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O'Shaughnessy Asset Management’s Bio-Rad Laboratories Class A BIO Stock Holding History

O'Shaughnessy Asset 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
2026
Q2 		$397K Buy
1,351
+570
+73% +$162K ﹤0.01% 1699
2026
Q1 		$218K Sell
781
-43
-5% -$12.4K ﹤0.01% 1947
2025
Q4 		$250K Buy
+824
New +$257K ﹤0.01% 1878
2025
Q1 		– Sell
-746
Closed -$245K – 2308
2024
Q4 		$245K Buy
+746
New +$253K ﹤0.01% 1638
2023
Q4 		– Sell
-620
Closed -$222K – 1742
2023
Q3 		$222K Buy
+620
New +$239K ﹤0.01% 1237
2022
Q4 		– Sell
-785
Closed -$327K – 1399
2022
Q3 		$327K Sell
785
-620
-44% -$309K 0.01% 902
2022
Q2 		$695K Sell
1,405
-972
-41% -$506K 0.01% 607
2022
Q1 		$1.34M Sell
2,377
-610
-20% -$368K 0.02% 473
2021
Q4 		$2.26M Buy
2,987
+315
+12% +$236K 0.04% 351
2021
Q3 		$1.99M Sell
2,672
-2,515
-48% -$1.88M 0.04% 315
2021
Q2 		$3.34M Sell
5,187
-2,767
-35% -$1.68M 0.07% 230
2021
Q1 		$4.54M Sell
7,954
-316
-4% -$187K 0.1% 170
2020
Q4 		$4.82M Sell
8,270
-260
-3% -$148K 0.13% 123
2020
Q3 		$4.4M Buy
8,530
+5,841
+217% +$2.96M 0.13% 105
2020
Q2 		$1.21M Buy
2,689
+2,174
+422% +$959K 0.04% 227
2020
Q1 		$181K Buy
515
+234
+83% +$86K 0.01% 500
2019
Q4 		$104K Buy
+281
New +$99.1K ﹤0.01% 783
2016
Q3 		– Sell
-677
Closed -$97K – 879
2016
Q2 		$97K Hold
677
– – ﹤0.01% 601
2016
Q1 		$92K Sell
677
-4
-0.6% -$525 ﹤0.01% 550
2015
Q4 		$94K Sell
681
-615
-47% -$85.2K ﹤0.01% 564
2015
Q3 		$174K Buy
+1,296
New +$187K ﹤0.01% 510

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 $3.38T AUM 44.17% 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

O'Shaughnessy Asset Management's BIO Position: Q2 2026 in Review

O'Shaughnessy Asset Management increased its Bio-Rad Laboratories Class A (BIO) stake by 73% in Q2 2026, buying an estimated $162K and bringing the position to 1,351 shares worth $397K. The position accounts for ﹤0.01% of the portfolio, ranked #1699.

O'Shaughnessy Asset Management first reported a position in BIO in Q3 2015 and has held it in 21 quarters since. The position peaked at $4.82M in Q4 2020. 399 funds tracked by Wall St. Rank hold BIO as of Q2 2026.

  • O'Shaughnessy Asset Management held 1,351 shares of Bio-Rad Laboratories Class A worth $397K as of Q2 2026.
  • O'Shaughnessy Asset Management bought 570 Bio-Rad Laboratories Class A shares in Q2 2026, an estimated $162K.
  • Bio-Rad Laboratories Class A made up ﹤0.01% of O'Shaughnessy Asset Management's portfolio in Q2 2026, its #1699 holding.
  • O'Shaughnessy Asset Management first reported a position in Bio-Rad Laboratories Class A in Q3 2015 and has held it in 21 quarters since.
  • O'Shaughnessy Asset Management's Bio-Rad Laboratories Class A position peaked at $4.82M in Q4 2020.
  • 399 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q2 2026.

Based on O'Shaughnessy Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.