Vanguard Personalized Indexing Management
BIO icon

Vanguard Personalized Indexing Management’s Bio-Rad Laboratories Class A BIO Stock Holding History

Vanguard Personalized Indexing 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 		$854K Sell
2,909
-405
-12% -$115K 0.01% 1084
2026
Q1 		$924K Buy
3,314
+161
+5% +$46.4K 0.01% 970
2025
Q4 		$955K Buy
3,153
+9
+0.3% +$2.81K 0.01% 934
2025
Q3 		$882K Buy
3,144
+121
+4% +$32.9K 0.01% 970
2025
Q2 		$730K Buy
3,023
+900
+42% +$213K 0.01% 1027
2025
Q1 		$517K Sell
2,123
-250
-11% -$75.2K 0.01% 1098
2024
Q4 		$780K Buy
2,373
+522
+28% +$177K 0.01% 897
2024
Q3 		$619K Buy
1,851
+120
+7% +$38.1K 0.01% 1003
2024
Q2 		$473K Sell
1,731
-152
-8% -$44.2K 0.01% 1068
2024
Q1 		$651K Buy
1,883
+305
+19% +$100K 0.01% 873
2023
Q4 		$510K Buy
1,578
+332
+27% +$104K 0.01% 991
2023
Q3 		$447K Buy
1,246
+55
+5% +$21.2K 0.01% 926
2023
Q2 		$452K Sell
1,191
-194
-14% -$78.9K 0.01% 936
2023
Q1 		$663K Sell
1,385
-150
-10% -$70.2K 0.02% 735
2022
Q4 		$645K Buy
1,535
+568
+59% +$229K 0.03% 697
2022
Q3 		$403K Buy
967
+349
+56% +$174K 0.02% 854
2022
Q2 		$306K Sell
618
-190
-24% -$99K 0.01% 981
2022
Q1 		$455K Sell
808
-44
-5% -$26.5K 0.02% 863
2021
Q4 		$644K Buy
852
+245
+40% +$183K 0.04% 599
2021
Q3 		$453K Sell
607
-45
-7% -$33.7K 0.04% 571
2021
Q2 		$420K Buy
652
+23
+4% +$14K 0.04% 568
2021
Q1 		$359K Buy
629
+268
+74% +$159K 0.05% 437
2020
Q4 		$210K Buy
+361
New +$206K 0.05% 491

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

Vanguard Personalized Indexing Management's BIO Position: Q2 2026 in Review

Vanguard Personalized Indexing Management reduced its Bio-Rad Laboratories Class A (BIO) stake by 12% in Q2 2026, selling an estimated $115K and leaving 2,909 shares worth $854K. The position accounts for 0.01% of the portfolio, ranked #1084.

Vanguard Personalized Indexing Management first reported a position in BIO in Q4 2020 and has held it in 23 quarters since. The position peaked at $955K in Q4 2025. 398 funds tracked by Wall St. Rank hold BIO as of Q2 2026.

  • Vanguard Personalized Indexing Management held 2,909 shares of Bio-Rad Laboratories Class A worth $854K as of Q2 2026.
  • Vanguard Personalized Indexing Management sold 405 Bio-Rad Laboratories Class A shares in Q2 2026, an estimated $115K.
  • Bio-Rad Laboratories Class A made up 0.01% of Vanguard Personalized Indexing Management's portfolio in Q2 2026, its #1084 holding.
  • Vanguard Personalized Indexing Management first reported a position in Bio-Rad Laboratories Class A in Q4 2020 and has held it in 23 quarters since.
  • Vanguard Personalized Indexing Management's Bio-Rad Laboratories Class A position peaked at $955K in Q4 2025.
  • 398 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q2 2026.

Based on Vanguard Personalized Indexing Management's 13F filing for Q2 2026, filed 11 Aug 2026.