PCM
BIO icon

Portolan Capital Management’s Bio-Rad Laboratories Class A BIO Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$15.2M Buy
62,784
+41,044
+189% +$9.9M 0.95% 36
2025
Q1
$5.29M Sell
21,740
-8,846
-29% -$2.15M 0.4% 70
2024
Q4
$10M Buy
30,586
+8,686
+40% +$2.85M 0.68% 51
2024
Q3
$7.33M Sell
21,900
-3,250
-13% -$1.09M 0.53% 65
2024
Q2
$6.87M Sell
25,150
-65,842
-72% -$18M 0.57% 64
2024
Q1
$31.5M Buy
90,992
+33,718
+59% +$11.7M 2.4% 5
2023
Q4
$18.5M Buy
57,274
+14,788
+35% +$4.77M 1.62% 14
2023
Q3
$15.2M Sell
42,486
-22,553
-35% -$8.08M 1.42% 21
2023
Q2
$24.7M Buy
65,039
+10,679
+20% +$4.05M 2.18% 10
2023
Q1
$26M Sell
54,360
-7,693
-12% -$3.69M 2.48% 5
2022
Q4
$26.1M Buy
62,053
+17,126
+38% +$7.2M 2.59% 3
2022
Q3
$18.7M Buy
44,927
+2,965
+7% +$1.24M 1.98% 11
2022
Q2
$20.8M Buy
41,962
+7,659
+22% +$3.79M 2.09% 8
2022
Q1
$19.3M Buy
34,303
+14,582
+74% +$8.21M 1.54% 17
2021
Q4
$14.9M Sell
19,721
-5,222
-21% -$3.95M 1% 41
2021
Q3
$18.6M Buy
24,943
+13,394
+116% +$9.99M 1.36% 28
2021
Q2
$7.44M Sell
11,549
-539
-4% -$347K 0.54% 72
2021
Q1
$6.9M Sell
12,088
-31
-0.3% -$17.7K 0.54% 78
2020
Q4
$7.07M Sell
12,119
-5,738
-32% -$3.35M 0.64% 60
2020
Q3
$9.21M Sell
17,857
-18,278
-51% -$9.42M 1.04% 29
2020
Q2
$16.3M Sell
36,135
-29,521
-45% -$13.3M 1.86% 9
2020
Q1
$23M Sell
65,656
-15,185
-19% -$5.32M 3.45% 3
2019
Q4
$29.9M Buy
80,841
+1,046
+1% +$387K 3.02% 7
2019
Q3
$26.6M Sell
79,795
-5,053
-6% -$1.68M 2.99% 8
2019
Q2
$26.5M Buy
84,848
+4,557
+6% +$1.42M 2.85% 9
2019
Q1
$24.5M Buy
80,291
+33,903
+73% +$10.4M 2.52% 5
2018
Q4
$10.8M Sell
46,388
-6,002
-11% -$1.39M 1.34% 28
2018
Q3
$16.4M Sell
52,390
-1,385
-3% -$434K 1.62% 21
2018
Q2
$15.5M Sell
53,775
-2,435
-4% -$703K 1.58% 20
2018
Q1
$14.1M Sell
56,210
-12,870
-19% -$3.22M 1.54% 22
2017
Q4
$16.5M Sell
69,080
-8,527
-11% -$2.04M 1.81% 15
2017
Q3
$17.2M Sell
77,607
-11,324
-13% -$2.52M 2.06% 8
2017
Q2
$20.1M Buy
88,931
+9,685
+12% +$2.19M 2.58% 6
2017
Q1
$15.8M Buy
79,246
+237
+0.3% +$47.2K 2.05% 8
2016
Q4
$14.4M Sell
79,009
-28,534
-27% -$5.2M 1.94% 6
2016
Q3
$17.6M Buy
107,543
+21,946
+26% +$3.6M 2.42% 7
2016
Q2
$12.2M Buy
85,597
+7,489
+10% +$1.07M 1.76% 15
2016
Q1
$10.7M Buy
78,108
+52,031
+200% +$7.11M 1.43% 19
2015
Q4
$3.62M Buy
+26,077
New +$3.62M 0.46% 81
2014
Q4
Sell
-51,339
Closed -$5.82M 111
2014
Q3
$5.82M Buy
51,339
+30,832
+150% +$3.5M 1.32% 22
2014
Q2
$2.46M Buy
+20,507
New +$2.46M 0.54% 74