Based on data from the past 90 days ending February 19, 2026, Bio-Rad Laboratories's three largest insider shareholders are Chairman & Ceo Norman D Schwartz (443.43K shares), TenPercentOwner Steven D Schwartz (363.64K shares), Evp And Global Human Resources Colleen Corey (19.55K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Norman D Schwartz | Chairman & Ceo | 443,434 | 09 Sep, 2025 |
| Steven D Schwartz | 363,644 | 28 Aug, 2024 | |
| Colleen Corey | Evp And Global Human Resources | 19,550 | 09 Sep, 2025 |
| Diane Dahowski | Evp And Global Supply Chain | 11,880 | 06 Sep, 2023 |
| Michael Crowley | Evp And Gbl Commercial Operations | 8,171 | 18 Mar, 2025 |
| Andrew J. Last | Evp And Chief Operating Officer | 7,559 | 10 Sep, 2024 |
| Annette Tumolo | Executive Vice President | 4,593 | 15 Nov, 2021 |
| Timothy S Ernst | Evp And General Counsel & Sec | 3,397 | 29 Feb, 2024 |
| Simon May | Evp And President And Lsg | 3,105 | 06 Sep, 2023 |
| Ilan Daskal | Evp And Chief Financial Officer | 2,486 | 06 Sep, 2023 |
| Sedat Evran | Evp And Global Supply Chain | 2,233 | 21 Oct, 2025 |
| Roop Kalyan Lakkaraju | Evp And Chief Financial Officer | 1,844 | 09 Sep, 2025 |
| Dara Wright | Evp And President And Cdg | 1,827 | 19 Dec, 2023 |
| Schwartz Allison | 1,456 | 09 Sep, 2025 | |
| Jonathan P. Divincenzo | President & Coo | 919 | 28 Oct, 2025 |
| Eva Anette Engelhardt | Evp And President And Cdg | 896 | 09 Sep, 2025 |
| Courtney C Enloe | Evp And General Counsel & Sec | 629 | 09 Sep, 2025 |
| James Barry | Evp And President And Lsg | 510 | 10 Nov, 2025 |
| Ajit Ramalingam | Svp And Chief Accounting Officer | 403 | 06 Sep, 2023 |
| Gregory K Hinckley | 308 | 24 Apr, 2025 | |
| Jeffrey L Edwards | 308 | 24 Apr, 2025 | |
| Melinda Litherland Pei | 308 | 24 Apr, 2025 | |
| Arnold A Pinkston | 308 | 24 Apr, 2025 | |
| Alice N Schwartz | 90 | 27 Aug, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 06 Nov, 2025 | James Barry | Bio-Rad A Common Stock | D | 700 | $306.18 | 510 | D | S |
| 24 Oct, 2025 | Jonathan P. Divincenzo | Bio-Rad A Common Stock | D | 950 | $339.75 | 919 | D | F |
| 24 Oct, 2025 | Jonathan P. Divincenzo | Bio-Rad A Common Stock | A | 1,869 | $0.00 | 1,869 | D | M |
| 20 Oct, 2025 | Sedat Evran | Bio-Rad A Common Stock | A | 1,044 | $0.00 | 2,568 | D | M |
| 20 Oct, 2025 | Sedat Evran | Bio-Rad A Common Stock | D | 335 | $321.90 | 2,233 | D | F |
| 06 Sep, 2025 | Norman D Schwartz | Bio-Rad A Common Stock | A | 3,455 | $0.00 | 444,962 | D | M |
| 06 Sep, 2025 | Norman D Schwartz | Bio-Rad A Common Stock | D | 1,528 | $295.43 | 443,434 | D | F |
| 06 Sep, 2025 | Roop Kalyan Lakkaraju | Bio-Rad A Common Stock | A | 1,535 | $0.00 | 2,394 | D | M |
| 06 Sep, 2025 | Roop Kalyan Lakkaraju | - | - | 2,394 | D | |||
| 06 Sep, 2025 | Roop Kalyan Lakkaraju | - | - | 1,844 | D | |||
| 06 Sep, 2025 | Roop Kalyan Lakkaraju | Bio-Rad A Common Stock | D | 550 | $295.43 | 1,844 | D | F |
| 06 Sep, 2025 | Schwartz Allison | Bio-Rad A Common Stock | A | 92 | $0.00 | 1,489 | D | M |
| 06 Sep, 2025 | Schwartz Allison | Bio-Rad A Common Stock | D | 33 | $295.43 | 1,456 | D | F |
| 06 Sep, 2025 | Colleen Corey | Bio-Rad A Common Stock | A | 576 | $0.00 | 19,759 | D | M |
| 06 Sep, 2025 | Colleen Corey | Bio-Rad A Common Stock | D | 209 | $295.43 | 19,550 | D | F |
| 06 Sep, 2025 | Sedat Evran | Bio-Rad A Common Stock | A | 864 | $0.00 | 1,801 | D | M |
| 06 Sep, 2025 | Sedat Evran | Bio-Rad A Common Stock | D | 277 | $295.43 | 1,524 | D | F |
| 06 Sep, 2025 | Courtney C Enloe | Bio-Rad A Common Stock | A | 768 | $0.00 | 904 | D | M |
| 06 Sep, 2025 | Courtney C Enloe | Bio-Rad A Common Stock | D | 275 | $295.43 | 629 | D | F |
| 06 Sep, 2025 | James Barry | Bio-Rad A Common Stock | D | 378 | $295.43 | 1,210 | D | F |