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Livermore
Livermore
ZHEN

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 2026 vs. Q1 2026

How the institutions holding X4 Pharmaceuticals, Inc changed between Q1 2026 and Q2 2026.

All holders in Q2 2026All holders in Q1 2026

13F holders of XFOR: Q1 2026 compared with Q2 2026
MeasureQ1 2026Q2 2026Change
Holders8489+5
Shares93.9M99.2M+5.25M (+5.6%)
Value$388.1M$463.0M+$75.0M (+19.3%)

New holders (32)

Institutions that held X4 Pharmaceuticals, Inc at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to XFOR in Q2 2026
InstitutionSharesValue% of portfolio
Vanguard Portfolio Management LLC542,128$2.53M0.00%
Verdad Advisers, LP352,093$1.64M1.57%
Bank of New York Mellon Corp196,340$916.9K0.00%
Nuveen, LLC107,389$501.5K0.00%
Alps Advisors Inc95,726$447.0K0.00%
Rhumbline Advisers95,081$444.0K0.00%
Deutsche Bank AG78,885$368.4K0.00%
Gsa Capital Partners LLP76,314$356.0K0.02%
American Century Companies Inc74,795$349.3K0.00%
Wells Fargo & Company67,712$316.2K0.00%
Squarepoint Ops LLC67,078$313.3K0.00%
Price T Rowe Associates Inc66,379$310.0K0.00%
Wellington Management Group LLP51,800$241.9K0.00%
MetLife Investment Management47,969$224.0K0.00%
Point72 Asset Management, L.P.41,072$191.8K0.00%
Mirae Asset Global ETFs Holdings Ltd.37,073$173.1K0.00%
Police & Firemen's Retirement System of New Jersey23,846$111.4K0.00%
Axq Capital, LP22,880$106.8K0.01%
Manufacturers Life Insurance Company, The22,083$103.1K0.00%
Renaissance Technologies LLC18,100$84.5K0.00%
Intech Investment Management LLC17,290$80.7K0.00%
New York State Common Retirement Fund16,500$77.1K0.00%
Voya Investment Management LLC15,838$74.0K0.00%
Alliancebernstein L.P.14,580$60.2K0.00%
Prudential Financial Inc12,500$58.4K0.00%
ProShare Advisors LLC10,588$49.4K0.00%
Pettinga Financial Advisors, LLC10,000$46.7K0.01%
Legal & General Group Plc7,858$36.7K0.00%
Ameritas Investment Partners, Inc.7,338$34.3K0.00%
Sterling Capital Management LLC1,629$7.61K0.00%
California State Teachers Retirement System1,113$5.20K0.00%
Caitong International Asset Management Co., Ltd30$1400.00%

Sold out (27)

Institutions that held X4 Pharmaceuticals, Inc at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of XFOR in Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Millennium Management LLC1,210,514$5.00M
StemPoint Capital LP850,742$3.51M
Marshall Wace, LLP336,834$1.39M
Acorn Capital Advisors, LLC234,039$966.6K
Qube Research & Technologies Ltd218,954$904.3K
Pale Fire Capital SE167,590$692.1K
Brevan Howard Capital Management LP127,321$525.8K
Dynamic Technology Lab Private Ltd36,221$384.7K
Omers Administration Corp57,300$236.6K
Hudson Bay Capital Management LP50,287$207.7K
Catalyst Funds Management Pty Ltd47,383$195.7K
Jane Street Group, LLC37,143$153.4K
Diametric Capital, LP28,973$119.7K
Schonfeld Strategic Advisors LLC19,514$80.6K
Jefferies Financial Group Inc.19,474$80.4K
ExodusPoint Capital Management, LP14,703$60.7K
Virtu Financial LLC12,730$53.0K
JustInvest LLC11,525$47.6K
SummitTX Capital, L.P.11,200$46.3K
Signaturefd, LLC1,996$8.24K
State of Wyoming1,065$4.40K
Acadian Asset Management LLC802$3.00K
Farther Finance Advisors, LLC331$1.44K
Allworth Financial LP310$1.28K
Quadrant Capital Group LLC128$529
Parallel Advisors, LLC116$479
Northwestern Mutual Wealth Management Co5$21