Current role
Jim Ziegler
Personal wealth note: Equibles reports source-backed professional activity and disclosed compensation; it does not estimate personal net worth.
About Jim Ziegler
Geron Corp reported in an 8-K filed October 14, 2025 that Jim Ziegler resigned as Executive Vice President, Chief Commercial Officer, effective October 15, 2025.
“Effective October 15, 2025, Andrew J. Grethlein, Ph.D., Executive Vice President, Chief Operating Officer and Jim Ziegler, Executive Vice President, Chief Commercial Officer will depart from the Company.”
Summary generated from SEC filings and earnings-call records held by Equibles.
Affiliation history
Recorded current and former roles; source labels appear when available.
-
Iovance Biotherapeutics, Inc. (IOVA)
Source not stated
Current -
Geron Corp (GERN)
Source not stated
Start not stated–2025-10-15
Company network
Recorded roles and call appearances connecting this person to public companies.
Geron Corp
GERN
Leadership on record at Iovance Biotherapeutics, Inc.
Other people whose current roles at this company are on record from its filings.
- Frederick G. Vogt, Ph.D. CEO
- Frederick Vogt CEO, General Counsel
- Corleen Roche CFO
- Jean-Marc Bellemin CFO
- Igor Bilinsky COO
- Igor Bilinsky, Ph.D. COO
- Matthew W. Rosinack Chief Accounting Officer
- Michael C. Swartzburg Chief Accounting Officer
- Athena Countouriotis Board Member
- Iain Dukes Board Member
Recent activity
Earnings-call and investor-event appearances, plus filed executive appointments or departures, newest first.