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Select Equity Group’s Bio-Rad Laboratories Class A BIO Stock Holding History

Select Equity Group’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
Q1 		$13.5M Buy
+48,436
New +$13.9M 0.07% 124
2025
Q3 		– Sell
-255,989
Closed -$61.8M – 169
2025
Q2 		$61.8M Sell
255,989
-9,191
-3% -$2.17M 0.26% 68
2025
Q1 		$64.6M Sell
265,180
-195,478
-42% -$58.8M 0.28% 62
2024
Q4 		$151M Sell
460,658
-247,794
-35% -$84.1M 0.6% 48
2024
Q3 		$237M Buy
708,452
+58,930
+9% +$18.7M 0.85% 37
2024
Q2 		$177M Buy
649,522
+134,856
+26% +$39.2M 0.7% 39
2024
Q1 		$178M Buy
514,666
+322,242
+167% +$106M 0.63% 42
2023
Q4 		$62.1M Buy
192,424
+134,798
+234% +$42.2M 0.22% 70
2023
Q3 		$20.7M Sell
57,626
-42,954
-43% -$16.6M 0.08% 102
2023
Q2 		$38.1M Buy
+100,580
New +$40.9M 0.14% 92
2019
Q1 		– Sell
-59,550
Closed -$13.8M – 98
2018
Q4 		$13.8M Sell
59,550
-127,373
-68% -$34.2M 0.1% 84
2018
Q3 		$58.5M Buy
186,923
+142,604
+322% +$44.3M 0.43% 54
2018
Q2 		$12.8M Buy
+44,319
New +$12.2M 0.1% 82
2017
Q1 		– Sell
-46,174
Closed -$8.42M – 92
2016
Q4 		$8.42M Sell
46,174
-20,367
-31% -$3.47M 0.07% 84
2016
Q3 		$10.9M Sell
66,541
-17,224
-21% -$2.61M 0.09% 89
2016
Q2 		$12M Sell
83,765
-2,109
-2% -$301K 0.11% 87
2016
Q1 		$11.7M Buy
85,874
+44,031
+105% +$5.78M 0.1% 84
2015
Q4 		$5.8M Sell
41,843
-8,717
-17% -$1.21M 0.06% 100
2015
Q3 		$6.79M Sell
50,560
-15,500
-23% -$2.23M 0.06% 100
2015
Q2 		$9.95M Sell
66,060
-41,038
-38% -$5.87M 0.09% 92
2015
Q1 		$14.5M Sell
107,098
-98,134
-48% -$12.2M 0.13% 88
2014
Q4 		$24.7M Buy
+205,232
New +$23.6M 0.23% 72

Other funds holding BIO

First Eagle Investment Management
First Eagle Investment Management New York $59B AUM 32.99% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
AI
Ariel Investments Chicago, Illinois $8.93B AUM 29.58% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $24.3B AUM 34.41% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Select Equity Group's BIO Position: Q1 2026 in Review

Select Equity Group opened a new position in Bio-Rad Laboratories Class A (BIO) in Q1 2026: 48,436 shares worth $13.5M. The stake represents 0.07% of the portfolio and ranks #124 among its holdings. This is a return to the name: Select Equity Group previously reported a position in BIO as recently as Q2 2025.

Select Equity Group first reported a position in BIO in Q4 2014 and has held it in 22 quarters since. The position peaked at $237M in Q3 2024. 391 funds tracked by Wall St. Rank hold BIO as of Q1 2026.

  • Select Equity Group held 48,436 shares of Bio-Rad Laboratories Class A worth $13.5M as of Q1 2026.
  • Bio-Rad Laboratories Class A was a new Select Equity Group position in Q1 2026.
  • Bio-Rad Laboratories Class A made up 0.07% of Select Equity Group's portfolio in Q1 2026, its #124 holding.
  • Select Equity Group first reported a position in Bio-Rad Laboratories Class A in Q4 2014 and has held it in 22 quarters since.
  • Select Equity Group's Bio-Rad Laboratories Class A position peaked at $237M in Q3 2024.
  • 391 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q1 2026.

Based on Select Equity Group's 13F filing for Q1 2026, filed 15 May 2026.