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

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$4.01M Sell
13,664
-2,079
-13% -$590K ﹤0.01% 1358
2026
Q1
$4.39M Buy
+15,743
New +$4.53M ﹤0.01% 1200
2025
Q4
– Sell
-13,711
Closed -$3.84M – 1838
2025
Q3
$3.84M Sell
13,711
-10,266
-43% -$2.79M ﹤0.01% 1257
2025
Q2
$5.79M Buy
+23,977
New +$5.67M ﹤0.01% 1112
2025
Q1
– Sell
-36,956
Closed -$12.1M – 1813
2024
Q4
$12.1M Buy
36,956
+29,707
+410% +$10.1M 0.01% 768
2024
Q3
$2.43M Buy
+7,249
New +$2.3M ﹤0.01% 1183
2024
Q2
– Sell
-8,972
Closed -$3.1M – 1530
2024
Q1
$3.1M Buy
+8,972
New +$2.95M ﹤0.01% 1027
2023
Q2
– Sell
-11,804
Closed -$5.65M – 1224
2023
Q1
$5.65M Sell
11,804
-22,745
-66% -$10.6M 0.01% 670
2022
Q4
$14.5M Buy
34,549
+1,521
+5% +$614K 0.02% 451
2022
Q3
$13.8M Buy
33,028
+5,487
+20% +$2.74M 0.02% 452
2022
Q2
$13.6M Sell
27,541
-56,567
-67% -$29.5M 0.02% 443
2022
Q1
$47.4M Buy
84,108
+1,701
+2% +$1.03M 0.06% 259
2021
Q4
$62.3M Sell
82,407
-7,704
-9% -$5.77M 0.08% 254
2021
Q3
$67.2M Buy
90,111
+287
+0.3% +$215K 0.08% 254
2021
Q2
$57.9M Buy
89,824
+30,572
+52% +$18.6M 0.07% 305
2021
Q1
$33.8M Buy
59,252
+15,859
+37% +$9.39M 0.05% 402
2020
Q4
$25.3M Buy
43,393
+22,176
+105% +$12.6M 0.04% 513
2020
Q3
$10.9M Buy
21,217
+4,724
+29% +$2.39M 0.02% 794
2020
Q2
$7.45M Sell
16,493
-5,000
-23% -$2.21M 0.01% 892
2020
Q1
$7.54M Buy
21,493
+15,303
+247% +$5.63M 0.02% 576
2019
Q4
$2.29M Sell
6,190
-12,807
-67% -$4.52M 0.01% 1101
2019
Q3
$6.32M Sell
18,997
-34,752
-65% -$11.3M 0.01% 631
2019
Q2
$16.8M Sell
53,749
-11,657
-18% -$3.49M 0.04% 381
2019
Q1
$20M Buy
65,406
+43,752
+202% +$11.8M 0.05% 360
2018
Q4
$5.03M Buy
21,654
+14,854
+218% +$3.99M 0.01% 580
2018
Q3
$2.13M Buy
+6,800
New +$2.11M ﹤0.01% 674
2018
Q2
– Sell
-10,000
Closed -$2.5M – 1082
2018
Q1
$2.5M Buy
10,000
+1,200
+14% +$306K 0.01% 708
2017
Q4
$2.1M Buy
8,800
+5,400
+159% +$1.31M 0.01% 809
2017
Q3
$756K Sell
3,400
-9,600
-74% -$2.16M ﹤0.01% 871
2017
Q2
$2.94M Buy
13,000
+2,200
+20% +$479K 0.01% 576
2017
Q1
$2.15M Buy
+10,800
New +$2.08M 0.01% 802
2016
Q4
– Sell
-5,745
Closed -$941K – 1690
2016
Q3
$941K Buy
+5,745
New +$872K ﹤0.01% 1088
2016
Q2
– Sell
-49,796
Closed -$6.81M – 1334
2016
Q1
$6.81M Sell
49,796
-17,729
-26% -$2.33M 0.03% 476
2015
Q4
$9.36M Buy
67,525
+1,500
+2% +$208K 0.04% 366
2015
Q3
$8.87M Buy
66,025
+6,615
+11% +$952K 0.04% 374
2015
Q2
$8.95M Buy
59,410
+5,690
+11% +$814K 0.05% 291
2015
Q1
$7.26M Sell
53,720
-1,275
-2% -$158K 0.04% 341
2014
Q4
$6.63M Buy
54,995
+1,925
+4% +$222K 0.04% 386
2014
Q3
$6.02M Buy
+53,070
New +$6.29M 0.03% 372
2014
Q2
– Sell
-25,257
Closed -$3.24M – 982
2014
Q1
$3.24M Buy
+25,257
New +$3.24M 0.02% 537
2013
Q4
– Sell
-3,840
Closed -$451K – 1147
2013
Q3
$451K Sell
3,840
-15,231
-80% -$1.8M ﹤0.01% 805
2013
Q2
$2.14M Buy
+19,071
New +$2.24M 0.02% 446

Other funds holding BIO

Arrowstreet Capital's BIO Position: Q2 2026 in Review

Arrowstreet Capital reduced its Bio-Rad Laboratories Class A (BIO) stake by 13% in Q2 2026, selling an estimated $590K and leaving 13,664 shares worth $4.01M. The position accounts for ﹤0.01% of the portfolio, ranked #1358.

Arrowstreet Capital first reported a position in BIO in Q2 2013 and has held it in 42 quarters since. The position peaked at $67.2M in Q3 2021. 399 funds tracked by Wall St. Rank hold BIO as of Q2 2026.

  • Arrowstreet Capital held 13,664 shares of Bio-Rad Laboratories Class A worth $4.01M as of Q2 2026.
  • Arrowstreet Capital sold 2,079 Bio-Rad Laboratories Class A shares in Q2 2026, an estimated $590K.
  • Bio-Rad Laboratories Class A made up ﹤0.01% of Arrowstreet Capital's portfolio in Q2 2026, its #1358 holding.
  • Arrowstreet Capital first reported a position in Bio-Rad Laboratories Class A in Q2 2013 and has held it in 42 quarters since.
  • Arrowstreet Capital's Bio-Rad Laboratories Class A position peaked at $67.2M in Q3 2021.
  • 399 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q2 2026.

Based on Arrowstreet Capital's 13F filing for Q2 2026, filed 13 Aug 2026.