CUSIP No. 747324101
Exhibit 99.1
JOINT FILING AGREEMENT
The undersigned hereby agree that the statement on Schedule 13G to which this Agreement is annexed as Exhibit 99.1, including subsequent amendments thereto, is filed on behalf of each of them in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
Dated: February 11, 2022
PFIZER INC. | ||||||||
By: | /s/ Susan Grant | |||||||
Name: | Susan Grant | |||||||
Title: | Assistant Secretary | |||||||
PFIZER VENTURES (US) LLC | ||||||||
By: | /s/ Susan Grant | |||||||
Name: | Susan Grant | |||||||
Title: | Secretary |