Ultragenyx Pharmaceutical Inc. is a biopharmaceutical company that identifies, acquires, develops, and commercializes novel products for rare and ultra-rare genetic diseases. It operates in North America, Latin America, Europe, the Middle East, Africa, and the Asia-Pacific. Its biologic products include Crysvita (burosumab) for X-linked hypophosphatemia and tumor-induced osteomalacia, Mepsevii for Mucopolysaccharidosis VII, Dojolvi for long-chain fatty acid oxidation disorders, and Evkeeza (evinacumab) for homozygous familial hypercholesterolemia. Phase 3 product candidates include UX143 for osteogenesis imperfecta, UX111 for Sanfilippo syndrome type A (MPS IIIA), DTX401 for glycogen storage disease type Ia, DTX301 for ornithine transcarbamylase deficiency, and GTX-102 for Angelman syndrome. The company also develops UX701, an AAV9 gene therapy in Phase 2 for Wilson liver disease. It has collaboration and license agreements with Kyowa Kirin, Saint Louis University, Baylor Research Institute, REGENXBIO, GeneTx, Mereo, the University of Pennsylvania, Regeneron, and Abeona. Ultragenyx was incorporated in 2010 and is headquartered in Novato, California.
Andelyn Begins Commercial Manufacturing of Ultragenyx's FDA-Approved FAYUVI Gene Therapy
Andelyn Biosciences announced it is now manufacturing FAYUVI, Ultragenyx Pharmaceutical Inc.'s FDA-approved gene therapy for Sanfilippo syndrome type A, also known as mucopolysaccharidosis type IIIA, for commercial supply at its Columbus, Ohio facility. The move follows the U.S. Food and Drug Administration's approval of FAYUVI, making it the first FDA-approved gene therapy manufactured using the Andelyn AAV Curator Platform process. Sanfilippo syndrome type A is a rare, fatal lysosomal storage disease that primarily affects the central nervous system and is marked by rapid neurodegeneration beginning in early childhood; it is estimated to affect 3,000 to 5,000 patients worldwide, with a median life expectancy of 15 years. Andelyn Chief Executive Officer Wade Macedone said the company is proud to manufacture an FDA-approved gene therapy for commercial use using an AAV Curator Platform process, calling the milestone a reflection of the purpose behind Andelyn's founding. Andelyn, a full-service FDA-inspected cell and gene therapy commercial CDMO with more than 20 years of experience, has produced clinical and commercial material for more than 500 cGMP batches and 85 global clinical trials.
FDA Fully Approves Ultragenyx's Fayuvi for Sanfilippo Syndrome Type A
The FDA has granted full approval to Ultragenyx's Fayuvi, also known as UX111, for treating the neurologic manifestations of mucopolysaccharidosis type IIIA, or Sanfilippo syndrome Type A, in pediatric patients with preserved neurodevelopmental function. The approval makes Fayuvi the first FDA-approved treatment for this rare and fatal neurodegenerative disorder and marks Ultragenyx's second gene therapy approval and sixth FDA approval overall. The decision was supported by nearly eight years of clinical data, including a 23.5-point higher mean change in Bayley-III Cognitive raw score versus an untreated natural-history cohort. Ultragenyx shares ended the last trading session 12.6% higher at $14.5 on above-average volume, though the stock has lost 50.9% over the past four weeks. The company is expected to post a quarterly loss of $0.65 per share, a year-over-year change of +64.1%, on revenues of $185.2 million, up 15.8% from the year-ago quarter, with its consensus EPS estimate revised 6.4% higher over the last 30 days.
Ultragenyx Shares Plunge 40% After Angelman Trial Failure
Ultragenyx Pharmaceutical announced that its Phase 3 Aspire trial of apazunersen (GTX-102) in Angelman syndrome failed to meet its primary and key secondary cognitive and functional endpoints, prompting a review of the program and planned significant expense reductions. The company's stock fell 40.3% following the news. On the same day, the FDA confirmed that Ultragenyx's newly approved GENGLYCOS gene therapy for glycogen storage disease type Ia qualifies for a rare pediatric disease priority review voucher, highlighting a contrast between a major pipeline setback and progress in its commercial gene therapy portfolio. The company's narrative projects $1.2 billion revenue and $43.8 million earnings by 2029, with a fair value estimate of $27.00, implying a 76% upside to its current price. However, the failure raises questions about execution and the concentration of value in a few late-stage programs.
Ultragenyx plunges 46% on trial failure, multiple downgrades
Ultragenyx Pharmaceutical plunged more than 46% to an all-time low on Thursday after its Phase 3 Aspire study for apazunersen, an experimental Angelman syndrome therapy, failed to meet the primary endpoint. The Novato, California-based biopharma said it will review future operations, including R&D plans for the drug. In response, RBC Capital Markets downgraded the stock to Sector Perform from Outperform and cut its price target to $19 from $40, while Baird downgraded to Neutral from Outperform, and Bank of America downgraded to Neutral from Buy with a target cut to $20 from $48. Analysts noted the lack of numerical data and suspected the trial was a complete miss, though Ultragenyx's commercial operations provide some valuation floor.
Snowflake Surges 24% on Strong Results, Lifting Software Peers
Snowflake shares surged 24% in premarket trading after its second-quarter results beat analyst expectations, with adjusted earnings of 62 cents per share on revenue of $1.55 billion, surpassing the LSEG consensus of 45 cents and $1.48 billion, and the company raised its full-year product revenue guidance. The rally lifted software peers, with Datadog jumping over 5%, ServiceNow up 3%, and Salesforce rising 1.5%. In other moves, Hewlett Packard Enterprise slipped 3% after forecasting earnings growth of 16% to 20% for fiscal 2027, below the FactSet consensus of 18.7%, while Broadcom lost 2.5% as its fourth-quarter revenue forecast of $34.8 billion missed the $35.03 billion estimate. Campbell's Company fell nearly 7% on weak fiscal 2027 guidance, and Ultragenyx Pharmaceutical plunged over 46% after its Angelman syndrome drug failed a Phase 3 trial. On the upside, Petco jumped almost 9% on better-than-expected margins, Argan popped 7.5% on strong earnings, Five Below rose 4.5% on a beat, and Netskope gained 12% on upbeat revenue guidance, while Victoria's Secret sank over 18% on a revenue miss and NetApp shed 8% on soft deferred revenue.
Ultragenyx Publishes 96-Week Data Showing GENGLYCOS Reduces Cornstarch Intake in GSDIa
Ultragenyx Pharmaceutical Inc. announced the publication of 96-week data from its Phase 3 study of GENGLYCOS AAV gene therapy for glycogen storage disease type Ia in The Journal of Inherited Metabolic Disease, showing that participants achieved a mean reduction in daily cornstarch intake of 61% while maintaining glycemic control. The study met its primary endpoint at Week 48, with DTX401-treated patients experiencing a 41% reduction in cornstarch compared to 10% for placebo, and by Week 96, 67% of participants in both the original and crossover groups eliminated at least one nighttime cornstarch dose, with 33% and 42% respectively eliminating nighttime dosing entirely. Patient-reported outcomes showed that 83% of DTX401-treated participants met or exceeded their own expectations for meaningful cornstarch reduction at Week 48, and the therapy was generally well tolerated with an acceptable safety profile. GENGLYCOS was recently approved by the FDA for patients ages eight and older with GSDIa.
FDA Approves Ultragenyx's Genglycos Gene Therapy for GSDIa
The FDA approved Ultragenyx Pharmaceutical's Genglycos, the first gene therapy for glycogen storage disease type Ia, sending shares up 7.5% in after-hours trading. The one-time treatment will carry a U.S. list price of approximately $2.7 million per patient and is expected to become available through qualified treatment centers within 30 to 60 days. Ultragenyx estimates the disorder affects only 1,500 to 2,500 Americans, and the company must now prove it can diagnose, secure reimbursement for, and treat enough patients to generate meaningful revenue. In the Phase 3 GlucoGene trial, Genglycos reduced mean daily cornstarch intake by 41% at Week 48 compared with 10% for placebo, and longer-term data showed a 61% reduction at Week 96. The FDA has required two years of additional safety and efficacy data, and Ultragenyx will manufacture the therapy at its Bedford, Massachusetts facility.
Deere jumps on upbeat Q3, Wolfspeed plunges on wider loss
U.S. stock futures were little changed on Thursday as investors assessed a fresh batch of corporate earnings and analyst actions. CrowdStrike shares fell 2.8% in premarket trading after Bloomberg reported that the cybersecurity company's chief technology officer is departing to launch an artificial intelligence-focused cybersecurity fund. Advance Auto Parts stock plunged 15.9% after its second-quarter results revealed a significant difference between headline earnings and underlying performance, with about $0.31 of the reported $1.03 adjusted diluted earnings per share coming from one-time tariff refunds. Deere shares jumped 5.1% after the agricultural and construction equipment maker delivered a stronger-than-expected fiscal third quarter, with diluted earnings per share of $5.10 and net sales of about $11 billion. Etsy gained 3.9% in premarket trading after BofA Securities upgraded the online marketplace to Buy from Neutral and raised its price target to $105 from $88. Ultragenyx surged 11.1% after the U.S. Food and Drug Administration granted accelerated approval to GENGLYCOS, also known as DTX401, a gene therapy for glycogen storage disease type Ia in patients aged eight and older. Moderna shares fell 13% in premarket trading, retreating after more than doubling in the previous session following the company's major cancer-vaccine trial announcement with Merck. Wolfspeed plunged 10.5% after the semiconductor company reported a sharply wider-than-expected fiscal fourth-quarter loss, with an adjusted loss of $2.26 per share and revenue of $149.6 million. Webull rose 13.8% after the digital brokerage reported its strongest quarterly results since going public, with second-quarter revenue of $198.8 million and adjusted earnings of $0.05 per share.
Webull, Ultragenyx lead gainers; Wolfspeed, Coty slide
Stock futures were lower early Thursday as persistent geopolitical tensions in the Middle East drove Brent crude over $92 a barrel, reinforcing broader inflation concerns. Webull shares climbed 14% after the digital investment platform reported record Q2 revenue of $198.8M, up 51% Y/Y and 24% Q/Q, beating estimates of $180.7M, while Ultragenyx Pharmaceutical surged 12% after the FDA granted accelerated approval to Genglycos, its gene therapy for glycogen storage disease type Ia. Circle Internet Group gained 5% alongside a broader rally in crypto-linked stocks as Bitcoin climbed more than 9% to around $71K, its highest level since June 2, following the U.S. Treasury's surprise decision to double planned buybacks of longer-dated Treasuries to at least $4B per operation. Wolfspeed plunged 10% after reporting a wider-than-expected FQ4 adjusted loss of $2.26 per share, versus the $1.47 consensus, while revenue rose 24% Y/Y to $149.6M, and Coty tumbled 9% after mixed FQ4 results with LFL revenue down 1% and adjusted operating income plunging 31%.
Ultragenyx Q2 revenue rises to $214 million, net loss narrows to $92 million
Ultragenyx Pharmaceutical reported second-quarter revenue of US$214 million, up from US$167 million a year earlier, while its quarterly net loss narrowed to US$92 million from US$115 million. Basic loss per share from continuing operations improved to US$0.90 from US$1.17. For the first half, revenue reached US$350 million versus US$306 million, though the six-month net loss widened to US$277 million from US$266 million. The FDA has accepted the UX111 BLA with a PDUFA date of September 19, 2026, a key near-term catalyst.
Ultragenyx sets August 4 call for second quarter 2026 results
Ultragenyx Pharmaceutical will host a conference call at 5:00 p.m. Eastern Time on Tuesday, August 4, 2026, to discuss its financial results and corporate update for the quarter ending June 30, 2026. The live and replayed webcast will be available through the company’s website, with the replay accessible for three months.
Ultragenyx grants 65,886 restricted stock units to 39 new non-executive hires
Ultragenyx Pharmaceutical granted 65,886 restricted stock units to 39 newly hired non-executive officers under its Employment Inducement Plan. The awards, approved by the compensation committee with a grant date of July 16, 2026, vest over four years with 25% of the underlying shares vesting on each anniversary of the grant date, subject to continued employment. The grants were made as an inducement material to the new employees entering into employment in accordance with Nasdaq Listing Rule 5635(c)(4).
Johnson Fistel Investigates Ultragenyx Officers Over Setrusumab Disclosures
Johnson Fistel, PLLP is investigating potential claims on behalf of long-term shareholders of Ultragenyx Pharmaceutical Inc. against certain officers and directors for alleged breaches of fiduciary duty. Shareholders who have held Ultragenyx shares continuously since prior to August 3, 2023, may have standing to seek corporate governance reforms, the return of funds, and a court-approved incentive award at no cost. The investigation follows a previously filed securities class action alleging that Ultragenyx and certain executives made materially false and misleading statements about setrusumab and the Phase III ORBIT study in patients with osteogenesis imperfecta, creating a false impression of reliable information while minimizing the risk that the study would fail to achieve a statistically significant reduction in annualized fracture rate. The complaint further alleges that the company's optimism was misplaced because the threshold figures were based on Phase II results lacking a placebo control group.
Ultragenyx shares surged 5.2% in the last trading session to close at $30.77, driven by higher-than-usual trading volume. The stock has gained 25.8% over the past four weeks, fueled by investor optimism around its growing portfolio of marketed rare disease therapies and a promising late-stage pipeline. Key products Crysvita, Dojolvi, and Mepsevii continue to drive revenue growth, while upcoming catalysts include an FDA decision on DTX401 for glycogen storage disease type Ia expected in August 2026, positive late-stage data for DTX301 in OTC deficiency, and readouts for UX701 in Wilson disease and GTX-102 in Angelman syndrome in 2026. The company is expected to report a quarterly loss of $1.25 per share on revenues of $185.77 million. Analysts have kept consensus estimates unchanged over the past 30 days, and the stock carries a Zacks Rank of 3, or Hold.