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

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.