Issued 2026-09-25 at $117.83 · now $117.83 (2026-09-25, +0.0% since)
Based on its own history, a month from the 2026-09-25 close, INSM has typically landed between $97.19 and $146.84 — a range of −17.5% to +24.6% from the issuance price $117.83.
- Actual close
- Typical path (median)
- Middle 50% of outcomes
- 90% range
5,008 overlapping 1 month windows · 2006-09-26 – 2026-08-26 · basis climatology · forecast (batch). Base rate up 53.7% (90% CI 51.5–55.9%, ≈1,391 obs). Not a call on this stock — we have no evidence its odds differ.
The cone is anchored at the 2026-09-25 issuance close ($117.83) — the price the forecast resolves against on 2026-10-26, 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 INSM has typically landed a month from the 2026-09-25 close of $117.83 — the range is history, not a prediction.
- now $117.83 (+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). $118.51 (+0.6%)
- middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $108.33–$128.69
- 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $97.19–$146.84
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 5,008 windows spanning 2006-09-26 to 2026-09-25. 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 | |||
| 2011-07-08 | −71.7% | −71.7% | +0.0% |
| 2011-07-12 | −69.6% | −71.5% | +0.0% |
| 2011-07-11 | −68.2% | −71.1% | +1.5% |
| 3 best | |||
| 2024-05-24 | +204.3% | +0.0% | +216.9% |
| 2024-05-23 | +192.3% | −6.8% | +195.4% |
| 2024-05-22 | +188.5% | −8.9% | +188.5% |
5,008 overlapping windows · 2006-09-26 – 2026-09-25 · not cherry-picked
Pending catalysts
- 2026-12-31 — Trial primary completion: Phase 2/Phase PHASE3 primary completion: An Extension Study of Treprostinil Palmitil Inhalation Powder (TPIP) for Pulmonary Arterial Hypertension (PAH) (source, as of 2026-08-14)
- 2028-12-28 — Trial primary completion: Phase 3 primary completion: A Study to Evaluate the Efficacy and Safety of Once Daily Treprostinil Palmitil Inhalation Powder (TPIP) in Participants With Pulmonary Arterial Hypertension (PAH) (source, as of 2026-08-14)
- 2028-12-30 — Trial primary completion: Phase 3 primary completion: Efficacy and Safety Study of Treprostinil Palmitil Inhalation Powder (TPIP) in Participants With Pulmonary Hypertension Associated With Interstitial Lung Disease (PH-ILD) (source, as of 2026-08-14)
- 2031-01-22 — Trial primary completion: Phase 3 primary completion: An Open-Label Extension Study of Treprostinil Palmitil Inhalation Powder (TPIP) in Participants With Pulmonary Hypertension Associated With Interstitial Lung Disease (PH-ILD) (source, as of 2026-08-14)
Public, scheduled events — dated attention, not a prediction of the outcome. See the FDA catalysts page for the historical base rate.
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 ~20 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
45%
+4.6%
n=20
Feb
55%
+11.4%
n=20
Mar
40%
−2.0%
n=20
Apr
50%
+3.7%
n=20
May
35%
+3.3%
n=20
Jun
65%
+4.5%
n=20
Jul
50%
+3.2%
n=20
Aug
45%
−3.6%
n=20
Sep
60%
+10.7%
n=20
Oct
45%
−1.7%
n=20
Nov
75%
+10.7%
n=20
Dec
30%
−5.7%
n=20
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-09 | Brennan David R | director | Sale | 25,000 @ $124.00 | $3.1M | −38.9% of holding | not yet — horizon still open | not yet — horizon still open | 39,238 | Form 4 · filed 2 days after the trade |
| 2026-08-17 | SHAROKY MELVIN MD | director | Sale | 5,000 @ $127.53 | $638K | −100.0% of holding | −1.8% | not yet — horizon still open | 0 | Form 4 · filed 2 days after the trade |
| 2026-08-10 | Adsett Roger | director | Sale | 239,850 @ $133.27 | $32.0M | −70.8% of holding | −3.0% | not yet — horizon still open | 98,744 | Form 4 · filed 2 days after the trade |
| 2026-08-06 | Flammer Martina M.D. | officer | Sale | 18,278 @ $129.40 | $2.4M | −23.2% of holding | −4.9% | not yet — horizon still open | 60,486 | Form 4 · filed 1 day after the trade |
| 2026-08-06 | Flammer Martina M.D. | officer | Sale | 8,895 @ $127.00 | $1.1M | −10.1% of holding | −4.9% | not yet — horizon still open | 78,764 | Form 4 · filed 1 day after the trade |
| 2026-07-23 | Lewis William | director | Sale | 5,872 @ $106.43 | $625K | −2.2% of holding | +13.4% | not yet — horizon still open | 259,058 | Form 4 · filed 1 day after the trade |
| 2026-07-23 | Lewis William | director | Sale | 4,828 @ $105.62 | $510K | −1.8% of holding | +13.4% | not yet — horizon still open | 264,930 | Form 4 · filed 1 day after the trade |
| 2026-07-09 | Lewis William | director | Sale | 5,005 @ $116.55 | $583K | −1.9% of holding | +8.0% | not yet — horizon still open | 264,752 | Form 4 · filed 1 day after the trade |
| 2026-07-09 | Lewis William | director | Sale | 3,359 @ $118.52 | $398K | −1.3% of holding | +8.0% | not yet — horizon still open | 259,058 | Form 4 · filed 1 day after the trade |
| 2026-07-09 | Lewis William | director | Sale | 2,335 @ $117.62 | $275K | −0.9% of holding | +8.0% | not yet — horizon still open | 262,417 | Form 4 · filed 1 day after the trade |
| 2026-07-06 | Flammer Martina M.D. | officer | Sale | 7,448 @ $110.60 | $824K | −11.0% of holding | −14.1% | not yet — horizon still open | 60,486 | Form 4 · filed 2 days after the trade |
| 2026-07-06 | Flammer Martina M.D. | officer | Sale | 4,854 @ $109.02 | $529K | −6.7% of holding | −14.1% | not yet — horizon still open | 67,934 | Form 4 · filed 2 days after the trade |
| 2026-06-25 | Lewis William | director | Sale | 12,091 @ $102.34 | $1.2M | −4.3% of holding | −0.4% | not yet — horizon still open | 268,224 | Form 4 · filed 1 day after the trade |
| 2026-06-25 | Lewis William | director | Sale | 3,723 @ $104.28 | $388K | −1.4% of holding | −0.4% | not yet — horizon still open | 262,665 | Form 4 · filed 1 day after the trade |
| 2026-06-25 | Lewis William | director | Sale | 2,456 @ $105.27 | $259K | −0.9% of holding | −0.4% | not yet — horizon still open | 260,209 | Form 4 · filed 1 day after the trade |
| 2026-06-25 | Lewis William | director | Sale | 1,836 @ $103.10 | $189K | −0.7% of holding | −0.4% | not yet — horizon still open | 266,388 | Form 4 · filed 1 day after the trade |
| 2026-06-25 | Lewis William | director | Sale | 1,292 @ $106.27 | $137K | −0.5% of holding | −0.4% | not yet — horizon still open | 258,917 | Form 4 · filed 1 day after the trade |
| 2026-06-22 | Smith Michael Alexander | officer | Sale | 1,806 @ $95.82 | $173K | −4.6% of holding | +7.7% | not yet — horizon still open | 37,648 | Form 4 · filed 2 days after the trade |
| 2026-06-08 | Lewis William | director | Sale | 6,515 @ $94.03 | $613K | −2.5% of holding | +23.6% | not yet — horizon still open | 258,917 | Form 4 · filed 2 days after the trade |
| 2026-06-05 | Flammer Martina M.D. | officer | Sale | 1,858 @ $103.78 | $193K | −3.0% of holding | +22.4% | not yet — horizon still open | 60,486 | Form 4 · filed same day |
| 2026-06-03 | Lewis William | director | Sale | 7,605 @ $102.27 | $778K | −2.8% of holding | +7.5% | not yet — horizon still open | 265,432 | Form 4 · filed 2 days after the trade |
| 2026-06-03 | Flammer Martina M.D. | officer | Sale | 2,566 @ $102.27 | $262K | −4.0% of holding | +7.5% | not yet — horizon still open | 62,344 | Form 4 · filed 2 days after the trade |
| 2026-06-03 | Bonstein Sara | director | Sale | 2,404 @ $102.27 | $246K | −3.4% of holding | +7.5% | not yet — horizon still open | 69,082 | Form 4 · filed 2 days after the trade |
| 2026-06-03 | Adsett Roger | director | Sale | 2,370 @ $102.27 | $242K | −2.3% of holding | +7.5% | not yet — horizon still open | 98,603 | Form 4 · filed 2 days after the trade |
| 2026-06-03 | Smith Michael Alexander | officer | Sale | 2,159 @ $102.27 | $221K | −5.2% of holding | +7.5% | not yet — horizon still open | 39,454 | Form 4 · filed 2 days after the trade |
| 2026-05-22 | Smith Michael Alexander | officer | Sale | 6,149 @ $108.47 | $667K | −12.9% of holding | −1.2% | not yet — horizon still open | 41,613 | Form 4 · filed same day |
| 2026-05-18 | Lewis William | director | Sale | 11,836 @ $106.39 | $1.3M | −4.0% of holding | −8.4% | not yet — horizon still open | 281,012 | Form 4 · filed 2 days after the trade |
| 2026-05-18 | Lewis William | director | Sale | 7,975 @ $106.97 | $853K | −2.8% of holding | −8.4% | not yet — horizon still open | 273,037 | Form 4 · filed 2 days after the trade |
| 2026-05-18 | Lewis William | director | Sale | 5,753 @ $105.32 | $606K | −1.9% of holding | −8.4% | not yet — horizon still open | 292,848 | Form 4 · filed 2 days after the trade |
| 2026-05-14 | Flammer Martina M.D. | officer | Sale | 10,479 @ $117.54 | $1.2M | −13.9% of holding | −16.6% | not yet — horizon still open | 64,910 | Form 4 · filed 1 day after the trade |
| 2026-05-13 | Lewis William | director | Sale | 13,283 @ $116.18 | $1.5M | −4.4% of holding | −17.0% | not yet — horizon still open | 287,902 | Form 4 · filed 2 days after the trade |
| 2026-05-13 | Bonstein Sara | director | Sale | 8,272 @ $116.18 | $961K | −10.4% of holding | −17.0% | not yet — horizon still open | 71,486 | Form 4 · filed 2 days after the trade |
| 2026-05-13 | Adsett Roger | director | Sale | 5,837 @ $116.18 | $678K | −5.5% of holding | −17.0% | not yet — horizon still open | 100,973 | Form 4 · filed 2 days after the trade |
| 2026-05-13 | Flammer Martina M.D. | officer | Sale | 4,470 @ $112.76 | $504K | −5.4% of holding | −17.0% | not yet — horizon still open | 78,773 | Form 4 · filed 2 days after the trade |
| 2026-05-13 | Smith Michael Alexander | officer | Sale | 4,109 @ $116.18 | $477K | −7.9% of holding | −17.0% | not yet — horizon still open | 47,762 | Form 4 · filed 2 days after the trade |
| 2026-05-13 | Flammer Martina M.D. | officer | Sale | 3,384 @ $116.18 | $393K | −4.3% of holding | −17.0% | not yet — horizon still open | 75,389 | Form 4 · filed 2 days after the trade |
| 2026-05-11 | Flammer Martina M.D. | officer | Sale | 12,119 @ $100.35 | $1.2M | −12.6% of holding | −9.7% | not yet — horizon still open | 84,073 | Form 4 · filed 2 days after the trade |
| 2026-05-11 | Flammer Martina M.D. | officer | Sale | 830 @ $101.18 | $84K | −1.0% of holding | −9.7% | not yet — horizon still open | 83,243 | Form 4 · filed 2 days after the trade |
| 2026-05-04 | Lewis William | director | Sale | 5,318 @ $137.01 | $729K | −1.7% of holding | −30.9% | not yet — horizon still open | 305,534 | Form 4 · filed 2 days after the trade |
| 2026-05-04 | Lewis William | director | Sale | 2,721 @ $137.86 | $375K | −0.9% of holding | −30.9% | not yet — horizon still open | 302,813 | Form 4 · filed 2 days after the trade |
| 2026-05-04 | Lewis William | director | Sale | 1,247 @ $139.09 | $173K | −0.4% of holding | −30.9% | not yet — horizon still open | 301,566 | Form 4 · filed 2 days after the trade |
| 2026-05-04 | Lewis William | director | Sale | 599 @ $135.18 | $81K | −0.2% of holding | −30.9% | not yet — horizon still open | 310,852 | Form 4 · filed 2 days after the trade |
| 2026-05-04 | Lewis William | director | Sale | 433 @ $134.18 | $58K | −0.1% of holding | −30.9% | not yet — horizon still open | 311,451 | Form 4 · filed 2 days after the trade |
| 2026-05-04 | Lewis William | director | Sale | 381 @ $139.60 | $53K | −0.1% of holding | −30.9% | not yet — horizon still open | 301,185 | Form 4 · filed 2 days after the trade |
| 2026-04-16 | Lewis William | director | Sale | 5,373 @ $143.81 | $773K | −1.7% of holding | −28.9% | not yet — horizon still open | 304,265 | Form 4 · filed 1 day after the trade |
| 2026-04-16 | Lewis William | director | Sale | 2,255 @ $144.66 | $326K | −0.7% of holding | −28.9% | not yet — horizon still open | 302,010 | Form 4 · filed 1 day after the trade |
| 2026-04-16 | Lewis William | director | Sale | 2,246 @ $142.99 | $321K | −0.7% of holding | −28.9% | not yet — horizon still open | 309,638 | Form 4 · filed 1 day after the trade |
| 2026-04-16 | Lewis William | director | Sale | 825 @ $145.79 | $120K | −0.3% of holding | −28.9% | not yet — horizon still open | 301,185 | Form 4 · filed 1 day after the trade |
| 2026-04-06 | Lewis William | director | Sale | 8,478 @ $163.23 | $1.4M | −2.7% of holding | −24.7% | not yet — horizon still open | 302,619 | Form 4 · filed 2 days after the trade |
| 2026-04-06 | Lewis William | director | Sale | 1,434 @ $164.01 | $235K | −0.5% of holding | −24.7% | not yet — horizon still open | 301,185 | Form 4 · filed 2 days after the trade |
| 2026-04-06 | Lewis William | director | Sale | 787 @ $161.73 | $127K | −0.3% of holding | −24.7% | not yet — horizon still open | 311,097 | Form 4 · filed 2 days after the trade |
| 2026-04-01 | Adsett Roger | director | Sale | 62,344 @ $164.95 | $10.3M | −36.9% of holding | −29.2% | not yet — horizon still open | 106,810 | Form 4 · filed 2 days after the trade |
| 2026-04-01 | Adsett Roger | director | Sale | 19,001 @ $164.11 | $3.1M | −10.1% of holding | −29.2% | not yet — horizon still open | 169,154 | Form 4 · filed 2 days after the trade |
| 2026-04-01 | Adsett Roger | director | Sale | 6,715 @ $163.18 | $1.1M | −3.4% of holding | −29.2% | not yet — horizon still open | 188,155 | Form 4 · filed 2 days after the trade |
| 2026-03-30 | Smith Michael Alexander | officer | Sale | 19,638 @ $150.98 | $3.0M | −27.5% of holding | −24.5% | not yet — horizon still open | 51,871 | Form 4 · filed 1 day after the trade |
| 2026-03-19 | Lewis William | director | Sale | 4,533 @ $144.11 | $653K | −1.5% of holding | −8.5% | −32.7% | 301,185 | Form 4 · filed 1 day after the trade |
| 2026-03-19 | Lewis William | director | Sale | 4,537 @ $143.42 | $651K | −1.5% of holding | −8.5% | −32.7% | 305,718 | Form 4 · filed 1 day after the trade |
| 2026-03-19 | Lewis William | director | Sale | 1,629 @ $142.17 | $232K | −0.5% of holding | −8.5% | −32.7% | 310,255 | Form 4 · filed 1 day after the trade |
| 2026-03-05 | Lewis William | director | Sale | 3,899 @ $146.66 | $572K | −1.3% of holding | +17.1% | −25.8% | 303,313 | Form 4 · filed same day |
| 2026-03-05 | Lewis William | director | Sale | 2,589 @ $145.27 | $376K | −0.8% of holding | +17.1% | −25.8% | 307,212 | Form 4 · filed same day |
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.
145 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 |
|---|---|---|---|---|---|---|
| 2026-08-10 | Adsett Roger | director | Option exercise | 80,970 | 338,594 | Form 4 |
| 2026-08-10 | Adsett Roger | director | Option exercise | 76,600 | 257,624 | Form 4 |
| 2026-08-10 | Adsett Roger | director | Option exercise | 82,280 | 181,024 | Form 4 |
| 2026-08-10 | Adsett Roger | director | Option exercise | 76,600 | 0 | Form 4 |
| 2026-08-10 | Adsett Roger | director | Option exercise | 82,280 | 0 | Form 4 |
| 2026-08-10 | Adsett Roger | director | Option exercise | 80,970 | 0 | Form 4 |
| 2026-08-06 | Flammer Martina M.D. | officer | Option exercise | 18,278 | 78,764 | Form 4 |
| 2026-08-06 | Flammer Martina M.D. | officer | Option exercise | 8,895 | 87,659 | Form 4 |
| 2026-08-06 | Flammer Martina M.D. | officer | Option exercise | 8,895 | 35,580 | Form 4 |
| 2026-08-06 | Flammer Martina M.D. | officer | Option exercise | 18,278 | 36,555 | Form 4 |
| 2026-07-23 | Lewis William | director | Option exercise | 6,260 | 265,318 | Form 4 |
| 2026-07-23 | Lewis William | director | Option exercise | 4,440 | 269,758 | Form 4 |
| 2026-07-23 | Lewis William | director | Option exercise | 6,260 | 0 | Form 4 |
| 2026-07-23 | Lewis William | director | Option exercise | 4,440 | 0 | Form 4 |
| 2026-07-09 | Lewis William | director | Option exercise | 6,259 | 265,317 | Form 4 |
| 2026-07-09 | Lewis William | director | Option exercise | 4,440 | 269,757 | Form 4 |
| 2026-07-09 | Lewis William | director | Option exercise | 4,440 | 4,440 | Form 4 |
| 2026-07-09 | Lewis William | director | Option exercise | 6,259 | 6,260 | Form 4 |
| 2026-07-06 | Flammer Martina M.D. | officer | Option exercise | 7,945 | 68,431 | Form 4 |
| 2026-07-06 | Flammer Martina M.D. | officer | Option exercise | 4,357 | 72,788 | Form 4 |
| 2026-07-06 | Flammer Martina M.D. | officer | Option exercise | 4,357 | 4,358 | Form 4 |
| 2026-07-06 | Flammer Martina M.D. | officer | Option exercise | 7,945 | 23,835 | Form 4 |
| 2026-06-25 | Lewis William | director | Option exercise | 12,518 | 271,435 | Form 4 |
| 2026-06-25 | Lewis William | director | Option exercise | 8,880 | 280,315 | Form 4 |
| 2026-06-25 | Lewis William | director | Option exercise | 8,880 | 8,880 | Form 4 |
| 2026-06-25 | Lewis William | director | Option exercise | 12,518 | 12,519 | Form 4 |
| 2026-06-23 | Butera Samuele | officer | Award / grant | 12,570 | 12,570 | Form 4 |
| 2026-06-23 | Butera Samuele | officer | Award / grant | 7,342 | 7,342 | Form 4 |
| 2026-06-23 | Butera Samuele | officer | Award / grant | 7,342 | 7,342 | Form 4 |
| 2026-05-18 | Lewis William | director | Option exercise | 6,259 | 294,161 | Form 4 |
| 2026-05-18 | Lewis William | director | Option exercise | 4,440 | 298,601 | Form 4 |
| 2026-05-18 | Lewis William | director | Option exercise | 4,440 | 17,760 | Form 4 |
| 2026-05-18 | Lewis William | director | Option exercise | 6,259 | 25,037 | Form 4 |
| 2026-05-13 | Brennan David R | director | Award / grant | 3,305 | 64,238 | Form 4 |
| 2026-05-13 | Desjardins Clarissa | director | Award / grant | 3,305 | 70,312 | Form 4 |
| 2026-05-13 | ANDERSON ELIZABETH M | director | Award / grant | 3,305 | 62,034 | Form 4 |
| 2026-05-13 | Brennan David R | director | Award / grant | 3,305 | 64,238 | Form 4 |
| 2026-05-13 | ANDERSON ELIZABETH M | director | Award / grant | 3,305 | 62,034 | Form 4 |
| 2026-05-13 | LEE LEO | director | Award / grant | 3,305 | 57,971 | Form 4 |
| 2026-05-13 | SCHAFER CAROL | director | Award / grant | 3,305 | 66,622 | 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.