BMRNBioMarin Pharmaceutical Inc.Healthcare · Biotechnologyas of 2026-09-16
Horizon

Issued 2026-09-16 at $64.73 · now $64.73 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, BMRN has typically landed between $57.28 and $73.06 — a range of −11.5% to +12.9% from the issuance price $64.73.

Range of outcomes in historically similar periods — not a price prediction. Ranges are scored publicly on /methodology.
  • Actual close
  • Typical path (median)
  • Middle 50% of outcomes
  • 90% range

5,003 overlapping 1 month windows · 2006-09-22 – 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 ($64.73) — 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 BMRN has typically landed a month from the 2026-09-16 close of $64.73 — the range is history, not a prediction.

$57.28worst · -11.5%$73.06best · +12.9%
  • now $64.73 (+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). $64.57 (-0.2%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $61.13–$68.02
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $57.28–$73.06
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 5,003 windows spanning 2006-09-22 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.
StartReturnMax dropMax rise
3 worst
2009-02-05−48.0%−48.0%+1.0%
2009-02-09−47.9%−48.5%+0.0%
2009-02-03−47.2%−47.2%+2.2%
3 best
2007-12-07+44.2%+0.0%+44.2%
2007-11-26+43.2%+0.0%+43.2%
2007-12-04+42.2%+0.0%+42.2%

5,003 overlapping windows · 2006-09-22 – 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 ~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
60%
+1.4%
n=20
Feb
55%
−0.7%
n=20
Mar
40%
−0.5%
n=20
Apr
55%
−0.2%
n=20
May
50%
+0.6%
n=20
Jun
60%
+1.7%
n=20
Jul
70%
+5.0%
n=20
Aug
55%
−0.5%
n=20
Sep
40%
−1.4%
n=20
Oct
45%
−1.3%
n=20
Nov
85%
+5.8%
n=20
Dec
65%
+3.8%
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.

Share price & reported tradesMonthly open-market valueReporting lag — trade date to filing date2026-092026-082026-072026-062026-052026-042026-032026-022026-012025-122025-112025-102025-092025-08$70$502026-09-02: 1 insider sale, $1.2M — Davis George Eric2026-05-07: 1 insider sale, $177K — Friberg Gregory R2026-03-11: 1 insider sale, $997K — Guyer Charles Greg2026-02-26: 2 insider sales, $2.0M — Davis George Eric, Friberg Gregory R2026-02: 2 open-market sales, $2.0M2026-03: 1 open-market sale, $997K2026-05: 1 open-market sale, $177K2026-09: 1 open-market sale, $1.2M↑ buys↓ salesofficer Davis George Eric — Sale on 2026-09-02, filed 1 day after the tradeofficer Friberg Gregory R — Sale on 2026-05-07, filed 4 days after the tradeofficer Guyer Charles Greg — Sale on 2026-03-11, filed 1 day after the tradeofficer Davis George Eric — Sale on 2026-02-26, filed same dayofficer Friberg Gregory R — Sale on 2026-02-26, filed same day
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-09-02Davis George EricofficerSale17,557 @ $66.28$1.2M−22.3% of holdingnot yet — horizon still opennot yet — horizon still open61,003Form 4 · filed 1 day after the trade
2026-05-07Friberg Gregory RofficerSale3,281 @ $53.85$177K−6.0% of holding+3.4%not yet — horizon still open51,818Form 4 · filed 4 days after the trade
2026-03-11Guyer Charles GregofficerSale16,486 @ $60.46$997K−17.1% of holding−10.3%−4.0%79,953Form 4 · filed 1 day after the trade
2026-02-26Davis George EricofficerSale26,061 @ $61.36$1.6M−26.5% of holding−3.6%−5.6%72,453Form 4 · filed same day
2026-02-26Friberg Gregory RofficerSale6,326 @ $60.38$382K−14.4% of holding−3.6%−5.6%37,578Form 4 · filed same day
2025-05-20Burkhart ErinofficerSale1,786 @ $59.31$106K−11.2% of holding−8.8%−21.6%14,173Form 4 · filed same day
2025-05-02Hubbard CristinofficerSale273 @ $64.92$18K−0.8% of holding−13.6%−34.7%32,700Form 4 · filed 4 days after the trade
2025-03-19Burkhart ErinofficerSale1,295 @ $71.52$93K−7.1% of holding−10.1%−40.2%16,955Form 4 · filed 1 day after the trade
2025-03-06Guyer Charles GregofficerSale7,034 @ $71.28$501K−7.4% of holding−3.9%−32.6%87,655Form 4 · filed 1 day after the trade
2025-02-24Burkhart ErinofficerSale1,344 @ $68.38$92K−9.3% of holding+7.0%−23.5%13,105Form 4 · filed 1 day 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.

91 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.

DatePersonRoleActionSharesOwned afterFiling
2026-09-10Plenge Robert MdirectorAward / grant6,1406,140Form 4
2026-06-02Walbert Timothy PdirectorAward / grant7,49017,270Form 4
2026-06-02Countouriotis AthenadirectorAward / grant7,49021,040Form 4
2026-06-02ANDERSON ELIZABETH MdirectorAward / grant7,49041,940Form 4
2026-06-02HOMBACH ROBERT J.directorAward / grant7,49049,360Form 4
2026-06-02Ho MaykindirectorAward / grant7,49035,500Form 4
2026-06-02Bodem Barbara W.directorAward / grant7,49021,045Form 4
2026-06-02CLARK IAN TdirectorAward / grant7,49014,490Form 4
2026-06-02Dere Willard HdirectorAward / grant7,49046,440Form 4
2026-06-02Enyedy Mark JdirectorAward / grant7,49021,040Form 4
2026-05-20Hubbard CristinofficerWithheld for tax2,31842,472Form 4
2026-03-18Davis George EricofficerWithheld for tax1,27378,560Form 4
2026-03-17Hardy AlexanderdirectorWithheld for tax4,252214,635Form 4
2026-03-17Mueller BrianofficerWithheld for tax2,117123,314Form 4
2026-03-17Guyer Charles GregofficerWithheld for tax1,69384,140Form 4
2026-03-17Friberg Gregory RofficerWithheld for tax1,62955,099Form 4
2026-03-17Hubbard CristinofficerWithheld for tax1,24544,790Form 4
2026-03-16Davis George EricofficerWithheld for tax7,17765,263Form 4
2026-03-16Friberg Gregory RofficerAward / grant19,15056,728Form 4
2026-03-16Guyer Charles GregofficerAward / grant14,99085,833Form 4
2026-03-16Guyer Charles GregofficerAward / grant35,68035,680Form 4
2026-03-16Hardy AlexanderdirectorAward / grant62,440218,887Form 4
2026-03-16Hardy AlexanderdirectorAward / grant89,20089,200Form 4
2026-03-16Mueller BrianofficerAward / grant18,740125,431Form 4
2026-03-16Mueller BrianofficerAward / grant44,60044,600Form 4
2026-03-16Davis George EricofficerAward / grant14,57079,833Form 4
2026-03-16Davis George EricofficerAward / grant34,69034,690Form 4
2026-03-16Friberg Gregory RofficerAward / grant45,60045,600Form 4
2026-03-16Hubbard CristinofficerAward / grant36,68036,680Form 4
2026-03-16Hubbard CristinofficerAward / grant15,41046,035Form 4
2026-03-13Mueller BrianofficerWithheld for tax9,945106,691Form 4
2026-03-13Guyer Charles GregofficerWithheld for tax9,10970,843Form 4
2026-03-13Hardy AlexanderdirectorWithheld for tax2,941156,447Form 4
2026-02-25Mueller BrianofficerAward / grant6,683106,839Form 4
2026-02-25Mueller BrianofficerAward / grant7,230114,069Form 4
2026-02-25Mueller BrianofficerAward / grant2,569116,638Form 4
2026-02-25Davis George EricofficerAward / grant6,67596,142Form 4
2026-02-25Davis George EricofficerAward / grant2,37298,514Form 4
2026-02-25Davis George EricofficerAward / grant6,17789,467Form 4
2026-02-25Guyer Charles GregofficerAward / grant2,37196,439Form 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.