RARE Ultragenyx Pharmaceutical Inc.
Ultragenyx Pharmaceutical Inc. (RARE) Institutional Ownership
What the institutions did with RARE last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 10.7M | 10.0% |
| RTW INVESTMENTS, LP | 7.8M | 7.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.8M | 6.4% |
| AQR CAPITAL MANAGEMENT LLC | 6.6M | 6.1% |
| STATE STREET CORP | 6.2M | 5.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.3M | 4.0% |
| TWO SIGMA INVESTMENTS, LP | 3.6M | 3.4% |
| SANDS CAPITAL MANAGEMENT, LLC | 3.2M | 3.0% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 2.9M | 2.7% |
| FRONTIER CAPITAL MANAGEMENT CO LLC | 2.8M | 2.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6M | 2.4% |
| Bellevue Group AG | 2.0M | 1.9% |
| D. E. Shaw & Co., Inc. | 1.7M | 1.6% |
| Sofinnova Investments, Inc. | 1.7M | 1.6% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.6M | 1.5% |
| GW&K Investment Management, LLC | 1.5M | 1.4% |
| MPM BIOIMPACT LLC | 1.4M | 1.3% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.4M | 1.3% |
| MORGAN STANLEY | 1.3M | 1.2% |
| WELLINGTON MANAGEMENT GROUP LLP | 1.3M | 1.2% |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 1.2M | 1.2% |
| BANK OF AMERICA CORP /DE/ | 1.1M | 1.1% |
| Candriam S.C.A. | 1.0M | 0.9% |
| Rock Springs Capital Management LP | 967.9K | 0.9% |
| Jefferies Financial Group Inc. | 929.6K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| RTW INVESTMENTS, LP | Increased | 3.6M | 7.8M | +4.1M |
| BlackRock, Inc. | Increased | 7.3M | 10.7M | +3.4M |
| Assenagon Asset Management S.A. | Reduced | 2.3M | 241.7K | -2.0M |
| AQR CAPITAL MANAGEMENT LLC | Increased | 4.6M | 6.6M | +2.0M |
| CITADEL ADVISORS LLC | Reduced | 2.1M | 210.5K | -1.9M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Increased | 1.4M | 2.9M | +1.5M |
| Sofinnova Investments, Inc. | Reduced | 3.1M | 1.7M | -1.4M |
| MPM BIOIMPACT LLC | New | 0 | 1.4M | +1.4M |
| TWO SIGMA INVESTMENTS, LP | Increased | 2.2M | 3.6M | +1.4M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 5.4M | 6.8M | +1.4M |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 2.6M | 1.3M | -1.4M |
| Jones Hill Capital LP | Sold Out | 1.2M | 0 | -1.2M |
| STATE STREET CORP | Increased | 5.0M | 6.2M | +1.1M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Increased | 480.0K | 1.6M | +1.1M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 1.8M | 760.8K | -1.0M |
| Jefferies Financial Group Inc. | Increased | 15.5K | 929.6K | +914.1K |
| Point72 Asset Management, L.P. | Sold Out | 893.3K | 0 | -893.3K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.8M | 2.6M | +729.4K |
| FRONTIER CAPITAL MANAGEMENT CO LLC | Increased | 2.2M | 2.8M | +656.8K |
| HRT FINANCIAL LP | Reduced | 613.2K | 7.5K | -605.7K |
| PANAGORA ASSET MANAGEMENT INC | New | 0 | 586.2K | +586.2K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 804.1K | 1.4M | +552.4K |
| Catalio Capital Management, LP | Reduced | 850.8K | 316.3K | -534.5K |
| D. E. Shaw & Co., Inc. | Increased | 1.3M | 1.7M | +469.2K |
| Schonfeld Strategic Advisors LLC | Reduced | 494.7K | 52.9K | -441.9K |
| TORONTO DOMINION BANK | Increased | 162 | 415.0K | +414.8K |
| Newtyn Management, LLC | Sold Out | 400.0K | 0 | -400.0K |
| Bellevue Group AG | Reduced | 2.4M | 2.0M | -397.2K |
| NORTHERN TRUST CORP | Increased | 535.6K | 920.3K | +384.7K |
| Balyasny Asset Management L.P. | Sold Out | 384.4K | 0 | -384.4K |
| Russell Investments Group, Ltd. | Increased | 403.0K | 784.1K | +381.1K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 524.8K | 180.9K | -343.9K |
| Ikarian Capital, LLC | Reduced | 482.6K | 165.6K | -317.0K |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | 500.9K | 191.6K | -309.3K |
| FMR LLC | Increased | 287.3K | 576.8K | +289.5K |
| Ensign Peak Advisors, Inc | Increased | 6.7K | 290.8K | +284.1K |
| Rock Springs Capital Management LP | Reduced | 1.2M | 967.9K | -250.9K |
| JPMORGAN CHASE & CO | Increased | 245.9K | 493.1K | +247.2K |
| Parkman Healthcare Partners LLC | Sold Out | 235.0K | 0 | -235.0K |
| Motley Fool Wealth Management, LLC | Sold Out | 223.0K | 0 | -223.0K |
| GOLDMAN SACHS GROUP INC | Increased | 353.1K | 575.3K | +222.2K |
| SPHERA FUNDS MANAGEMENT LTD. | Reduced | 809.3K | 588.5K | -220.8K |
| Jump Financial, LLC | Reduced | 504.1K | 287.0K | -217.2K |
| Walleye Capital LLC | Increased | 119.7K | 334.9K | +215.1K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 558.5K | 760.0K | +201.6K |
| Longaeva Partners L.P. | Reduced | 228.1K | 41.3K | -186.8K |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | 1.4M | 1.2M | -185.3K |
| MORGAN STANLEY | Reduced | 1.5M | 1.3M | -175.7K |
| UBS Group AG | Reduced | 832.7K | 657.7K | -175.0K |
| JANE STREET GROUP, LLC | Sold Out | 173.7K | 0 | -173.7K |
| Trexquant Investment LP | Increased | 389.5K | 556.4K | +166.9K |
| FRED ALGER MANAGEMENT, LLC | Reduced | 298.0K | 143.2K | -154.9K |
| Pictet Asset Management Holding SA | Increased | 603.6K | 753.7K | +150.1K |
| Ghisallo Capital Management LLC | New | 0 | 150.0K | +150.0K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 561.7K | 413.7K | -148.0K |
| Y-Intercept (Hong Kong) Ltd | Reduced | 218.4K | 78.4K | -140.0K |
| GW&K Investment Management, LLC | Reduced | 1.6M | 1.5M | -134.2K |
| Bank of New York Mellon Corp | Increased | 341.1K | 470.7K | +129.6K |
| GROUP ONE TRADING LLC | Reduced | 140.2K | 17.7K | -122.5K |
| Blue Owl Capital Holdings LP | Reduced | 302.6K | 182.6K | -120.0K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.