William Mariner Greenman

Companies

• CERUS CORPBoard member Apr 20, 2011 to now¹
• CERUS CORPChief executive officer Apr 20, 2011 to Jul 20, 2026¹
• CHINOOK THERAPEUTICS, INC.Board member Apr 14, 2015 to Aug 11, 2023²
• CERUS CORPPresident Oct 4, 2006 to Mar 5, 2013³
• CERUS CORPSr. VP Bus. Dev. & Marketing Apr 27, 2009 to Jan 12, 2011⁴

Holdings

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

Shares held

• CCERUS CORP CERS5,053,036 shares⁵$11.1M at $2.21Jun 30, 2026
• CTCHINOOK THERAPEUTICS, INC.0 shares⁶Aug 11, 2023

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

Recent filings

• Jun 30, 2026Sold 101,919 shares at $2.94 of CERUS CORP⁵
• Jun 30, 2026Granted 192,500 shares of CERUS CORP⁵
• Mar 12, 2026Sold 447,757 shares at $1.66 of CERUS CORP⁷
• Mar 6, 2026Sold 78,187 shares at $2.01 of CERUS CORP⁸
• Mar 5, 2026Granted 193,270 shares of CERUS CORP⁸
• Mar 2, 2026Granted 1,200,000 shares of CERUS CORP⁹
• Mar 14, 2025Sold 122,827 shares at $1.45 of CERUS CORP¹⁰
• Mar 13, 2025Sold 71,086 shares at $1.45 of CERUS CORP¹⁰
• Mar 7, 2025Sold 60,984 shares at $1.50 of CERUS CORP¹¹
• Mar 6, 2025Granted 165,742 shares of CERUS CORP¹¹
• Mar 6, 2025Granted 975,000 shares of CERUS CORP¹¹
• Mar 4, 2025Sold 23,023 shares at $1.55 of CERUS CORP¹²
• Mar 3, 2025Exercised options 57,637 shares of CERUS CORP¹²
• Mar 14, 2024Sold 63,611 shares at $2.02 of CERUS CORP¹³
• Mar 13, 2024Sold 62,315 shares at $2.06 of CERUS CORP¹³
• Mar 12, 2024Exercised options 64,666 shares of CERUS CORP¹³
• Mar 1, 2024Granted 575,000 shares of CERUS CORP¹⁴
• Aug 11, 2023Returned to company 23,643 shares of CHINOOK THERAPEUTICS, INC.⁶
• May 30, 2023Sold 1,155 shares at $23.30 of CHINOOK THERAPEUTICS, INC.¹⁵
• May 26, 2023Exercised options 3,300 shares of CHINOOK THERAPEUTICS, INC.¹⁵
• Mar 13, 2023Sold 22,732 shares at $2.80 of CERUS CORP¹⁶
• Mar 13, 2023Sold 37,748 shares at $2.80 of CERUS CORP¹⁶
• Mar 12, 2023Exercised options 64,667 shares of CERUS CORP¹⁶
• Mar 12, 2023Exercised options 107,525 shares of CERUS CORP¹⁶
• Mar 1, 2023Granted 575,000 shares of CERUS CORP¹⁷