Insider Shareholders with Direct Ownership of Bio Rad Laboratories, Inc. (BIO)
This section provides a comprehensive overview of the insiders with direct ownership of Bio Rad Laboratories, Inc. (BIO). You can find detailed information about the size and nature of each insider's ownership stake, as well as the latest updates on their holdings.
BIO-RAD LABORATORIES, INC. Insider List
| Insider | Adquired | Disposed | Held | # of Trades | Last Transaction |
|---|---|---|---|---|---|
|
Norman D Schwartz
Chairman & CEO |
234,716 | 147,034 | 443,434 $142 Million | 41 |
Sep 06, 2025
Reduced 0.34%
|
|
Steven D Schwartz
> 10% Shareholder |
195 | 0 | 25,128 $8.03 Million | 5 |
Nov 07, 2022
Added 0.17%
|
|
Colleen Corey
EVP, Global Human Resources |
5,690 | 2,020 | 19,550 $6.25 Million | 18 |
Sep 06, 2025
Reduced 1.06%
|
|
Diane Dahowski
EVP, Global Supply Chain |
4,690 | 1,889 | 11,880 $3.8 Million | 18 |
Sep 04, 2023
Reduced 2.26%
|
|
Michael Crowley
EVP, GBL Commercial Operations |
19,567 | 15,439 | 8,171 $2.61 Million | 44 |
Mar 14, 2025
Reduced 26.86%
|
|
Andrew J. Last
EVP, Chief Operating Officer |
17,495 | 10,861 | 7,559 $2.42 Million | 26 |
Sep 06, 2024
Reduced 28.41%
|
|
Annette Tumolo
Executive Vice President |
10,336 | 9,865 | 4,593 $1.47 Million | 18 |
Nov 12, 2021
Reduced 51.1%
|
|
Timothy S Ernst
EVP, General Counsel & Sec |
12,578 | 11,064 | 3,397 $1.09 Million | 38 |
Feb 28, 2024
Reduced 42.39%
|
|
Simon May
EVP, President, LSG |
4,932 | 1,964 | 3,104 $991,883 | 18 |
Sep 04, 2023
Reduced 8.68%
|
|
Ilan Daskal
EVP, Chief Financial Officer |
7,269 | 5,342 | 2,486 $794,401 | 19 |
Sep 02, 2023
Reduced 9.76%
|
|
Sedat Evran
EVP, Global Supply Chain |
2,952 | 947 | 2,232 $713,235 | 6 |
Oct 20, 2025
Reduced 13.05%
|
|
Roop Kalyan Lakkaraju
EVP, Chief Financial Officer |
2,612 | 936 | 1,843 $588,930 | 4 |
Sep 06, 2025
Reduced 22.98%
|
|
Dara Wright
EVP, President, CDG |
4,637 | 2,907 | 1,827 $583,817 | 19 |
Dec 16, 2023
Reduced 8.7%
|
|
Schwartz Allison
Director |
1,178 | 430 | 1,456 $465,264 | 31 |
Sep 06, 2025
Reduced 2.22%
|
|
James Barry
EVP, President, LSG |
2,740 | 1,607 | 1,209 $386,335 | 11 |
Sep 06, 2025
Reduced 23.82%
|
|
Jonathan P. Di Vincenzo
President & COO |
1,869 | 950 | 919 $293,666 | 2 |
Oct 24, 2025
Reduced 50.83%
|
|
Eva Anette Engelhardt
EVP, President, CDG |
1,397 | 501 | 896 $286,316 | 4 |
Sep 06, 2025
Reduced 31.55%
|
|
Courtney C Enloe
EVP, General Counsel & Sec |
954 | 342 | 628 $200,677 | 4 |
Sep 06, 2025
Reduced 30.45%
|
|
Ajit Ramalingam
SVP, Chief Accounting Officer |
2,063 | 1,812 | 403 $128,778 | 19 |
Sep 02, 2023
Reduced 17.25%
|
|
Jeffrey L Edwards
Director |
308 | 0 | 308 $98,421 | 1 |
Apr 22, 2025
Added 50.0%
|
|
Gregory K Hinckley
Director |
308 | 0 | 308 $98,421 | 1 |
Apr 22, 2025
Added 50.0%
|
|
Melinda Litherland Pei
Director |
308 | 0 | 308 $98,421 | 1 |
Apr 22, 2025
Added 50.0%
|
|
Arnold A Pinkston
Director |
308 | 0 | 308 $98,421 | 1 |
Apr 22, 2025
Added 50.0%
|