Leadership changes, September 2026
Executive appointments and departures from SEC 8-K filings, updated within hours of each filing.
Updated Nov 6, 2026
Changes
1,052
Appointments
619
Departures
64
Browse by role
September 2026
Get new CFO appointments the day the filing lands.
Filters
1,052 changes
| Filing date | Company | Person | Role | Change | Effective date | Source |
|---|---|---|---|---|---|---|
| Sep 14, 2026 | Rainmaker Worldwide Inc. | Michael O’Connor | Interim Chief Executive OfficerCEO | Appointed | May 1, 2026 | SEC 8-K |
| Sep 14, 2026 | Rainmaker Worldwide Inc. | Kelly White | Interim Vice President, FinanceInterim Vice President, Finance | Appointed | May 1, 2026 | SEC 8-K |
| Sep 14, 2026 | RARE ELEMENT RESOURCES LTD | Josef Bilant | Chief Operating OfficerCOO | Appointed | Oct 5, 2026 | SEC 8-K |
| Sep 14, 2026 | Rimini Street, Inc. | Steven Hershkowitz | Executive Vice President and Chief Revenue OfficerCRO | Departed | Sep 8, 2026 | SEC 8-K |
| Sep 14, 2026 | Sionna Therapeutics, Inc. | Caroline Stark Beer, M.B.A. | Chief Business OfficerChief Business Officer | Departed | Sep 15, 2026 | SEC 8-K |
| Sep 14, 2026 | Sionna Therapeutics, Inc. | Charlotte McKee | Chief Medical OfficerCMO | Appointed | Sep 16, 2026 | SEC 8-K |
| Sep 14, 2026 | Sionna Therapeutics, Inc. | Elena Ridloff | Chief Financial OfficerCFO | Appointed | Sep 16, 2026 | SEC 8-K |
| Sep 14, 2026 | Sionna Therapeutics, Inc. | Jennifer Fitzpatrick | Chief Legal OfficerCLO | Appointed | Sep 16, 2026 | SEC 8-K |
| Sep 11, 2026 | Amrize Ltd | Mario Gross | President, Building EnvelopePresident | Appointed | Sep 11, 2026 | SEC 8-K |
| Sep 11, 2026 | Apimeds Pharmaceuticals US, Inc. | Sungjoon Chae | member of the Boardmember of the Board | Appointed | Sep 10, 2026 | SEC 8-K |
| Sep 11, 2026 | BioRestorative Therapies, Inc. | Silva | Vice President of Research and DevelopmentVice President of Research and Development | Departed | Sep 4, 2026 | SEC 8-K |
| Sep 11, 2026 | Bubblr Inc. | David A. Chetwood | Chief Financial Officer (principal financial officer and principal accounting officer), Secretary, and directorCFO | Departed | Sep 10, 2026 | SEC 8-K |
| Sep 11, 2026 | Business First Bancshares, Inc. | Philip Jordan | Executive Vice President and Chief Banking OfficerExecutive Vice President and Chief Banking Officer | Departed | Sep 9, 2026 | SEC 8-K |
| Sep 11, 2026 | CELESTICA INC | Mandeep Chawla | Group President, Global MarketsPresident | Appointed | Oct 1, 2026 | SEC 8-K |
| Sep 11, 2026 | CELESTICA INC | Todd Ankenmann | Chief Financial OfficerCFO | Appointed | Oct 1, 2026 | SEC 8-K |
| Sep 11, 2026 | Citi Trends Inc | Heather Plutino | Executive Vice President, Chief Financial Officer and Chief Accounting OfficerCFO | Departed | n/a | SEC 8-K |
| Sep 11, 2026 | COTY INC. | Laurent Mercier | Chief Financial OfficerCFO | Departed | Sep 1, 2026 | SEC 8-K |
| Sep 11, 2026 | DAKTRONICS INC /SD/ | Bradley T. Wiemann | Executive Vice President – Advisor to the CEOCEO | Departed | Sep 5, 2026 | SEC 8-K |
| Sep 11, 2026 | EQV Ventures Acquisition Corp. II | Bryan Summers | DirectorDirector | Departed | Sep 4, 2026 | SEC 8-K |
| Sep 11, 2026 | EQV Ventures Acquisition Corp. II | Derek Rush | member of the Nominating Committeemember of the Nominating Committee | Appointed | Sep 11, 2026 | SEC 8-K |
- Rainmaker Worldwide Inc.Appointed
Michael O’Connor CEO
Filed Sep 14, 2026Effective May 1, 2026SEC 8-K
- Rainmaker Worldwide Inc.Appointed
Kelly White Interim Vice President, Finance
Filed Sep 14, 2026Effective May 1, 2026SEC 8-K
- RARE ELEMENT RESOURCES LTDAppointed
Josef Bilant COO
Filed Sep 14, 2026Effective Oct 5, 2026SEC 8-K
- Rimini Street, Inc.Departed
Steven Hershkowitz CRO
Filed Sep 14, 2026Effective Sep 8, 2026SEC 8-K
- Sionna Therapeutics, Inc.Departed
Caroline Stark Beer, M.B.A. Chief Business Officer
Filed Sep 14, 2026Effective Sep 15, 2026SEC 8-K
- Sionna Therapeutics, Inc.Appointed
Charlotte McKee CMO
Filed Sep 14, 2026Effective Sep 16, 2026SEC 8-K
- Sionna Therapeutics, Inc.Appointed
Elena Ridloff CFO
Filed Sep 14, 2026Effective Sep 16, 2026SEC 8-K
- Sionna Therapeutics, Inc.Appointed
Jennifer Fitzpatrick CLO
Filed Sep 14, 2026Effective Sep 16, 2026SEC 8-K
- Amrize LtdAppointed
Mario Gross President
Filed Sep 11, 2026Effective Sep 11, 2026SEC 8-K
- Apimeds Pharmaceuticals US, Inc.Appointed
Sungjoon Chae member of the Board
Filed Sep 11, 2026Effective Sep 10, 2026SEC 8-K
- BioRestorative Therapies, Inc.Departed
Silva Vice President of Research and Development
Filed Sep 11, 2026Effective Sep 4, 2026SEC 8-K
- Bubblr Inc.Departed
David A. Chetwood CFO
Filed Sep 11, 2026Effective Sep 10, 2026SEC 8-K
- Business First Bancshares, Inc.Departed
Philip Jordan Executive Vice President and Chief Banking Officer
Filed Sep 11, 2026Effective Sep 9, 2026SEC 8-K
- CELESTICA INCAppointed
Mandeep Chawla President
Filed Sep 11, 2026Effective Oct 1, 2026SEC 8-K
- CELESTICA INCAppointed
Todd Ankenmann CFO
Filed Sep 11, 2026Effective Oct 1, 2026SEC 8-K
- Citi Trends IncDeparted
Heather Plutino CFO
Filed Sep 11, 2026SEC 8-K
- COTY INC.Departed
Laurent Mercier CFO
Filed Sep 11, 2026Effective Sep 1, 2026SEC 8-K
- DAKTRONICS INC /SD/Departed
Bradley T. Wiemann CEO
Filed Sep 11, 2026Effective Sep 5, 2026SEC 8-K
Bryan Summers Director
Filed Sep 11, 2026Effective Sep 4, 2026SEC 8-K
- EQV Ventures Acquisition Corp. IIAppointed
Derek Rush member of the Nominating Committee
Filed Sep 11, 2026Effective Sep 11, 2026SEC 8-K