Company Insider Tape

Geron Corporation insider transactions

Executive and director filing history, acquisition and disposal balance, executive concentration, cadence, and stored market context.

Symbol GERN Latest filing 30 Jun 2026

Company Read

Acquisition-led

GERN has 6 stored insider filings. Acquisitions account for 100.0% of classified filings and disposals account for 0.0%. The largest stored filing is $7.8K from SPIEGEL, ROBERT J..

Latest filing 30 Jun 2026most recent stored row
Largest filing $7.8Kreported transaction value
Total filings 6stored transaction rows
Acquisition value $7.8K6 acquisitions
Disposal value $00 disposals
Net value $7.8Kacquisitions minus disposals

Filing cadence

Last 12 active months
May 2026 5
Jun 2026 1

Acquisitions 100.0% · Disposals 0.0%

May 2026 $0
Jun 2026 $7.8K

Executive concentration

By filing count
SPIEGEL, ROBERT J. Director · 2 filings
BIR, DAWN CARTER Director · 1 filings
MCDONALD, JOHN F Director · 1 filings
MOLINEAUX, SUSAN Director · 1 filings
O'FARRELL, ELIZABETH G. Director · 1 filings

Market Context

GERN weekly market snapshot

Week 31 Jul 2026
Latest close 1.29 USDstored weekly close
1-week move -9.2%latest weekly bar
13-week move -5.1%medium-term context
Relative Strength -14.8Sharemaestro indicator
Fair value gap -45.1%price vs fair value
Trend signal 0smoothed trend state

Transaction History

Latest insider filings for GERN

Showing 1-6 of 6
Date 30 Jun 2026
Insider SPIEGEL, ROBERT J.Director
Side Acquisition
Shares 6103
Price 1.28
Value 7812
Security Common Stock
Date 20 May 2026
Insider BIR, DAWN CARTERDirector
Side Acquisition
Shares 220000
Price 0.00
Value 0
Security Stock Option (right to buy)
Date 20 May 2026
Insider MCDONALD, JOHN FDirector
Side Acquisition
Shares 220000
Price 0.00
Value 0
Security Stock Option (right to buy)
Date 20 May 2026
Insider MOLINEAUX, SUSANDirector
Side Acquisition
Shares 220000
Price 0.00
Value 0
Security Stock Option (right to buy)
Date 20 May 2026
Insider O'FARRELL, ELIZABETH G.Director
Side Acquisition
Shares 220000
Price 0.00
Value 0
Security Stock Option (right to buy)
Date 20 May 2026
Insider SPIEGEL, ROBERT J.Director
Side Acquisition
Shares 220000
Price 0.00
Value 0
Security Stock Option (right to buy)