# ULTRAGENYX PHARMACEUTICAL IN COM

ULTRAGENYX PHARMACEUTICAL IN COM is a security (CUSIP 90400D108) tracked across SEC portfolio filings. 316 institutional managers reported $2.1B on Form 13F as of 2026-06-30; 26 registered fund positions totaling $105.9M via N-PORT as of 2026-05-31.

## Summary

- Issuer: ULTRAGENYX PHARMACEUTICAL IN
- Class: COM
- CUSIP: 90400D108
- Asset category: EC
- 13F holders: 316
- 13F value: $2.1B
- 13F period: 2026-06-30
- N-PORT fund positions: 26
- N-PORT value: $105.9M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 316 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $236.1M | 10,263,815 |
| BlackRock, Inc. | New York, NY | $152.9M | 7,299,598 |
| STATE STREET CORP | BOSTON, MA | $105.2M | 5,021,441 |
| [AQR CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/111883) | Greenwich, CT | $95.9M | 4,578,024 |
| [RTW INVESTMENTS, LP](https://search.stillhousedata.com/firm/153232) | NEW YORK, NY | $76.4M | 3,648,795 |
| Sofinnova Investments, Inc. | Menlo Park, CA | $73.2M | 3,145,888 |
| [SANDS CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/137610) | ARLINGTON, VA | $67.3M | 3,214,533 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $55.3M | 2,640,812 |
| Bellevue Group AG | Kuesnacht, V8 | $49.9M | 2,380,000 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $49.7M | 2,115,491 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $46.2M | 2,205,820 |
| [FRONTIER CAPITAL MANAGEMENT CO LLC](https://search.stillhousedata.com/firm/106274) | Boston, MA | $45.9M | 2,191,182 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $38.8M | 1,849,391 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $37.1M | 1,772,184 |
| MORGAN STANLEY | NEW YORK, NY | $31.4M | 1,500,528 |

## Top fund holders (N-PORT)

_Showing 15 of 26 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $47.1M | 21.62% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $22.6M | 2.78% |
| [VANGUARD STRATEGIC EQUITY FUND](https://search.stillhousedata.com/fund/S000002593) | VANGUARD HORIZON FUNDS | $16.4M | 16.21% |
| [T. Rowe Price New Horizons Fund, Inc.](https://search.stillhousedata.com/fund/S000002106) | T. ROWE PRICE NEW HORIZONS FUND, INC. | $4.9M | 3.81% |
| [HARTFORD SMALL CAP GROWTH HLS FUND](https://search.stillhousedata.com/fund/S000004108) | HARTFORD HLS SERIES FUND II INC | $2.6M | 33.92% |
| Liberty All-Star Growth Fund | LIBERTY ALL STAR GROWTH FUND INC. | $1.9M | 55.69% |
| [AMG Frontier Small Cap Growth Fund](https://search.stillhousedata.com/fund/S000009910) | AMG Funds I | $1.5M | 148.56% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $1.1M | 0.19% |
| [Large Cap Index Master Portfolio](https://search.stillhousedata.com/fund/S000033023) | Master Investment Portfolio | $1.1M | 0.30% |
| [BlackRock Advantage SMID Cap Fund, Inc.](https://search.stillhousedata.com/fund/S000002323) | BlackRock Advantage SMID Cap Fund, Inc. | $928K | 12.28% |
| [Bridge Builder Tax Managed Small/Mid Cap Fund](https://search.stillhousedata.com/fund/S000076295) | Bridge Builder Trust | $924K | 3.05% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $894K | 0.30% |
| [Fidelity Nasdaq Composite Index ETF](https://search.stillhousedata.com/fund/S000006011) | Fidelity Commonwealth Trust | $779K | 0.71% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $675K | 4.85% |
| [VANGUARD MARKET NEUTRAL FUND](https://search.stillhousedata.com/fund/S000019457) | VANGUARD MONTGOMERY FUNDS | $514K | 11.91% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/90400d108.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.