Richard J. Benjamin - 05 Mar 2026 Form 4/A - Amendment Insider Report for CERUS CORP (CERS)

Role
Chief Medical Officer
Signature
Richard J. Benjamin, by Chrystal N. Jensen, attorney-in-fact
Issuer symbol
CERS
Transactions as of
05 Mar 2026
Net transactions value
-$250,932
Form type
4/A - Amendment
Filing time
10 Mar 2026, 07:05:49 UTC
Date Of Original Report
09 Mar 2026
Previous filing
04 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Benjamin Richard J Chief Medical Officer C/O CERUS CORPORATION, 1220 CONCORD AVE SUITE 600, CONCORD Richard J. Benjamin, by Chrystal N. Jensen, attorney-in-fact 10 Mar 2026 0001296322

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CERS Common Stock Award +55,220 +5.8% $0.000000* 1,004,995 05 Mar 2026 Direct
transaction CERS Common Stock Sale $126,299 -61,233 -6.1% $2.06 943,762 05 Mar 2026 Direct F1, F2
transaction CERS Common Stock Sale $48,603 -24,235 -2.6% $2.01 919,527 06 Mar 2026 Direct F3, F4
transaction CERS Common Stock Sale $76,029 -40,426 -4.4% $1.88 879,101 09 Mar 2026 Direct F1, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Represents shares sold pursuant to a 10b5-1 plan and does not represent a discretionary sale by the reporting person.
F2 Represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $2.02 to $2.17 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.
F3 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.
F4 Represents a weighted average sales price. These shares were sold in a block trade 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 pursuant to such block trade.
F5 Represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $1.855 to $1.91 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.