Carol Moore - Mar 1, 2022 Form 4 Insider Report for CERUS CORP (CERS)

Role: SVP Reg. & Quality
Signature: Carol Moore by Chrystal Menard, attorney-in-fact
Stock symbol: CERS
Transactions as of: Mar 1, 2022
Transactions value $: $0
Form type: 4
Date filed: 3/3/2022, 07:02 PM
Previous filing: Jan 5, 2022
Next filing: Mar 16, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CERS	Restricted Stock Unit	Award	$0	+45K	+24.54%	$0.00	228K	Mar 1, 2022	Direct	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CERS	Option (Right to Buy)	Award		+90K			90K	Mar 1, 2022	Common Stock	90K	$5.76	Direct	F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the number of shares underlying RSUs. Each RSU represents a contingent right to receive one share of common stock of the Issuer. The RSUs vests in three equal annual installments beginning on March 12, 2023, subject to the Reporting Person's continuous service to the Issuer through such vesting date.
F2	Includes 2,068 shares purchased under Issuer's Employee Stock Purchase Plan on 02/28/22.
F3	One fourth (1/4th) of the shares subject to the Option shall vest on the first anniversary of the date of grant, and one forty-eighth (1/48th) of the shares subject to the Option vest monthly thereafter.
F4	Not applicable.