Parnassus Investments
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Parnassus Investments’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
$76.6M Sell
317,218
-893
-0.3% -$215K 0.18% 73
2025
Q1
$77.5M Buy
318,111
+7,244
+2% +$1.76M 0.19% 82
2024
Q4
$102M Buy
310,867
+135
+0% +$44.3K 0.23% 64
2024
Q3
$104M Hold
310,732
0.22% 64
2024
Q2
$84.9M Buy
310,732
+72,942
+31% +$19.9M 0.18% 73
2024
Q1
$82.2M Hold
237,790
0.18% 81
2023
Q4
$76.8M Buy
237,790
+16,999
+8% +$5.49M 0.17% 91
2023
Q3
$79.1M Buy
+220,791
New +$79.1M 0.19% 89