Insider · CIK 0001722857
Jay Philip Siegel
Files at MGNX (MACROGENICS INC). First filing -, latest -.
In brief
Jay Philip Siegel files SEC Form 4 as director at MGNX (MACROGENICS INC). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; Jay Philip Siegel has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
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 | MGNX MACROGENICS, INC. | 42,080 0.07% of outstanding | $176k | Aug 17, 2026 | $131k |
| Aug 3, 2026 | MGNX MACROGENICS, INC. | 34,916 0.05% of outstanding | $131k | Aug 3, 2026 | none |
Transactions
Every row this insider has filed, 6 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| May 18, 2026 | MGNX MACROGENICS INC | MOption exercise Common Stock | +3,750 | - | - | 14,750 | May 20, 2026 |
| May 18, 2026 | MGNX MACROGENICS INC | MOption exercise Restricted Stock Unitderivative | -3,750 | $0.00 | $0 | 0 | May 20, 2026 |
| May 20, 2025 | MGNX MACROGENICS INC | MOption exercise Common Stock | +6,500 | - | - | 11,000 | May 22, 2025 |
| May 20, 2025 | MGNX MACROGENICS INC | MOption exercise Restricted Stock Unitderivative | -6,500 | $0.00 | $0 | 0 | May 22, 2025 |
| May 21, 2025 | MGNX MACROGENICS INC | AGrant or award Restricted Stock Unitderivative | +3,750 | $0.00 | $0 | 3,750 | May 22, 2025 |
| May 21, 2025 | MGNX MACROGENICS INC | AGrant or award Stock Option (right to buy)derivative | +22,000 | $0.00 | $0 | 22,000 | May 22, 2025 |
Questions about Jay Philip Siegel
Answered from the filings on this page, as of the latest one.
Is Jay Philip Siegel buying or selling?
Jay Philip Siegel has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Jay Philip Siegel's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Jay Philip Siegel has 0.
Where does Jay Philip Siegel file Form 4?
Jay Philip Siegel has filed Form 4 at MGNX (MACROGENICS 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.