Bio-Rad Laboratories, Inc. (BIO) Insider Ownership

Historic Insider Ownership Trends

As of June 18, 2026, Bio-Rad Laboratories's top three insider holders are Alice N Schwartz (TenPercentOwner, 1.78Mn shares), Norman D Schwartz (Chairman Ceo, 443.43K shares), Alice N Schwartz (TenPercentOwner, 437.51K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Steven D Schwartz - 25,234 13,006 28 Aug, 2024
Norman D Schwartz Chairman Ceo 443,434 0 09 Sep, 2025
Greg K Hinckley - 1,215 0 23 Apr, 2026
Alice N Schwartz - 0 1,781,356 27 Aug, 2024
Arnold A Pinkston - 715 0 23 Apr, 2026
Roop Kalyan Lakkaraju Evp, Chief Financial Officer 1,844 0 09 Sep, 2025
Michael Crowley Evp, Gbl Commercial Operations 8,171 0 17 Mar, 2025
Timothy S Ernst Evp, General Counsel Sec 3,397 0 29 Feb, 2024
Dara Wright Evp, President, Cdg 1,827 0 18 Dec, 2023
Ajit Ramalingam Svp, Chief Accounting Officer 403 0 05 Sep, 2023
Simon May Evp, President, Lsg 3,105 0 05 Sep, 2023
Schwartz Allison - 3,996 0 28 Aug, 2024
Diane Dahowski Evp, Global Supply Chain 11,880 0 05 Sep, 2023
Colleen Corey Evp, Global Human Resources 19,550 0 08 Sep, 2025
Sedat Evran Evp, Global Supply Chain 2,233 0 21 Oct, 2025
Courtney C Enloe Evp, General Counsel Sec 629 0 08 Sep, 2025
James Barry Evp, President, Lsg 510 0 08 Nov, 2025
Eva Anette Engelhardt Evp, President, Cdg 896 0 09 Sep, 2025

* 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
21 Apr, 2026 Arnold A Pinkston Bio-Rad A Common Stock A 407 $0.00 715 D M
21 Apr, 2026 Greg K Hinckley Bio-Rad A Common Stock A 407 $0.00 1,215 D M
21 Apr, 2026 Arnold A Pinkston Restricted Stock Units A 369 $0.00 369 D A
21 Apr, 2026 Greg K Hinckley Restricted Stock Units A 369 $0.00 369 D A
21 Apr, 2026 Arnold A Pinkston Restricted Stock Units D 407 $0.00 0 D M
21 Apr, 2026 Greg K Hinckley Restricted Stock Units D 407 $0.00 0 D M
06 Nov, 2025 James Barry Bio-Rad A Common Stock D 700 $306.18 510 D S
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 A 1,044 $0.00 2,568 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
20 Oct, 2025 Sedat Evran Bio-Rad A Common Stock D 335 $321.90 2,233 D F
20 Oct, 2025 Sedat Evran Bio-Rad A Common Stock D 335 $321.90 2,233 D F
20 Oct, 2025 Sedat Evran Restricted Stock Units D 1,044 $0.00 2,088 D M
20 Oct, 2025 Sedat Evran Restricted Stock Units D 1,044 $0.00 2,088 D M
20 Oct, 2025 Sedat Evran Restricted Stock Units D 1,044 $0.00 2,088 D M
05 Sep, 2025 Rajat Mehta Restricted Stock Units A 1,827 $0.00 1,827 D A
06 Sep, 2025 Norman D Schwartz Bio-Rad A Common Stock A 3,455 $0.00 444,962 D M
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 A 864 $0.00 1,801 D M