Issued 2026-09-16 at $4.08 · now $4.08 (2026-09-16, +0.0% since)
Based on its own history, a month from the 2026-09-16 close, MGNX has typically landed between $2.84 and $5.80 — a range of −30.5% to +42.0% from the issuance price $4.08.
- Actual close
- Typical path (median)
- Middle 50% of outcomes
- 90% range
3,228 overlapping 1 month windows · 2013-10-10 – 2026-08-17 · basis climatology · forecast (batch). Probability up 53.9% (90% CI 51.7–56.1%, ≈1,408 obs).
The cone is anchored at the 2026-09-16 issuance close ($4.08) — the price the forecast resolves against on 2026-10-15, not the latest close. The drawn path shape is illustrative (bands widen with √t); every labeled number is real — the anchor, the scored batch p90/IQR endpoints, and the typical move.
Where MGNX has typically landed a month from the 2026-09-16 close of $4.08 — the range is history, not a prediction.
- now $4.08 (+0.0%)
- typicalThe typical outcome — half of similar past periods did better and half did worse (not an average, so a few wild periods don't skew it). $4.03 (-1.3%)
- middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $3.49–$4.56
- 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $2.84–$5.8
| Start | Return | Max drop | Max rise |
|---|---|---|---|
| 3 worst | |||
| 2024-04-11 | −76.3% | −76.3% | +0.0% |
| 2024-04-12 | −74.6% | −75.0% | +0.0% |
| 2024-04-18 | −73.5% | −73.5% | +1.9% |
| 3 best | |||
| 2020-04-16 | +401.9% | +0.0% | +422.1% |
| 2020-04-08 | +392.0% | −2.8% | +392.0% |
| 2020-04-09 | +371.4% | −9.7% | +371.4% |
3,228 overlapping windows · 2013-10-10 – 2026-09-16 · not cherry-picked
Seasonality · by month iHow this security has tended to do in each calendar month historically — a frequency, never a prediction.
iFor each calendar month, the share of years this security closed higher than the month before, and the average month-over-month return, over ~13 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.Up-frequency and average month-over-month return · historical frequency, not a prediction
Reported insider & political trades
Every Form 4 the people closest to this company have filed with the SEC — plotted against the share price, aggregated by month, and shown with the gap between when each trade happened and when it was disclosed. A public record, not advice.
| Date | Person | Role | Action | Shares @ price | Value | Ownership Δ | vs S&P 1m | vs S&P 6m | Owned after | Filing |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-19 | Peters Jeffrey Stuart | officer | Sale | 31,105 @ $4.15 | $129K | −100.0% of holding | not yet — horizon still open | not yet — horizon still open | 0 | Form 4 · filed 1 day after the trade |
| 2025-08-20 | HEIDEN WILLIAM K | director | Purchase | 49,500 @ $1.49 | $74K | +80.5% of holding | +4.4% | +5.4% | 111,000 | Form 4 · filed 1 day after the trade |
| 2025-08-19 | HEIDEN WILLIAM K | director | Purchase | 50,500 @ $1.52 | $77K | +459.1% of holding | +12.6% | +8.5% | 61,500 | Form 4 · filed 2 days after the trade |
| 2025-02-15 | Smith Beth Ann | officer | Sale | 423 @ $2.56 | $1K | −4.2% of holding | −11.9% | −46.8% | 9,532 | Form 4 · filed 4 days after the trade |
The vs-S&P columns are a labeled look-back on what the stock did after each filing, measured against the index over the same window. Descriptive history, not a claim about the person or a reason to trade.
254 award / exercise / gift records — not counted as purchases
Awards, option exercises, gifts and tax-withholding disposals are shown separately and never counted as open-market purchases or sales — they carry no conviction information.
| Date | Person | Role | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-08-17 | Bonvini Ezio | officer | Option exercise | 40,000 | 185,799 | Form 4 |
| 2026-08-17 | Bonvini Ezio | officer | Option exercise | 40,000 | 88,000 | Form 4 |
| 2026-05-19 | HEIDEN WILLIAM K | director | Award / grant | 3,750 | 3,750 | Form 4 |
| 2026-05-19 | HEIDEN WILLIAM K | director | Award / grant | 22,000 | 22,000 | Form 4 |
| 2026-05-19 | HURWITZ EDWARD | director | Award / grant | 22,000 | 22,000 | Form 4 |
| 2026-05-19 | Ferrante Karen Jean | director | Award / grant | 3,750 | 3,750 | Form 4 |
| 2026-05-19 | O'Brien Federica F. | director | Award / grant | 3,750 | 3,750 | Form 4 |
| 2026-05-19 | HURWITZ EDWARD | director | Award / grant | 3,750 | 3,750 | Form 4 |
| 2026-05-19 | STUMP DAVID C | director | Award / grant | 22,000 | 22,000 | Form 4 |
| 2026-05-19 | Chhabra Meenu | director | Award / grant | 22,000 | 22,000 | Form 4 |
| 2026-05-19 | Chhabra Meenu | director | Award / grant | 3,750 | 3,750 | Form 4 |
| 2026-05-19 | Jackson Scott Thomas | director | Award / grant | 3,750 | 3,750 | Form 4 |
| 2026-05-19 | Koenig Scott | director | Award / grant | 3,750 | 3,750 | Form 4 |
| 2026-05-19 | Koenig Scott | director | Award / grant | 22,000 | 22,000 | Form 4 |
| 2026-05-19 | Liu Margaret | director | Award / grant | 3,750 | 3,750 | Form 4 |
| 2026-05-19 | STUMP DAVID C | director | Award / grant | 3,750 | 3,750 | Form 4 |
| 2026-05-19 | Liu Margaret | director | Award / grant | 22,000 | 22,000 | Form 4 |
| 2026-05-19 | Jackson Scott Thomas | director | Award / grant | 22,000 | 22,000 | Form 4 |
| 2026-05-19 | O'Brien Federica F. | director | Award / grant | 22,000 | 22,000 | Form 4 |
| 2026-05-19 | Ferrante Karen Jean | director | Award / grant | 22,000 | 22,000 | Form 4 |
| 2026-05-18 | Chhabra Meenu | director | Option exercise | 3,750 | 0 | Form 4 |
| 2026-05-18 | Jackson Scott Thomas | director | Option exercise | 3,750 | 0 | Form 4 |
| 2026-05-18 | O'Brien Federica F. | director | Option exercise | 3,750 | 0 | Form 4 |
| 2026-05-18 | Ferrante Karen Jean | director | Option exercise | 3,750 | 0 | Form 4 |
| 2026-05-18 | SIEGEL JAY PHILIP | director | Option exercise | 3,750 | 0 | Form 4 |
| 2026-05-18 | STUMP DAVID C | director | Option exercise | 3,750 | 0 | Form 4 |
| 2026-05-18 | Liu Margaret | director | Option exercise | 3,750 | 0 | Form 4 |
| 2026-05-18 | HEIDEN WILLIAM K | director | Option exercise | 3,750 | 0 | Form 4 |
| 2026-05-18 | HURWITZ EDWARD | director | Option exercise | 3,750 | 0 | Form 4 |
| 2026-05-18 | HEIDEN WILLIAM K | director | Option exercise | 3,750 | 114,750 | Form 4 |
| 2026-05-18 | Chhabra Meenu | director | Option exercise | 3,750 | 14,750 | Form 4 |
| 2026-05-18 | Liu Margaret | director | Option exercise | 3,750 | 14,750 | Form 4 |
| 2026-05-18 | HURWITZ EDWARD | director | Option exercise | 3,750 | 47,824 | Form 4 |
| 2026-05-18 | Jackson Scott Thomas | director | Option exercise | 3,750 | 14,750 | Form 4 |
| 2026-05-18 | O'Brien Federica F. | director | Option exercise | 3,750 | 14,750 | Form 4 |
| 2026-05-18 | SIEGEL JAY PHILIP | director | Option exercise | 3,750 | 14,750 | Form 4 |
| 2026-05-18 | Jackson Scott Thomas | director | Option exercise | 3,750 | 14,750 | Form 4 |
| 2026-05-18 | Ferrante Karen Jean | director | Option exercise | 3,750 | 14,750 | Form 4 |
| 2026-05-18 | SIEGEL JAY PHILIP | director | Option exercise | 3,750 | 14,750 | Form 4 |
| 2026-05-18 | STUMP DAVID C | director | Option exercise | 3,750 | 14,750 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Across 2012–2021, stocks where a CEO, C-suite officer, or director had recently made an open-market common-stock purchase ran about +28 bp per month above the universe average (n=34,268 stock-weeks). A historical tendency, not a prediction.
Congressional disclosures
No congressional trades disclosed for this company.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.