Insider · CIK 0002081729
John Volpone
Files at XFOR (X4 Pharmaceuticals, Inc). First filing Aug 13, 2026, latest Aug 13, 2026.
In brief
John Volpone files SEC Form 4 as president at XFOR (X4 Pharmaceuticals, Inc). Since Aug 13, 2026, John Volpone has reported 0 open-market buys worth $0 and 1 open-market sell worth $109k, the latest filed on Aug 13, 2026.
A track record needs three past buys with six months of prices behind them; John Volpone has 0, so none is measured yet.
The newest scored trade: sold $109k of XFOR on Aug 12, 2026, filed Aug 13, 2026, scored 38 (weak). In the last 12 months: 0 buys worth $0 and 1 sell worth $109k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
XFOR: X4 Pharmaceuticals, 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 |
|---|---|---|---|---|---|
| 38Weak | X4 Pharmaceuticals, Inc | $109k 24,576 shares | -8% | +72% from low-8% 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 13, 2026 | XFOR X4 Pharmaceuticals, Inc | 24,576 0.02% of outstanding | $112k | Aug 12, 2026 | none |
Transactions
Every row this insider has filed, 5 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 12, 2026 | XFOR X4 Pharmaceuticals, Inc | SOpen-market sale Common Stock | -24,576 | $4.44 | $109k | 265,305 | Aug 13, 2026 |
| Oct 29, 2025 | XFOR X4 Pharmaceuticals, Inc | AGrant or award Stock Option (right to buy)derivative | +2,329,154 | $0.00 | $0 | 2,329,154 | Oct 31, 2025 |
| Aug 14, 2025 | XFOR X4 Pharmaceuticals, Inc | AGrant or award Common Stock | +289,881 | $0.00 | $0 | 289,881 | Aug 14, 2025 |
| Aug 12, 2025 | XFOR X4 Pharmaceuticals, Inc | AGrant or award Stock Option (right to buy)derivative | +1,609,873 | $0.00 | $0 | 1,609,873 | Aug 14, 2025 |
| Aug 14, 2025 | XFOR X4 Pharmaceuticals, Inc | AGrant or award Stock Option (right to buy)derivative | +529,201 | $0.00 | $0 | 529,201 | Aug 14, 2025 |
Questions about John Volpone
Answered from the filings on this page, as of the latest one.
Is John Volpone buying or selling?
In the last 12 months John Volpone reported 0 open-market buys worth $0 and 1 open-market sell worth $109k on SEC Form 4; the latest was sold $109k of XFOR on Aug 12, 2026. Grants, option exercises and tax withholding are not counted.
How did John Volpone's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and John Volpone has 0.
Where does John Volpone file Form 4?
John Volpone has filed Form 4 at XFOR (X4 Pharmaceuticals, Inc) as President. 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.