13F

Stock

X4 Pharmaceuticals, Inc

XFOR · held by 79 managers

Reported value

$357.6M

Holders

79

+4 new · −0 exited

Holders’ est. mark

$13.4K

Price effect on 2 books still in the name

Largest holder

$35.8M

Empery Asset Management, LP

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Empery Asset Management, LP8.95M$35.8MHeld
Fidelity8.5M$34MHeld
MORGAN STANLEY8.21M$32.8M$2.16KAdded$32.8M
Bain Capital Life Sciences Investors, LLC7.97M$31.9MHeld
PERCEPTIVE ADVISORS LLC6.31M$25.3MHeld
Saturn V Capital Management LP5.8M$23.2MHeld
Deep Track Capital, LP5.01M$20.1MHeld
Kalehua Capital Management LLC3.72M$14.9MHeld
Vanguard3.42M$13.7MHeld
BRAIDWELL LP3.37M$13.5MHeld
NEA Management Company, LLC3.23M$12.9MHeld
Blackstone Inc.2.68M$10.7MNew
Rosalind Advisors, Inc.2.61M$10.4MHeld
Trails Edge Capital Partners, LP2.57M$10.3MHeld
Nantahala Capital Management, LLC2.45M$9.8MHeld
BVF INC/IL2.23M$8.93MHeld
SAMSARA BIOCAPITAL, LLC1.96M$7.84MHeld
Siren, L.L.C.1.5M$6MHeld
BlackRock, Inc.1.23M$4.91MHeld
Woodline Partners LP1M$4MHeld
GEODE CAPITAL MANAGEMENT, LLC940.4K$3.76MHeld
STEMPOINT CAPITAL LP898.5K$3.59MHeld
GOLDMAN SACHS GROUP INC831.9K$3.33MHeld
Point72 Asset Management, L.P.808.2K$3.23MHeld
Stonepine Capital Management, LLC593.6K$2.37MHeld
SILVERARC CAPITAL MANAGEMENT, LLC357.4K$1.43MHeld
ACORN CAPITAL ADVISORS, LLC273.3K$1.09MHeld
State Street198.2K$792.9KHeld
NORTHERN TRUST CORP178.2K$712.9KHeld
Pale Fire Capital SE167.6K$670.4KHeld
Affinity Asset Advisors, LLC145K$580KHeld
Citadel128.7K$514.7KHeld
Palumbo Wealth Management LLC113.4K$453.4KHeld
OMERS ADMINISTRATION Corp109.2K$436.8KHeld
JANE STREET GROUP, LLC91.4K$365.7KHeld
MARSHALL WACE, LLP80.5K$321.8KHeld
ExodusPoint Capital Management, LP79.1K$316.3KHeld
Qube Research & Technologies Ltd67.7K$271KHeld
CHARLES SCHWAB INVESTMENT MANAGEMENT INC66.8K$267.2KHeld
Balyasny Asset Management L.P.64.5K$258KHeld
BARCLAYS PLC57.5K$230KNew
MILLENNIUM MANAGEMENT LLC56K$223.9KHeld
Susquehanna Portfolio Strategies, LLC43.3K$173KHeld
BANK OF AMERICA CORP /DE/35.8K$143K$11.2KAdded$77K
CITIGROUP INC32.3K$129.3KHeld
Hudson Bay Capital Management LP32.2K$129KNew
Jefferies Financial Group Inc.26.1K$104.5KHeld
Man Group plc24.2K$96.7KHeld
Lighthouse Investment Partners, LLC22.2K$88.8KHeld
SUSQUEHANNA INTERNATIONAL GROUP, LLP22.1K$88.5KHeld
STIFEL FINANCIAL CORP20.5K$82KHeld
TWO SIGMA INVESTMENTS, LP17.2K$69KHeld
Creative Planning16.4K$65.7KHeld
CAXTON CORP15.6K$62.2KHeld
Squarepoint Ops LLC12.5K$50.1KHeld
Tower Research Capital LLC (TRC)10.4K$41.8KHeld
Indivisible Partners10K$40KHeld
JPMORGAN CHASE & CO4.58K$18.3KHeld
UBS Group AG4.13K$16.5KHeld
GROUP ONE TRADING LLC4K$16KHeld
SIGNATUREFD, LLC2.75K$11KHeld
CIBC Private Wealth Group LLC2.17K$8.66KHeld
PNC Financial Services Group, Inc.1.76K$7.04KHeld
Russell Investments Group, Ltd.729$2.92KHeld
Allworth Financial LP715$2.86KNew
Bleichroeder LP595$2.38KHeld
BNP PARIBAS FINANCIAL MARKETS511$2.04KHeld
Farther Finance Advisors, LLC331$1.32KHeld
Blue Trust, Inc.284$1.14KHeld
Fortitude Family Office, LLC137$548Held
SBI Securities Co., Ltd.50$200Held
JONES FINANCIAL COMPANIES LLLP38$152Held
NewEdge Advisors, LLC33$132Held
Rockefeller Capital Management L.P.33$132Held
Virtu Financial LLC22.5K$90Held
RMG Wealth Management LLC28$64Held
HighMark Wealth Management LLC6$24Held
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO5$20Held
ROYAL BANK OF CANADA104$0Held

Positions as of Q4 2025. 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.