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

Simplex Trading’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 		$34.3K Buy
+123
New +$35.4K ﹤0.01% 6250
2025
Q3 		– Sell
-35
Closed -$9.52K – 9064
2025
Q2 		$8K Buy
35
+23
+192% +$5.44K ﹤0.01% 7442
2025
Q1 		$2K Sell
12
-102
-89% -$30.7K ﹤0.01% 7929
2024
Q4 		$37K Buy
114
+79
+226% +$26.8K ﹤0.01% 6168
2024
Q3 		$11K Sell
35
-3,154
-99% -$1M ﹤0.01% 7108
2024
Q2 		$870K Buy
+3,189
New +$928K ﹤0.01% 3065
2023
Q4 		– Sell
-150
Closed -$47K – 8778
2023
Q3 		$53K Sell
150
-290
-66% -$112K ﹤0.01% 5749
2023
Q2 		$166K Sell
440
-531
-55% -$216K ﹤0.01% 4514
2023
Q1 		$465K Buy
971
+230
+31% +$108K ﹤0.01% 3347
2022
Q4 		$311K Sell
741
-1,401
-65% -$565K ﹤0.01% 3691
2022
Q3 		$893K Buy
+2,142
New +$1.07M ﹤0.01% 2783
2022
Q2 		– Sell
-287
Closed -$149K – 9962
2022
Q1 		$161K Buy
+287
New +$173K ﹤0.01% 5461
2021
Q4 		– Sell
-154
Closed -$115K – 10480
2021
Q3 		$101K Hold
154
– – ﹤0.01% 6605
2021
Q2 		$99K Buy
+154
New +$93.7K ﹤0.01% 6735
2021
Q1 		– Sell
-136
Closed -$80.5K – 8824
2020
Q4 		$79K Buy
+136
New +$77.5K ﹤0.01% 5675
2020
Q1 		– Sell
-838
Closed -$308K – 7590
2019
Q4 		$310K Buy
+838
New +$295K ﹤0.01% 3249
2017
Q2 		– Sell
-402
Closed -$80K – 6088
2017
Q1 		$80K Buy
+402
New +$77.4K ﹤0.01% 1948
2016
Q4 		– Sell
-307
Closed -$52.3K – 5827
2016
Q3 		$50K Buy
307
+250
+439% +$37.9K ﹤0.01% 2100
2016
Q2 		$8K Sell
57
-209
-79% -$29.8K ﹤0.01% 3780
2016
Q1 		$36K Buy
266
+146
+122% +$19.2K ﹤0.01% 2247
2015
Q4 		$16K Sell
120
-617
-84% -$85.5K ﹤0.01% 2873
2015
Q3 		$98K Sell
737
-198
-21% -$28.5K 0.01% 1429
2015
Q2 		$140K Buy
+935
New +$134K 0.01% 998

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

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. 392 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.
  • 392 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.