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.
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1,052 changes
| Filing date | Company | Person | Role | Change | Effective date | Source |
|---|---|---|---|---|---|---|
| Sep 14, 2026 | Rainmaker Worldwide Inc. | Ryan D. Moore | directordirector | Appointed | Sep 10, 2026 | SEC 8-K |
| Sep 14, 2026 | Rainmaker Worldwide Inc. | Michael A. Skinner | directordirector | Appointed | Sep 10, 2026 | SEC 8-K |
| Sep 14, 2026 | Rainmaker Worldwide Inc. | James Ross | DirectorDirector | Departed | Apr 22, 2026 | SEC 8-K |
| 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 15, 2026 | Aerkomm Inc. | Tayi Shen | member of the Boardmember of the Board | Appointed | Sep 14, 2026 | SEC 8-K |
| Sep 15, 2026 | BAR HARBOR BANKSHARES | John M. Mercier | Executive Vice President and Chief Lending OfficerExecutive Vice President and Chief Lending Officer | Departed | Dec 31, 2026 | SEC 8-K |
| Sep 15, 2026 | BigBear.ai Holdings, Inc. | Kirk Konert | Board of DirectorsBoard of Directors | Departed | Sep 15, 2026 | SEC 8-K |
| Sep 15, 2026 | BOXABL Inc. | Martin Costas | Chief Financial OfficerCFO | Departed | Sep 11, 2026 | SEC 8-K |
| Sep 15, 2026 | BOXABL Inc. | Larry King | Chief Financial OfficerCFO | Appointed | Sep 14, 2026 | SEC 8-K |
| Sep 15, 2026 | BOXABL Inc. | Heather Clayton | Chief Accounting OfficerChief Accounting Officer | Appointed | Sep 28, 2026 | SEC 8-K |
| Sep 15, 2026 | CABOT CORP | Steven J. Delahunt | Chief Financial OfficerCFO | Appointed | Oct 1, 2026 | SEC 8-K |
| Sep 15, 2026 | CABOT CORP | Erica McLaughlin | President and Chief Executive OfficerCEO | Appointed | Oct 1, 2026 | SEC 8-K |
| Sep 15, 2026 | Claritev Corp | Ben Letham | Class I directorClass I director | Appointed | Sep 14, 2026 | SEC 8-K |
- Rainmaker Worldwide Inc.Appointed
Ryan D. Moore director
Filed Sep 14, 2026Effective Sep 10, 2026SEC 8-K
- Rainmaker Worldwide Inc.Appointed
Michael A. Skinner director
Filed Sep 14, 2026Effective Sep 10, 2026SEC 8-K
- Rainmaker Worldwide Inc.Departed
James Ross Director
Filed Sep 14, 2026Effective Apr 22, 2026SEC 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
- Aerkomm Inc.Appointed
Tayi Shen member of the Board
Filed Sep 15, 2026Effective Sep 14, 2026SEC 8-K
- BAR HARBOR BANKSHARESDeparted
John M. Mercier Executive Vice President and Chief Lending Officer
Filed Sep 15, 2026Effective Dec 31, 2026SEC 8-K
- BigBear.ai Holdings, Inc.Departed
Kirk Konert Board of Directors
Filed Sep 15, 2026Effective Sep 15, 2026SEC 8-K
- BOXABL Inc.Departed
Martin Costas CFO
Filed Sep 15, 2026Effective Sep 11, 2026SEC 8-K
- BOXABL Inc.Appointed
Larry King CFO
Filed Sep 15, 2026Effective Sep 14, 2026SEC 8-K
- BOXABL Inc.Appointed
Heather Clayton Chief Accounting Officer
Filed Sep 15, 2026Effective Sep 28, 2026SEC 8-K
- CABOT CORPAppointed
Steven J. Delahunt CFO
Filed Sep 15, 2026Effective Oct 1, 2026SEC 8-K
- CABOT CORPAppointed
Erica McLaughlin CEO
Filed Sep 15, 2026Effective Oct 1, 2026SEC 8-K
- Claritev CorpAppointed
Ben Letham Class I director
Filed Sep 15, 2026Effective Sep 14, 2026SEC 8-K