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CenterBook Partners’s Bio-Rad Laboratories Class A BIO Stock Holding History

CenterBook Partners’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
2026
Q2 		– Sell
-7,824
Closed -$2.18M – 722
2026
Q1 		$2.18M Buy
7,824
+4,766
+156% +$1.37M 0.12% 225
2025
Q4 		$927K Sell
3,058
-6,071
-67% -$1.89M 0.05% 383
2025
Q3 		$2.56M Sell
9,129
-5,224
-36% -$1.42M 0.13% 221
2025
Q2 		$3.46M Sell
14,353
-12,301
-46% -$2.91M 0.19% 139
2025
Q1 		$6.49M Buy
26,654
+14,835
+126% +$4.46M 0.41% 65
2024
Q4 		$3.88M Buy
11,819
+7,635
+182% +$2.59M 0.23% 128
2024
Q3 		$1.4M Sell
4,184
-11,902
-74% -$3.78M 0.09% 254
2024
Q2 		$4.39M Buy
16,086
+1,199
+8% +$349K 0.27% 135
2024
Q1 		$5.15M Buy
14,887
+4,833
+48% +$1.59M 0.36% 96
2023
Q4 		$3.25M Buy
10,054
+3,039
+43% +$953K 0.4% 70
2023
Q3 		$2.51M Sell
7,015
-6,224
-47% -$2.4M 0.31% 98
2023
Q2 		$5.02M Buy
13,239
+10,386
+364% +$4.23M 0.63% 26
2023
Q1 		$1.37M Sell
2,853
-2,430
-46% -$1.14M 0.19% 173
2022
Q4 		$2.22M Buy
5,283
+3,363
+175% +$1.36M 0.37% 84
2022
Q3 		$801K Sell
1,920
-159
-8% -$79.3K 0.15% 222
2022
Q2 		$1.03M Buy
+2,079
New +$1.08M 0.22% 166

Other funds holding BIO

First Eagle Investment Management
First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AI
Ariel Investments Chicago, Illinois $10B AUM 42.59% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
EARNEST Partners
EARNEST Partners Atlanta, Georgia $27.7B AUM 52.44% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

CenterBook Partners's BIO Position: Q2 2026 in Review

CenterBook Partners sold out of Bio-Rad Laboratories Class A (BIO) in Q2 2026, closing a stake of 7,824 shares — an estimated $2.18M sold.

CenterBook Partners first reported a position in BIO in Q2 2022 and held it in 16 quarters. The position peaked at $6.49M in Q1 2025. 398 funds tracked by Wall St. Rank hold BIO as of Q2 2026.

  • CenterBook Partners reported no remaining Bio-Rad Laboratories Class A position as of Q2 2026 after selling out during the quarter.
  • CenterBook Partners sold 7,824 Bio-Rad Laboratories Class A shares in Q2 2026, an estimated $2.18M.
  • CenterBook Partners first reported a position in Bio-Rad Laboratories Class A in Q2 2022 and held it in 16 quarters.
  • CenterBook Partners's Bio-Rad Laboratories Class A position peaked at $6.49M in Q1 2025.
  • 398 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q2 2026.

Based on CenterBook Partners's 13F filing for Q2 2026, filed 11 Aug 2026.