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Winslow Asset Management’s Bio-Rad Laboratories Class A BIO Stock Holding History

Winslow 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
Q1 		$6.74M Sell
24,169
-229
-0.9% -$66K 1.31% 36
2025
Q4 		$7.39M Buy
24,398
+983
+4% +$307K 1.36% 32
2025
Q3 		$6.57M Buy
23,415
+389
+2% +$106K 1.23% 34
2025
Q2 		$5.56M Sell
23,026
-866
-4% -$205K 1.12% 39
2025
Q1 		$5.82M Sell
23,892
-328
-1% -$98.7K 1.28% 36
2024
Q4 		$7.96M Sell
24,220
-42
-0.2% -$14.3K 1.59% 23
2024
Q3 		$8.12M Buy
24,262
+385
+2% +$122K 1.5% 24
2024
Q2 		$6.52M Buy
23,877
+1,098
+5% +$319K 1.28% 36
2024
Q1 		$7.88M Buy
22,779
+723
+3% +$238K 1.48% 28
2023
Q4 		$7.12M Buy
22,056
+613
+3% +$192K 1.45% 29
2023
Q3 		$7.69M Buy
21,443
+568
+3% +$219K 1.78% 20
2023
Q2 		$7.91M Buy
20,875
+792
+4% +$322K 1.7% 20
2023
Q1 		$9.62M Sell
20,083
-228
-1% -$107K 2.25% 15
2022
Q4 		$8.54M Buy
20,311
+1,502
+8% +$606K 2.02% 18
2022
Q3 		$7.85M Buy
18,809
+167
+0.9% +$83.3K 2.04% 18
2022
Q2 		$9.23M Buy
18,642
+352
+2% +$183K 2.23% 14
2022
Q1 		$10.3M Sell
18,290
-283
-2% -$171K 2.03% 15
2021
Q4 		$14M Buy
18,573
+39
+0.2% +$29.2K 2.48% 12
2021
Q3 		$13.8M Sell
18,534
-565
-3% -$423K 2.67% 11
2021
Q2 		$12.3M Sell
19,099
-15
-0.1% -$9.13K 2.29% 14
2021
Q1 		$10.9M Sell
19,114
-1,910
-9% -$1.13M 2.21% 15
2020
Q4 		$12.3M Sell
21,024
-429
-2% -$244K 2.59% 12
2020
Q3 		$11.1M Sell
21,453
-895
-4% -$453K 2.82% 9
2020
Q2 		$10.1M Sell
22,348
-192
-0.9% -$84.7K 2.72% 10
2020
Q1 		$7.9M Buy
22,540
+243
+1% +$89.3K 2.6% 13
2019
Q4 		$8.25M Sell
22,297
-11
-0% -$3.88K 1.88% 21
2019
Q3 		$7.42M Sell
22,308
-3,657
-14% -$1.19M 1.85% 23
2019
Q2 		$8.12M Sell
25,965
-1,415
-5% -$424K 1.8% 21
2019
Q1 		$8.37M Sell
27,380
-247
-0.9% -$66.7K 1.76% 26
2018
Q4 		$6.42M Sell
27,627
-220
-0.8% -$59K 1.49% 30
2018
Q3 		$8.72M Sell
27,847
-429
-2% -$133K 1.59% 29
2018
Q2 		$8.16M Buy
28,276
+325
+1% +$89.7K 1.51% 32
2018
Q1 		$6.99M Sell
27,951
-91
-0.3% -$23.2K 1.34% 39
2017
Q4 		$6.69M Buy
28,042
+1,112
+4% +$269K 1.23% 40
2017
Q3 		$5.98M Sell
26,930
-305
-1% -$68.6K 1.16% 45
2017
Q2 		$6.16M Buy
27,235
+459
+2% +$100K 1.25% 43
2017
Q1 		$5.34M Sell
26,776
-1,121
-4% -$216K 1.09% 47
2016
Q4 		$5.08M Buy
+27,897
New +$4.76M 1.07% 47

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

Winslow Asset Management's BIO Position: Q1 2026 in Review

Winslow Asset Management reduced its Bio-Rad Laboratories Class A (BIO) stake by 0.94% in Q1 2026, selling an estimated $66K and leaving 24,169 shares worth $6.74M. The position accounts for 1.31% of the portfolio, ranked #36.

Winslow Asset Management first reported a position in BIO in Q4 2016 and has held it in 38 quarters since. The position peaked at $14M in Q4 2021. 392 funds tracked by Wall St. Rank hold BIO as of Q1 2026.

  • Winslow Asset Management held 24,169 shares of Bio-Rad Laboratories Class A worth $6.74M as of Q1 2026.
  • Winslow Asset Management sold 229 Bio-Rad Laboratories Class A shares in Q1 2026, an estimated $66K.
  • Bio-Rad Laboratories Class A made up 1.31% of Winslow Asset Management's portfolio in Q1 2026, its #36 holding.
  • Winslow Asset Management first reported a position in Bio-Rad Laboratories Class A in Q4 2016 and has held it in 38 quarters since.
  • Winslow Asset Management's Bio-Rad Laboratories Class A position peaked at $14M in Q4 2021.
  • 392 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q1 2026.

Based on Winslow Asset Management's 13F filing for Q1 2026, filed 5 May 2026.