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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•35 filings

CERS

CERUS CORP

Net sales of $89.5K over the last 3 months

1 seller account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

−$89,529

0 buyers · 1 sellers

12-month purchases

$0.00

0 distinct insiders

12-month sales

$705,106

5 distinct insiders

Highlighted alerts

2

8 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

48
Raw transactions
Everything returned by the filing
10
Voluntary view
P/S trades after deterministic checks
38
Administrative noise
Stored, never alerted
40
10b5-1
Shown as informational
SEC ownership XML facts
Code
S
Shares
42,359
Price
$2.94
Footnotes
4

Represents shares sold pursuant to an instruction intended to comply with the requirement of Rule 10b5-1 that was elected by the Reporting Person on the date of grant to cover statutory tax withholding obligations and corresponding brokerage fees in connection with the vesting of certain restricted stock units and does not represent a discretionary sale by the reporting person. Represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $2.84 to $3.03 per share, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the aforementioned range set forth. Each RSU represents a contingent right to receive one share of common stock of the Issuer. The RSUs vest in two annual installments with 33% of the grant vesting on July 1, 2027, and 67% of the grant vesting on July 1, 2028, subject to the Reporting Person's continuous service to the Issuer through such vesting date. Each performance right represents a contingent right to receive one share of Cerus common stock. The performance rights vest upon Cerus common stock achieving a specified price per share.

Raspberry interpretation
Informational — no alert

Reason: tax_withholding. The filing footnotes identify tax withholding. The trade is reported under a Rule 10b5-1 plan.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

10 transactions

Jensen Chrystal

Chief Legal Officer

Sale 10b5-1
Shares
30,000
Price
$2.98
Value
$89,529
Open SEC filing

Jayaraman Vivek K

Chief Executive Officer

Sale 10b5-1
Shares
16,666
Price
$3.16
Value
$52,665
Open SEC filing

BJERKHOLT ERIC

Director

SaleAlert
Shares
20,454
Price
$2.60
Value
$53,180
Open SEC filing

Jayaraman Vivek K

Chief Operating Officer

Sale 10b5-1
Shares
16,667
Price
$3.00
Value
$50,001
Open SEC filing

Jayaraman Vivek K

Chief Operating Officer

Sale 10b5-1
Shares
16,667
Price
$3.00
Value
$50,001
Open SEC filing

Benjamin Richard J

Chief Medical Officer

Sale 10b5-1
Shares
40,426
Price
$1.88
Value
$76,029
Open SEC filing

Green Kevin Dennis

Chief Financial Officer

Sale 10b5-1
Shares
55,225
Price
$2.06
Value
$113,902
Open SEC filing

Benjamin Richard J

Chief Medical Officer

Sale 10b5-1
Shares
61,233
Price
$2.06
Value
$126,299
Open SEC filing

Jensen Chrystal

Chief Legal Officer

Sale 10b5-1
Shares
55,000
Price
$1.70
Value
$93,500
Open SEC filing

Gregory Dean A.

Director

PurchaseAlert
Shares
25,000
Price
$1.25
Value
$31,250
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.