Spiegel Robert J.

Geron Corporation · Director

Spiegel Robert J. is listed in public filings as director. This Spiegel Robert J. insider trading page organizes Form 4 disclosures, reported purchases and sales, transaction dates, share amounts, related issuers, and historical insider activity so readers can review the person's public trading record in one place. Companies and tickers connected to this insider trading profile include Geron Corporation (GERN), and RenovoRx, Inc. (RNXT). Investors use Spiegel Robert J.'s insider trading disclosures to study buying and selling patterns, position changes, company-specific activity, and the source evidence behind each reported transaction.

Latest Actions

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Geron CorporationGERN$277k220k sharesGrant / ExerciseMay 20, 2026$277.2K220k shares$1.26--

Insider Trades History

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Geron CorporationGERN$298k199.7k sharesGrant / ExerciseMar 31, 2026$7.8K5.2k shares$1.49--
Geron CorporationGERN$257k194.5k sharesGrant / ExerciseDec 31, 2025$7.8K5.9k shares$1.32--
RenovoRx, Inc.RNXT$64k47.6k sharesGrant / ExerciseOct 1, 2025$63.8K47.6k shares$1.34--
Geron CorporationGERN$258k188.5k sharesGrant / ExerciseSep 30, 2025$7.8K5.7k shares$1.37--
Geron CorporationGERN$258k182.8k sharesGrant / ExerciseJun 30, 2025$7.8K5.5k shares$1.41--
Geron CorporationGERN$241k180k sharesGrant / ExerciseMay 21, 2025$241.2K180k shares$1.34--
Geron CorporationGERN$282k177.3k sharesGrant / ExerciseMar 31, 2025$7.8K4.9k shares$1.59--
Geron CorporationGERN--172.4k sharesGrant / ExerciseDec 31, 2024Disclosure amount unavailable2.2k shares----
Geron CorporationGERN$610k172.4k sharesGrant / ExerciseDec 31, 2024$7.8K2.2k shares$3.54--
RenovoRx, Inc.RNXT$26k25.1k sharesGrant / ExerciseOct 1, 2024$25.6K25.1k shares$1.02--
Geron CorporationGERN--170.2k sharesGrant / ExerciseSep 30, 2024Disclosure amount unavailable1.8k shares----
Geron CorporationGERN$773k170.2k sharesGrant / ExerciseSep 30, 2024$8.0K1.8k shares$4.54--
Geron CorporationGERN--168.4k sharesGrant / ExerciseJun 28, 2024Disclosure amount unavailable1.9k shares----
Geron CorporationGERN$714k168.4k sharesGrant / ExerciseJun 28, 2024$8.1K1.9k shares$4.24--