secwatch / observer
TNDM TANDEM DIABETES CARE INC
CIK 0001438133 48 ready 8-Ks latest May 15, 2026, 7:59 AM ET RSS · JSON
Activity: QUIET 0 filings / 30d vs 1 baseline
Ready 8-Ks 48
Latest filing May 21, 2026, 4:10 PM ET
Top materiality 0.80
Event mix earnings ×20 · leadership ×9 · regulatory ×7
Sentiment 10 pos · 1 neg · 37 neu
Latest earnings reported 2026-Q1
Executive change recent →

Recent 8-K filings for TNDM

Executive changes

Departed

Mark Novara

Executive Vice President and Chief Commercial Officer
TNDM · TANDEM DIABETES CARE INC
Effective
2026-05-18
Filed
May 15, 2026, 7:59 AM ET
On May 11, 2026, Mark Novara, the Executive Vice President and Chief Commercial Officer of Tandem Diabetes Care, Inc. (the “Company”), was notified that his employment with the Company is being terminated without cause.
Appointed

Jean-Claude Kyrillos

Chief Operating Officer
TNDM · TANDEM DIABETES CARE INC
Effective
2024-06-21
Filed
June 21, 2024, 7:59 PM ET
On June 19, 2024, the Board of Directors of Tandem Diabetes Care, Inc. (the “Company”) approved the appointment of Jean-Claude Kyrillos as Executive Vice President, Chief Operating Officer effective June 21, 2024.
Departed

David B. Berger

Executive Vice President and Chief Operating Officer
TNDM · TANDEM DIABETES CARE INC
Effective
2023-12-31
Filed
December 11, 2023, 6:59 PM ET
on November 7, 2023, the Company and David B. Berger, the Company’s Executive Vice President and Chief Operating Officer, determined that Mr. Berger will be stepping down from his current position effective December 31, 2023.
Departed

David B. Berger

Executive Vice President and Chief Operating Officer
TNDM · TANDEM DIABETES CARE INC
Effective
2023-12-31
Filed
November 13, 2023, 6:59 PM ET
On November 7, 2023, Tandem Diabetes Care, Inc. (“Tandem” or the “Company”) and David B. Berger, the Company’s Executive Vice President and Chief Operating Officer, determined that he will be stepping down from his current position effective December 31, 2023.
Departed

Brian B. Hansen

Executive Vice President and Chief Commercial Officer
TNDM · TANDEM DIABETES CARE INC
Effective
2023-12-31
Filed
August 18, 2023, 7:59 PM ET
On August 17, 2023, Brian B. Hansen, Executive Vice President and Chief Commercial Officer of Tandem Diabetes Care, Inc. (the Company), notified the Company of his decision to resign from his role as Executive Vice President and Chief Commercial Officer, effective December 31, 2023.
Role change

Rebecca Robertson

Chair of the Board
TNDM · TANDEM DIABETES CARE INC
Effective
2023-03-01
Filed
February 22, 2023, 6:59 PM ET
Rebecca Robertson will succeed Kim D. Blickenstaff as Chair of the Board of Directors (the “Board”), effective March 1, 2023.
Role change

John Allen

Lead Independent Director
TNDM · TANDEM DIABETES CARE INC
Effective
2023-03-01
Filed
February 22, 2023, 6:59 PM ET
Mr. Allen will transition from the role of Lead Independent Director to a member of the Board.
Role change

Kim D. Blickenstaff

Chair of the Board
TNDM · TANDEM DIABETES CARE INC
Effective
2023-03-01
Successor
Rebecca Robertson
Filed
February 22, 2023, 6:59 PM ET
Mr. Blickenstaff will transition from the role of Chair of the Board to a member of the Board
Appointed

Joao Malagueira

Director
TNDM · TANDEM DIABETES CARE INC
Effective
2022-06-15
Filed
June 16, 2022, 7:59 PM ET
elected Joao Malagueira, age 56, to serve as a Class I director on the Board
Appointed

Myoung Cha

Director
TNDM · TANDEM DIABETES CARE INC
Effective
2022-06-15
Filed
June 16, 2022, 7:59 PM ET
elected Myoung Cha, age 45, to serve as a Class III director on the Board
Departed

Douglas A. Roeder

Director
TNDM · TANDEM DIABETES CARE INC
Filed
March 15, 2022, 7:59 PM ET
On March 11, 2022, Douglas A. Roeder, notified the Company of his decision not to stand for re-election at the Company’s 2022 Annual Meeting of Stockholders
Appointed

David B. Berger

Executive Vice President, Chief Operating Officer and Assistant Secretary
TNDM · TANDEM DIABETES CARE INC
Effective
2022-02-03
Filed
February 22, 2022, 6:59 PM ET
On February 3, 2022, the Board of Directors appointed David B. Berger, age 52, to serve as the Company’s Executive Vice President, Chief Operating Officer and Assistant Secretary.

Earnings & guidance

2026-Q1 EPS reported -$0.30 filing →

Materiality & sentiment trend

Max materiality 0.80 · Median 0.50 · Most common event earnings

10 positive 1 negative 37 neutral

source · TNDM on sec.gov