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X4 Pharmaceuticals, Inc

XFOR
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001501697

In the last 90 days, X4 Pharmaceuticals, Inc insiders filed 0 open-market purchases and 2 sales; 89 institutions reported holding it in 13F filings for Q2 2026, worth $463.0M in total; no superinvestor holds it.

Q2 2023 vs. Q1 2023

How the institutions holding X4 Pharmaceuticals, Inc changed between Q1 2023 and Q2 2023.

All holders in Q2 2023All holders in Q1 2023

13F holders of XFOR: Q1 2023 compared with Q2 2023
MeasureQ1 2023Q2 2023Change
Holders5996+37
Shares61.5M112.9M+51.5M (+83.7%)
Value$53.6M$219.1M+$165.5M (+308.6%)

New holders (45)

Institutions that held X4 Pharmaceuticals, Inc at the end of Q2 2023 but not at the end of Q1 2023.

Institutions new to XFOR in Q2 2023
InstitutionSharesValue% of portfolio
Stonepine Capital Management, LLC4,605,263$8.93M3.22%
Adage Capital Partners GP, L.L.C.4,276,315$8.30M0.02%
Armistice Capital, LLC2,976,000$5.77M0.14%
CVI Holdings, LLC2,300,315$4.46M4.72%
Kingdon Capital Management, L.L.C.1,973,683$3.83M0.67%
Sio Capital Management, LLC1,749,003$3.39M1.20%
Marshall Wace, LLP704,351$1.37M0.00%
Monashee Investment Management LLC572,784$1.11M0.27%
EAM Investors, LLC567,801$1.10M0.20%
UBS Oconnor LLC450,000$873.0K0.02%
Nuveen Asset Management, LLC438,114$849.9K0.00%
Rhumbline Advisers153,922$298.6K0.00%
Sassicaia Capital Advisers LLC138,000$267.7K0.23%
AWM Investment Company, Inc.100,000$194.0K0.03%
Barclays PLC87,879$170.5K0.00%
MetLife Investment Management65,421$126.9K0.00%
Alliancebernstein L.P.65,400$126.9K0.00%
Deutsche Bank AG61,227$118.8K0.00%
American International Group, Inc.59,261$115.0K0.00%
Royce & Associates LP53,490$103.8K0.00%
Manufacturers Life Insurance Company, The51,690$100.3K0.00%
New York State Common Retirement Fund50,600$98.2K0.00%
Voya Investment Management LLC49,260$95.6K0.00%
Vontobel Holding Ltd.45,000$87.3K0.00%
Bank of America Corp44,838$87.0K0.00%
California State Teachers Retirement System40,956$79.5K0.00%
Citigroup Inc36,666$71.1K0.00%
State Board of Administration of Florida Retirement System34,950$67.8K0.00%
Belvedere Trading LLC28,771$55.8K0.02%
Price T Rowe Associates Inc25,005$49.0K0.00%
Resources Investment Advisors, LLC.25,150$48.8K0.00%
State of Wisconsin Investment Board23,800$46.2K0.00%
Private Advisor Group, LLC19,800$38.4K0.00%
ProShare Advisors LLC16,013$31.1K0.00%
Amalgamated Bank15,321$30.0K0.00%
Grimes & Company, Inc.15,000$29.1K0.00%
Principal Financial Group Inc13,804$26.8K0.00%
Legal & General Group Plc13,400$26.0K0.00%
Victory Capital Management Inc11,413$22.1K0.00%
Royal Bank of Canada10,243$20.0K0.00%
Ameritas Investment Partners, Inc.10,167$19.7K0.00%
1620 Investment Advisors, Inc.10,000$19.4K0.02%
Metropolitan Life Insurance Co6,779$13.2K0.00%
ICA Group Wealth Management, LLC1,350$2.62K0.00%
Cubist Systematic Strategies, LLC1$20.00%

Sold out (8)

Institutions that held X4 Pharmaceuticals, Inc at the end of Q1 2023 and filed for Q2 2023 without it.

Institutions that sold out of XFOR in Q2 2023
InstitutionShares, Q1 2023Value, Q1 2023
Cormorant Asset Management, LP1,628,980$1.42M
Ghost Tree Capital, LLC850,000$740.0K
Scoggin Management LP484,796$567.0K
XTX Topco Ltd96,649$84.1K
Landscape Capital Management, L.L.C.42,252$36.8K
Renaissance Technologies LLC10,092$9.00K
Advisor Group Holdings, Inc.529$460
CWM, LLC2$0