13F

Stock

X4 Pharmaceuticals, Inc

XFOR · held by 84 managers

Reported value

$388M

Holders

84

+15 new · −11 exited

Holders’ est. mark

$10.6M

Price effect on 66 books still in the name

Largest holder

$39.1M

MORGAN STANLEY

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
MORGAN STANLEY9.47M$39.1M$1.07MAdded$6.27M
Empery Asset Management, LP8.94M$36.9M$1.16MAdded$1.13M
Fidelity8.1M$33.5M$1.05MCut−$529.4K
Bain Capital Life Sciences Investors, LLC7.97M$32.9M$1.04MAdded$1.04M
PERCEPTIVE ADVISORS LLC6.74M$27.8M$820.9KAdded$2.57M
Saturn V Capital Management LP6.46M$26.7M$754.1KAdded$3.46M
Deep Track Capital, LP6.34M$26.2M$651.8KAdded$6.13M
Kalehua Capital Management LLC3.72M$15.4M$484KAdded$484K
VANGUARD CAPITAL MANAGEMENT LLC3.5M$14.4MHeld
BRAIDWELL LP3.27M$13.5M$425.5KAdded$41.7K
NEA Management Company, LLC3.23M$13.4M$420.4KAdded$420.4K
Rosalind Advisors, Inc.3.21M$13.3M$338.8KAdded$2.85M
Blackstone Inc.2.68M$11.1M$348.7KAdded$348.6K
Trails Edge Capital Partners, LP2.57M$10.6M$334.3KAdded$334.3K
Nantahala Capital Management, LLC2.45M$10.1M$318.4KAdded$318.4K
BVF INC/IL2.23M$9.23M$290.4KAdded$290.4K
SAMSARA BIOCAPITAL, LLC1.83M$7.57M$238.2KCut−$271.5K
BlackRock, Inc.1.21M$5M$157.5KAdded$97.5K
MILLENNIUM MANAGEMENT LLC1.21M$5M$7.28KAdded$4.78M
Woodline Partners LP1M$4.13M$130.1KAdded$131.1K
GEODE CAPITAL MANAGEMENT, LLC939.7K$3.88M$122.3KAdded$119.5K
GOLDMAN SACHS GROUP INC882.1K$3.64M$108.1KAdded$315.7K
SUSQUEHANNA INTERNATIONAL GROUP, LLP856.2K$3.54M$2.88KAdded$3.45M
STEMPOINT CAPITAL LP850.7K$3.51M$110.6KCut−$80.3K
VANGUARD FIDUCIARY TRUST CO480.7K$1.99MHeld
State Street403.5K$1.67M$25.8KAdded$873.7K
MARSHALL WACE, LLP336.8K$1.39M$10.5KAdded$1.07M
Stonepine Capital Management, LLC335.3K$1.38M$43.6KCut−$989.5K
VR ADVISER, LLC330.5K$1.37MNew
UBS Group AG267.3K$1.1M$537Added$1.09M
ACORN CAPITAL ADVISORS, LLC234K$966.6K$30.4KCut−$126.8K
Qube Research & Technologies Ltd219K$904.3K$8.81KAdded$633.3K
NORTHERN TRUST CORP178.2K$736.1K$23.2KAdded$23.2K
Pale Fire Capital SE167.6K$692.1K$21.8KAdded$21.8K
BANK OF AMERICA CORP /DE/150.7K$622.3K$4.65KAdded$479.2K
Affinity Asset Advisors, LLC145K$598.9K$18.8KAdded$18.9K
Palumbo Wealth Management LLC131K$541.1K$14.7KAdded$87.7K
Brevan Howard Capital Management LP127.3K$525.8KNew
Susquehanna Portfolio Strategies, LLC102.6K$423.7K$5.62KAdded$250.7K
Dynamic Technology Lab Private Ltd36.2K$384.7KNew
CHARLES SCHWAB INVESTMENT MANAGEMENT INC66.7K$275.7K$8.68KAdded$8.52K
OMERS ADMINISTRATION Corp57.3K$236.6K$7.45KCut−$200.2K
Hudson Bay Capital Management LP50.3K$207.7K$4.19KAdded$78.7K
Catalyst Funds Management Pty Ltd47.4K$195.7KNew
JANE STREET GROUP, LLC37.1K$153.4K$4.83KCut−$212.3K
CITIGROUP INC35.8K$147.7K$4.2KAdded$18.4K
Vanguard Global Advisers, LLC33K$136.2KHeld
Diametric Capital, LP29K$119.7KNew
STIFEL FINANCIAL CORP21.8K$90K$2.66KAdded$8.01K
Invesco Ltd.20K$82.5KNew
Schonfeld Strategic Advisors LLC19.5K$80.6KNew
Jefferies Financial Group Inc.19.5K$80.4K$2.53KCut−$24K
CAXTON CORP15.6K$64.2K$2.02KAdded$2.02K
ExodusPoint Capital Management, LP14.7K$60.7K$1.91KCut−$255.6K
TWO SIGMA INVESTMENTS, LP13.9K$57.3K$1.8KCut−$11.7K
Creative Planning13.8K$57.1K$1.8KCut−$8.64K
Jump Financial, LLC12.3K$50.9KNew
Vanguard Personalized Indexing Management, LLC11.5K$47.6KNew
SummitTX Capital, L.P.11.2K$46.3KNew
WINTON GROUP Ltd10.6K$43.8KNew
Indivisible Partners10K$37K−$3KCut−$3K
BNP PARIBAS FINANCIAL MARKETS4.76K$19.6K$66Added$17.6K
BARCLAYS PLC2.81K$11.6K$366Cut−$218.4K
SIGNATUREFD, LLC2K$8.24K$259Cut−$2.77K
PNC Financial Services Group, Inc.1.76K$7.26K$229Added$229
State of Wyoming1.06K$4.4KNew
Russell Investments Group, Ltd.729$3.01K$95Added$95
GROUP ONE TRADING LLC712$2.94K$93Cut−$13.1K
Bleichroeder LP595$2.46K$77Added$77
Farther Finance Advisors, LLC331$1.44K$116Added$116
Allworth Financial LP310$1.28K$41Cut−$1.58K
Blue Trust, Inc.284$1.17K$37Added$37
Tower Research Capital LLC (TRC)180$743$23Cut−$41K
QUADRANT CAPITAL GROUP LLC128$529New
Parallel Advisors, LLC116$479New
SBI Securities Co., Ltd.54$223$6Added$23
JONES FINANCIAL COMPANIES LLLP38$154$2Added$2
Rockefeller Capital Management L.P.33$136$4Added$4
JPMORGAN CHASE & CO33$132$0Cut−$18.2K
Virtu Financial LLC12.7K$53$2Cut−$37
HighMark Wealth Management LLC6$24$0Held
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO5$21$1Added$1
ACADIAN ASSET MANAGEMENT LLC802$3New
ROYAL BANK OF CANADA115$0$0Held

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.