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

Artisan 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
2025
Q4 		– Sell
-86,371
Closed -$24.2M – 345
2025
Q3 		$24.2M Sell
86,371
-31,827
-27% -$8.66M 0.03% 271
2025
Q2 		$28.5M Sell
118,198
-1,670
-1% -$395K 0.04% 266
2025
Q1 		$29.2M Sell
119,868
-29,425
-20% -$8.85M 0.05% 259
2024
Q4 		$49M Buy
149,293
+78
+0.1% +$26.5K 0.07% 237
2024
Q3 		$49.9M Sell
149,215
-8,616
-5% -$2.74M 0.07% 225
2024
Q2 		$43.1M Sell
157,831
-22,009
-12% -$6.4M 0.06% 239
2024
Q1 		$62.2M Buy
179,840
+28,149
+19% +$9.26M 0.09% 199
2023
Q4 		$49M Buy
151,691
+41,937
+38% +$13.1M 0.08% 219
2023
Q3 		$39.3M Sell
109,754
-3,835
-3% -$1.48M 0.07% 222
2023
Q2 		$43.1M Buy
+113,589
New +$46.2M 0.07% 217
2020
Q2 		– Sell
-38,481
Closed -$13.5M – 311
2020
Q1 		$13.5M Sell
38,481
-40,014
-51% -$14.7M 0.03% 254
2019
Q4 		$29M Sell
78,495
-7,462
-9% -$2.63M 0.05% 225
2019
Q3 		$28.6M Buy
85,957
+7,902
+10% +$2.58M 0.05% 216
2019
Q2 		$24.4M Buy
78,055
+11,672
+18% +$3.49M 0.05% 225
2019
Q1 		$20.3M Buy
66,383
+33,080
+99% +$8.93M 0.04% 229
2018
Q4 		$7.73M Buy
33,303
+6,323
+23% +$1.7M 0.02% 245
2018
Q3 		$8.44M Buy
+26,980
New +$8.37M 0.02% 238

Other funds holding BIO

First Eagle Investment Management
First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 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
AI
Ariel Investments Chicago, Illinois $10B AUM 42.59% 1-Year Est. Return
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
VAM
Veritas Asset Management London, United Kingdom $5.56B AUM 3.46% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Artisan Partners's BIO Position: Q4 2025 in Review

Artisan Partners sold out of Bio-Rad Laboratories Class A (BIO) in Q4 2025, closing a stake of 86,371 shares — an estimated $24.2M sold.

Artisan Partners first reported a position in BIO in Q3 2018 and held it in 17 quarters. The position peaked at $62.2M in Q1 2024. 398 funds tracked by Wall St. Rank hold BIO as of Q4 2025.

  • Artisan Partners reported no remaining Bio-Rad Laboratories Class A position as of Q4 2025 after selling out during the quarter.
  • Artisan Partners sold 86,371 Bio-Rad Laboratories Class A shares in Q4 2025, an estimated $24.2M.
  • Artisan Partners first reported a position in Bio-Rad Laboratories Class A in Q3 2018 and held it in 17 quarters.
  • Artisan Partners's Bio-Rad Laboratories Class A position peaked at $62.2M in Q1 2024.
  • 398 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q4 2025.

Based on Artisan Partners's 13F filing for Q4 2025, filed 17 Feb 2026.