Ariel Investments’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
Q1 | $219M | Buy |
785,961
+21,289
| +3% | +$6.13M | 2.45% | 16 |
|
|
2025
Q4 | $232M | Sell |
764,672
-44,808
| -6% | -$14M | 2.5% | 15 |
|
|
2025
Q3 | $227M | Sell |
809,480
-9,144
| -1% | -$2.49M | 2.43% | 15 |
|
|
2025
Q2 | $198M | Buy |
818,624
+93,964
| +13% | +$22.2M | 2.24% | 16 |
|
|
2025
Q1 | $176M | Buy |
724,660
+164,136
| +29% | +$49.4M | 2.07% | 20 |
|
|
2024
Q4 | $184M | Buy |
560,524
+181,829
| +48% | +$61.7M | 1.96% | 24 |
|
|
2024
Q3 | $127M | Buy |
378,695
+274,508
| +263% | +$87.2M | 1.29% | 35 |
|
|
2024
Q2 | $28.5M | Buy |
104,187
+39,095
| +60% | +$11.4M | 0.31% | 75 |
|
|
2024
Q1 | $22.5M | Buy |
65,092
+60,615
| +1,354% | +$19.9M | 0.22% | 81 |
|
|
2023
Q4 | $1.45M | Sell |
4,477
-52
| -1% | -$16.3K | 0.01% | 104 |
|
|
2023
Q3 | $1.62M | Buy |
4,529
+136
| +3% | +$52.5K | 0.02% | 104 |
|
|
2023
Q2 | $1.67M | Sell |
4,393
-27,404
| -86% | -$11.2M | 0.02% | 106 |
|
|
2023
Q1 | $15.2M | Sell |
31,797
-99
| -0.3% | -$46.3K | 0.15% | 83 |
|
|
2022
Q4 | $13.4M | Sell |
31,896
-34,769
| -52% | -$14M | 0.14% | 81 |
|
|
2022
Q3 | $27.8M | Buy |
66,665
+2,762
| +4% | +$1.38M | 0.31% | 70 |
|
|
2022
Q2 | $31.6M | Buy |
63,903
+2,167
| +4% | +$1.13M | 0.32% | 69 |
|
|
2022
Q1 | $34.8M | Buy |
61,736
+5,986
| +11% | +$3.61M | 0.31% | 71 |
|
|
2021
Q4 | $42.1M | Buy |
55,750
+3,810
| +7% | +$2.85M | 0.36% | 70 |
|
|
2021
Q3 | $38.7M | Sell |
51,940
-194
| -0.4% | -$145K | 0.35% | 71 |
|
|
2021
Q2 | $33.6M | Buy |
52,134
+833
| +2% | +$507K | 0.32% | 71 |
|
|
2021
Q1 | $29.3M | Buy |
51,301
+1,990
| +4% | +$1.18M | 0.29% | 77 |
|
|
2020
Q4 | $28.7M | Sell |
49,311
-15,082
| -23% | -$8.59M | 0.32% | 70 |
|
|
2020
Q3 | $33.2M | Sell |
64,393
-8,293
| -11% | -$4.2M | 0.48% | 56 |
|
|
2020
Q2 | $32.8M | Sell |
72,686
-86,128
| -54% | -$38M | 0.5% | 55 |
|
|
2020
Q1 | $55.7M | Sell |
158,814
-67,684
| -30% | -$24.9M | 0.98% | 34 |
|
|
2019
Q4 | $83.8M | Buy |
226,498
+2,326
| +1% | +$820K | 1.05% | 36 |
|
|
2019
Q3 | $74.6M | Sell |
224,172
-7,146
| -3% | -$2.33M | 0.99% | 38 |
|
|
2019
Q2 | $72.3M | Sell |
231,318
-9,031
| -4% | -$2.7M | 0.91% | 45 |
|
|
2019
Q1 | $73.5M | Buy |
240,349
+16,011
| +7% | +$4.32M | 0.91% | 41 |
|
|
2018
Q4 | $52.1M | Sell |
224,338
-8,323
| -4% | -$2.23M | 0.73% | 51 |
|
|
2018
Q3 | $72.8M | Buy |
232,661
+685
| +0.3% | +$213K | 0.81% | 44 |
|
|
2018
Q2 | $66.9M | Sell |
231,976
-19,153
| -8% | -$5.29M | 0.75% | 52 |
|
|
2018
Q1 | $62.8M | Sell |
251,129
-16,391
| -6% | -$4.17M | 0.72% | 54 |
|
|
2017
Q4 | $63.8M | Sell |
267,520
-256,724
| -49% | -$62.2M | 0.72% | 51 |
|
|
2017
Q3 | $116M | Sell |
524,244
-49,993
| -9% | -$11.3M | 1.35% | 23 |
|
|
2017
Q2 | $130M | Sell |
574,237
-100,123
| -15% | -$21.8M | 1.54% | 20 |
|
|
2017
Q1 | $134M | Sell |
674,360
-212,467
| -24% | -$40.9M | 1.58% | 20 |
|
|
2016
Q4 | $162M | Sell |
886,827
-71,219
| -7% | -$12.1M | 1.91% | 10 |
|
|
2016
Q3 | $157M | Sell |
958,046
-22,805
| -2% | -$3.46M | 1.9% | 11 |
|
|
2016
Q2 | $140M | Sell |
980,851
-23,641
| -2% | -$3.37M | 1.76% | 13 |
|
|
2016
Q1 | $137M | Sell |
1,004,492
-1,455
| -0.1% | -$191K | 1.65% | 17 |
|
|
2015
Q4 | $139M | Buy |
1,005,947
+5,786
| +0.6% | +$802K | 1.67% | 17 |
|
|
2015
Q3 | $134M | Sell |
1,000,161
-122,822
| -11% | -$17.7M | 1.67% | 14 |
|
|
2015
Q2 | $169M | Sell |
1,122,983
-18,159
| -2% | -$2.6M | 1.9% | 12 |
|
|
2015
Q1 | $154M | Buy |
1,141,142
+80,575
| +8% | +$9.99M | 1.73% | 14 |
|
|
2014
Q4 | $128M | Sell |
1,060,567
-6,659
| -0.6% | -$766K | 1.48% | 20 |
|
|
2014
Q3 | $121M | Buy |
1,067,226
+83,774
| +9% | +$9.93M | 1.56% | 21 |
|
|
2014
Q2 | $118M | Sell |
983,452
-41,277
| -4% | -$5.04M | 1.44% | 21 |
|
|
2014
Q1 | $131M | Sell |
1,024,729
-77,878
| -7% | -$9.98M | 1.6% | 18 |
|
|
2013
Q4 | $136M | Buy |
1,102,607
+5,994
| +0.5% | +$730K | 1.67% | 18 |
|
|
2013
Q3 | $129M | Buy |
1,096,613
+84,207
| +8% | +$9.93M | 1.88% | 14 |
|
|
2013
Q2 | $114M | Buy |
+1,012,406
| New | +$119M | 1.86% | 16 |
|
Other funds holding BIO
VCM
VPM
Ariel Investments's BIO Position: Q1 2026 in Review
Ariel Investments increased its Bio-Rad Laboratories Class A (BIO) stake by 2.8% in Q1 2026, buying an estimated $6.13M and bringing the position to 785,961 shares worth $219M. The position accounts for 2.45% of the portfolio, ranked #16.
Ariel Investments first reported a position in BIO in Q2 2013 and has held it in 52 quarters since. The position peaked at $232M in Q4 2025. 391 funds tracked by Wall St. Rank hold BIO as of Q1 2026.
- Ariel Investments held 785,961 shares of Bio-Rad Laboratories Class A worth $219M as of Q1 2026.
- Ariel Investments bought 21,289 Bio-Rad Laboratories Class A shares in Q1 2026, an estimated $6.13M.
- Bio-Rad Laboratories Class A made up 2.45% of Ariel Investments's portfolio in Q1 2026, its #16 holding.
- Ariel Investments first reported a position in Bio-Rad Laboratories Class A in Q2 2013 and has held it in 52 quarters since.
- Ariel Investments's Bio-Rad Laboratories Class A position peaked at $232M in Q4 2025.
- 391 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q1 2026.
Based on Ariel Investments's 13F filing for Q1 2026, filed 14 May 2026.