COO changes
Chief operating officer appointments and departures from SEC 8-K filings.
Updated Nov 6, 2026
COO changes, last 12 months
139
Appointments
83
Departures
16
Other roles
Get new COO changes by email
Appointments and departures per month
December 2025 to November 2026
| Month | Appointments | Departures |
|---|---|---|
| December 2025 | 0 | 0 |
| January 2026 | 0 | 0 |
| February 2026 | 0 | 0 |
| March 2026 | 0 | 0 |
| April 2026 | 0 | 0 |
| May 2026 | 0 | 0 |
| June 2026 | 0 | 0 |
| July 2026 | 0 | 0 |
| August 2026 | 25 | 2 |
| September 2026 | 33 | 7 |
| October 2026 | 16 | 6 |
| November 2026 | 9 | 1 |
Sectors with the most COO changes
Last 12 months
| Sector | COO changes |
|---|---|
| Banking and finance | 8 |
| Biotechnology | 4 |
| Restaurants | 3 |
| Electronics | 2 |
| Energy | 2 |
| Software | 2 |
| Aerospace | 1 |
| Industrial components | 1 |
| Insurance | 1 |
| Professional services | 1 |
Filters
139 changes
| Filing date | Company | Person | Change | Effective date | Source |
|---|---|---|---|---|---|
| Aug 4, 2026 | Charlie's Holdings, Inc. | Ryan Stump | Departed | Sep 4, 2026 | SEC 8-K |
| Aug 4, 2026 | Eton Pharmaceuticals, Inc. | Danka Radosavljevic | Appointed | Jul 31, 2026 | SEC 8-K |
| Aug 5, 2026 | COMPASS MINERALS INTERNATIONAL INC | Brandon Risner | Appointed | Aug 3, 2026 | SEC 8-K |
| Aug 5, 2026 | Ivanhoe Electric Inc. | Michelle Lammers | Appointed | Sep 1, 2026 | SEC 8-K |
| Aug 5, 2026 | ZILLOW GROUP, INC. | Jeremy Hofmann | Appointed | Aug 4, 2026 | SEC 8-K |
| Aug 6, 2026 | ARROW ELECTRONICS, INC. | Deidra (Dee) C. Merriwether | Appointed | Sep 8, 2026 | SEC 8-K |
| Aug 6, 2026 | HYSTER-YALE, INC. | Anthony J. Salgado | Appointed | Aug 1, 2026 | SEC 8-K |
| Aug 6, 2026 | UNIVERSAL ELECTRONICS INC | Joseph (Lee) Haughawout | Appointed | Aug 6, 2026 | SEC 8-K |
| Aug 7, 2026 | Gyrodyne, LLC | Peter Pitsiokos | Departed | Oct 2, 2026 | SEC 8-K |
| Aug 7, 2026 | LIGHTBRIDGE Corp | Andrey Mushakov | Appointed | Aug 6, 2026 | SEC 8-K |
| Aug 10, 2026 | Celsius Holdings, Inc. | Eric Hanson | Departed | Aug 10, 2026 | SEC 8-K |
| Aug 11, 2026 | Aura Biosciences, Inc. | Susan Abu-Absi, Ph.D. | Appointed | Aug 10, 2026 | SEC 8-K |
| Aug 12, 2026 | Rimini Street, Inc. | Keith C. Costello | Appointed | Aug 17, 2026 | SEC 8-K |
| Aug 13, 2026 | Addus HomeCare Corp | Heather Dixon | Departed | Aug 7, 2026 | SEC 8-K |
| Aug 13, 2026 | Addus HomeCare Corp | W. Bradley Bickham | Appointed | Aug 7, 2026 | SEC 8-K |
| Aug 14, 2026 | Cable One, Inc. | Heather McCallion | Appointed | Aug 24, 2026 | SEC 8-K |
| Aug 14, 2026 | FEDERAL AGRICULTURAL MORTGAGE CORP | Robert J. Maines | Appointed | Aug 17, 2026 | SEC 8-K |
| Aug 14, 2026 | NewAmsterdam Pharma Co N.V. | Douglas Kling | Departed | Aug 14, 2026 | SEC 8-K |
| Aug 14, 2026 | SkinHealth Systems Inc. | Sheri Lewis | Departed | Aug 28, 2026 | SEC 8-K |
| Aug 17, 2026 | Valion Bio, Inc. | Lisa Wolf | Appointed | Aug 16, 2026 | SEC 8-K |
Sort:Filing date ↑Company
- Charlie's Holdings, Inc.Departed
Ryan Stump COO
Filed Aug 4, 2026Effective Sep 4, 2026SEC 8-K
- Eton Pharmaceuticals, Inc.Appointed
Danka Radosavljevic COO
Filed Aug 4, 2026Effective Jul 31, 2026SEC 8-K
- COMPASS MINERALS INTERNATIONAL INCAppointed
Brandon Risner COO
Filed Aug 5, 2026Effective Aug 3, 2026SEC 8-K
- Ivanhoe Electric Inc.Appointed
Michelle Lammers COO
Filed Aug 5, 2026Effective Sep 1, 2026SEC 8-K
- ZILLOW GROUP, INC.Appointed
Jeremy Hofmann COO
Filed Aug 5, 2026Effective Aug 4, 2026SEC 8-K
- ARROW ELECTRONICS, INC.Appointed
Deidra (Dee) C. Merriwether COO
Filed Aug 6, 2026Effective Sep 8, 2026SEC 8-K
- HYSTER-YALE, INC.Appointed
Anthony J. Salgado COO
Filed Aug 6, 2026Effective Aug 1, 2026SEC 8-K
- UNIVERSAL ELECTRONICS INCAppointed
Joseph (Lee) Haughawout COO
Filed Aug 6, 2026Effective Aug 6, 2026SEC 8-K
- Gyrodyne, LLCDeparted
Peter Pitsiokos COO
Filed Aug 7, 2026Effective Oct 2, 2026SEC 8-K
- LIGHTBRIDGE CorpAppointed
Andrey Mushakov COO
Filed Aug 7, 2026Effective Aug 6, 2026SEC 8-K
- Celsius Holdings, Inc.Departed
Eric Hanson COO
Filed Aug 10, 2026Effective Aug 10, 2026SEC 8-K
- Aura Biosciences, Inc.Appointed
Susan Abu-Absi, Ph.D. COO
Filed Aug 11, 2026Effective Aug 10, 2026SEC 8-K
- Rimini Street, Inc.Appointed
Keith C. Costello COO
Filed Aug 12, 2026Effective Aug 17, 2026SEC 8-K
- Addus HomeCare CorpDeparted
Heather Dixon COO
Filed Aug 13, 2026Effective Aug 7, 2026SEC 8-K
- Addus HomeCare CorpAppointed
W. Bradley Bickham COO
Filed Aug 13, 2026Effective Aug 7, 2026SEC 8-K
- Cable One, Inc.Appointed
Heather McCallion COO
Filed Aug 14, 2026Effective Aug 24, 2026SEC 8-K
- FEDERAL AGRICULTURAL MORTGAGE CORPAppointed
Robert J. Maines COO
Filed Aug 14, 2026Effective Aug 17, 2026SEC 8-K
- NewAmsterdam Pharma Co N.V.Departed
Douglas Kling COO
Filed Aug 14, 2026Effective Aug 14, 2026SEC 8-K
- SkinHealth Systems Inc.Departed
Sheri Lewis COO
Filed Aug 14, 2026Effective Aug 28, 2026SEC 8-K
- Valion Bio, Inc.Appointed
Lisa Wolf COO
Filed Aug 17, 2026Effective Aug 16, 2026SEC 8-K