Cerus (CERS) CFO share sale covers taxes on RSU vesting

Rhea-AI Filing Summary

Cerus Corporation’s Chief Financial Officer Kevin Dennis Green reported an open-market sale of 127,544 shares of Common Stock at a weighted average price of $1.6572 per share. According to the disclosure, these shares were sold under an instruction intended to comply with Rule 10b5-1.

The filing explains the sale was elected on the date of grant to cover statutory tax withholding obligations and related brokerage fees tied to the vesting of certain restricted stock units, and is not a discretionary sale by the CFO. After this transaction, he directly holds 1,040,551 shares of Cerus common stock.

Insider Trade Summary 10b5-1

Net Seller: 127,544 shares ($211,366)

Net Sell 1 txn

Insider Green Kevin Dennis

Role Chief Financial Officer

Sold 127,544 shs ($211K)

Type	Security	Shares	Price	Value
Sale	Common Stock	127,544	$1.6572	$211K

Holdings After Transaction: Common Stock — 1,040,551 shares (Direct)

Footnotes (1)

1. 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 $1.62 to $1.73 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.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Green Kevin Dennis

(Last) (First) (Middle)

C/O CERUS CORPORATION

1220 CONCORD AVE SUITE 600

(Street)

CONCORD CA 94520

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CERUS CORP [ CERS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/12/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/12/2026		S		127,544(1)	D	$1.6572(2)	1,040,551	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. Represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $1.62 to $1.73 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.

	Kevin D. Green, by Chrystal N. Jensen, attorney-in-fact	03/16/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Cerus (CERS) disclose in this Form 4?

Cerus disclosed that CFO Kevin Dennis Green sold 127,544 shares of Common Stock at a weighted average price of $1.6572 per share. The sale was reported as an open-market transaction in connection with restricted stock unit vesting.

Why did the Cerus (CERS) CFO sell 127,544 shares of stock?

The CFO’s sale of 127,544 shares was made under an instruction intended to comply with Rule 10b5-1 to cover statutory tax withholding obligations and related brokerage fees arising from restricted stock unit vesting, rather than as a discretionary sale for portfolio reasons.

How many Cerus (CERS) shares does the CFO hold after this transaction?

Following the reported sale, CFO Kevin Dennis Green directly holds 1,040,551 shares of Cerus Common Stock. This figure reflects his remaining direct ownership after disposing of 127,544 shares in the Rule 10b5-1 tax-related transaction tied to restricted stock unit vesting.

At what prices were the Cerus (CERS) shares sold by the CFO?

The shares were sold at a weighted average price of $1.6572 per share, across multiple trades executed between $1.62 and $1.73. The filing notes the CFO can provide detailed breakdowns of share amounts at each price upon request to interested parties.

Was the Cerus (CERS) CFO’s stock sale part of a pre-arranged trading plan?

Yes. The filing states the shares were sold pursuant to an instruction intended to comply with Rule 10b5-1 that was elected on the grant date, indicating a pre-arranged mechanism primarily designed to satisfy tax withholding requirements associated with restricted stock unit vesting.

Does the Cerus (CERS) Form 4 indicate any discretionary selling by the CFO?

The disclosure specifies that the transaction does not represent a discretionary sale by the reporting person. Instead, it was executed under a Rule 10b5-1 instruction established at grant to cover statutory tax withholding and brokerage fees linked to restricted stock unit vesting.