375K	Buy	+665	New	+$401K	0.1%	385
2021 Q4	–	Sell	-350	Closed	-$261K	–	625
2021 Q3	$261K	Sell	350 -450	-56%	-$337K	0.09%	418
2021 Q2	$515K	Buy	+800	New	+$487K	0.21%	150
2020 Q1	–	Sell	-1,249	Closed	-$462K	–	71
2019 Q4	$462K	Buy	+1,249	New	+$440K	0.14%	257
2014 Q3	–	Sell	-4,821	Closed	-$577K	–	194
2014 Q2	$577K	Buy	+4,821	New	+$589K	0.23%	117
2013 Q4	–	Sell	-1,745	Closed	-$205K	–	219
2013 Q3	$205K	Sell	1,745 -2,621	-60%	-$309K	0.04%	221
2013 Q2	$490K	Buy	+4,366	New	+$512K	0.09%	211