Robert J. Spiegel

Sits on 3 boards. Last updated September 28, 2026

Time on boards

Boards served
3
Current seats
3
Board service
10 years
Director since
2023

10 years of board service in total across 3 boards, counting each seat separately. Longest: Geron Corporation, 3 years.

3 years ยท Since 2023
RenovoRx Inc. Director
3 years ยท Since 2023
3 years ยท Since 2023

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Date Company Transaction Shares Price Value
Jun 30, 2026 Geron Corporation Grant or award +6,103 $1.28 $7,812
Mar 31, 2026 Geron Corporation Grant or award +5,243 $1.49 $7,812
Dec 31, 2025 Geron Corporation Grant or award +5,918 $1.32 $7,812
Sep 30, 2025 Geron Corporation Grant or award +5,702 $1.37 $7,812
Jun 30, 2025 Geron Corporation Grant or award +5,540 $1.41 $7,811
Mar 31, 2025 Geron Corporation Grant or award +4,913 $1.59 $7,812
Dec 31, 2024 Geron Corporation Grant or award โˆ’2,206 โ€” โ€”
Sep 30, 2024 Geron Corporation Grant or award โˆ’1,767 โ€” โ€”
Jun 28, 2024 Geron Corporation Grant or award โˆ’1,916 โ€” โ€”
Mar 29, 2024 Geron Corporation Grant or award โˆ’2,462 โ€” โ€”
Jan 26, 2024 RenovoRx Inc. Open-market purchase +40,983 โ€” โ€”
Dec 29, 2023 Geron Corporation Grant or award +3,406 โ€” โ€”
Sep 29, 2023 Geron Corporation Grant or award +3,390 โ€” โ€”
Jun 30, 2023 Geron Corporation Grant or award +2,239 โ€” โ€”
Jun 30, 2023 Bio Green Med Solution Inc. Grant or award +21,219 โ€” โ€”

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