Melinda Litherland Pei

Companies

• RAPID MICRO BIOSYSTEMS, INC.Board member Jul 14, 2021 to now¹
• Bio-Rad LaboratoriesBoard member May 1, 2017 to now²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Bio-Rad Laboratories BIO715 shares³$253.3K at $354.24Apr 21, 2026
• RMRAPID MICRO BIOSYSTEMS, INC. RPID100,687 shares⁴$79.2K at $0.79May 29, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• May 29, 2026Granted 12,787 shares at $1.96 of RAPID MICRO BIOSYSTEMS, INC.⁴
• May 21, 2026Granted 19,300 shares of RAPID MICRO BIOSYSTEMS, INC.⁵
• Apr 21, 2026Exercised options 407 shares of Bio-Rad Laboratories³
• May 22, 2025Granted 14,300 shares of RAPID MICRO BIOSYSTEMS, INC.⁶
• Apr 22, 2025Exercised options 308 shares of Bio-Rad Laboratories⁷
• Dec 5, 2024Bought 9,120 shares at $1.04 of RAPID MICRO BIOSYSTEMS, INC.⁸
• Dec 3, 2024Bought 10,880 shares at $1.00 of RAPID MICRO BIOSYSTEMS, INC.⁸
• Nov 27, 2024Bought 19,892 shares at $1.05 of RAPID MICRO BIOSYSTEMS, INC.⁹
• Nov 26, 2024Bought 108 shares at $1.04 of RAPID MICRO BIOSYSTEMS, INC.⁹
• May 23, 2024Granted 14,300 shares of RAPID MICRO BIOSYSTEMS, INC.¹⁰