RARE · Ultragenyx Pharmaceutical Inc. · Shareholders & Ownership
Every disclosed holder of RARE in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns RARE
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 106,886,057 | 108.42% |
| Insiders (Forms 3, 4, 5) | 2,194,015 | 2.23% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 10,491,199 | -10.64% |
| Registered funds (N-PORT, not summed) | 31,954,418 | 32.41% |
Shares outstanding: 98,588,873, the issuer's latest cover-page count restated onto today's split basis.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of RARE
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10,654,276 | ||
| 1.1 |
BlackRock, Inc.
13G
CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
8,141,384 | ||
| 1.2 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
2,501,996 | ||
| 1.3 |
iShares Biotechnology ETF
Fund
S000004350 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
635,346 | ||
| 1.4 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
496,620 | ||
| 1.5 |
iShares Russell 2000 Growth ETF
Fund
S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
409,241 | ||
| 2 |
RTW INVESTMENTS, LP
13F
CIK 1493215 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7,796,895 | ||
| 2.1 |
RTW INVESTMENTS, LP
13G
CIK 1493215 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
7,796,895 | ||
| 3 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
6,790,135 | ||
| 3.1 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13G
CIK 2100121 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
6,853,427 | ||
| 4 |
AQR CAPITAL MANAGEMENT LLC
13F
CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
6,560,809 | ||
| 4.1 |
AQR CAPITAL MANAGEMENT LLC
13G
CIK 1167557 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
6,560,809 | ||
| 4.2 |
AQR Long-Short Equity Fund
Fund
S000041116 · Registered fund · Jun 30, 2026
AQR Funds, not summed
|
914,718 | ||
| 4.3 |
AQR Equity Market Neutral Fund
Fund
S000046740 · Registered fund · Jun 30, 2026
AQR Funds, not summed
|
231,583 | ||
| 4.4 |
AQR Managed Futures Strategy Fund
Fund
S000027214 · Registered fund · Jun 30, 2026
AQR Funds, not summed
|
217,581 | ||
| 4.5 |
AQR Managed Futures Strategy HV Fund
Fund
S000041117 · Registered fund · Jun 30, 2026
AQR Funds, not summed
|
135,487 | ||
| 5 |
|
6,158,766 | ||
| 5.1 |
STATE STREET CORP
13G
CIK 93751 · Bank · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
6,158,766 | ||
| 5.2 |
State Street(R) SPDR(R) S&P(R) Biotech ETF
Fund
S000010018 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
3,666,868 | ||
| 5.3 |
State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF
Fund
S000063362 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
94,619 | ||
| 5.4 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
34,076 | ||
| 5.5 |
State Street(R) SPDR(R) US Small Cap Low Volatility Index ETF
Fund
S000039795 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
8,947 | ||
| 6 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,296,491 | ||
| 6.1 |
VANGUARD CAPITAL MANAGEMENT LLC
13G
CIK 2100119 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
5,058,419 | ||
| 7 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,621,200 | ||
| 8 |
SANDS CAPITAL MANAGEMENT, LLC
13F
CIK 1020066 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,158,368 | ||
| 9 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
2,986,621 | ||
| 10 |
JACOBS LEVY EQUITY MANAGEMENT, INC
13F
CIK 884414 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,939,719 | ||
| 11 |
FRONTIER CAPITAL MANAGEMENT CO LLC
13F
CIK 351173 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,847,936 | ||
| 12 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,578,828 | ||
| 13 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
2,144,802 | ||
| 14 |
Bellevue Group AG
13F
CIK 1674546 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,982,775 | ||
| 15 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,730,193 | ||
| 16 |
Sofinnova Investments, Inc.
13F
CIK 1631134 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,717,505 | ||
| 17 |
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F
CIK 1165408 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,580,000 | ||
| 18 |
GW&K Investment Management, LLC
13F
CIK 1082917 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,481,178 | ||
| 19 |
MPM BIOIMPACT LLC
13F
CIK 1687078 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,418,215 | ||
| 20 |
PRICE T ROWE ASSOCIATES INC /MD/
13F
CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,356,501 | ||
| 20.1 |
T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund
Fund
S000002074 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
|
429,669 | ||
| 20.2 |
T. Rowe Price New Horizons Fund, Inc.
Fund
S000002106 · Registered fund · Jun 30, 2026
T. ROWE PRICE NEW HORIZONS FUND, INC., not summed
|
232,215 | ||
| 20.3 |
T. Rowe Price Small-Mid Cap ETF
Fund
S000079837 · Registered fund · Jun 30, 2026
T. Rowe Price Exchange-Traded Funds, Inc., not summed
|
71,898 | ||
| 20.4 |
T. Rowe Price Integrated U.S. Small-Mid Cap Core Equity Fund
Fund
S000052904 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
|
46,722 | ||
| 20.5 |
T. Rowe Price Extended Equity Market Index Fund
Fund
S000002090 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
16,156 | ||
| 21 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,324,805 | ||
| 21.1 |
Vitality Portfolio
Fund
S000074797 · Registered fund · Mar 31, 2026
MORGAN STANLEY INSTITUTIONAL FUND INC, not summed
|
758 | ||
| 21.2 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
347 | ||
| 22 |
WELLINGTON MANAGEMENT GROUP LLP
13F
CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,250,464 | ||
| 23 |
VOLORIDGE INVESTMENT MANAGEMENT, LLC
13F
CIK 1556921 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,241,556 | ||
| 24 |
VANGUARD SMALL-CAP GROWTH INDEX FUND
Fund
S000002846 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,238,640 | ||
| 25 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,148,454 | ||
| 26 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,127,711 | ||
| 27 |
VANGUARD STRATEGIC EQUITY FUND
Fund
S000002593 · Registered fund · Jun 30, 2026
VANGUARD HORIZON FUNDS, not summed
|
1,072,214 | ||
| 28 |
Candriam S.C.A.
13F
CIK 1537014 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,001,841 | ||
| 29 |
Rock Springs Capital Management LP
13F
CIK 1595725 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
967,855 | ||
| 30 |
|
935,739 | ||
| 31 |
Jefferies Financial Group Inc.
13F
CIK 96223 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
929,626 | ||
| 32 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
920,314 | ||
| 32.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
48,893 | ||
| 32.2 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
8,375 | ||
| 32.3 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
158 | ||
| 33 |
Eagle Health Investments LP
13F
CIK 1842545 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
884,121 | ||
| 34 |
Qube Research & Technologies Ltd
13F
CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
882,219 | ||
| 35 |
VANGUARD EXPLORER FUND
Fund
S000002578 · Registered fund · Jul 31, 2026
VANGUARD EXPLORER FUND, not summed
|
821,986 | ||
| 36 |
Russell Investments Group, Ltd.
13F
CIK 1692234 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
784,099 | ||
| 36.1 |
U.S. Strategic Equity Fund
Fund
S000037466 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
123,911 | ||
| 36.2 |
U.S. Strategic Equity Fund
Fund
S000006863 · Registered fund · Jun 30, 2026
RUSSELL INVESTMENT FUNDS, not summed
|
26,827 | ||
| 36.3 |
U.S. Small Cap Equity Fund
Fund
S000001586 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
21,009 | ||
| 36.4 |
U.S. Small Cap Equity Fund
Fund
S000006864 · Registered fund · Jun 30, 2026
RUSSELL INVESTMENT FUNDS, not summed
|
5,822 | ||
| 37 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
760,825 | ||
| 38 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
760,039 | ||
| 38.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
463,045 | ||
| 38.2 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
234,817 | ||
| 38.3 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
56,898 | ||
| 38.4 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
53,281 | ||
| 38.5 |
Schwab Small-Cap Equity Fund
Fund
S000005516 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
25,242 | ||
| 39 |
Pictet Asset Management Holding SA
13F
CIK 1993888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
753,695 | ||
| 40 |
|
693,959 | ||
| 40.1 |
Nuveen Quant Small/Mid Cap Equity Fund
Fund
S000054623 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
248,080 | ||
| 40.2 |
College Retirement Equities Fund - Total Global Stock Account
Fund
S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
|
201,100 | ||
| 40.3 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
128,084 | ||
| 40.4 |
Nuveen Equity Index Fund
Fund
S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
64,700 | ||
| 40.5 |
TIAA Separate Account VA-1 - Stock Index Account
Fund
S000005098 · Registered fund · Jun 30, 2026
TIAA Separate Account VA-1, not summed
|
1,912 | ||
| 41 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
671,411 | ||
| 42 |
|
657,699 | ||
| 43 |
Touchstone Funds Group Trust-Touchstone Sands Capital Select Growth Fund
Fund
S000005840 · Registered fund · Jun 30, 2026
Touchstone Funds Group Trust, not summed
|
611,950 | ||
| 44 |
Palo Alto Investors LP
13F
CIK 1306923 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
596,495 | ||
| 45 |
SPHERA FUNDS MANAGEMENT LTD.
13F
CIK 1496201 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
588,494 | ||
| 46 |
Legal & General Group Plc
13F
CIK 764068 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
586,520 | ||
| 47 |
PANAGORA ASSET MANAGEMENT INC
13F
CIK 883677 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
586,230 | ||
| 48 |
FMR LLC
13F
CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
576,849 | ||
| 48.1 |
Fidelity Small Cap Index Fund
Fund
S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
|
1,055,493 | ||
| 48.2 |
Strategic Advisers U.S. Total Stock Fund
Fund
S000084926 · Registered fund · May 31, 2026
Fidelity Rutland Square Trust II, not summed
|
527,813 | ||
| 48.3 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
500,243 | ||
| 48.4 |
Strategic Advisers Fidelity U.S. Total Stock Fund
Fund
S000061481 · Registered fund · May 31, 2026
Fidelity Rutland Square Trust II, not summed
|
266,000 | ||
| 48.5 |
Fidelity Total Market Index Fund
Fund
S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
180,636 | ||
| 49 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
575,338 | ||
| 49.1 |
Goldman Sachs Multi-Manager Global Equity Fund
Fund
S000049146 · Registered fund · Jul 31, 2026
Goldman Sachs Trust II, not summed
|
18,476 | ||
| 49.2 |
Goldman Sachs Innovate Equity ETF
Fund
S000068597 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
9,780 | ||
| 49.3 |
Multi-Manager U.S. Small Cap Equity Fund
Fund
S000051363 · Registered fund · Apr 30, 2026
Goldman Sachs Trust II, not summed
|
2,866 | ||
| 49.4 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
2,187 | ||
| 49.5 |
Goldman Sachs MarketBeta(R) Russell 1000 Growth Equity ETF
Fund
S000083005 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
1,628 | ||
| 50 |
Trexquant Investment LP
13F
CIK 1633445 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
556,385 |
52 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
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