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FAM
Fred Alger Management’s
Bio-Rad Laboratories Class A
BIO
Stock Holding History
Fred Alger Management’s Portfolio
BIO Stock Details
BIO Fund Activity
Bought
Maintained
Sold
Quarter
Market Value
Status
Shares
Change in
Stake
Trade Value
Portfolio Weight
Portfolio Position
2025
Q3
–
Sell
-1,083
Closed
-$261K
–
455
2025
Q2
$261K
Buy
1,083
+89
+9%
+$21K
﹤0.01%
405
2025
Q1
$242K
Buy
+994
New
+$299K
﹤0.01%
405
2020
Q3
–
Sell
-11,612
Closed
-$5.24M
–
468
2020
Q2
$5.24M
Buy
11,612
+1,986
+21%
+$876K
0.02%
224
2020
Q1
$3.37M
Buy
9,626
+2,306
+32%
+$848K
0.01%
237
2019
Q4
$2.71M
Buy
7,320
+3,320
+83%
+$1.17M
0.01%
275
2019
Q3
$1.33M
Buy
+4,000
New
+$1.3M
0.01%
313
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Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
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