Simplex Trading’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 | $4.71M | Buy |
16,900
+5,400
| +47% | +$1.56M | ﹤0.01% | 1158 |
|
|
2025
Q4 | $3.48M | Buy |
11,500
+10,500
| +1,050% | +$3.28M | ﹤0.01% | 1547 |
|
|
2025
Q3 | $280K | Sell |
1,000
-300
| -23% | -$81.6K | ﹤0.01% | 4545 |
|
|
2025
Q2 | $313K | Sell |
1,300
-800
| -38% | -$189K | ﹤0.01% | 4020 |
|
|
2025
Q1 | $511K | Buy |
2,100
+1,900
| +950% | +$572K | ﹤0.01% | 3382 |
|
|
2024
Q4 | $65K | Buy |
200
+100
| +100% | +$33.9K | ﹤0.01% | 5588 |
|
|
2024
Q3 | $33K | Sell |
100
-500
| -83% | -$159K | ﹤0.01% | 6252 |
|
|
2024
Q2 | $163K | Sell |
600
-2,900
| -83% | -$843K | ﹤0.01% | 4849 |
|
|
2024
Q1 | $1.21M | Sell |
3,500
-700
| -17% | -$230K | ﹤0.01% | 2913 |
|
|
2023
Q4 | $1.36M | Sell |
4,200
-4,500
| -52% | -$1.41M | ﹤0.01% | 2720 |
|
|
2023
Q3 | $3.12M | Sell |
8,700
-6,200
| -42% | -$2.39M | ﹤0.01% | 1690 |
|
|
2023
Q2 | $5.65M | Buy |
14,900
+11,200
| +303% | +$4.56M | ﹤0.01% | 1236 |
|
|
2023
Q1 | $1.77M | Buy |
3,700
+2,500
| +208% | +$1.17M | ﹤0.01% | 2045 |
|
|
2022
Q4 | $504K | Sell |
1,200
-5,700
| -83% | -$2.3M | ﹤0.01% | 3147 |
|
|
2022
Q3 | $2.88M | Sell |
6,900
-2,200
| -24% | -$1.1M | ﹤0.01% | 1656 |
|
|
2022
Q2 | $4.5M | Buy |
9,100
+6,800
| +296% | +$3.54M | ﹤0.01% | 1215 |
|
|
2022
Q1 | $1.29M | Buy |
2,300
+500
| +28% | +$301K | ﹤0.01% | 2586 |
|
|
2021
Q4 | $1.36M | Buy |
1,800
+1,500
| +500% | +$1.12M | ﹤0.01% | 2465 |
|
|
2021
Q3 | $197K | Hold |
300
| – | – | ﹤0.01% | 5602 |
|
|
2021
Q2 | $193K | Buy |
300
+292
| +3,650% | +$178K | ﹤0.01% | 5728 |
|
|
2021
Q1 | $456K | Sell |
8
-13
| -62% | -$7.7K | ﹤0.01% | 3508 |
|
|
2020
Q4 | $1.22M | Buy |
21
+11
| +110% | +$6.26K | ﹤0.01% | 2306 |
|
|
2020
Q3 | $515K | Buy |
10
+3
| +43% | +$1.52K | ﹤0.01% | 2966 |
|
|
2020
Q2 | $316K | Buy |
7
+5
| +250% | +$2.21K | ﹤0.01% | 3465 |
|
|
2020
Q1 | $70K | Sell |
2
-44
| -96% | -$16.2K | ﹤0.01% | 4766 |
|
|
2019
Q4 | $1.7M | Hold |
46
| – | – | ﹤0.01% | 1616 |
|
|
2019
Q3 | $1.53M | Sell |
46
-62
| -57% | -$20.2K | ﹤0.01% | 1555 |
|
|
2019
Q2 | $3.38M | Sell |
108
-87
| -45% | -$26.1K | 0.01% | 936 |
|
|
2019
Q1 | $5.96M | Buy |
195
+170
| +680% | +$45.9K | 0.02% | 589 |
|
|
2018
Q4 | $580K | Buy |
25
+24
| +2,400% | +$6.44K | ﹤0.01% | 2082 |
|
|
2018
Q3 | $31K | Hold |
1
| – | – | ﹤0.01% | 5611 |
|
|
2018
Q2 | $28K | Buy |
+1
| New | +$276 | ﹤0.01% | 5584 |
|
|
2017
Q4 | – | Sell |
-73
| Closed | -$1K | – | 5983 |
|
|
2017
Q3 | $1K | Buy |
+73
| New | +$16.4K | ﹤0.01% | 5349 |
|
|
2017
Q1 | – | Sell |
-17
| Closed | -$35K | – | 6136 |
|
|
2016
Q4 | $35K | Buy |
17
+8
| +89% | +$1.36K | ﹤0.01% | 2493 |
|
|
2016
Q3 | $7K | Buy |
+9
| New | +$1.37K | ﹤0.01% | 3918 |
|
Other funds holding BIO
VCM
VPM
AI
Simplex Trading's BIO Position: Q1 2026 in Review
Simplex Trading opened a new position in Bio-Rad Laboratories Class A (BIO) in Q1 2026: 123 shares worth $34.3K. The stake represents ﹤0.01% of the portfolio and ranks #6250 among its holdings. This is a return to the name: Simplex Trading previously reported a position in BIO as recently as Q2 2025.
Simplex Trading first reported a position in BIO in Q2 2015 and has held it in 23 quarters since. The position peaked at $893K in Q3 2022. 391 funds tracked by Wall St. Rank hold BIO as of Q1 2026.
- Simplex Trading held 123 shares of Bio-Rad Laboratories Class A worth $34.3K as of Q1 2026.
- Bio-Rad Laboratories Class A was a new Simplex Trading position in Q1 2026.
- Bio-Rad Laboratories Class A made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #6250 holding.
- Simplex Trading first reported a position in Bio-Rad Laboratories Class A in Q2 2015 and has held it in 23 quarters since.
- Simplex Trading's Bio-Rad Laboratories Class A position peaked at $893K in Q3 2022.
- 391 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q1 2026.
Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.