James Ziegler insider trades: Geron (GERN) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where James reports to the SEC
Open-market buys and sales
1 trade reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Feb 27, 2025 | GERN | ↑ Buy | 100,000 | $1.60 | $160K | Direct | Mar 3, 2025 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other GERN insiders
Open-market trades in the last 12 months
About James Ziegler's insider trades
James Ziegler is EVP, Chief Commercial Officer at Geron (GERN). Since Feb 27, 2025, James has reported 1 open-market purchase worth $160K and no sales on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every GERN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.