Cerus (CERS) legal chief sells 30,000 shares in preset plan

Rhea-AI Filing Summary

CERUS CORP executive Chrystal Jensen, Chief Legal Officer, reported a sale of 30,000 shares of common stock on 2026-08-17. The transaction was a planned trade pursuant to a Rule 10b5-1 plan and executed at a weighted average price of $2.9843 per share, with individual sale prices ranging from $2.92 to $3.04. After this sale, Jensen directly holds 936,657 shares of Cerus common stock.

Insider Trade Summary 10b5-1

Net Seller: 30,000 shares

Net Sell 1 txn

Insider Jensen Chrystal

Role Chief Legal Officer

Sold 30,000 shs ($90K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	30,000	$2.9843	$90K

Holdings After Transaction: Common Stock — 936,657 shares (Direct)

Footnotes (2)

1. F1. This transaction was executed pursuant to a 10b5-1 plan.
2. F2. Represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $2.92 to $3.04 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.

Key Figures

Shares sold: 30,000 shares Weighted average sale price: $2.9843 per share Sale price range: $2.92 to $3.04 per share +2 more

5 metrics

Shares sold 30,000 shares Common stock sale reported for transaction dated 2026-08-17

Weighted average sale price $2.9843 per share Weighted average price for 30,000 shares sold

Sale price range $2.92 to $3.04 per share Range of individual transaction prices within the reported sale

Shares owned after transaction 936,657 shares Directly owned common shares following the 30,000-share sale

Net buy/sell shares -30,000 shares Net shares sold across all reported transactions in this filing

Key Terms

Rule 10b5-1 plan, weighted average sales price, open market or private transaction

3 terms

Rule 10b5-1 plan regulatory

"This transaction was executed pursuant to a 10b5-1 plan."

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

weighted average sales price financial

"Represents a weighted average sales price."

open market or private transaction financial

"Sale in open market or private transaction"

FAQ

What insider transaction did CERUS CORP (CERS) report for Chrystal Jensen?

CERUS CORP reported that Chief Legal Officer Chrystal Jensen sold 30,000 shares of common stock on 2026-08-17. The sale was executed under a Rule 10b5-1 trading plan at a weighted average price of $2.9843 per share.

At what price did Chrystal Jensen sell CERUS CORP (CERS) shares?

The reported weighted average sale price was $2.9843 per share. According to the disclosure, the 30,000 shares were sold in multiple transactions at prices ranging from $2.92 to $3.04 per share, inclusive, in open-market or private transactions.

How many CERUS CORP (CERS) shares does Chrystal Jensen hold after the reported sale?

After the reported sale, Chrystal Jensen directly holds 936,657 shares of CERUS CORP common stock. This figure reflects her direct ownership following the 30,000-share disposition disclosed in the Form 4 filed for the transaction dated 2026-08-17.

Was the CERUS CORP (CERS) insider sale by Chrystal Jensen under a Rule 10b5-1 plan?

Yes. The filing states the transaction was executed pursuant to a Rule 10b5-1 plan. The document-level checkbox for Rule 10b5-1 is marked true, and a footnote explicitly confirms the sale occurred under such a pre-arranged trading plan.

How many CERUS CORP (CERS) shares did Chrystal Jensen sell in this Form 4?

Chrystal Jensen sold 30,000 shares of CERUS CORP common stock. The sale is coded as a "S" transaction, indicating a sale in an open market or private transaction, with a reported weighted average price of $2.9843 per share for the sold shares.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/17/2026 - 08:19 PM Accepted by SEC EDGAR 08/17/2026 - 08:18 PM Learn about SEC filing dates

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^*

Jensen Chrystal

(Last) (First) (Middle)

C/O CERUS CORPORATION

1220 CONCORD AVE SUITE 600

(Street)

CONCORD CALIFORNIA 94520

(City) (State) (Zip)

UNITED STATES

(Country)

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 Legal Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026

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

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

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

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	08/17/2026		S		30,000(1)	D	$2.9843(2)	936,657	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. This transaction was executed pursuant to a 10b5-1 plan.

2. Represents a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $2.92 to $3.04 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.

	Chrystal N. Jensen	08/17/2026
	** 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.
* Form 4: SEC 1474 (03-26)