ULTRAGENYX PHARMACEUTICAL IN (RARE) Institutional Shareholders
ULTRAGENYX PHARMACEUTICAL IN (RARE) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $3.44B in RARE holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of RARE tracked by InsiderSet, reporting ownership valued at approximately $355.75M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $281.91M, representing an estimated loss of -20.75% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 53% of the total disclosed RARE value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Rtw Investments, Lp, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in ULTRAGENYX PHARMACEUTICAL IN (RARE).
This page ranks the largest institutional RARE shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
302
Total Reported Value
$3.44B
Largest Holder
Blackrock, Inc.
Largest Position
$355.75M
Insider Transactions (90d)
6
Latest Filing Quarter
Q2 2026
New Institutional Positions
61
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 10,654,276 | $355,746,262 | $281,912,143 | -$73,834,119 | -20.75% | |
| Rtw Investments, Lp | 2.22% | 7,796,895 | $260,338,324 | $206,305,842 | -$54,032,482 | -20.75% | |
| Vanguard Portfolio Management Llc | 0.01% | 6,790,135 | $226,722,608 | $179,666,972 | -$47,055,636 | -20.75% | |
| Aqr Capital Management Llc | 0.07% | 6,560,809 | $214,144,806 | $173,599,006 | -$40,545,800 | -18.93% | |
| State Street Corp | 0.01% | 6,158,766 | $205,641,197 | $162,960,948 | -$42,680,249 | -20.75% | |
| Vanguard Capital Management Llc | 0.00% | 4,296,491 | $143,459,834 | $113,685,152 | -$29,774,682 | -20.75% | |
| Two Sigma Investments, Lp | 0.09% | 3,621,200 | $120,911,868 | $95,816,952 | -$25,094,916 | -20.75% | |
| Sands Capital Management, Llc | 0.39% | 3,158,368 | $105,457,908 | $83,570,417 | -$21,887,491 | -20.75% | |
| Jacobs Levy Equity Management, Inc | 0.35% | 2,939,719 | $98,157,217 | $77,784,965 | -$20,372,252 | -20.75% | |
| Frontier Capital Management Co Llc | 0.89% | 2,847,936 | $95,092,590 | $75,356,387 | -$19,736,203 | -20.75% | |
| Geode Capital Management, Llc | 0.00% | 2,578,828 | $86,123,888 | $68,235,789 | -$17,888,099 | -20.77% | |
| Bellevue Group Ag | 1.39% | 1,982,775 | $66,204,857 | $52,464,227 | -$13,740,631 | -20.75% | |
| D. E. Shaw & Co., Inc. | 0.04% | 1,730,193 | $57,771,145 | $45,780,907 | -$11,990,238 | -20.75% | |
| Sofinnova Investments, Inc. | 3.06% | 1,717,505 | $57,347,492 | $45,445,182 | -$11,902,310 | -20.75% | |
| Adage Capital Partners Gp, L.L.C. | 0.07% | 1,580,000 | $52,756,200 | $41,806,800 | -$10,949,400 | -20.75% | |
| Mpm Bioimpact Llc | 2.89% | 1,418,215 | $47,354,199 | $37,525,969 | -$9,828,230 | -20.75% | |
| Morgan Stanley | 0.00% | 1,324,805 | $44,235,265 | $35,054,340 | -$9,180,925 | -20.75% | |
| Wellington Management Group Llp | 0.01% | 1,250,464 | $41,752,993 | $33,087,277 | -$8,665,716 | -20.75% | |
| Voloridge Investment Management, Llc | 0.18% | 1,241,556 | $41,455,555 | $32,851,572 | -$8,603,983 | -20.75% | |
| Bank Of America Corp | 0.00% | 1,148,454 | $38,346,863 | $30,388,093 | -$7,958,770 | -20.75% | |
| Candriam S.C.A. | 0.15% | 1,001,841 | $33,419,286 | $26,508,713 | -$6,910,573 | -20.68% | |
| Rock Springs Capital Management Lp | 1.58% | 967,855 | $32,316,678 | $25,609,443 | -$6,707,235 | -20.75% | |
| Jefferies Financial Group Inc. | 0.29% | 929,626 | $31,040,212 | $24,597,904 | -$6,442,308 | -20.75% | |
| Northern Trust Corp | 0.00% | 920,314 | $30,729,285 | $24,351,508 | -$6,377,777 | -20.75% | |
| Eagle Health Investments Lp | 4.89% | 884,121 | $29,520,800 | $23,393,842 | -$6,126,958 | -20.75% | |
| Qube Research & Technologies Ltd | 0.03% | 882,219 | $29,457,292 | $23,343,515 | -$6,113,777 | -20.75% | |
| Russell Investments Group, Ltd. | 0.02% | 784,099 | $26,181,069 | $20,747,260 | -$5,433,809 | -20.75% | |
| Millennium Management Llc | 0.02% | 760,825 | $25,403,947 | $20,131,430 | -$5,272,518 | -20.75% | |
| Charles Schwab Investment Management Inc | 0.00% | 760,039 | $25,377,702 | $20,110,632 | -$5,267,070 | -20.75% | |
| Sixth Street Partners Management Company, L.P. | 0.00% | 760,039 | $25,377,702 | $20,110,632 | -$5,267,070 | -20.75% | |
| Nuveen, Llc | 0.01% | 693,959 | $23,171,291 | $18,362,155 | -$4,809,136 | -20.75% | |
| Pictet Asset Management Holding Sa | 0.02% | 753,695 | $23,159,948 | $19,942,770 | -$3,217,178 | -13.89% | |
| Vanguard Fiduciary Trust Co | 0.00% | 671,411 | $22,418,413 | $17,765,535 | -$4,652,878 | -20.75% | |
| Ubs Group Ag | 0.00% | 657,699 | $21,960,569 | $17,402,716 | -$4,557,853 | -20.75% | |
| Palo Alto Investors Lp | 2.75% | 596,495 | $19,916,968 | $15,783,258 | -$4,133,710 | -20.75% | |
| Sphera Funds Management Ltd. | 2.81% | 588,494 | $19,649,815 | $15,571,551 | -$4,078,264 | -20.75% | |
| Legal & General Group Plc | 0.00% | 586,520 | $19,583,902 | $15,519,319 | -$4,064,583 | -20.75% | |
| Panagora Asset Management Inc | 0.06% | 586,230 | $19,574,220 | $15,511,646 | -$4,062,574 | -20.75% | |
| Fmr Llc | 0.00% | 576,849 | $19,260,990 | $15,263,425 | -$3,997,565 | -20.75% | |
| Goldman Sachs Group Inc | 0.00% | 575,338 | $19,210,535 | $15,223,443 | -$3,987,092 | -20.75% | |
| Trexquant Investment Lp | 0.11% | 556,385 | $18,577,695 | $14,721,947 | -$3,855,748 | -20.75% | |
| Bnp Paribas Financial Markets | 0.01% | 498,167 | $16,633,796 | $13,181,499 | -$3,452,297 | -20.75% | |
| Bank Of New York Mellon Corp | 0.00% | 470,697 | $15,716,566 | $12,454,643 | -$3,261,923 | -20.75% | |
| Jpmorgan Chase & Co | 0.00% | 493,126 | $15,268,024 | $13,048,114 | -$2,219,910 | -14.54% | |
| Toronto Dominion Bank | 0.02% | 415,000 | $13,856,850 | $10,980,900 | -$2,875,950 | -20.75% | |
| Renaissance Technologies LLC | Jim Simons | 0.02% | 413,700 | $13,813,443 | $10,946,502 | -$2,866,941 | -20.75% |
| Bnp Paribas Asset Management Holding S.A. | 0.01% | 409,255 | $13,665,024 | $10,828,887 | -$2,836,137 | -20.75% | |
| Algert Global Llc | 0.15% | 389,964 | $13,020,898 | $10,318,447 | -$2,702,451 | -20.75% | |
| Manufacturers Life Insurance Company, The | 0.01% | 381,420 | $12,735,614 | $10,092,373 | -$2,643,241 | -20.75% | |
| Summittx Capital, L.P. | 0.33% | 374,270 | $12,496,875 | $9,903,184 | -$2,593,691 | -20.75% |
Frequently asked questions about RARE
Who owns the most RARE stock?
The largest holders of RARE are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ULTRAGENYX PHARMACEUTICAL IN (RARE).
Is RARE widely held by superinvestors?
Many widely followed stocks like RARE appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly RARE is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.