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Geron Corp (GERN)
NASDAQ: GERN · Real-Time Price · USD
Healthcare · Biotechnology
1.16+0.04 (+3.57%)
Insider Score
––Not scored
GERN Insider Score
Insiders here have filed 1 Form 4 in the last 90 days, but all of them are share awards, grants or other non-market transactions. Those are compensation, not a decision to buy, so they are not scored.
GERN Stock Insider Trading Activity
GERN stock’s insider trading shows no open-market insider trades by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Spiegel Robert J. Director | Award | 6,351 | $1.23 | $7.81K | 3.1% | 212,161 | Sep 30, 2026 | — | Form 4 |
| Spiegel Robert J. Director | Award | 6,103 | $1.28 | $7.81K | 3.1% | 205,810 | Jun 30, 2026 | — | Form 4 |
| Spiegel Robert J. Director | Award | 5,243 | $1.49 | $7.81K | 2.7% | 199,707 | Mar 31, 2026 | — | Form 4 |
| ROBERTSON MICHELLE CFO | Option exercise | 27,500 | — | — | New | 27,500 | Feb 18, 2026 | — | Form 4 |
| ROBERTSON MICHELLE CFO | Sell | 9,855 | $1.94 | $19.12K | 35.8% | 17,645 | Feb 18, 2026 | — | Form 4 |
| Spiegel Robert J. Director | Award | 5,918 | $1.32 | $7.81K | 3.1% | 194,464 | Dec 31, 2025 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Option exercise (M) — Exercise or conversion of an exempt derivative
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.