Colleen Corey Bio Rad Laboratories, Inc. (BIO) insider trading activity

Colleen Corey is EVP, Global Human Resources of BIO-RAD LABORATORIES, INC.. Currently has a direct ownership of 19,550 shares of BIO, which is worth approximately $5.54 Million. The most recent transaction as insider was on Sep 06, 2025, when has been sold 209 shares (Bio-Rad A Common Stock) at a price of $295.43 per share, resulting in proceeds of $61,744. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 19.6K

5.8% 3M change

5.8% 12M change

Total Value Held $5.54 Million

COLLEEN COREY Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Sep 06 2025	SELL Payment of exercise price or tax liability	$61,744 $295.43 p/Share	209 Reduced 1.06%	19,550 Bio-Rad A Common Stock
Sep 06 2025	BUY Exercise of conversion of derivative security	-	576 Added 2.83%	19,759 Bio-Rad A Common Stock
Sep 01 2025	SELL Payment of exercise price or tax liability	$118,556 $297.88 p/Share	398 Reduced 2.03%	19,183 Bio-Rad A Common Stock
Sep 01 2025	BUY Exercise of conversion of derivative security	-	1,102 Added 5.33%	19,581 Bio-Rad A Common Stock
Sep 03 2024	SELL Payment of exercise price or tax liability	$59,172 $334.31 p/Share	177 Reduced 0.95%	18,479 Bio-Rad A Common Stock
Sep 03 2024	BUY Exercise of conversion of derivative security	-	495 Added 2.58%	18,656 Bio-Rad A Common Stock
Sep 02 2024	SELL Payment of exercise price or tax liability	$43,514 $337.32 p/Share	129 Reduced 0.71%	18,161 Bio-Rad A Common Stock
Sep 02 2024	BUY Exercise of conversion of derivative security	-	361 Added 1.94%	18,290 Bio-Rad A Common Stock
Sep 01 2024	SELL Payment of exercise price or tax liability	$132,904 $337.32 p/Share	394 Reduced 2.15%	17,929 Bio-Rad A Common Stock
Sep 01 2024	BUY Exercise of conversion of derivative security	-	1,100 Added 5.75%	18,020 Bio-Rad A Common Stock
Sep 04 2023	SELL Payment of exercise price or tax liability	$82,076 $394.6 p/Share	208 Reduced 1.19%	17,223 Bio-Rad A Common Stock
Sep 04 2023	BUY Exercise of conversion of derivative security	-	600 Added 3.33%	17,431 Bio-Rad A Common Stock
Sep 03 2023	SELL Payment of exercise price or tax liability	$67,871 $394.6 p/Share	172 Reduced 1.01%	16,831 Bio-Rad A Common Stock
Sep 03 2023	BUY Exercise of conversion of derivative security	-	495 Added 2.83%	17,003 Bio-Rad A Common Stock
Sep 02 2023	SELL Payment of exercise price or tax liability	$49,325 $394.6 p/Share	125 Reduced 0.75%	16,508 Bio-Rad A Common Stock
Sep 02 2023	BUY Exercise of conversion of derivative security	-	361 Added 2.12%	16,633 Bio-Rad A Common Stock
Sep 01 2023	SELL Payment of exercise price or tax liability	$82,076 $394.6 p/Share	208 Reduced 1.26%	16,272 Bio-Rad A Common Stock
Sep 01 2023	BUY Exercise of conversion of derivative security	-	600 Added 3.54%	16,360 Bio-Rad A Common Stock

Colleen Corey

EVP, Global Human Resources

Hercules, CA

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