Insider · CIK 0001409939
John Gill
Files at ALT (Altimmune, Inc.). First filing Dec 23, 2025, latest Apr 6, 2026.
In brief
John Gill files SEC Form 4 as director at ALT (Altimmune, Inc.). Since Dec 23, 2025, John Gill has reported 2 open-market buys worth $83k and 0 open-market sells worth $0, the latest filed on Apr 6, 2026.
A track record needs three past buys with six months of prices behind them; John Gill has 0, so none is measured yet.
The newest scored trade: bought $31k of ALT on Apr 6, 2026, filed Apr 6, 2026, scored 53 (moderate). In the last 12 months: 2 buys worth $83k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
ALT: Altimmune, Inc.
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 |
|---|---|---|---|---|---|
| 53Moderate | Altimmune, Inc. | $31k 9,200 shares | +74% | +16% from low-57% from high | |
| 53Moderate | Altimmune, Inc. | $51k 12,500 shares | - | +18% from low-50% from high |
Transactions
Every row this insider has filed, 5 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| May 1, 2026 | ALT Altimmune, Inc. | AGrant or award Stock Options (option to buy)derivative | +48,800 | $0.00 | $0 | 48,800 | May 1, 2026 |
| Apr 6, 2026 | ALT Altimmune, Inc. | POpen-market purchase Common Stock, par value $0.0001 | +9,200 | $3.41 | $31k | 21,700 | Apr 6, 2026 |
| Dec 23, 2025 | ALT Altimmune, Inc. | POpen-market purchase Common Stock, par value $0.0001 | +12,500 | $4.10 | $51k | 12,500 | Dec 23, 2025 |
| Jan 6, 2022 | ALT Altimmune, Inc. | GGift Common Stock, par value $0.0001 | -2,714 | $0.00 | $0 | 0 | Sep 29, 2025 |
| Sep 25, 2025 | ALT Altimmune, Inc. | AGrant or award Stock Options (option to buy)derivative | +48,800 | $0.00 | $0 | 48,800 | Sep 29, 2025 |
Questions about John Gill
Answered from the filings on this page, as of the latest one.
Is John Gill buying or selling?
In the last 12 months John Gill reported 2 open-market buys worth $83k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $31k of ALT on Apr 6, 2026. Grants, option exercises and tax withholding are not counted.
How did John Gill's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and John Gill has 0.
Where does John Gill file Form 4?
John Gill has filed Form 4 at ALT (Altimmune, Inc.). 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.