Insider · CIK 0001636135
William E. Duke
Files at IVVD (Invivyd, Inc.). First filing Aug 19, 2025, latest Aug 18, 2026.
In brief
William E. Duke files SEC Form 4 as CFO at IVVD (Invivyd, Inc.). Since Aug 19, 2025, William E. Duke has reported 0 open-market buys worth $0 and 3 open-market sells worth $125k, the latest filed on Aug 18, 2026.
A track record needs three past buys with six months of prices behind them; William E. Duke has 0, so none is measured yet.
The newest scored trade: sold $32k of IVVD on Aug 17, 2026, filed Aug 18, 2026, scored 12 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 2 sells worth $95k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
IVVD: Invivyd, 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 |
|---|---|---|---|---|---|
| 12Weak | Invivyd, Inc. | $32k 40,780 shares | -19% | +43% from low-74% from high | |
| 20Weak | Invivyd, Inc. | $63k 40,627 shares | -27% | +229% from low-46% from high | |
| 27Weak | Invivyd, Inc. | $30k 49,656 shares | -50% | +62% from low-72% from high |
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 |
|---|---|---|---|---|---|
| Aug 17, 2026 | IVVD Invivyd, Inc. | 40,800 0.01% of outstanding | $29k | Aug 17, 2026 | none |
| Feb 17, 2026 | IVVD Invivyd, Inc. | 39,600 0.01% of outstanding | $62k | Feb 17, 2026 | none |
| Aug 18, 2025 | IVVD Invivyd, Inc. | 39,601 0.03% of outstanding | $28k | Aug 18, 2025 | none |
Transactions
Every row this insider has filed, 16 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 15, 2026 | IVVD Invivyd, Inc. | MOption exercise Common Stock10b5-1 | +102,000 | - | - | 209,717 | Aug 18, 2026 |
| Aug 17, 2026 | IVVD Invivyd, Inc. | SOpen-market sale Common Stock10b5-1 | -22,355 | $0.72 | $16k | 187,362 | Aug 18, 2026 |
| Aug 18, 2026 | IVVD Invivyd, Inc. | SOpen-market sale Common Stock10b5-1 | -18,425 | $0.84 | $16k | 168,937 | Aug 18, 2026 |
| Aug 15, 2026 | IVVD Invivyd, Inc. | MOption exercise Restricted Stock Unitsderivative10b5-1 | -102,000 | $0.00 | $0 | 0 | Aug 18, 2026 |
| Feb 15, 2026 | IVVD Invivyd, Inc. | MOption exercise Common Stock10b5-1 | +99,000 | - | - | 148,344 | Feb 18, 2026 |
| Feb 17, 2026 | IVVD Invivyd, Inc. | SOpen-market sale Common Stock10b5-1 | -19,663 | $1.54 | $30k | 128,681 | Feb 18, 2026 |
| Feb 18, 2026 | IVVD Invivyd, Inc. | SOpen-market sale Common Stock10b5-1 | -20,964 | $1.58 | $33k | 107,717 | Feb 18, 2026 |
| Feb 15, 2026 | IVVD Invivyd, Inc. | MOption exercise Restricted Stock Unitsderivative10b5-1 | -99,000 | $0.00 | $0 | 102,000 | Feb 18, 2026 |
| Jan 29, 2026 | IVVD Invivyd, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +625,000 | $0.00 | $0 | 625,000 | Jan 30, 2026 |
| Aug 15, 2025 | IVVD Invivyd, Inc. | MOption exercise Common Stock10b5-1 | +99,000 | - | - | 99,000 | Aug 19, 2025 |
| Aug 18, 2025 | IVVD Invivyd, Inc. | SOpen-market sale Common Stock10b5-1 | -20,013 | $0.65 | $13k | 78,987 | Aug 19, 2025 |
| Aug 19, 2025 | IVVD Invivyd, Inc. | SOpen-market sale Common Stock10b5-1 | -29,643 | $0.57 | $17k | 49,344 | Aug 19, 2025 |
| Aug 15, 2025 | IVVD Invivyd, Inc. | MOption exercise Restricted Stock Unitsderivative10b5-1 | -99,000 | $0.00 | $0 | 201,000 | Aug 19, 2025 |
| Feb 15, 2025 | IVVD Invivyd, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +950,000 | $0.00 | $0 | 950,000 | Feb 19, 2025 |
| Feb 15, 2025 | IVVD Invivyd, Inc. | AGrant or award Restricted Stock Unitsderivative | +300,000 | $0.00 | $0 | 300,000 | Feb 19, 2025 |
| Dec 18, 2023 | IVVD Invivyd, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +200,000 | $0.00 | $0 | 200,000 | Dec 20, 2023 |
Questions about William E. Duke
Answered from the filings on this page, as of the latest one.
Is William E. Duke buying or selling?
In the last 12 months William E. Duke reported 0 open-market buys worth $0 and 2 open-market sells worth $95k on SEC Form 4; the latest was sold $32k of IVVD on Aug 17, 2026. Grants, option exercises and tax withholding are not counted.
How did William E. Duke's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and William E. Duke has 0.
Where does William E. Duke file Form 4?
William E. Duke has filed Form 4 at IVVD (Invivyd, 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.