---
title: "GERON CORP — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9fa2096f-9aaa-5a97-a111-ae80ecee1e8a
json: https://whiteintel.dev/api/public/dossier/9fa2096f-9aaa-5a97-a111-ae80ecee1e8a
identifier: sec:0000886744
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# GERON CORP

**Type:** Company  
**Jurisdiction:** US  
**Identifier:** `sec:0000886744`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/9fa2096f-9aaa-5a97-a111-ae80ecee1e8a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9fa2096f-9aaa-5a97-a111-ae80ecee1e8a  

## Ownership & control

### Owners / controllers

- **Samuels Scott Alan** (officer) — https://whiteintel.dev/entity/44c31d38-5c64-55ee-a2d0-36f39ad5d4e9
- **SCARLETT JOHN A** (officer) — https://whiteintel.dev/entity/e49627f0-c366-5944-b647-72bda4014426
- **Ziegler James** (officer) — https://whiteintel.dev/entity/2cbc9f8f-5b7e-5f68-988d-6a794f6286aa
- **Ziegler James** (officer) — https://whiteintel.dev/entity/2cbc9f8f-5b7e-5f68-988d-6a794f6286aa
- **ROBERTSON MICHELLE** (officer) — https://whiteintel.dev/entity/32c37bb4-6b5a-589c-a5d9-84ba13536e2e
- **GRETHLEIN ANDREW J** (officer) — https://whiteintel.dev/entity/df1ba629-56d9-5027-bd2c-8c8ba673e018
- **SCARLETT JOHN A** (officer) — https://whiteintel.dev/entity/e49627f0-c366-5944-b647-72bda4014426
- **Samuels Scott Alan** (officer) — https://whiteintel.dev/entity/44c31d38-5c64-55ee-a2d0-36f39ad5d4e9
- **Spiegel Robert J.** (director) — https://whiteintel.dev/entity/da187604-4e25-5116-a162-b9ab87aec42e
- **OKARMA THOMAS** (officer) — https://whiteintel.dev/entity/d1f0b344-5057-5dd0-a94b-bed8cf418272
- **EARP DAVID** (officer) — https://whiteintel.dev/entity/be366c93-6ac7-5315-bd43-e4bd11aae8c5
- **GREENWOOD DAVID** (officer) — https://whiteintel.dev/entity/b38fe7e6-8aac-5083-b5d6-1c780e14454f
- **OKARMA THOMAS** (director) — https://whiteintel.dev/entity/d1f0b344-5057-5dd0-a94b-bed8cf418272
- **LEBKOWSKI JANE** (officer) — https://whiteintel.dev/entity/c0aee169-0377-5680-af71-52c0644e7358
- **HARLEY CALVIN** (officer) — https://whiteintel.dev/entity/7c86a086-6571-575e-a1d7-15a2fc8064b0
- **BEHRS MELISSA KELLY** (officer) — https://whiteintel.dev/entity/34601ebc-572f-56fb-aade-58dd962ffa42
- **BIR DAWN CARTER** (director) — https://whiteintel.dev/entity/271c5462-c820-525f-b81b-e769efc1763a
- **Spiegel Robert J.** (director) — https://whiteintel.dev/entity/da187604-4e25-5116-a162-b9ab87aec42e
- **Williams Timothy** (officer) — https://whiteintel.dev/entity/a5e204d9-5d9c-5f23-a760-2211deebf054
- **MCDONALD JOHN F** (director) — https://whiteintel.dev/entity/f30e8471-7d91-5708-89a3-678f5986b3c6
- **MOLINEAUX SUSAN** (director) — https://whiteintel.dev/entity/62983fb4-629f-5398-9164-651f222d16d7
- **O'FARRELL ELIZABETH G.** (director) — https://whiteintel.dev/entity/d7d8804c-9b32-53cc-b4d0-afdf3961eb02
- **Chinoporos Constantine** (director) — https://whiteintel.dev/entity/748c9a3e-9e28-5ac4-b06f-6c9d5bc4ac69
- **ANDREWS PATRICIA S** (director) — https://whiteintel.dev/entity/d88ba343-fd02-57d5-860b-971eb4d0df93
- **ROBERTSON MICHELLE** (officer) — https://whiteintel.dev/entity/32c37bb4-6b5a-589c-a5d9-84ba13536e2e
- **EID JOSEPH** (officer) — https://whiteintel.dev/entity/a0b579f9-52ec-5f26-80dd-c0e9ab5eb09e
- **ELNAWAWI AHMED** (officer) — https://whiteintel.dev/entity/5b029a43-fabf-58c7-b19d-914a627f0c90
- **SEMERJIAN HAROUT** (officer) — https://whiteintel.dev/entity/d5230034-9abf-5ca7-8fb9-018f6ce79ae1
- **SEMERJIAN HAROUT** (director) — https://whiteintel.dev/entity/d5230034-9abf-5ca7-8fb9-018f6ce79ae1
- **BIR DAWN CARTER** (officer) — https://whiteintel.dev/entity/271c5462-c820-525f-b81b-e769efc1763a
- **LAWLIS V BRYAN** (director) — https://whiteintel.dev/entity/7e56ca30-3593-5f00-8edf-160433da0e11
- **Aggarwal Gaurav** (director) — https://whiteintel.dev/entity/922745c4-4496-55c7-aa7a-e04811e8acd4
- **Ziegler James** (officer) — https://whiteintel.dev/entity/2cbc9f8f-5b7e-5f68-988d-6a794f6286aa
- **SCARLETT JOHN A** (officer) — https://whiteintel.dev/entity/e49627f0-c366-5944-b647-72bda4014426
- **GRETHLEIN ANDREW J** (officer) — https://whiteintel.dev/entity/df1ba629-56d9-5027-bd2c-8c8ba673e018
- **Samuels Scott Alan** (officer) — https://whiteintel.dev/entity/44c31d38-5c64-55ee-a2d0-36f39ad5d4e9
- **SCARLETT JOHN A** (director) — https://whiteintel.dev/entity/e49627f0-c366-5944-b647-72bda4014426
- **KAPUR ANIL** (officer) — https://whiteintel.dev/entity/93f4832e-0a7a-54d1-82f2-881bb039810c
- **FELLER FAYE** (officer) — https://whiteintel.dev/entity/6dbd21ae-59dd-552d-91d1-158afb6d68ef
- **BLOOM OLIVIA KYUSUK** (officer) — https://whiteintel.dev/entity/3c462cfc-331f-5a2f-86e3-8c1573af3e83
- **EASTHAM KARIN** (director) — https://whiteintel.dev/entity/eb60ff1c-578f-5ce3-a179-32a44ffd68ff
- **Rizo Aleksandra** (officer) — https://whiteintel.dev/entity/e2c119dc-bf2c-56cc-828e-d47856fc6e1f
- **ROSENFIELD STEPHEN** (officer) — https://whiteintel.dev/entity/07d875d5-7f94-515d-9710-9d2e1fd842d3
- **BRADBURY DANIEL** (director) — https://whiteintel.dev/entity/76255fa1-3987-5ccc-9f68-4303aaf52297
- **Huh Hoyoung** (director) — https://whiteintel.dev/entity/3e87c78b-15f6-5ed5-8241-724878024eea
- **HOFSTAETTER THOMAS** (director) — https://whiteintel.dev/entity/cbb7a8ba-0980-57e3-b9be-8aaafaf550d7
- **Parker Craig C** (officer) — https://whiteintel.dev/entity/32412263-43a1-5e6d-87f5-0ae49ce5d1f5
- **KILEY THOMAS** (director) — https://whiteintel.dev/entity/f04a0fb8-5fb4-5f1b-97eb-88d0749a35dc
- **FRITZKY EDWARD V** (director) — https://whiteintel.dev/entity/3c06c8ca-c5e8-512c-b2a8-3141647b0b2f
- **Kelsey Stephen Michael** (officer) — https://whiteintel.dev/entity/f9a60fc3-6f9c-5b4b-afdd-cfa55b15c7e3
- **BEHRS MELISSA KELLY** (director) — https://whiteintel.dev/entity/34601ebc-572f-56fb-aade-58dd962ffa42
- **COOPER GRAHAM K** (officer) — https://whiteintel.dev/entity/51d1442e-ffca-5782-b46f-d7e140f37cb3
- **GREENWOOD DAVID** (other) — https://whiteintel.dev/entity/b38fe7e6-8aac-5083-b5d6-1c780e14454f
- **LEBKOWSKI JANE** (other) — https://whiteintel.dev/entity/c0aee169-0377-5680-af71-52c0644e7358
- **SPINK KATHARINE E.** (other) — https://whiteintel.dev/entity/a0aab484-231b-5cd3-ba86-acc8d08755b3
- **NALLICHERI MELANIE I** (officer) — https://whiteintel.dev/entity/f69733e9-551a-5996-aeb9-38a4ff7578d5
- **HOMCY CHARLES J** (director) — https://whiteintel.dev/entity/8b988e58-a575-5702-8157-f73cfc25e780
- **BARKAS ALEXANDER E** (director) — https://whiteintel.dev/entity/7d749ecd-9624-51d4-8b3f-b745ae6f7ba3
- **SPINK KATHARINE E.** (officer) — https://whiteintel.dev/entity/a0aab484-231b-5cd3-ba86-acc8d08755b3
- **GREENWOOD DAVID** (director) — https://whiteintel.dev/entity/b38fe7e6-8aac-5083-b5d6-1c780e14454f
- **Huh Hoyoung** (officer) — https://whiteintel.dev/entity/3e87c78b-15f6-5ed5-8241-724878024eea
- **ZENNER PATRICK J** (director) — https://whiteintel.dev/entity/beadea9a-8709-5597-8e7b-3a52bd783afa
- **BENEDETTI FABIO M** (officer) — https://whiteintel.dev/entity/5a72793e-e319-50ec-bd3c-750c77b20f6c
- **WALKER JOHN PETER** (director) — https://whiteintel.dev/entity/c9690e2d-51c5-5a16-9d1c-b89ff21caf6a
- **Colowick Alan** (officer) — https://whiteintel.dev/entity/f33da5bc-db9f-5a2e-9641-27f2d8bd7314

### Holdings / subsidiaries

- **ASTERIAS BIOTHERAPEUTICS, INC.** (tenpercentowner) — https://whiteintel.dev/entity/e8d51f09-d36b-5efa-9ece-0fe78dbcc784

### UBO chain (walk to the ultimate owner)

1. **Samuels Scott Alan** — officer → *GERON CORP*
1. **SCARLETT JOHN A** — officer → *GERON CORP*
1. **Ziegler James** — officer → *GERON CORP*
1. **Ziegler James** — officer → *GERON CORP*
1. **ROBERTSON MICHELLE** — officer → *GERON CORP*
1. **GRETHLEIN ANDREW J** — officer → *GERON CORP*
1. **SCARLETT JOHN A** — officer → *GERON CORP*
1. **Samuels Scott Alan** — officer → *GERON CORP*
1. **Spiegel Robert J.** — director → *GERON CORP*
1. **OKARMA THOMAS** — officer → *GERON CORP*
1. **EARP DAVID** — officer → *GERON CORP*
1. **GREENWOOD DAVID** — officer → *GERON CORP*
1. **OKARMA THOMAS** — director → *GERON CORP*
1. **LEBKOWSKI JANE** — officer → *GERON CORP*
1. **HARLEY CALVIN** — officer → *GERON CORP*
1. **BEHRS MELISSA KELLY** — officer → *GERON CORP*
1. **BIR DAWN CARTER** — director → *GERON CORP*
1. **Spiegel Robert J.** — director → *GERON CORP*
1. **Williams Timothy** — officer → *GERON CORP*
1. **MCDONALD JOHN F** — director → *GERON CORP*
1. **MOLINEAUX SUSAN** — director → *GERON CORP*
1. **O'FARRELL ELIZABETH G.** — director → *GERON CORP*
1. **Chinoporos Constantine** — director → *GERON CORP*
1. **ANDREWS PATRICIA S** — director → *GERON CORP*
1. **ROBERTSON MICHELLE** — officer → *GERON CORP*
1. **EID JOSEPH** — officer → *GERON CORP*
1. **ELNAWAWI AHMED** — officer → *GERON CORP*
1. **SEMERJIAN HAROUT** — officer → *GERON CORP*
1. **SEMERJIAN HAROUT** — director → *GERON CORP*
1. **BIR DAWN CARTER** — officer → *GERON CORP*
1. **LAWLIS V BRYAN** — director → *GERON CORP*
1. **Aggarwal Gaurav** — director → *GERON CORP*
1. **Ziegler James** — officer → *GERON CORP*
1. **SCARLETT JOHN A** — officer → *GERON CORP*
1. **GRETHLEIN ANDREW J** — officer → *GERON CORP*
1. **Samuels Scott Alan** — officer → *GERON CORP*
1. **SCARLETT JOHN A** — director → *GERON CORP*
1. **KAPUR ANIL** — officer → *GERON CORP*
1. **FELLER FAYE** — officer → *GERON CORP*
1. **BLOOM OLIVIA KYUSUK** — officer → *GERON CORP*
1. **EASTHAM KARIN** — director → *GERON CORP*
1. **Rizo Aleksandra** — officer → *GERON CORP*
1. **ROSENFIELD STEPHEN** — officer → *GERON CORP*
1. **BRADBURY DANIEL** — director → *GERON CORP*
1. **Huh Hoyoung** — director → *GERON CORP*
1. **HOFSTAETTER THOMAS** — director → *GERON CORP*
1. **Parker Craig C** — officer → *GERON CORP*
1. **KILEY THOMAS** — director → *GERON CORP*
1. **FRITZKY EDWARD V** — director → *GERON CORP*
1. **Kelsey Stephen Michael** — officer → *GERON CORP*
1. **BEHRS MELISSA KELLY** — director → *GERON CORP*
1. **COOPER GRAHAM K** — officer → *GERON CORP*
1. **GREENWOOD DAVID** — other → *GERON CORP*
1. **LEBKOWSKI JANE** — other → *GERON CORP*
1. **SPINK KATHARINE E.** — other → *GERON CORP*
1. **NALLICHERI MELANIE I** — officer → *GERON CORP*
1. **HOMCY CHARLES J** — director → *GERON CORP*
1. **BARKAS ALEXANDER E** — director → *GERON CORP*
1. **SPINK KATHARINE E.** — officer → *GERON CORP*
1. **GREENWOOD DAVID** — director → *GERON CORP*
1. **Huh Hoyoung** — officer → *GERON CORP*
1. **ZENNER PATRICK J** — director → *GERON CORP*
1. **BENEDETTI FABIO M** — officer → *GERON CORP*
1. **WALKER JOHN PETER** — director → *GERON CORP*
1. **Colowick Alan** — officer → *GERON CORP*

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **GERON CORP**. Human view: https://whiteintel.dev/entity/9fa2096f-9aaa-5a97-a111-ae80ecee1e8a · Structured JSON: https://whiteintel.dev/api/public/dossier/9fa2096f-9aaa-5a97-a111-ae80ecee1e8a._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._