Westport Asset Management’s Bio-Rad Laboratories Class A BIO Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2025 Q2	$724K	Hold	3,000	–	–	0.32%	45
2025 Q1	$731K	Hold	3,000	–	–	0.35%	44
2024 Q4	$986K	Hold	3,000	–	–	0.47%	38
2024 Q3	$1M	Hold	3,000	–	–	0.47%	38
2024 Q2	$819K	Buy	3,000 +1,000	+50%	+$273K	0.41%	39
2024 Q1	$692K	Hold	2,000	–	–	0.35%	43
2023 Q4	$646K	Hold	2,000	–	–	0.35%	44
2023 Q3	$717K	Hold	2,000	–	–	0.42%	43
2023 Q2	$758K	Buy	2,000 +500	+33%	+$190K	0.43%	43
2023 Q1	$719K	Hold	1,500	–	–	0.43%	43
2022 Q4	$631K	Hold	1,500	–	–	0.4%	44
2022 Q3	$626K	Hold	1,500	–	–	0.4%	43
2022 Q2	$743K	Hold	1,500	–	–	0.44%	44
2022 Q1	$1.13M	Hold	1,500	–	–	0.51%	39
2021 Q4	$1.13M	Hold	1,500	–	–	0.51%	39
2021 Q3	$1.12M	Hold	1,500	–	–	0.54%	38
2021 Q2	$966K	Hold	1,500	–	–	0.42%	41
2021 Q1	$857K	Hold	1,500	–	–	0.39%	44
2020 Q4	$874K	Hold	1,500	–	–	0.43%	39
2020 Q3	$773K	Hold	1,500	–	–	0.47%	38
2020 Q2	$677K	Hold	1,500	–	–	0.43%	38
2020 Q1	$526K	Buy	+1,500	New	+$526K	0.43%	39