GRETHLEIN ANDREW J

PrivateCIK: 1270921

Location

SOUTH SAN FRANCISCO, CA

SPIEGEL ROBERT J.

→GERON CORP

Apr 1, 2026·Apr 1, 2026

1 txn

ROBERTSON MICHELLE

→GERON CORP

Feb 19, 2026·Feb 19, 2026

4 txn

SPIEGEL ROBERT J.

→GERON CORP

Jan 5, 2026·Jan 5, 2026

1 txn

ZIEGLER JAMES

144

→GERON CORP

Dec 15, 2025·Dec 15, 2025

SPIEGEL ROBERT J.

→GERON CORP

Oct 1, 2025·Oct 1, 2025

1 txn

SEMERJIAN HAROUT

→GERON CORP

Aug 8, 2025·Aug 8, 2025

2 txn

SPIEGEL ROBERT J.

→GERON CORP

Jul 1, 2025·Jul 1, 2025

1 txn

SPIEGEL ROBERT J.

→GERON CORP

May 22, 2025·May 22, 2025

1 txn

O'FARRELL ELIZABETH G.

→GERON CORP

May 22, 2025·May 22, 2025

1 txn

MOLINEAUX SUSAN

→GERON CORP

May 22, 2025·May 22, 2025

1 txn

MCDONALD JOHN F

→GERON CORP

May 22, 2025·May 22, 2025

1 txn

LAWLIS V BRYAN

→GERON CORP

May 22, 2025·May 22, 2025

1 txn

LAWLIS V BRYAN

→GERON CORP

May 13, 2025·May 13, 2025

1 txn

SPIEGEL ROBERT J.

→GERON CORP

Apr 2, 2025·Apr 2, 2025

1 txn

SAMUELS SCOTT ALAN

→GERON CORP

Mar 3, 2025·Mar 3, 2025

1 txn

SCARLETT JOHN A

→GERON CORP

Mar 3, 2025·Mar 3, 2025

2 txn

ZIEGLER JAMES

→GERON CORP

Mar 3, 2025·Mar 3, 2025

1 txn

GRETHLEIN ANDREW J

→GERON CORP

Feb 20, 2025·Feb 20, 2025

2 txn

SCARLETT JOHN A

→GERON CORP

Feb 20, 2025·Feb 20, 2025

2 txn

SAMUELS SCOTT ALAN

→GERON CORP

Feb 20, 2025·Feb 20, 2025

2 txn

ZIEGLER JAMES

→GERON CORP

Feb 20, 2025·Feb 20, 2025

2 txn

ROBERTSON MICHELLE

→GERON CORP

Feb 20, 2025·Feb 20, 2025

2 txn

SPIEGEL ROBERT J.

→GERON CORP

Jan 2, 2025·Jan 2, 2025

1 txn

SPIEGEL ROBERT J.

→GERON CORP

Oct 1, 2024·Oct 1, 2024

1 txn

ZIEGLER JAMES

→GERON CORP

Sep 9, 2024·Sep 9, 2024

1 txn

Page 1 of 6 · 147 total

Filer	Form	Target	Filed	Activity
SPIEGEL ROBERT J.CIK · 1492256	4 Trade	GERON CORPCIK · 886744	Apr 1, 2026 Apr 1, 2026	1txn
ROBERTSON MICHELLECIK · 1755098	4 Trade	GERON CORPCIK · 886744	Feb 19, 2026 Feb 19, 2026	4txn
SPIEGEL ROBERT J.CIK · 1492256	4 Trade	GERON CORPCIK · 886744	Jan 5, 2026 Jan 5, 2026	1txn
ZIEGLER JAMESCIK · 2035113	144 Sale	GERON CORPCIK · 886744	Dec 15, 2025 Dec 15, 2025	—
SPIEGEL ROBERT J.CIK · 1492256	4 Trade	GERON CORPCIK · 886744	Oct 1, 2025 Oct 1, 2025	1txn
SEMERJIAN HAROUTCIK · 1809747	4 Trade	GERON CORPCIK · 886744	Aug 8, 2025 Aug 8, 2025	2txn
SPIEGEL ROBERT J.CIK · 1492256	4 Trade	GERON CORPCIK · 886744	Jul 1, 2025 Jul 1, 2025	1txn
SPIEGEL ROBERT J.CIK · 1492256	4 Trade	GERON CORPCIK · 886744	May 22, 2025 May 22, 2025	1txn
O'FARRELL ELIZABETH G.CIK · 1744662	4 Trade	GERON CORPCIK · 886744	May 22, 2025 May 22, 2025	1txn
MOLINEAUX SUSANCIK · 1553389	4 Trade	GERON CORPCIK · 886744	May 22, 2025 May 22, 2025	1txn
MCDONALD JOHN FCIK · 1944633	4 Trade	GERON CORPCIK · 886744	May 22, 2025 May 22, 2025	1txn
LAWLIS V BRYANCIK · 1247681	4 Trade	GERON CORPCIK · 886744	May 22, 2025 May 22, 2025	1txn
LAWLIS V BRYANCIK · 1247681	4 Trade	GERON CORPCIK · 886744	May 13, 2025 May 13, 2025	1txn
SPIEGEL ROBERT J.CIK · 1492256	4 Trade	GERON CORPCIK · 886744	Apr 2, 2025 Apr 2, 2025	1txn
SAMUELS SCOTT ALANCIK · 1987259	4 Trade	GERON CORPCIK · 886744	Mar 3, 2025 Mar 3, 2025	1txn
SCARLETT JOHN ACIK · 1270928	4 Trade	GERON CORPCIK · 886744	Mar 3, 2025 Mar 3, 2025	2txn
ZIEGLER JAMESCIK · 2035113	4 Trade	GERON CORPCIK · 886744	Mar 3, 2025 Mar 3, 2025	1txn
GRETHLEIN ANDREW JCIK · 1270921	4 Trade	GERON CORPCIK · 886744	Feb 20, 2025 Feb 20, 2025	2txn
SCARLETT JOHN ACIK · 1270928	4 Trade	GERON CORPCIK · 886744	Feb 20, 2025 Feb 20, 2025	2txn
SAMUELS SCOTT ALANCIK · 1987259	4 Trade	GERON CORPCIK · 886744	Feb 20, 2025 Feb 20, 2025	2txn
ZIEGLER JAMESCIK · 2035113	4 Trade	GERON CORPCIK · 886744	Feb 20, 2025 Feb 20, 2025	2txn
ROBERTSON MICHELLECIK · 1755098	4 Trade	GERON CORPCIK · 886744	Feb 20, 2025 Feb 20, 2025	2txn
SPIEGEL ROBERT J.CIK · 1492256	4 Trade	GERON CORPCIK · 886744	Jan 2, 2025 Jan 2, 2025	1txn
SPIEGEL ROBERT J.CIK · 1492256	4 Trade	GERON CORPCIK · 886744	Oct 1, 2024 Oct 1, 2024	1txn
ZIEGLER JAMESCIK · 2035113	4 Trade	GERON CORPCIK · 886744	Sep 9, 2024 Sep 9, 2024	1txn

Page 1 of 6 · 147 total