NYSE:BIO

Bio-rad Laboratories Stock Insider Trading

Healthcare > Medical - Devices

Buy BIO

*Your capital is at risk

$304.83

-1.30 (-0.425%)

At Close: Jun 03, 2026

Bio-Rad Laboratories Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 35.24. In total, the insiders bought 56.74K and sold 11.62M BIO shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	35.24
● Buy	56.74K shares
● Sell	11.62M shares
80% Buy Activity Negligible or No Correlation
Sell Signal Low Confidence May 11, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory positive Insider Power Score of 35.24. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Oct 20, 2025 Buy	Restricted Stock Units M-Exempt	Evran Sedat EVP, Global Supply Chain	Officer	1 044 Value: $336.1K
Sep 01, 2025 Buy	Bio-Rad A Common Stock M-Exempt	Allison Schwartz Director	Director	147 Value: $44.8K
Sep 01, 2025 Sell	Bio-Rad A Common Stock F-InKind	Allison Schwartz Director	Director	55 Value: $16.4K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Allison Schwartz Director	Director	74 Value: $22.6K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Allison Schwartz Director	Director	42 Value: $12.8K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Allison Schwartz Director	Director	31 Value: $9K
Sep 01, 2025 Buy	Bio-Rad A Common Stock M-Exempt	Barry James EVP, President, Lsg	CEO / President	602 Value: $183.5K
Sep 01, 2025 Sell	Bio-Rad A Common Stock F-InKind	Barry James EVP, President, Lsg	CEO / President	217 Value: $64.6K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Barry James EVP, President, Lsg	CEO / President	250 Value: $76.2K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Barry James EVP, President, Lsg	CEO / President	174 Value: $53.0K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Barry James EVP, President, Lsg	CEO / President	178 Value: $54.3K
Sep 01, 2025 Buy	Bio-Rad A Common Stock M-Exempt	Corey Colleen EVP, Global Human Resources	Officer	1 102 Value: $335.9K
Sep 01, 2025 Sell	Bio-Rad A Common Stock F-InKind	Corey Colleen EVP, Global Human Resources	Officer	398 Value: $118.6K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Corey Colleen EVP, Global Human Resources	Officer	501 Value: $152.7K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Corey Colleen EVP, Global Human Resources	Officer	347 Value: $105.8K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Corey Colleen EVP, Global Human Resources	Officer	254 Value: $77.4K
Sep 01, 2025 Buy	Bio-Rad A Common Stock M-Exempt	Schwartz Norman D Chairman & CEO	CEO / President	6 353 Value: $1.94M
Sep 01, 2025 Sell	Bio-Rad A Common Stock F-InKind	Schwartz Norman D Chairman & CEO	CEO / President	3 084 Value: $918.7K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Schwartz Norman D Chairman & CEO	CEO / President	3 005 Value: $916.0K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Schwartz Norman D Chairman & CEO	CEO / President	2 082 Value: $634.7K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Schwartz Norman D Chairman & CEO	CEO / President	1 266 Value: $385.9K
Sep 01, 2025 Buy	Bio-Rad A Common Stock M-Exempt	Allison Schwartz Director	Director	147 Value: $44.8K
Sep 01, 2025 Sell	Bio-Rad A Common Stock F-InKind	Allison Schwartz Director	Director	55 Value: $16.4K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Allison Schwartz Director	Director	74 Value: $22.6K
Sep 01, 2025 Buy	Restricted Stock Units M-Exempt	Allison Schwartz Director	Director	42 Value: $12.8K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT BIO-RAD LABORATORIES INC

Bio-Rad Laboratories, Inc. manufactures, and distributes life science research and clinical diagnostic products in the United States, Europe, Asia, Canada, and Latin America. The company operates through Life Science and Clinical Diagnostics segments. The Life Science segment develops, manufactures, and markets a range of reagents, apparatus, and laboratory instruments that are used in research techniques, biopharmaceutical production processes, ...

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