Spiegel Robert J. has filed 27 insider transactions across 3 companies since December 2022.
Most recent transaction: a grant/award of 5243 shares of GERON CORP ($GERN) on March 31, 2026.
Activity breakdown: 2 open-market purchases and 0 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 31, 2026 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 5243 | $1.49 | 199,707.0000 | 667,101,756 | 2.70% | 0.00% |
| Dec. 31, 2025 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 5918 | $1.32 | 194,464.0000 | 667,101,756 | 3.14% | 0.00% |
| Oct. 1, 2025 | RenovoRx, Inc. | $RNXT | Spiegel Robert J. | Director | A | Stock Options (right to buy) | 47640 | $0.00 | 47,640.0000 | 36,546,752 | 9999.99% | 0.13% |
| Sept. 30, 2025 | GERON CORP | $GERN | Spiegel Robert J. | Director | A | Common Stock | 5702 | $1.37 | 188,546.0000 | 646,033,247 | 3.12% | 0.00% |
| June 30, 2025 | GERON CORP | $GERN | Spiegel Robert J. | Director | A | Common Stock | 5540 | $1.41 | 182,844.0000 | 646,033,247 | 3.12% | 0.00% |
| May 21, 2025 | GERON CORP | $GERN | Spiegel Robert J. | Director | A | Stock Option (right to buy) | 180000 | $0.00 | 180,000.0000 | 646,033,247 | 9999.99% | 0.03% |
| June 28, 2024 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 1916 | $4.24 | 168,418.0000 | 570,645,405 | 1.15% | 0.00% |
| March 31, 2025 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 4913 | $1.59 | 177,304.0000 | 646,033,247 | 2.85% | 0.00% |
| Dec. 31, 2024 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 2206 | $3.54 | 172,391.0000 | 662,158,182 | 1.30% | 0.00% |
| Sept. 30, 2024 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 1767 | $4.54 | 170,185.0000 | 570,645,405 | 1.05% | 0.00% |
| March 29, 2024 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 2462 | $3.30 | 166,502.0000 | 570,645,405 | 1.50% | 0.00% |
| Dec. 31, 2024 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 2206 | $0.00 | 172,391.0000 | 662,158,182 | 1.26% | 0.00% |
| Oct. 1, 2024 | RenovoRx, Inc. | $RNXT | Spiegel Robert J. | Director | A | Stock Options (right to buy) | 25099 | $0.00 | 25,099.0000 | 0 | 9999.99% | 0.00% |
| Sept. 30, 2024 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 1767 | $0.00 | 170,185.0000 | 570,645,405 | 1.03% | 0.00% |
| June 28, 2024 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 1916 | $0.00 | 168,418.0000 | 570,645,405 | 1.12% | 0.00% |
| March 29, 2024 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Common Stock | 2462 | $0.00 | 166,502.0000 | 570,645,405 | 1.46% | 0.00% |
| May 9, 2024 | GERON CORP | $GERN | Spiegel Robert J. | Not found | A | Stock Option (right to buy) | 180000 | $0.00 | 180,000.0000 | 570,645,405 | 9999.99% | 0.03% |
| Jan. 26, 2024 | RenovoRx, Inc. | $RNXT | Spiegel Robert J. | Director | P | Common Stock | 40983 | $0.00 | 40,983.0000 | 0 | 9999.99% | 0.00% |
| Jan. 26, 2024 | RenovoRx, Inc. | $RNXT | Spiegel Robert J. | Director | P | Warrants | 40983 | $0.00 | 40,983.0000 | 0 | 9999.99% | 0.00% |
| Dec. 29, 2023 | GERON CORP | $GERN | Spiegel Robert J. | Director | A | Common Stock | 3406 | $0.00 | 164,040.0000 | 380,784,846 | 2.12% | 0.00% |
| Sept. 29, 2023 | GERON CORP | $GERN | Spiegel Robert J. | Director | A | Common Stock | 3390 | $0.00 | 160,634.0000 | 380,784,846 | 2.16% | 0.00% |
| June 30, 2023 | Bio Green Med Solution, Inc. | $BGMS | Spiegel Robert J. | Director | A | Stock Option (right to buy) | 42438 | $0.00 | 42,438.0000 | 0 | 9999.99% | 0.00% |
| June 30, 2023 | Bio Green Med Solution, Inc. | $BGMS | Spiegel Robert J. | Director | A | Common Stock | 21219 | $0.00 | 39,415.0000 | 0 | 116.61% | 0.00% |
| June 30, 2023 | GERON CORP | $GERN | Spiegel Robert J. | Director | A | Common Stock | 2239 | $0.00 | 157,244.0000 | 380,784,846 | 1.44% | 0.00% |
| May 31, 2023 | GERON CORP | $GERN | Spiegel Robert J. | Director | A | Stock Option (right to buy) | 125000 | $0.00 | 125,000.0000 | 380,784,846 | 9999.99% | 0.03% |
| March 31, 2023 | GERON CORP | $GERN | Spiegel Robert J. | Director | A | Common Stock | 3312 | $0.00 | 155,005.0000 | 380,784,846 | 2.18% | 0.00% |
| Dec. 30, 2022 | GERON CORP | $GERN | Spiegel Robert J. | Director | A | Common Stock | 2970 | $0.00 | 151,693.0000 | 0 | 2.00% | 0.00% |