Issued 2026-09-16 at $21.18 · now $21.18 (2026-09-16, +0.0% since)
Based on its own history, a month from the 2026-09-16 close, NAMS has typically landed between $17.07 and $27.89 — a range of −19.4% to +31.7% from the issuance price $21.18.
- Actual close
- Typical path (median)
- Middle 50% of outcomes
- 90% range
1,386 overlapping 1 month windows · 2021-02-09 – 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 ($21.18) — 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 NAMS has typically landed a month from the 2026-09-16 close of $21.18 — the range is history, not a prediction.
- now $21.18 (+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). $21.22 (+0.2%)
- middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $19.67–$22.78
- 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $17.07–$27.89
Actual 1-month windows behind the coneiEvery overlapping 1-month window in this security's own price history was ranked by realized return; shown are the 3 worst and 3 best of 1,386 windows spanning 2021-02-09 to 2026-09-16. Not cherry-picked — these are the extremes of the full sample. Max drop / max rise are the deepest and highest points reached within each window. See /methodology.
| Start | Return | Max drop | Max rise |
|---|---|---|---|
| 3 worst | |||
| 2025-03-12 | −36.2% | −36.2% | +3.0% |
| 2025-03-13 | −35.9% | −36.8% | +2.1% |
| 2025-03-10 | −35.1% | −35.1% | +3.0% |
| 3 best | |||
| 2023-12-22 | +117.9% | +0.0% | +117.9% |
| 2023-12-20 | +111.5% | +0.0% | +111.5% |
| 2023-12-21 | +106.9% | −1.5% | +106.9% |
1,386 overlapping windows · 2021-02-09 – 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 ~6 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.Jan
60%
+16.4%
n=5
Feb
40%
+3.7%
n=5
Mar
50%
−1.7%
n=6
Apr
33%
−2.9%
n=6
May
17%
−1.1%
n=6
Jun
67%
−1.7%
n=6
Jul
33%
−2.0%
n=6
Aug
33%
−2.2%
n=6
Sep
67%
−0.9%
n=6
Oct
60%
+6.7%
n=5
Nov
60%
+2.9%
n=5
Dec
60%
+12.6%
n=5
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-14 | Davidson Michael H. | director | Purchase | 10,000 @ $22.65 | $227K | +1.3% of holding | not yet — horizon still open | not yet — horizon still open | 792,923 | Form 4 · filed 1 day after the trade |
| 2026-09-04 | Smither John W | director | Sale | 1,600 @ $25.32 | $41K | −15.4% of holding | not yet — horizon still open | not yet — horizon still open | 8,760 | Form 4 · filed 5 days after the trade |
| 2026-08-24 | Kastelein Johannes Jacob Pieter | director | Sale | 125,000 @ $26.91 | $3.4M | −64.3% of holding | not yet — horizon still open | not yet — horizon still open | 69,302 | Form 4 · filed 1 day after the trade |
| 2026-07-20 | Kooij Louise Frederika | officer | Sale | 70,200 @ $29.96 | $2.1M | −54.3% of holding | −11.6% | not yet — horizon still open | 59,153 | Form 4 · filed 2 days after the trade |
| 2026-07-20 | Kooij Louise Frederika | officer | Sale | 31,885 @ $31.05 | $990K | −53.9% of holding | −11.6% | not yet — horizon still open | 27,268 | Form 4 · filed 2 days after the trade |
| 2026-07-20 | Kooij Louise Frederika | officer | Sale | 2,915 @ $31.71 | $92K | −10.7% of holding | −11.6% | not yet — horizon still open | 24,353 | Form 4 · filed 2 days after the trade |
| 2026-06-22 | Kooij Louise Frederika | officer | Sale | 39,700 @ $30.20 | $1.2M | −61.7% of holding | +2.4% | not yet — horizon still open | 24,653 | Form 4 · filed 2 days after the trade |
| 2026-06-22 | Kooij Louise Frederika | officer | Sale | 300 @ $30.73 | $9K | −1.2% of holding | +2.4% | not yet — horizon still open | 24,353 | Form 4 · filed 2 days after the trade |
| 2026-05-26 | Kooij Louise Frederika | officer | Sale | 65,000 @ $35.69 | $2.3M | −72.7% of holding | −10.2% | not yet — horizon still open | 24,353 | Form 4 · filed 1 day after the trade |
| 2026-03-11 | LANGE LOUIS G | director | Sale | 44,173 @ $30.41 | $1.3M | −80.3% of holding | +10.1% | −42.9% | 10,806 | Form 4 · filed 1 day after the trade |
| 2026-03-11 | LANGE LOUIS G | director | Sale | 446 @ $31.23 | $14K | −4.1% of holding | +10.1% | −42.9% | 10,360 | Form 4 · filed 1 day after the trade |
| 2026-03-09 | Kastelein Johannes Jacob Pieter | director | Sale | 101,409 @ $30.29 | $3.1M | −59.4% of holding | +10.6% | −30.2% | 69,302 | Form 4 · filed same day |
| 2026-03-06 | Kastelein Johannes Jacob Pieter | director | Sale | 94,124 @ $30.32 | $2.9M | −57.6% of holding | +15.3% | −30.1% | 69,302 | Form 4 · filed 3 days after the trade |
| 2026-03-06 | LANGE LOUIS G | director | Sale | 28,186 @ $29.41 | $829K | −100.0% of holding | +15.3% | −30.1% | 0 | Form 4 · filed 4 days after the trade |
| 2026-03-05 | Kastelein Johannes Jacob Pieter | director | Sale | 104,467 @ $30.30 | $3.2M | −60.1% of holding | +16.2% | −28.3% | 69,302 | Form 4 · filed 4 days after the trade |
| 2026-03-02 | Davidson Michael H. | director | Sale | 443,707 @ $33.25 | $14.8M | −71.8% of holding | +2.5% | −35.2% | 174,144 | Form 4 · filed same day |
| 2026-02-26 | Davidson Michael H. | director | Sale | 165,408 @ $33.63 | $5.6M | −25.7% of holding | −4.8% | −34.3% | 477,783 | Form 4 · filed same day |
| 2026-02-26 | Davidson Michael H. | director | Sale | 17,924 @ $34.44 | $617K | −9.3% of holding | −4.8% | −34.3% | 174,144 | Form 4 · filed same day |
| 2026-02-25 | Davidson Michael H. | director | Sale | 46,517 @ $35.11 | $1.6M | −9.0% of holding | −4.1% | −32.8% | 471,595 | Form 4 · filed 1 day after the trade |
| 2026-02-25 | Davidson Michael H. | director | Sale | 10,436 @ $35.96 | $375K | −2.2% of holding | −4.1% | −32.8% | 461,159 | Form 4 · filed 1 day after the trade |
| 2026-02-25 | Davidson Michael H. | director | Sale | 1,300 @ $36.68 | $48K | −0.3% of holding | −4.1% | −32.8% | 459,859 | Form 4 · filed 1 day after the trade |
| 2026-02-24 | Davidson Michael H. | director | Sale | 61,547 @ $36.13 | $2.2M | −11.7% of holding | −9.7% | −36.1% | 463,020 | Form 4 · filed 2 days after the trade |
| 2026-02-24 | Davidson Michael H. | director | Sale | 3,161 @ $36.46 | $115K | −0.7% of holding | −9.7% | −36.1% | 459,859 | Form 4 · filed 2 days after the trade |
| 2026-02-20 | Kastelein Johannes Jacob Pieter | director | Sale | 30,789 @ $35.46 | $1.1M | −36.5% of holding | −11.0% | −33.3% | 53,500 | Form 4 · filed 4 days after the trade |
| 2026-02-20 | Kastelein Johannes Jacob Pieter | director | Sale | 14,692 @ $35.00 | $514K | −14.8% of holding | −11.0% | −33.3% | 84,289 | Form 4 · filed 4 days after the trade |
| 2026-01-28 | Kooij Louise Frederika | officer | Sale | 32,612 @ $31.80 | $1.0M | −57.2% of holding | +12.6% | −17.9% | 24,353 | Form 4 · filed 1 day after the trade |
| 2026-01-27 | Kooij Louise Frederika | officer | Sale | 39,816 @ $32.62 | $1.3M | −62.0% of holding | +5.9% | −19.9% | 24,353 | Form 4 · filed 2 days after the trade |
| 2026-01-26 | Kooij Louise Frederika | officer | Sale | 34,091 @ $32.77 | $1.1M | −58.0% of holding | +8.1% | −21.1% | 24,662 | Form 4 · filed 1 day after the trade |
| 2026-01-26 | Kooij Louise Frederika | officer | Sale | 309 @ $33.45 | $10K | −1.3% of holding | +8.1% | −21.1% | 24,353 | Form 4 · filed 1 day after the trade |
| 2026-01-23 | Kooij Louise Frederika | officer | Sale | 25,405 @ $33.44 | $850K | −40.6% of holding | +8.3% | −17.1% | 37,120 | Form 4 · filed 4 days after the trade |
| 2026-01-23 | Kooij Louise Frederika | officer | Sale | 12,767 @ $34.37 | $439K | −34.4% of holding | +8.3% | −17.1% | 24,353 | Form 4 · filed 4 days after the trade |
| 2026-01-21 | Somaiya Mayur Ian | officer | Sale | 24,362 @ $33.80 | $823K | −29.4% of holding | +4.2% | −18.3% | 58,382 | Form 4 · filed 1 day after the trade |
| 2026-01-21 | Somaiya Mayur Ian | officer | Sale | 15,422 @ $33.25 | $513K | −15.7% of holding | +4.2% | −18.3% | 82,744 | Form 4 · filed 1 day after the trade |
| 2026-01-20 | Somaiya Mayur Ian | officer | Sale | 39,712 @ $31.78 | $1.3M | −33.7% of holding | +5.8% | −13.1% | 77,986 | Form 4 · filed 2 days after the trade |
| 2026-01-20 | Somaiya Mayur Ian | officer | Sale | 19,604 @ $32.38 | $635K | −25.1% of holding | +5.8% | −13.1% | 58,382 | Form 4 · filed 2 days after the trade |
| 2026-01-20 | Somaiya Mayur Ian | officer | Sale | 900 @ $30.64 | $28K | −0.8% of holding | +5.8% | −13.1% | 117,698 | Form 4 · filed 2 days after the trade |
| 2026-01-07 | Davidson Michael H. | director | Sale | 11,582 | — | −3.0% of holding | −3.4% | −10.6% | 378,859 | Form 4 · filed 2 days after the trade |
| 2026-01-07 | Davidson Michael H. | director | Sale | 11,582 | — | −3.0% of holding | −3.4% | −10.6% | 378,859 | Form 4 · filed 2 days after the trade |
| 2026-01-05 | Kastelein Johannes Jacob Pieter | director | Sale | 6,000 @ $33.25 | $200K | −7.5% of holding | −1.3% | −1.9% | 73,481 | Form 4 · filed 2 days after the trade |
| 2026-01-05 | Somaiya Mayur Ian | officer | Sale | 5,118 @ $33.25 | $170K | −13.5% of holding | −1.3% | −1.9% | 32,882 | Form 4 · filed 2 days after the trade |
| 2026-01-05 | Kooij Louise Frederika | officer | Sale | 2,647 @ $33.25 | $88K | −17.6% of holding | −1.3% | −1.9% | 12,353 | Form 4 · filed 2 days after the trade |
| 2025-12-26 | Kooij Louise Frederika | officer | Sale | 43,872 @ $35.30 | $1.5M | −74.5% of holding | −10.4% | −12.7% | 15,000 | Form 4 · filed 3 days after the trade |
| 2025-12-24 | Kooij Louise Frederika | officer | Sale | 26,011 @ $35.68 | $928K | −63.4% of holding | −9.2% | −12.9% | 15,000 | Form 4 · filed 5 days after the trade |
| 2025-12-23 | Kooij Louise Frederika | officer | Sale | 75,117 @ $36.21 | $2.7M | −83.4% of holding | −10.7% | −14.1% | 15,000 | Form 4 · filed 6 days after the trade |
| 2025-09-15 | Topper James N | director | Purchase | 660 @ $23.70 | $16K | +0.0% of holding | +56.5% | +24.8% | 3,028,524 | Form 4 · filed 2 days after the trade |
| 2025-09-09 | Kooij Louise Frederika | officer | Sale | 96,896 @ $26.11 | $2.5M | −86.6% of holding | +19.7% | +13.3% | 15,000 | Form 4 · filed 1 day after the trade |
| 2025-09-09 | Kooij Louise Frederika | officer | Sale | 53,104 @ $25.31 | $1.3M | −32.2% of holding | +19.7% | +13.3% | 111,896 | Form 4 · filed 1 day after the trade |
| 2025-09-08 | Topper James N | director | Purchase | 1,260 @ $24.99 | $31K | +0.0% of holding | +25.0% | +19.7% | 3,027,864 | Form 4 · filed 2 days after the trade |
| 2025-09-03 | Kooij Louise Frederika | officer | Sale | 18,073 @ $25.09 | $453K | −54.6% of holding | +19.1% | +14.7% | 15,000 | Form 4 · filed 2 days after the trade |
| 2025-08-25 | Kooij Louise Frederika | officer | Sale | 8,269 @ $24.86 | $206K | −35.5% of holding | +5.2% | +33.2% | 15,000 | Form 4 · filed 2 days after the trade |
| 2025-08-22 | Kastelein Johannes Jacob Pieter | director | Sale | 42,342 @ $25.08 | $1.1M | −35.5% of holding | +3.6% | +36.9% | 76,960 | Form 4 · filed 3 days after the trade |
| 2025-08-22 | Kastelein Johannes Jacob Pieter | director | Sale | 7,658 @ $25.49 | $195K | −10.0% of holding | +3.6% | +36.9% | 69,302 | Form 4 · filed 3 days after the trade |
| 2025-08-21 | Kastelein Johannes Jacob Pieter | director | Sale | 50,000 @ $24.29 | $1.2M | −29.5% of holding | +5.5% | +40.0% | 119,302 | Form 4 · filed 4 days after the trade |
| 2025-08-11 | Topper James N | director | Purchase | 471 @ $23.98 | $11K | +0.0% of holding | +7.8% | +33.7% | 3,026,604 | Form 4 · filed 2 days after the trade |
| 2025-07-16 | Kling Douglas F | officer | Sale | 51,043 @ $21.10 | $1.1M | −53.7% of holding | +17.0% | +41.3% | 44,000 | Form 4 · filed 1 day after the trade |
| 2025-07-15 | Kling Douglas F | officer | Sale | 44,025 @ $21.38 | $941K | −48.1% of holding | +18.9% | +39.4% | 47,544 | Form 4 · filed 2 days after the trade |
| 2025-07-15 | Kling Douglas F | officer | Sale | 3,544 @ $22.12 | $78K | −7.5% of holding | +18.9% | +39.4% | 44,000 | Form 4 · filed 2 days after the trade |
| 2025-06-25 | Topper James N | director | Purchase | 1,260 @ $18.26 | $23K | +0.0% of holding | +23.8% | +82.2% | 3,026,133 | Form 4 · filed 1 day after the trade |
| 2025-06-24 | Topper James N | director | Purchase | 2,520 @ $18.43 | $46K | +0.1% of holding | +22.6% | +84.8% | 3,024,873 | Form 4 · filed 2 days after the trade |
| 2025-06-16 | Kling Douglas F | officer | Sale | 81,891 @ $19.19 | $1.6M | −56.9% of holding | +6.8% | +65.4% | 62,109 | Form 4 · filed 2 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.
197 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 |
|---|---|---|---|---|---|---|
| 2026-09-01 | Gunning Robert William | officer | Award / grant | 3,200 | 3,200 | Form 4 |
| 2026-09-01 | Gunning Robert William | officer | Award / grant | 14,000 | 14,000 | Form 4 |
| 2026-08-24 | Kastelein Johannes Jacob Pieter | director | Option exercise | 125,000 | 395,229 | Form 4 |
| 2026-08-24 | Kastelein Johannes Jacob Pieter | director | Option exercise | 125,000 | 194,302 | Form 4 |
| 2026-08-24 | Kastelein Johannes Jacob Pieter | director | Option exercise | 125,000 | 194,302 | Form 4 |
| 2026-07-20 | Kooij Louise Frederika | officer | Option exercise | 80,000 | 129,353 | Form 4 |
| 2026-07-20 | Kooij Louise Frederika | officer | Option exercise | 25,000 | 49,353 | Form 4 |
| 2026-07-20 | Kooij Louise Frederika | officer | Option exercise | 25,000 | 10,000 | Form 4 |
| 2026-07-20 | Kooij Louise Frederika | officer | Option exercise | 80,000 | 70,494 | Form 4 |
| 2026-06-22 | Kooij Louise Frederika | officer | Option exercise | 25,000 | 49,353 | Form 4 |
| 2026-06-22 | Kooij Louise Frederika | officer | Option exercise | 15,000 | 64,353 | Form 4 |
| 2026-06-22 | Kooij Louise Frederika | officer | Option exercise | 15,000 | 35,000 | Form 4 |
| 2026-06-22 | Kooij Louise Frederika | officer | Option exercise | 25,000 | 43,134 | Form 4 |
| 2026-05-26 | Kooij Louise Frederika | officer | Option exercise | 60,000 | 84,353 | Form 4 |
| 2026-05-26 | Kooij Louise Frederika | officer | Option exercise | 5,000 | 89,353 | Form 4 |
| 2026-05-26 | Kooij Louise Frederika | officer | Option exercise | 5,000 | 68,134 | Form 4 |
| 2026-05-26 | Kooij Louise Frederika | officer | Option exercise | 60,000 | 80,015 | Form 4 |
| 2026-03-09 | LANGE LOUIS G | director | Exercise | 44,619 | 54,979 | Form 4 |
| 2026-03-09 | Kastelein Johannes Jacob Pieter | director | Option exercise | 101,409 | 520,229 | Form 4 |
| 2026-03-09 | LANGE LOUIS G | director | Exercise | 44,619 | 0 | Form 4 |
| 2026-03-09 | Kastelein Johannes Jacob Pieter | director | Option exercise | 101,409 | 170,711 | Form 4 |
| 2026-03-09 | Kastelein Johannes Jacob Pieter | director | Option exercise | 101,409 | 170,711 | Form 4 |
| 2026-03-06 | Kastelein Johannes Jacob Pieter | director | Option exercise | 94,124 | 621,638 | Form 4 |
| 2026-03-06 | Kastelein Johannes Jacob Pieter | director | Option exercise | 94,124 | 163,426 | Form 4 |
| 2026-03-06 | Kastelein Johannes Jacob Pieter | director | Option exercise | 94,124 | 163,426 | Form 4 |
| 2026-03-05 | Kastelein Johannes Jacob Pieter | director | Option exercise | 104,467 | 715,762 | Form 4 |
| 2026-03-05 | Kastelein Johannes Jacob Pieter | director | Option exercise | 104,467 | 173,769 | Form 4 |
| 2026-03-05 | Kastelein Johannes Jacob Pieter | director | Option exercise | 104,467 | 173,769 | Form 4 |
| 2026-03-02 | Davidson Michael H. | director | Option exercise | 443,707 | 239,267 | Form 4 |
| 2026-03-02 | Davidson Michael H. | director | Option exercise | 443,707 | 617,851 | Form 4 |
| 2026-03-02 | Davidson Michael H. | director | Option exercise | 443,707 | 617,851 | Form 4 |
| 2026-02-26 | Davidson Michael H. | director | Option exercise | 183,332 | 682,974 | Form 4 |
| 2026-02-26 | Davidson Michael H. | director | Option exercise | 183,332 | 643,191 | Form 4 |
| 2026-02-26 | Davidson Michael H. | director | Option exercise | 183,332 | 643,191 | Form 4 |
| 2026-02-25 | Davidson Michael H. | director | Option exercise | 58,253 | 866,306 | Form 4 |
| 2026-02-25 | Davidson Michael H. | director | Option exercise | 58,253 | 518,112 | Form 4 |
| 2026-02-25 | Davidson Michael H. | director | Option exercise | 58,253 | 518,112 | Form 4 |
| 2026-02-24 | Davidson Michael H. | director | Option exercise | 64,708 | 924,559 | Form 4 |
| 2026-02-24 | Davidson Michael H. | director | Option exercise | 64,708 | 524,567 | Form 4 |
| 2026-02-24 | Davidson Michael H. | director | Option exercise | 64,708 | 524,567 | 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.