Susan Moran - 22 Jan 2024 Form 4 Insider Report for RayzeBio, Inc. (RYZB)

Role: CHIEF MEDICAL OFFICER
Signature: /s/ Jeff Woodley, Attorney-in-Fact
Issuer symbol: RYZB
Transactions as of: 22 Jan 2024
Transactions value $: $100,035
Form type: 4
Filing time: 06 Feb 2024, 18:11:00 UTC
Previous filing: 17 Nov 2023
Next filing: 27 Feb 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RYZB	Common Stock	Options Exercise	$100,035	+30,875	+10.6%	$3.24^*	322,647	22 Jan 2024	Direct

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	RYZB	Employee Stock Option (right to buy)	Options Exercise	$0	-30,875	-33.7%	$0.000000	60,757	22 Jan 2024	Common Stock	30,875	$3.24	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The option is subject to an early exercise provision and is immediately exercisable. 25% of the shares vested on September 29, 2022, and the remaining shares shall vest in 36 equal monthly installments thereafter.