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Public ownership evidence

Ultragenyx Pharmaceutical Inc. (RARE) Ownership Disclosures

Read RARE insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-10-192026-10-15Horn HowardS7,066Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-15 and its public availability date is 2026-10-19. Subtracting those calendar dates gives 4 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001193125-26-425032 ↗SEC 0001193125-26-392233 ↗SEC 0001193125-26-384878 ↗

Recent Form 4 activity

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2026-10-192026-10-15Horn HowardS7,066Not reported
2026-09-152026-09-15Huizenga Theodore AlanS1,283Not reported
2026-09-082026-09-03Huizenga Theodore AlanS161Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Advisors Asset Management, Inc.2020-06-302026-08-287,376$576,951None
Corient Private Wealth LP2026-06-302026-08-28146,493$4,891,402None
Advisors Asset Management, Inc.2019-12-312026-08-2613,487$576,030None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-2626,719$559,763None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2631,019$1,035,724None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25101,471$3,388,117None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-253,388,117$101,471,000None
Advisors Asset Management, Inc.2020-03-312026-08-2212,819$569,548None
Assenagon Asset Management S.A.2026-06-302026-08-22120,864$4,035,649None
Palo Alto Investors LP2026-06-302026-08-20596,495$19,916,968None
CANTOR FITZGERALD, L. P.2026-06-302026-08-2019,924$665,262None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2071,092$2,373,458None
Palo Alto Investors LP2026-06-302026-08-19596,495$19,916,968None
Advisors Asset Management, Inc.2019-03-312026-08-1915,151$1,050,873None
Advisors Asset Management, Inc.2019-09-302026-08-1913,886$594,043None
Advisors Asset Management, Inc.2019-06-302026-08-1914,696$933,196None
Ensign Peak Advisors, Inc2026-03-312026-08-196,721$140,805None
Ensign Peak Advisors, Inc2025-12-312026-08-19250,571$5,763,133None
Ensign Peak Advisors, Inc2025-09-302026-08-19177,421$5,336,824None
Fulcrum Asset Management LLP2026-06-302026-08-19112$3,436None
Palo Alto Investors LP2026-06-302026-08-18596,495$19,916,968None
Corient Private Wealth LP2026-06-302026-08-18139,094$4,644,350None
Transamerica Financial Advisors, LLC2026-06-302026-08-18113$3,773None
Stonepine Capital Management, LLC2026-06-302026-08-18200,000$5,500,000Call
Stonepine Capital Management, LLC2026-06-302026-08-1825,000$834,750None
CAPSTONE INVESTMENT ADVISORS, LLC2026-06-302026-08-1816,457$549,499None
Jefferies Financial Group Inc.2026-06-302026-08-18929,626$31,040,212None
MCGUIRE CAPITAL ADVISORS INC2026-06-302026-08-15100$3,339None
Ishara Investments LP2026-06-302026-08-15205,000$6,844,950None
FLAX POND CAPITAL, LLC2026-06-302026-08-1556,838$1,897,821None
Odyssean, LLC2026-06-302026-08-15122,087$4,076,485None
SMA Capital LLC2026-06-302026-08-15310$10,351None
TORONTO DOMINION BANK2026-06-302026-08-15415,000$13,856,850None
SummitTX Capital, L.P.2026-06-302026-08-15374,270$12,496,875None
Squadron Capital Management LLC2026-06-302026-08-1555,000$1,836,450Call
SEI INVESTMENTS CO2026-06-302026-08-15211,710$7,068,997None
SEI INVESTMENTS CO2026-06-302026-08-15123$4,090None
Aster Capital Management (DIFC) Ltd2026-06-302026-08-15259$8,648None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15300$10,017None
JPL Wealth Management, LLC2026-06-302026-08-1559$1,971None
Rafferty Asset Management, LLC2026-06-302026-08-15101,655$3,394,260None
Marex Group Ltd2026-06-302026-08-1510,296$343,783None
Basecamp Wealth Advisors LLC2026-06-302026-08-1538$1,269None
Quarry LP2026-06-302026-08-1525,000$834,750None
Catalio Capital Management, LP2026-06-302026-08-15316,252$10,559,654None
ADAR1 Capital Management, LLC2026-06-302026-08-1520,000$667,800Call
XTX Topco Ltd2026-06-302026-08-1538,521$1,286,216None
Aquatic Capital Management LLC2026-06-302026-08-1516,760$559,616None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15760,039$25,377,702None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15760,039$25,377,702None

90-day public filing window, up to 50 source positions.

Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Advisors Asset Management, Inc. ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Advisors Asset Management, Inc. ↗Assenagon Asset Management S.A. ↗Palo Alto Investors LP ↗

Recent Congressional disclosures

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Gilbert Ray Cisneros, Jr.2026-10-122026-09-29purchase$1,001 - $15,000

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.