Mary Szela - May 19, 2023 Form 4 Insider Report for Prometheus Biosciences, Inc. (RXDX)

Role: Director
Signature: /s/ Timothy K. Andrews, attorney-in-fact for Mary Szela
Stock symbol: RXDX
Transactions as of: May 19, 2023
Transactions value $: $0
Form type: 4
Date filed: 5/19/2023, 05:47 PM
Previous filing: Jun 23, 2022
Next filing: Jun 2, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RXDX	Common Stock	Award	$0	+2.07K		$0.00	2.07K	May 19, 2023	Direct	F1

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

Explanation of Responses:

Id	Content
F1	Award of restricted stock units ("RSUs") granted under the Issuer's 2021 Incentive Award Plan (the "2021 Plan"). Each RSU entitles the Reporting Person to receive one share of Issuer common stock upon vesting. The RSUs shall vest in full upon the earlier to occur of (i) the first anniversary of the date of grant, (ii) the Issuer's next occurring annual meeting of stockholders, or (iii) a Change of Control (as defined in the 2021 Plan), subject to the Reporting Person's continued service with the Issuer on such vesting date.

Content

Award of restricted stock units ("RSUs") granted under the Issuer's 2021 Incentive Award Plan (the "2021 Plan"). Each RSU entitles the Reporting Person to receive one share of Issuer common stock upon vesting. The RSUs shall vest in full upon the earlier to occur of (i) the first anniversary of the date of grant, (ii) the Issuer's next occurring annual meeting of stockholders, or (iii) a Change of Control (as defined in the 2021 Plan), subject to the Reporting Person's continued service with the Issuer on such vesting date.