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RARE
NASDAQ Life Sciences

Ultragenyx's Angelman Syndrome Drug Fails Phase 3, Stock Near 52-Week Low

Tom Rudovsky · Reported by Reuters
More coverage: Biotech Stocks · Healthcare
Sentiment info
Negative
Importance info
9
Price
$14.75
Mkt Cap
$2.616B
52W Low
$18.29
52W High
$39.89
52W Position info
19% below low
Off High info
63% below high
Rel. Volume info
1.0× avg
Market data snapshot near publication time

RARE is trading near its 52-week low of $18.29 (19% below the low).

Summary

Ultragenyx's Phase 3 Aspire trial for apazunersen in Angelman syndrome failed its primary and key secondary endpoints. This is a major setback for a key pipeline asset in a rare neurodevelopmental disorder with high unmet need. The stock is already trading near its 52-week low, and this failure removes a significant near-term catalyst. The company's recent FDA approval of GENGLYCOS for GSDIa provides some offset, but the Angelman program was a major growth driver. Investors will now focus on the UX111 PDUFA date of September 19 and any strategic updates on the Angelman franchise.

At the time of this announcement, RARE was trading at $14.75 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $2.6B. The 52-week trading range was $18.29 to $39.89. This news item was assessed with negative market sentiment and an importance score of 9 out of 10. Source: Reuters.


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RARE - Latest Insights

RARE
Sep 03, 2026, 9:10 AM EDT
Source: Benzinga
Importance Score:
7
Price at Filing: $14.83
Real-time Price: $14.34 info
Change: -$0.4824 (-3%) info
Market Cap: $1.41B info
RARE
Sep 03, 2026, 6:27 AM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $14.94
Real-time Price: $14.34 info
Change: -$0.5971 (-4%) info
Market Cap: $1.41B info
RARE
Sep 02, 2026, 5:13 PM EDT
Source: Dow Jones Newswires
Importance Score:
7
Price at Filing: $14.57
Real-time Price: $14.34 info
Change: -$0.2275 (-2%) info
Market Cap: $1.41B info
RARE
Sep 02, 2026, 4:04 PM EDT
Filing Type: 8-K
Importance Score:
9
Price at Filing: $14.37
Real-time Price: $14.34 info
Change: -$0.0287 (-0.20%) info
Market Cap: $1.41B info
RARE
Sep 01, 2026, 4:14 PM EDT
Source: Reuters
Importance Score:
7
Price at Filing: $25.97
Real-time Price: $14.34 info
Change: -$11.63 (-45%) info
Market Cap: $1.41B info