Insider · CIK 0002035113
James Ziegler
Files at GERN (GERON CORP). First filing Mar 3, 2025, latest Mar 3, 2025.
In brief
James Ziegler files SEC Form 4 as officer at GERN (GERON CORP). Since Mar 3, 2025, James Ziegler has reported 1 open-market buy worth $160k and 0 open-market sells worth $0, the latest filed on Mar 3, 2025.
A track record needs three past buys with six months of prices behind them; James Ziegler has 0, so none is measured yet.
The newest scored trade: bought $160k of GERN on Feb 27, 2025, filed Mar 3, 2025, scored 49 (moderate).
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
GERN: GERON CORP
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 49Moderate | GERON CORP | $160k 100,000 shares | - | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Dec 15, 2025 | GERN GERON CORPORATION | 20,000 0.00% of outstanding | $27k | Dec 15, 2025 | none |
Transactions
Every row this insider has filed, 3 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Feb 27, 2025 | GERN GERON CORP | POpen-market purchase Common Stock | +100,000 | $1.60 | $160k | 100,000 | Mar 3, 2025 |
| Feb 18, 2025 | GERN GERON CORP | AGrant or award Stock Option (right to buy)derivative | +529,000 | $0.00 | $0 | 529,000 | Feb 20, 2025 |
| Feb 18, 2025 | GERN GERON CORP | AGrant or award Restricted Stock Unitsderivative | +89,000 | $0.00 | $0 | 89,000 | Feb 20, 2025 |
Questions about James Ziegler
Answered from the filings on this page, as of the latest one.
Is James Ziegler buying or selling?
Not in the last 12 months. James Ziegler's latest open-market trade on SEC Form 4 was bought $160k of GERN on Feb 27, 2025.
How did James Ziegler's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and James Ziegler has 0.
Where does James Ziegler file Form 4?
James Ziegler has filed Form 4 at GERN (GERON CORP) as EVP, Chief Commercial Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.