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

AllianceBernstein’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 		$7.42M Buy
24,487
+1,206
+5% +$347K ﹤0.01% 1357
2025
Q4 		$7.05M Sell
23,281
-2,526
-10% -$788K ﹤0.01% 1382
2025
Q3 		$7.24M Buy
25,807
+3,284
+15% +$894K ﹤0.01% 1354
2025
Q2 		$5.44M Sell
22,523
-3,892
-15% -$920K ﹤0.01% 1444
2025
Q1 		$6.43M Sell
26,415
-473
-2% -$142K ﹤0.01% 1355
2024
Q4 		$8.83M Sell
26,888
-389
-1% -$132K ﹤0.01% 1239
2024
Q3 		$9.13M Buy
27,277
+4,019
+17% +$1.28M ﹤0.01% 1231
2024
Q2 		$6.35M Sell
23,258
-1,613
-6% -$469K ﹤0.01% 1394
2024
Q1 		$8.6M Sell
24,871
-416,831
-94% -$137M ﹤0.01% 1231
2023
Q4 		$143M Buy
441,702
+6,949
+2% +$2.18M 0.05% 281
2023
Q3 		$156M Sell
434,753
-24,444
-5% -$9.43M 0.07% 246
2023
Q2 		$174M Sell
459,197
-84,373
-16% -$34.3M 0.07% 232
2023
Q1 		$260M Buy
543,570
+62,674
+13% +$29.3M 0.11% 161
2022
Q4 		$202M Sell
480,896
-52,869
-10% -$21.3M 0.09% 205
2022
Q3 		$223M Sell
533,765
-82,551
-13% -$41.2M 0.11% 168
2022
Q2 		$305M Sell
616,316
-36,431
-6% -$19M 0.14% 142
2022
Q1 		$368M Buy
652,747
+66,258
+11% +$39.9M 0.14% 141
2021
Q4 		$443M Buy
586,489
+40,012
+7% +$29.9M 0.16% 118
2021
Q3 		$408M Buy
546,477
+22,502
+4% +$16.9M 0.16% 123
2021
Q2 		$338M Buy
523,975
+57,614
+12% +$35.1M 0.14% 144
2021
Q1 		$266M Buy
466,361
+79,174
+20% +$46.9M 0.12% 170
2020
Q4 		$226M Buy
387,187
+23,539
+6% +$13.4M 0.11% 172
2020
Q3 		$187M Sell
363,648
-37,282
-9% -$18.9M 0.1% 172
2020
Q2 		$181M Buy
400,930
+16,449
+4% +$7.26M 0.11% 166
2020
Q1 		$135M Buy
384,481
+6,148
+2% +$2.26M 0.1% 185
2019
Q4 		$140M Buy
378,333
+10,127
+3% +$3.57M 0.08% 228
2019
Q3 		$123M Buy
368,206
+4,469
+1% +$1.46M 0.08% 250
2019
Q2 		$114M Sell
363,737
-3,137
-0.9% -$939K 0.07% 262
2019
Q1 		$112M Buy
366,874
+125,940
+52% +$34M 0.07% 264
2018
Q4 		$56M Sell
240,934
-27,204
-10% -$7.3M 0.04% 436
2018
Q3 		$83.9M Buy
268,138
+10,691
+4% +$3.32M 0.05% 358
2018
Q2 		$74.3M Sell
257,447
-74,670
-22% -$20.6M 0.05% 386
2018
Q1 		$83.1M Buy
332,117
+6,171
+2% +$1.57M 0.06% 340
2017
Q4 		$77.8M Sell
325,946
-3,947
-1% -$956K 0.06% 376
2017
Q3 		$73.3M Buy
329,893
+1,505
+0.5% +$339K 0.05% 379
2017
Q2 		$74.3M Sell
328,388
-6,809
-2% -$1.48M 0.06% 368
2017
Q1 		$66.8M Buy
335,197
+5,647
+2% +$1.09M 0.05% 393
2016
Q4 		$60.1M Buy
329,550
+309,085
+1,510% +$52.7M 0.05% 404
2016
Q3 		$3.35M Buy
20,465
+6,125
+43% +$930K ﹤0.01% 1386
2016
Q2 		$2.05M Sell
14,340
-320
-2% -$45.6K ﹤0.01% 1692
2016
Q1 		$2M Sell
14,660
-65
-0.4% -$8.53K ﹤0.01% 1615
2015
Q4 		$2.04M Sell
14,725
-570
-4% -$79K ﹤0.01% 1593
2015
Q3 		$2.05M Sell
15,295
-100
-0.6% -$14.4K ﹤0.01% 1624
2015
Q2 		$2.32M Sell
15,395
-4,220
-22% -$604K ﹤0.01% 1665
2015
Q1 		$2.65M Sell
19,615
-750
-4% -$93K ﹤0.01% 1524
2014
Q4 		$2.46M Sell
20,365
-50
-0.2% -$5.75K ﹤0.01% 1594
2014
Q3 		$2.31M Sell
20,415
-40
-0.2% -$4.74K ﹤0.01% 1611
2014
Q2 		$2.45M Sell
20,455
-196
-0.9% -$23.9K ﹤0.01% 1623
2014
Q1 		$2.65M Sell
20,651
-489
-2% -$62.7K ﹤0.01% 1500
2013
Q4 		$2.61M Sell
21,140
-976
-4% -$119K ﹤0.01% 1526
2013
Q3 		$2.6M Buy
22,116
+3,006
+16% +$355K ﹤0.01% 1482
2013
Q2 		$2.14M Buy
+19,110
New +$2.24M ﹤0.01% 1557

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

AllianceBernstein's BIO Position: Q1 2026 in Review

AllianceBernstein increased its Bio-Rad Laboratories Class A (BIO) stake by 5.2% in Q1 2026, buying an estimated $347K and bringing the position to 24,487 shares worth $7.42M. The position accounts for ﹤0.01% of the portfolio, ranked #1357.

AllianceBernstein first reported a position in BIO in Q2 2013 and has held it in 52 quarters since. The position peaked at $443M in Q4 2021. 391 funds tracked by Wall St. Rank hold BIO as of Q1 2026.

  • AllianceBernstein held 24,487 shares of Bio-Rad Laboratories Class A worth $7.42M as of Q1 2026.
  • AllianceBernstein bought 1,206 Bio-Rad Laboratories Class A shares in Q1 2026, an estimated $347K.
  • Bio-Rad Laboratories Class A made up ﹤0.01% of AllianceBernstein's portfolio in Q1 2026, its #1357 holding.
  • AllianceBernstein first reported a position in Bio-Rad Laboratories Class A in Q2 2013 and has held it in 52 quarters since.
  • AllianceBernstein's Bio-Rad Laboratories Class A position peaked at $443M in Q4 2021.
  • 391 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q1 2026.

Based on AllianceBernstein's 13F filing for Q1 2026, filed 15 May 2026.