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sellWeak cluster of 510b5-1 plan

William Mariner Greenman sold $157k of CERS

President and CEO at CERUS CORP. 78,187 shares at an average of $2.01, traded Mar 6, 2026, filed Mar 9, 2026.

Warning score
31
Value
$157k
78,187 shares
Holdings after
5,446,250
-1% from before
From 52-week low
+66%
low $1.16, close $1.93
From 52-week high
-30%
high $2.74, as of Mar 6, 2026

Score components

  • Role
    CEO
    +25
  • Trade size
    $157k at market
    +11
  • Share of holdings sold
    Sold 1.4% of holdings
    0
  • Cluster
    5 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

CERSOct 9, 2026 · close 2.30
Since filing Mar 9, 2026: +19.2%SPY +15.7% · excess +3.5%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001377258-26-000004, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 5, 2026AGrant or award
Common Stock10b5-1
+193,270$0.00$05,524,437Mar 9, 2026
Mar 6, 2026SOpen-market sale
Common Stock10b5-1
-78,187$2.01$157k5,446,250Mar 9, 2026

Related signals

Other insiders at CERUS CORP and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
26Weak
CERSsell 510b5-1
CERUS CORP
Richard J Benjamin
Chief Medical Officer
$169k
101,740 shares
-12%
41Moderate
CERSsell 510b5-1
CERUS CORP
William Mariner Greenman
President and CEO
$742k
447,757 shares
-8%
34Weak
CERSsell 510b5-1
CERUS CORP
Kevin Dennis Green
Chief Financial Officer
$211k
127,544 shares
-11%
27Weak
CERSsell 510b5-1
CERUS CORP
Chrystal Jensen
Chief Legal Officer
$187k
113,008 shares
-11%
28Weak
CERSsell 510b5-1
CERUS CORP
Vivek K Jayaraman
Chief Operating Officer
$274k
165,200 shares
-9%
28Weak
CERSsell 510b5-1
CERUS CORP
Richard J Benjamin
Chief Medical Officer
$251k
125,894 shares
-13%
28Weak
CERSsell 510b5-1
CERUS CORP
Kevin Dennis Green
Chief Financial Officer
$170k
83,021 shares
-7%
17Weak
CERSsell 510b5-1
CERUS CORP
Chrystal Jensen
Chief Legal Officer
$62k
30,845 shares
-3%
23Weak
CERSsell 510b5-1
CERUS CORP
Vivek K Jayaraman
Chief Operating Officer
$68k
34,094 shares
-2%
5Weak
CERSsell10b5-1
CERUS CORP
Chrystal Jensen
Chief Legal Officer
$94k
55,000 shares
-7%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

William Mariner Greenman sold $157k of CERS | InsiderTell