Cerus Corp (CERS) Insider Ownership

Historic Insider Ownership Trends

Data spanning the past 90 days through February 19, 2026 reveals that Cerus's three principal insider shareholders consist of President And Ceo William Mariner Greenman (4.12Mn shares), Chief Scientific Officer Laurence M Corash (2.34Mn shares), Chief Operating Officer Vivek K Jayaraman (1.43Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
William Mariner Greenman President And Ceo 4,115,845 17 Mar, 2025
Laurence M Corash Chief Scientific Officer 2,339,740 14 Mar, 2024
Vivek K Jayaraman Chief Operating Officer 1,431,326 17 Mar, 2025
Kevin Dennis Green Chief Financial Officer 875,867 17 Mar, 2025
Chrystal Jensen Chief Legal Officer 728,294 26 Nov, 2025
Richard J Benjamin Chief Medical Officer 685,775 17 Mar, 2025
Carol Moore Svp Reg. & Quality 490,623 14 Mar, 2024
Frank Witney 280,059 04 Jun, 2025
Eric Bjerkholt 222,133 04 Jun, 2025
Timothy B Anderson 213,993 03 Jun, 2021
Jami K Nachtsheim 208,362 04 Jun, 2025
Daniel N Jr Swisher 207,045 04 Jun, 2025
Timothy L. Moore 205,073 04 Jun, 2025
Ann Lucena 172,284 04 Jun, 2025
Gail Schulze 163,420 06 Jun, 2024
Hua Shan 132,386 04 Jun, 2025
Dean A. Gregory 86,725 25 Aug, 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
24 Nov, 2025 Chrystal Jensen Common Stock D 55,000 $1.70 728,294 D S
25 Aug, 2025 Dean A. Gregory - - 86,725 D
25 Aug, 2025 Dean A. Gregory Common Stock A 25,000 $1.25 86,725 D P
03 Jun, 2025 Eric Bjerkholt Common Stock A 60,000 $0.00 222,133 D A
03 Jun, 2025 Jami K Nachtsheim Common Stock A 60,000 $0.00 208,362 D A
03 Jun, 2025 Daniel N Jr Swisher Common Stock A 60,000 $0.00 207,045 D A
03 Jun, 2025 Frank Witney - - 280,059 D
03 Jun, 2025 Frank Witney Common Stock A 60,000 $0.00 280,059 D A
03 Jun, 2025 Timothy L. Moore Common Stock A 60,000 $0.00 205,073 D A
03 Jun, 2025 Ann Lucena Common Stock A 60,000 $0.00 172,284 D A
03 Jun, 2025 Hua Shan Common Stock A 60,000 $0.00 132,386 D A
14 Mar, 2025 Richard J Benjamin Common Stock D 30,075 $1.45 685,775 D S
14 Mar, 2025 William Mariner Greenman Common Stock D 122,827 $1.45 4,115,845 D S
14 Mar, 2025 Kevin Dennis Green Common Stock D 36,740 $1.45 875,867 D S
14 Mar, 2025 Chrystal Jensen Common Stock D 30,075 $1.45 783,294 D S
14 Mar, 2025 Vivek K Jayaraman Common Stock D 46,004 $1.45 1,431,326 D S
14 Mar, 2025 Vivek K Jayaraman - - 1,431,326 D
13 Mar, 2025 Richard J Benjamin Common Stock D 18,949 $1.45 715,850 D S
13 Mar, 2025 William Mariner Greenman Common Stock D 71,086 $1.45 4,238,672 D S
13 Mar, 2025 William Mariner Greenman - - 4,238,672 D