On July 16, 2026, REGENXBIO Inc. reached its Offering. The result was a negative outcome, and the stock moved -8.7% in the window around the event. It had already run +84.0% in the 30 days into the catalyst — the kind of pre-event run-up that often precedes binary readouts.
The move
$12.27
1d before
$11.20
Event day
$9.89
1d after
$10.34
5d after
Our prediction vs. the result
CatalystAlert called this one neutral (+0.0% expected); the stock actually moved -8.7%. Model confidence at the time: 35%.
See the full scored track recordPre-catalyst setup
+84.0%
30-day run-up
11346%
30-day volatility
0.4×
volume spike