secwatch / observer
PROK PROKIDNEY CORP.
CIK 0001850270 50 ready 8-Ks latest August 10, 2026, 4:11 PM ET RSS · JSON
Activity: NORMAL 1 filings / 30d vs 1 baseline
Ready 8-Ks 50
Latest filing August 10, 2026, 4:11 PM ET
Top materiality 0.85
Event mix other_material ×23 · earnings ×14 · leadership ×6
Sentiment 10 pos · 1 neg · 39 neu
Executive change recent →

Recent 8-K filings for PROK

Executive changes

Appointed

Ulrich Ernst

Executive Vice President, Technical Operations
PROK · PROKIDNEY CORP.
Effective
2024-03-25
Filed
March 25, 2024, 7:59 PM ET
On March 25, 2024, ProKidney Corp. (the “Company”) announced the appointment of Ulrich Ernst, Ph.D. as the Company’s Executive Vice President, Technical Operations effective as of March 25, 2024.
Departed

Dr. Bertram

Ceo
PROK · PROKIDNEY CORP.
Effective
2024-03-13
Filed
March 18, 2024, 7:59 PM ET
On March 13, 2024 (the “Effective Date”), the Company entered into a Separation Agreement (the “Separation Agreement”) with Dr. Bertram.
Departed

Deepak Jain

Chief Operating Officer
PROK · PROKIDNEY CORP.
Effective
2024-03-13
Filed
March 18, 2024, 7:59 PM ET
On March 13, 2024 (the “Effective Date”), the Company entered into a Separation Agreement (the “Separation Agreement”) with Dr. Jain.
Appointed

Bruce Culleton

Chief Executive Officer
PROK · PROKIDNEY CORP.
Effective
2023-11-15
Filed
December 5, 2023, 6:59 PM ET
In connection with Mr. Culleton’s appointment to serve as the Company’s Chief Executive Officer, on December 3, 2023, Dr. Culleton and ProKidney, LLC, a Delaware limited company and subsidiary of the Company, entered into an employment agreement, effective as of November 15, 2023 (the “Employment Agreement”), pursuant to which Dr. Culleton will serve as Chief Executive Officer of the Company and its subsidiaries and affiliates.
Departed

Deepak Jain

Chief Operating Officer
PROK · PROKIDNEY CORP.
Effective
2023-11-28
Filed
November 30, 2023, 6:59 PM ET
On November 28, 2023, ProKidney Corp. (“ProKidney” or the “Company”) notified Deepak Jain, Ph.D., Chief Operating Officer of the Company, of the termination of his employment without cause, effective as of the same date, following which Dr. Jain is expected to continue to serve as a consultant to the Company.
Appointed

Bruce Culleton

Class III Director
PROK · PROKIDNEY CORP.
Effective
2023-11-15
Filed
November 13, 2023, 6:59 PM ET
the Board approved the appointment of Bruce Culleton, MD, as Chief Executive Officer and as a Class III director of the Company, effective as of the Effective Date.
Departed

Tim Bertram

Director
PROK · PROKIDNEY CORP.
Effective
2023-11-15
Successor
Bruce Culleton
Filed
November 13, 2023, 6:59 PM ET
Dr. Bertram will resign from the Board of Directors (the “Board”) of the Company.
Appointed

Bruce Culleton

Chief Executive Officer
PROK · PROKIDNEY CORP.
Effective
2023-11-15
Filed
November 13, 2023, 6:59 PM ET
the Board approved the appointment of Bruce Culleton, MD, as Chief Executive Officer and as a Class III director of the Company, effective as of the Effective Date.
Departed

Tim Bertram

Chief Executive Officer
PROK · PROKIDNEY CORP.
Effective
2023-11-15
Successor
Bruce Culleton
Filed
November 13, 2023, 6:59 PM ET
the board of directors (the “Board”) of ProKidney Corp. (the “Company”) approved the termination, without cause, of Tim Bertram, Ph.D., Chief Executive Officer of the Company, effective November 15, 2023
Appointed

Jennifer Fox

member of the board of directors
PROK · PROKIDNEY CORP.
Effective
2022-07-11
Filed
July 15, 2022, 7:59 PM ET
On July 11, 2022, the New ProKidney board of directors appointed Jennifer Fox as a member of the board of directors
Appointed

Uma Sinha

Director
PROK · PROKIDNEY CORP.
Effective
2021-09-24
Filed
September 24, 2021, 7:59 PM ET
On September 24, 2021, Uma Sinha PhD was appointed to the board of directors (the “Board”) of Social Capital Suvretta Holdings Corp. III (the “Company”), effective immediately.
Appointed

Marc Semigran

Director
PROK · PROKIDNEY CORP.
Effective
2021-06-29
Filed
July 2, 2021, 7:59 PM ET
On June 29, 2021, in connection with the IPO, Marc Semigran was appointed to the board of directors of the Company

Materiality & sentiment trend

Max materiality 0.85 · Median 0.60 · Most common event other_material

10 positive 1 negative 39 neutral

source · PROK on sec.gov