CERS
Cerus (CERS)
NASDAQ
$2.69+$0.03 (+1.13%)
Price as of Jun 03, 2026 7:20 PM EDT
  • $609.1M
    Market Cap
  • 87.50%
    1-Year Change
  • Medical Devices
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
10.77%
21.6M
-343,484 (-1.59%)
Mar 31, 2026
ARK INVESTMENT MANAGEMENT LLC
9.56%
19.2M
+960,944 (+5.02%)
Mar 31, 2026
BLACKROCK FUNDING, INC. /DE
7.40%
14.8M
+150,408 (+1.01%)
Dec 31, 2024
BLACKROCK INC.
6.93%
13.9M
+255,116 (+1.84%)
Jun 30, 2024
VANGUARD GROUP INC
5.57%
11.2M
+379,135 (+3.40%)
Dec 31, 2025
SOLEUS CAPITAL MANAGEMENT, L.P.
5.37%
10.8M
+6.8M (+62.80%)
Mar 31, 2026
BAKER BROS. ADVISORS LP
4.99%
10.0M
0 (0.00%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions2.7B (79.94%)
  • Mutual Funds664.1M (19.54%)
  • Insiders17.6M (0.52%)
  • Other0 (0.00%)

Insider Transactions

  • 0.52% (17.6M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $77,156.25
    Amount of InsiderBuying (last 12 months)
  • 5
    Number of InsiderSelling (last 12 months)
  • $43.0M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
NACHTSHEIM JAMI K
Award
Jun 02, 2026
$0.00
60,000
$0.00
268,362
Shan Hua
Award
Jun 02, 2026
$0.00
60,000
$0.00
192,386
Lucena Ann
Award
Jun 02, 2026
$0.00
60,000
$0.00
232,284
Witney Frank
Award
Jun 02, 2026
$0.00
60,000
$0.00
340,059
Gregory Dean A.
Award
Jun 02, 2026
$0.00
60,000
$0.00
146,725
BJERKHOLT ERIC
Award
Jun 02, 2026
$0.00
60,000
$0.00
282,133
Jayaraman Vivek K
Chief Operating Officer
Sell
May 29, 2026
$50,001.00
16,667
$3.00
1.7M
Jayaraman Vivek K
Chief Operating Officer
Sell
May 01, 2026
$50,001.00
16,667
$3.00
1.7M
Menard Chrystal
Chief Legal Officer
Award
Apr 01, 2026
$0.00
200,000
$0.00
1.1M
Benjamin Richard J
Chief Medical Officer
Sell
Mar 12, 2026
$168,603.53
101,740
$1.66
777,361
Greenman William Mariner
President and CEO
Sell
Mar 12, 2026
$742,022.90
447,757
$1.66
5.0M
Green Kevin Dennis
Chief Financial Officer
Sell
Mar 12, 2026
$211,365.92
127,544
$1.66
1.0M
Benjamin Richard J
Chief Medical Officer
Sell
Mar 09, 2026
$76,029.18
40,426
$1.88
879,101
Jayaraman Vivek K
Chief Operating Officer
Sell
Mar 06, 2026
$68,375.52
34,094
$2.01
1.9M
Greenman William Mariner
President and CEO
Sell
Mar 06, 2026
$156,804.03
78,187
$2.01
5.4M
Menard Chrystal
Chief Legal Officer
Sell
Mar 06, 2026
$61,859.65
30,845
$2.01
1.1M
Benjamin Richard J
Chief Medical Officer
Sell
Mar 06, 2026
$48,603.29
24,235
$2.01
919,527
Jayaraman Vivek K
Chief Operating Officer
Award
Mar 05, 2026
$0.00
80,320
$0.00
1.9M
Greenman William Mariner
President and CEO
Award
Mar 05, 2026
$0.00
193,270
$0.00
5.5M
Menard Chrystal
Chief Legal Officer
Award
Mar 05, 2026
$0.00
55,220
$0.00
1.1M
Benjamin Richard J
Chief Medical Officer
Award
Mar 05, 2026
$0.00
55,220
$0.00
1.0M
Benjamin Richard J
Chief Medical Officer
Sell
Mar 05, 2026
$126,305.31
61,233
$2.06
943,762
Greenman William Mariner
President and CEO
Award
Mar 02, 2026
$0.00
1.2M
$0.00
5.3M
Benjamin Richard J
Chief Medical Officer
Award
Mar 02, 2026
$0.00
264,000
$0.00
949,775
Menard Chrystal
Chief Legal Officer
Award
Mar 02, 2026
$0.00
300,000
$0.00
1.0M
Green Kevin Dennis
Chief Financial Officer
Award
Mar 02, 2026
$0.00
300,000
$0.00
1.2M
Jayaraman Vivek K
Chief Operating Officer
Award
Mar 02, 2026
$0.00
420,000
$0.00
1.9M
Menard Chrystal
Chief Legal Officer
Sell
Nov 24, 2025
$93,500.00
55,000
$1.70
728,294
Gregory Dean A.
Buy
Aug 25, 2025
$31,250.00
25,000
$1.25
86,725
BJERKHOLT ERIC
Award
Jun 03, 2025
$0.00
60,000
$0.00
222,133