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Ultragenyx Pharmaceutical Inc. hedge fund holdings

RARENASDAQ
$14.50-0.72 (-4.73% today)

Every quarter, large institutional investment managers with over $100M in U.S.-listed assets under management disclose their U.S. equity holdings through 13F filings. Read together, those filings show which businesses professional capital is moving into and out of.

Price vs funds buying and selling

RARE · close · 13FReported Aug 14, 2026

Price vs funds buying and selling data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (-52.0%). 0 fund reports plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
DateCategoryPersonRoleActionAmountChange in holding
Funds buying · new + increased
Funds selling · reduced + closed
Net buyers vs sellers
Buying = new + increased; selling = reduced + closed. Counts exclude position changes under 5% of the fund's holding last quarter.

Price and fund activity data

Quarterly 13F fund buying and selling activity
QuarterFunds buyingFunds sellingBoughtSoldFilersReported
Q2 2025122115$500M$338M284Aug 14, 2025
Q3 2025139111$749M$569M288Nov 14, 2025
Q4 2025124121$347M$513M270Feb 14, 2026
Q1 2026151111$612M$530M287May 15, 2026
Q2 2026147107$897M$563M292Aug 14, 2026

Quarterly action breakdown

Q2 2026
292 filers
New position
48
$88.9M+2.66M sh
Increased
99
$808M+24.2M sh
Reduced
72
-$437M-13.1M sh
Out / sold
35
-$126M-3.77M sh
Last 4 quarters · free
Reported Aug 14, 2026
FundActionChange in dollarValue% of portfolioReported
RTW Investments, LPAdded 113.68%+$139M$260M2.22%Aug 14, 2026
Sofinnova Investments, Inc.Reduce 45.40%-$47.7M$57.3M2.96%Aug 14, 2026
MPM Bioimpact LLCNew Buy+$47.4M$47.4M2.89%Aug 14, 2026
Wellington Management Group LLPReduce 52.65%-$46.4M$41.8M0.01%Aug 14, 2026
Adage Capital Partners GP, L.L.C.Added 229.17%+$36.7M$52.8M0.07%Aug 14, 2026
Jefferies Financial Group Inc.Added 5902.23%+$30.5M$31M0.20%Aug 17, 2026
Jones Hill Capital LPSell 100%-$24.4M$00.00%Aug 13, 2026
Frontier Capital Management Co LLCAdded 29.97%+$21.9M$95.1M0.89%Aug 14, 2026
Catalio Capital Management, LPReduce 62.83%-$17.8M$10.6M1.98%Aug 14, 2026
Bellevue Group AGReduce 16.69%-$13.3M$66.2M1.39%Aug 14, 2026
Ikarian Capital, LLCReduce 65.68%-$10.6M$5.53M0.60%Aug 14, 2026
Ensign Peak Advisors, IncAdded 4227.00%+$9.49M$9.71M0.02%Aug 14, 2026
Newtyn Management, LLCSell 100%-$8.38M$00.00%Aug 14, 2026
Rock Springs Capital Management LPReduce 20.59%-$8.38M$32.3M1.58%Aug 14, 2026
Sphera Funds Management Ltd.Reduce 27.29%-$7.37M$19.6M2.56%Aug 14, 2026
Longaeva Partners L.P.Reduce 81.87%-$6.24M$1.38M0.03%Aug 14, 2026
Voloridge Investment Management, LLCReduce 12.99%-$6.19M$41.5M0.18%Aug 14, 2026
Fred Alger Management, LLCReduce 51.97%-$5.17M$4.78M0.02%Aug 14, 2026
Parkman Healthcare Partners LLCSell 100%-$4.92M$00.00%Aug 14, 2026
Motley Fool Wealth Management, LLCSell 100%-$4.67M$00.00%Aug 6, 2026
Pictet Asset Management Holding SAAdded 24.87%+$4.61M$23.2M0.02%Jul 30, 2026
Nomura Asset Management International Inc.Added 63.84%+$3.87M$9.94M0.01%Aug 14, 2026
Eversept Partners, LPAdded 146.31%+$3.06M$5.15M0.27%Aug 14, 2026
Capital Fund Management S.A.Reduce 72.03%-$2.92M$1.13M0.01%Aug 13, 2026
BIT Capital GmbHAdded 407.73%+$2.45M$3.05M0.09%Aug 12, 2026
Worldquant Millennium Advisors LLCAdded 42.36%+$2.13M$7.16M0.02%Aug 14, 2026
Rafferty Asset Management, LLCReduce 38.55%-$2.13M$3.39M0.01%Aug 14, 2026
Quantinno Capital Management LPAdded 33.58%+$2.1M$8.36M0.01%Aug 13, 2026
Axq Capital, LPReduce 64.86%-$2.08M$1.13M0.12%Aug 6, 2026
Sands Capital Management, LLCReduce 1.75%-$1.88M$105M0.39%Aug 13, 2026
Odyssean, LLCAdded 81.11%+$1.83M$4.08M0.66%Aug 14, 2026
First Trust Advisors LPAdded 368.03%+$1.74M$2.22M0.00%Aug 11, 2026
Flax Pond Capital, LLCAdded 102.65%+$1.58M$3.11M1.15%Aug 14, 2026
Neo Ivy Capital ManagementSell 100%-$1.54M$00.00%Aug 14, 2026
Diversified Trust CoNew Buy+$1.4M$1.4M0.02%Jul 17, 2026
Birchview Capital, LPSell 100%-$1.3M$00.00%Aug 14, 2026
Nordea Investment Management ABSell 100%-$1.2M$00.00%Aug 5, 2026
Hennion & Walsh Asset Management, Inc.Reduce 57.79%-$1.16M$850K0.02%Jul 8, 2026
Ishara Investments LPAdded 17.65%+$1.03M$6.84M5.03%Aug 14, 2026
Pinnacle Associates LtdAdded 27.64%+$948K$4.38M0.05%Aug 3, 2026
Congress Asset Management CoSell 100%-$941K$00.00%Jul 7, 2026
SummitTX Capital, L.P.Added 7.62%+$885K$12.5M0.32%Aug 14, 2026
Privium Fund Management B.V.Reduce 7.13%-$868K$11.3M2.08%Aug 7, 2026
Stonepine Capital Management, LLCNew Buy+$835K$835K0.47%Aug 17, 2026
Treasurer of the State of North CarolinaSell 100%-$827K$00.00%Aug 14, 2026
Tetragon Partners GP LtdSell 100%-$827K$00.00%Aug 13, 2026
Virtus Investment Advisers, LLCAdded 104.95%+$817K$1.59M0.37%Aug 11, 2026
Aberdeen Group plcSell 100%-$807K$00.00%Jul 31, 2026
Diadema Partners LPSell 100%-$736K$00.00%Aug 14, 2026
Bridgefront Capital, LLCSell 100%-$736K$00.00%Aug 14, 2026
Fox Run Management, L.L.C.Sell 100%-$717K$00.00%Aug 4, 2026
Profund Advisors LLCReduce 28.65%-$690K$1.72M0.05%Aug 11, 2026
Thrivent Financial for LutheransSell 100%-$550K$00.00%Aug 14, 2026
VANGUARD ASSET MANAGEMENT, LtdAdded 20.91%+$542K$3.14M0.00%Aug 13, 2026
S&Co IncSell 100%-$529K$00.00%Aug 6, 2026
DAFNA Capital Management LLCReduce 22.91%-$467K$1.57M0.30%Aug 14, 2026
IMC-Chicago, LLCAdded 114.24%+$455K$853K0.00%Aug 6, 2026
Sivia Capital Partners, LLCNew Buy+$432K$432K0.05%Jul 23, 2026
Daiwa Securities Group Inc.Added 167.21%+$428K$683K0.00%Jul 31, 2026
Massachusetts Financial Services CoAdded 4.80%+$417K$9.11M0.00%Aug 3, 2026
Krilogy Financial LLCNew Buy+$399K$399K0.01%Jul 27, 2026
Bull Harbor Capital LLCNew Buy+$378K$378K0.07%Aug 10, 2026
Jain Global LLCReduce 21.78%-$378K$1.36M0.01%Aug 14, 2026
Inceptionr LLCNew Buy+$365K$365K0.09%Aug 11, 2026
Harbor Capital Advisors, Inc.Reduce 13.08%-$363K$2.42M0.16%Aug 7, 2026
AlphaGrep UK LtdSell 100%-$362K$00.00%Aug 14, 2026
Yorktown Management & Research Co IncNew Buy+$359K$359K0.22%Jul 23, 2026
Lighthouse Investment Partners, LLCAdded 96.85%+$341K$694K0.02%Aug 14, 2026
Arrowpoint Investment Partners (Singapore) Pte. Ltd.New Buy+$328K$328K0.07%Aug 13, 2026
Woodstock CorpNew Buy+$307K$307K0.03%Jul 13, 2026
BNP PARIBAS ASSET MANAGEMENT Holding S.A.Reduce 2.13%-$297K$13.7M0.01%Aug 13, 2026
Choreo, LLCNew Buy+$289K$289K0.00%Aug 4, 2026
ADAR1 Capital Management, LLCSell 100%-$281K$00.00%Aug 14, 2026
Curi Capital, LLCNew Buy+$280K$280K0.00%Aug 14, 2026
nVerses Capital, LLCNew Buy+$255K$255K0.39%Aug 4, 2026
Harbour Capital Advisors, LLCNew Buy+$250K$250K0.05%Jul 15, 2026
Motley Fool Asset Management LLCReduce 9.59%-$250K$2.36M0.09%Aug 6, 2026
Tocqueville Asset Management L.P.Added 31.03%+$247K$1.04M0.01%Aug 10, 2026
Tidal Investments LLCSell 100%-$242K$00.00%Aug 13, 2026
Blair William & CoNew Buy+$241K$241K0.00%Aug 11, 2026
DNB Asset Management ASNew Buy+$231K$231K0.00%Aug 11, 2026
Frec Markets, Inc.New Buy+$231K$231K0.02%Aug 13, 2026
denkapparat Operations GmbHNew Buy+$230K$230K0.08%Aug 6, 2026
Howe & Rusling IncNew Buy+$219K$219K0.01%Aug 10, 2026
E Fund Management Co., Ltd.Reduce 31.07%-$216K$479K0.01%Aug 11, 2026
Schroder Investment Management GroupReduce 3.91%-$215K$5.28M0.00%Aug 13, 2026
Xponance LLCReduce 38.96%-$214K$336K0.00%Aug 10, 2026
PCM Encore, LLCNew Buy+$211K$211K0.04%Aug 11, 2026
Handelsbanken Fonder ABAdded 17.90%+$200K$1.32M0.00%Jul 10, 2026
Natixis Advisors, LLCAdded 38.95%+$199K$711K0.00%Aug 14, 2026
OP Asset Management LtdAdded 6.57%+$191K$3.09M0.03%Jul 28, 2026
Persistent Asset Partners LtdSell 100%-$186K$00.00%Aug 7, 2026
Summit Trail Advisors, LLCAdded 33.08%+$184K$739K0.01%Aug 11, 2026
PSP Research LLCReduce 23.08%-$170K$568K0.30%Jul 9, 2026
Knott David M JrAdded 15.12%+$167K$1.27M0.67%Aug 12, 2026
Quarry LPAdded 17.65%+$125K$835K0.07%Aug 14, 2026
Fideuram - Intesa Sanpaolo Private Banking S.P.A.Reduce 3.52%-$117K$3.22M0.10%Jul 23, 2026
Kennedy Capital Management LLCReduce 1.50%-$110K$7.21M0.13%Aug 14, 2026
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am MainNew Buy+$101K$101K0.00%Aug 14, 2026
Mitsubishi UFJ Asset Management Co., Ltd.Added 37.08%+$94.3K$348K0.00%Aug 7, 2026

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