Insider · CIK 0001251779
Gregory L Weaver
Files at ALT (Altimmune, Inc.). First filing Mar 14, 2025, latest Apr 1, 2026.
Gregory L Weaver files SEC Form 4 as CFO at ALT (Altimmune, Inc.). Since Mar 14, 2025, Gregory L Weaver has reported 3 open-market buys worth $101k and 0 open-market sells worth $0, the latest filed on Apr 1, 2026.
A track record needs three past buys with six months of prices behind them; Gregory L Weaver has 0, so none is measured yet.
The newest scored trade: bought $31k of ALT on Apr 1, 2026, filed Apr 1, 2026, scored 71 (notable). In the last 12 months: 2 buys worth $49k 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 |
|---|---|---|---|---|---|
| 71Notable | Altimmune, Inc. | $31k 10,000 shares | +36% | +8% from low-60% from high | |
| 54Moderate | Altimmune, Inc. | $18k 5,000 shares | +22% | +5% from low-54% from high | |
| 45Moderate | Altimmune, Inc. | $52k 10,000 shares | - | - |
Transactions
Every row this insider has filed, 15 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | ALT Altimmune, Inc. | MOption exercise Common Stock, par value $0.0001 | +14,475 | $0.00 | $0 | 54,306 | 8 d ago |
| Oct 1, 2026 | ALT Altimmune, Inc. | FTax withholding Common Stock, par value $0.0001 | -4,379 | $2.76 | $12k | 49,927 | 8 d ago |
| Oct 1, 2026 | ALT Altimmune, Inc. | MOption exercise Restricted Stock Unitsderivative | -14,475 | $0.00 | $0 | 43,425 | 8 d ago |
| Apr 1, 2026 | ALT Altimmune, Inc. | POpen-market purchase Common Stock, par value $0.0001 | +10,000 | $3.15 | $31k | 38,078 | Apr 1, 2026 |
| Mar 6, 2026 | ALT Altimmune, Inc. | POpen-market purchase Common Stock, par value $0.0001 | +5,000 | $3.54 | $18k | 28,078 | Mar 9, 2026 |
| Feb 26, 2026 | ALT Altimmune, Inc. | AGrant or award Stock Options (option to buy)derivative | +259,000 | $0.00 | $0 | 259,000 | Feb 27, 2026 |
| Feb 26, 2026 | ALT Altimmune, Inc. | AGrant or award Restricted Stock Unitsderivative | +111,000 | $0.00 | $0 | 111,000 | Feb 27, 2026 |
| Nov 11, 2025 | ALT Altimmune, Inc. | MOption exercise Common Stock, par value $0.0001 | +18,750 | $0.00 | $0 | 28,750 | Nov 12, 2025 |
| Nov 11, 2025 | ALT Altimmune, Inc. | FTax withholding Common Stock, par value $0.0001 | -5,672 | $4.28 | $24k | 23,078 | Nov 12, 2025 |
| Nov 11, 2025 | ALT Altimmune, Inc. | MOption exercise Restricted Stock Unitsderivative | -18,750 | $0.00 | $0 | 56,250 | Nov 12, 2025 |
| Oct 1, 2025 | ALT Altimmune, Inc. | AGrant or award Stock Options (option to buy)derivative | +166,800 | $0.00 | $0 | 166,800 | Oct 3, 2025 |
| Oct 1, 2025 | ALT Altimmune, Inc. | AGrant or award Restricted Stock Unitsderivative | +57,900 | $0.00 | $0 | 57,900 | Oct 3, 2025 |
| Mar 13, 2025 | ALT Altimmune, Inc. | POpen-market purchase Common Stock, par value $0.0001 | +10,000 | $5.20 | $52k | 10,000 | Mar 14, 2025 |
| Nov 11, 2024 | ALT Altimmune, Inc. | AGrant or award Stock Options (option to buy)derivative | +225,000 | $0.00 | $0 | 225,000 | Nov 12, 2024 |
| Nov 11, 2024 | ALT Altimmune, Inc. | AGrant or award Restricted Stock Unitsderivative | +75,000 | $0.00 | $0 | 75,000 | Nov 12, 2024 |
Questions about Gregory L Weaver
Answered from the filings on this page, as of the latest one.
Is Gregory L Weaver buying or selling?
In the last 12 months Gregory L Weaver reported 2 open-market buys worth $49k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $31k of ALT on Apr 1, 2026. Grants, option exercises and tax withholding are not counted.
How did Gregory L Weaver's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Gregory L Weaver has 0.
Where does Gregory L Weaver file Form 4?
Gregory L Weaver has filed Form 4 at ALT (Altimmune, Inc.) as Chief Financial 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.