Stanley C. Erck

Companies

• MaxCyte (United States)Board member Jul 29, 2021 to now¹
• NovavaxChief executive officer Aug 11, 2011 to Dec 16, 2022²
• NovavaxPresident Aug 11, 2011 to Dec 16, 2022²
• NovavaxBoard member Jun 26, 2009 to Dec 16, 2022³
• BioCryst PharmaceuticalsBoard member Dec 23, 2008 to Nov 30, 2018⁴

Holdings

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

Shares held

• MUMaxCyte (United States) MXCT428,749 shares⁵$557.4K at $1.30Jun 17, 2026
• Novavax NVAX36,492 shares⁶$467.8K at $12.82Dec 14, 2022

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

Recent filings

• Jun 17, 2026Granted 30,421 shares of MaxCyte (United States)⁵
• Aug 13, 2025Bought 100,000 shares at $1.37 of MaxCyte (United States)⁷
• Jun 18, 2025Granted 29,210 shares of MaxCyte (United States)⁸
• Nov 1, 2024Sold 47,689 shares at $3.72 of MaxCyte (United States)⁹
• Nov 1, 2024Exercised options 47,689 shares at $0.04 of MaxCyte (United States)⁹
• Oct 2, 2024Sold 21,607 shares at $3.71 of MaxCyte (United States)¹⁰
• Oct 2, 2024Exercised options 21,607 shares at $0.04 of MaxCyte (United States)¹⁰
• Oct 1, 2024Sold 26,082 shares at $3.78 of MaxCyte (United States)¹⁰
• Oct 1, 2024Exercised options 26,082 shares at $0.04 of MaxCyte (United States)¹⁰
• Sep 4, 2024Sold 29,767 shares at $3.97 of MaxCyte (United States)¹¹
• Sep 4, 2024Exercised options 29,767 shares at $0.04 of MaxCyte (United States)¹¹
• Sep 3, 2024Sold 17,922 shares at $4.10 of MaxCyte (United States)¹¹
• Sep 3, 2024Exercised options 17,922 shares at $0.04 of MaxCyte (United States)¹¹
• Jun 11, 2024Granted 21,367 shares of MaxCyte (United States)¹²
• Dec 14, 2022Shares withheld for tax 2,320 shares at $17.23 of Novavax⁶
• Dec 14, 2022Exercised options 6,966 shares of Novavax⁶
• Sep 26, 2022Shares withheld for tax 2,180 shares at $18.87 of Novavax¹³
• Sep 26, 2022Exercised options 6,546 shares of Novavax¹³
• Dec 14, 2021Shares withheld for tax 3,366 shares at $168.43 of Novavax¹⁴
• Dec 14, 2021Exercised options 6,967 shares of Novavax¹⁴
• Oct 4, 2021Sold 500 shares at $180.58 of Novavax¹⁵
• Oct 4, 2021Sold 3,300 shares at $179.48 of Novavax¹⁵
• Oct 4, 2021Sold 8,563 shares at $178.46 of Novavax¹⁵
• Oct 4, 2021Sold 8,890 shares at $177.58 of Novavax¹⁵
• Oct 4, 2021Sold 4,700 shares at $176.48 of Novavax¹⁵