Ron Martell bought $100k of JSPR
President and CEO at Jasper Therapeutics, Inc.. 41,000 shares at an average of $2.43, traded Sep 22, 2025, filed Sep 24, 2025.
Score components
- +25RoleCEO
- +10Trade size$100k at market
- +10Relative to holdingsHoldings up 124%
- +18Price context9% above the 52-week low; 90% below the 52-week high
- +15Cluster4 insiders buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +1.7%, 3m -21.5%, 6m -53.2%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001213900-25-091099, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 22, 2025 | POpen-market purchase Voting Common Stock | +41,000 | $2.43 | $100k | 74,118 | Sep 24, 2025 |
| Sep 22, 2025 | POpen-market purchase Common Stock Warrant (right to buy)derivative | +41,000 | - | - | 41,000 | Sep 24, 2025 |
Related signals
Other insiders at Jasper Therapeutics, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 64Notable | Jasper Therapeutics, Inc. | Judith Anne Shizuru director | $100k 41,000 shares | +35% | |
| 63Notable | Jasper Therapeutics, Inc. | Svetlana Lucas director | $49k 20,000 shares | - | |
| 66Notable | Jasper Therapeutics, Inc. | Thomas G Wiggans director | $100k 41,000 shares | - | |
| 0Weak | Jasper Therapeutics, Inc. | Jeetinder Singh Mahal Chief Operating Officer | $20k 900 shares | -3% | |
| 0Weak | Jasper Therapeutics, Inc. | Jeetinder Singh Mahal Chief Operating Officer | $24k 900 shares | -3% | |
| 50Moderate | Jasper Therapeutics, Inc. | Carlyle Holdings I GP Inc. owner | $2.5M 190,000 shares | +22% | |
| 50Moderate | Jasper Therapeutics, Inc. | Velan Capital Investment Management LP owner | $4.5M 350,000 shares | +42% | |
| 34Weak | JSPRbuy Jasper Therapeutics, Inc. | Thomas G Wiggans director | $6,486 10,000 shares | +25% | |
| 34Weak | JSPRbuy Jasper Therapeutics, Inc. | Thomas G Wiggans director | $6,383 10,000 shares | +33% | |
| 31Weak | JSPRbuy Jasper Therapeutics, Inc. | Thomas G Wiggans director | $18k 30,000 shares | - |
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.