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Ultragenyx Pharmaceutical RARE · USD

Health Care · US listing · 🇺🇸 United States

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16.41

+6.35%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
BLACKROCK, INC.7.3m7.40%+668k31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC5.4m5.46%+5.4m31 Mar 2026
STATE STREET CORP5m5.09%+718.4k31 Mar 2026
AQR CAPITAL MANAGEMENT LLC4.6m4.64%+3.2m31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC4.2m4.25%+4.2m31 Mar 2026
RTW INVESTMENTS, LP3.6m3.70%+648.7k31 Mar 2026
SANDS CAPITAL MANAGEMENT, LLC3.2m3.26%−271.2k31 Mar 2026
SOFINNOVA INVESTMENTS, INC.3.1m3.19%+3.1m31 Mar 2026
WELLINGTON MANAGEMENT GROUP LLP2.6m2.68%+178.9k31 Mar 2026
BELLEVUE GROUP AG2.4m2.41%+2.4m31 Mar 2026
ASSENAGON ASSET MANAGEMENT S.A.2.3m2.29%+2.1m31 Mar 2026
TWO SIGMA INVESTMENTS, LP2.2m2.24%+1.8m31 Mar 2026
FRONTIER CAPITAL MANAGEMENT CO LLC2.2m2.22%+226.1k31 Mar 2026
CITADEL ADVISORS LLC2.1m2.15%−210.6k31 Mar 2026
GEODE CAPITAL MANAGEMENT, LLC1.8m1.88%+11.2k31 Mar 2026

Insider trades

Purchases and sales by directors and officers, as filed with the regulator

DateWhoTypeSharesPriceValue
1 Apr 2026 ↗Horn HowardChief Financial OfficerSale4.7k20.97$98,203
10 Mar 2026 ↗Parschauer Karah HerdmanEVP and Chief Legal OfficerSale3.5k22.67$79,526
6 Mar 2026 ↗Parschauer Karah HerdmanEVP and Chief Legal OfficerSale6k21.40$128,785
3 Mar 2026 ↗Horn HowardChief Financial OfficerSale1.6k22.40$36,624
2 Mar 2026 ↗Horn HowardChief Financial OfficerSale8.4k22.70$190,914
2 Mar 2026 ↗KAKKIS EMIL DPresident & CEOSale54.4k22.80$1.2m
2 Mar 2026 ↗Huizenga Theodore AlanSVP, Chief Accounting OfficerSale1.6k22.80$37,210
2 Mar 2026 ↗Crombez EricEVP and Chief Medical OfficerSale7k22.80$160,261
2 Mar 2026 ↗Parschauer Karah HerdmanEVP and Chief Legal OfficerSale8.1k22.80$185,478
2 Mar 2026 ↗Harris ErikEVP & Chief Commercial OfficerSale10.5k22.80$240,289
2 Mar 2026 ↗Pinion John RichardSee RemarksSale10k22.80$228,661

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

20.1m

-1.0% on the period before. 5.2 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

44.6%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 23 Sept 20261,600 shares
  • 17 Sept 20269,671 shares
  • 11 Sept 2026108 shares
  • 3 Sept 2026159,197 shares
  • 28 Aug 2026111 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.