울트라제닉스제약(주)
US ˙ NasdaqGS ˙ US90400D1081

SecurityRARE / Ultragenyx Pharmaceutical Inc.
InstitutionShell Asset Management Co
Latest Disclosed Ownership529 shares
Latest Disclosed Value $ 16
Shell Asset Management Co reports 63.59% decrease in ownership of RARE / Ultragenyx Pharmaceutical Inc.

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 529 shares of Ultragenyx Pharmaceutical Inc. (US:RARE) valued at $15,912 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 1,453 shares of Ultragenyx Pharmaceutical Inc.. The current value of the position is $11,590 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2025-11-07 2025-09-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 529 -924 -63.59 0 0.0016
2025-07-23 2025-06-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 1,453 -694 -32.32 0 0.0018
2025-05-14 2025-03-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 2,147 -93 -4.15 0 0.0037
2025-02-14 2024-12-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 2,240 -15 -0.67 0 0.0041
2024-11-07 2024-09-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 2,255 -131 -5.49 0 0.0055
2024-07-25 2024-03-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 2,386 -247 -9.38 0 0.0045
2024-02-14 2023-12-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 2,633 -792 -23.12 0 0.0058
2023-11-08 2023-09-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 3,425 -54 -1.55 0 0.0050
2023-07-28 2023-06-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 3,479 -20 -0.57 0 0.0063
2023-05-15 2023-03-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 3,499 -12 -0.34 0 0.0058
2023-02-07 2022-12-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 3,511 -713 -16.88 0 -100.00 0.0071
2022-11-14 2022-09-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 4,224 -1,105 -20.74 175 -44.97 0.0068
2022-08-09 2022-06-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 5,329 8 0.15 318 -17.62 0.0094
2022-05-04 2022-03-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 5,321 -787 -12.88 386 -24.90 0.0091
2022-02-09 2021-12-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 6,108 21 0.34 514 -6.38 0.0105
2021-11-04 2021-09-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 6,087 -260 -4.10 549 -9.26 0.0123
2021-08-12 2021-06-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 6,347 340 5.66 605 -11.55 0.0117
2021-05-10 2021-03-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 6,007 1,840 44.16 684 18.54 0.0137
2021-02-16 2020-12-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 4,167 -681 -14.05 577 44.97 0.0119
2020-11-13 2020-09-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 4,848 0 0.00 398 5.01 0.0093
2020-08-10 2020-06-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 4,848 -82 -1.66 379 73.06 0.0095
2020-05-11 2020-03-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 4,930 -75 -1.50 219 2.34 0.0061
2020-02-13 2019-12-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 5,005 -135 -2.63 214 -2.73 0.0046
2019-11-12 2019-09-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 5,140 -44 -0.85 220 -33.13 0.0050
2019-08-12 2019-06-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 5,184 -117 -2.21 329 -10.60 0.0073
2019-05-09 2019-03-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 5,301 0 0.00 368 60.00 0.0081
2019-02-13 2018-12-31 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 5,301 -400 -7.02 230 -47.13 0.0057
2018-11-13 2018-09-30 13F ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 5,701 5,701 435 0.0086
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.