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SIMPLEX TRADING, LLC

Position in BIO — Bio-Rad Laboratories, Inc.

CIK 1488542 CHICAGO, IL

Position in BIO

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$39,930
+$5,644 QoQ
Shares Held
136
+10.6% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#298
of 397 holders
Holding Since
Dec 2020
16 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in BIO Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $14,714,630 across 42 Medical Devices names. BIO ranks #22 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in BIO

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16 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $39,930 136
2026-03-31 $34,286 123
2025-06-30 $8,446 35
2025-03-31 $2 12
2024-12-31 $37,450 114
2024-09-30 $11,710 35
2024-06-30 $870,947 3,189
2023-09-30 $53,767 150
2023-06-30 $166,812 440
2023-03-31 $465,128 971
2022-12-31 $311,583 741
2022-09-30 $893,513 2,142
2022-03-31 $161,647 287
2021-09-30 $114,876 154
2021-06-30 $99,220 154
2020-12-31 $79,279 136