RGNXREGENXBIO Inc.Healthcare · Biotechnologyas of 2026-08-13
Horizon

Issued 2026-08-13 at $10.91 · now $10.66 (2026-08-13, −2.3% since)

Based on its own history, a month from the 2026-08-13 close, RGNX has typically landed between $7.91 and $14.67 — a range of −27.5% to +34.5% from the issuance price $10.91.

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

2,721 overlapping 1 month windows · 2015-09-172026-07-15 · basis climatology · forecast (batch). Probability up 53.8% (90% CI 51.656.0%, ≈1,400 obs).

The cone is anchored at the 2026-08-13 issuance close ($10.91) — the price the forecast resolves against on 2026-09-11, 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 RGNX has typically landed a month from the 2026-08-13 close of $10.91 — the range is history, not a prediction.

$7.91worst · -27.5%$14.67best · +34.5%
  • now $10.66 (-2.3%)
  • 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). $10.62 (-2.7%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $9.43$11.81
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $7.91$14.67
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 2,721 windows spanning 2015-09-17 to 2026-08-13. 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
2020-02-18−59.8%−59.8%+1.1%
2020-02-13−53.3%−53.3%+0.0%
2020-02-19−52.6%−60.2%+0.0%
3 best
2026-06-08+155.3%+0.0%+155.3%
2026-06-05+150.5%+0.0%+150.5%
2026-06-03+121.7%−9.1%+121.7%

2,721 overlapping windows · 2015-09-172026-08-13 · not cherry-picked

Pending catalysts

  • September 2026Trial primary completion: Phase 2/Phase PHASE3 primary completion: AFFINITY DUCHENNE: RGX-202 Gene Therapy in Participants With Duchenne Muscular Dystrophy (DMD) (source, as of 2026-08-14)
  • 2028-04-30Trial primary completion: Phase 3 primary completion: RGX-121-3102 Gene Therapy in Participants With MPS II (Hunter Syndrome) (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 ~11 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
36%
−9.1%
n=11
Feb
27%
+0.1%
n=11
Mar
55%
+0.7%
n=11
Apr
64%
+3.9%
n=11
May
27%
−4.0%
n=11
Jun
64%
+10.8%
n=11
Jul
36%
−1.9%
n=11
Aug
45%
+2.5%
n=11
Sep
60%
+7.1%
n=10
Oct
36%
−6.1%
n=11
Nov
73%
+16.5%
n=11
Dec
36%
−5.1%
n=11

Up-frequency and average month-over-month return · historical frequency, not a prediction

Company insiders iOpen-market share purchases and sales by the company's own officers and directors, by filing date.

Last 90 days · as of 2026-08-13 · point-in-time by filing date

No insider transactions on record in the last 90 days.

Congressional disclosures

No congressional trades disclosed for this company.

Research tool, not investment advice — historical frequencies, not recommendations. Full terms.