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RARE
NASDAQ Life Sciences

FDA Approves Ultragenyx Gene Therapy for Sanfilippo Syndrome

Tom Rudovsky · Reported by Seeking Alpha
More coverage: Biotech Stocks · Healthcare
Sentiment info
Positive
Importance info
9
Price
$14.542
Mkt Cap
$1.434B
52W Low
$12.73
52W High
$39.89
52W Position info
14% above low
Off High info
64% below high
Rel. Volume info
2.6× avg
Market data snapshot near publication time

RARE is trading near its 52-week low of $12.73 (14% above the low) on elevated volume (2.6× avg).

Summary

The FDA approved Ultragenyx's gene therapy UX111, also known as FAYUVI, for Sanfilippo syndrome type A, a rare and fatal pediatric neurodegenerative disorder. This is the company's second gene therapy approval in under a month, following GENGLYCOS for GSDIa in August. The approval validates Ultragenyx's gene therapy platform and opens a new commercial market, though the patient population is small. The company has not yet disclosed pricing or launch timing. This follows the recent failure of apazunersen in Angelman syndrome, making this approval a critical positive catalyst for the stock, which jumped on the news.

At the time of this announcement, RARE was trading at $14.54 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $1.4B. The 52-week trading range was $12.73 to $39.89. This news item was assessed with positive market sentiment and an importance score of 9 out of 10. Source: Seeking Alpha.


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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: $14.52 info
Change: -$0.305 (-2%) info
Market Cap: $1.432B info
RARE
Sep 03, 2026, 6:27 AM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $14.94
Real-time Price: $14.52 info
Change: -$0.4197 (-3%) info
Market Cap: $1.432B info
RARE
Sep 02, 2026, 5:13 PM EDT
Source: Dow Jones Newswires
Importance Score:
7
Price at Filing: $14.57
Real-time Price: $14.52 info
Change: -$0.0501 (-0.34%) info
Market Cap: $1.432B info
RARE
Sep 02, 2026, 4:06 PM EDT
Source: Reuters
Importance Score:
9
Price at Filing: $14.75
Real-time Price: $14.52 info
Change: -$0.230 (-2%) info
Market Cap: $1.432B info
RARE
Sep 02, 2026, 4:04 PM EDT
Filing Type: 8-K
Importance Score:
9
Price at Filing: $14.37
Real-time Price: $14.52 info
Change: +$0.1487 (+1%) info
Market Cap: $1.432B info