John Gill bought $51k of ALT
director at Altimmune, Inc.. 12,500 shares at an average of $4.10, traded Dec 23, 2025, filed Dec 23, 2025.
Score components
- +15RoleDirector
- +7Trade size$51k at market
- +8Relative to holdingsFirst purchase: no shares before this trade
- +8Price context50% 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 +34.5%, 3m -19.0%, 6m -27.3%.
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 0001409939-25-000005, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Dec 23, 2025 | POpen-market purchase Common Stock, par value $0.0001 | +12,500 | $4.10 | $51k | 12,500 | Dec 23, 2025 |
Related signals
Other insiders at Altimmune, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 45Moderate | ALTbuy Altimmune, Inc. | Jerome Benedict Durso President and CEO | $44k 15,000 shares | +32% | |
| 53Moderate | Altimmune, Inc. | John Gill director | $31k 9,200 shares | +74% | |
| 71Notable | Altimmune, Inc. | Gregory L Weaver Chief Financial Officer | $31k 10,000 shares | +36% | |
| 75Notable | Altimmune, Inc. | Jerome Benedict Durso President and CEO | $47k 15,000 shares | +46% | |
| 54Moderate | Altimmune, Inc. | Gregory L Weaver Chief Financial Officer | $18k 5,000 shares | +22% | |
| 74Notable | Altimmune, Inc. | Jerome Benedict Durso President and CEO | $71k 20,000 shares | +160% | |
| 48Moderate | Altimmune, Inc. | Wayne Pisano director | $20k 5,000 shares | +59% | |
| 48Moderate | Altimmune, Inc. | Catherine A. Sohn director | $2,118 500 shares | +50% | |
| 56Moderate | Altimmune, Inc. | Diane Jorkasky director | $2,003 527 shares | - | |
| 53Moderate | Altimmune, Inc. | Jerome Benedict Durso President and CEO | $52k 12,500 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.