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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.

Q4 2021 vs. Q3 2021

How the institutions holding X4 Pharmaceuticals, Inc changed between Q3 2021 and Q4 2021.

All holders in Q4 2021All holders in Q3 2021

13F holders of XFOR: Q3 2021 compared with Q4 2021
MeasureQ3 2021Of which not filed for Q4 2021Q4 2021Change
Holders52252+2
Shares16.2M337.7K17.6M+1.70M (+10.7%)
Value$85.7M$1.79M$40.2M−$43.7M (−52.1%)

2 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (13)

Institutions that held X4 Pharmaceuticals, Inc at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to XFOR in Q4 2021
InstitutionSharesValue% of portfolio
Point72 Asset Management, L.P.1,633,204$3.74M0.02%
Tri Locum Partners LP1,578,947$3.62M1.45%
Kennedy Capital Management, Inc.131,501$301.0K0.01%
Acadian Asset Management LLC57,270$130.0K0.00%
XTX Topco Ltd19,938$46.0K0.03%
Connor, Clark & Lunn Investment Management Ltd.12,786$29.0K0.00%
Engineers Gate Manager LP11,874$27.0K0.00%
Moody Lynn & Lieberson, LLC10,000$23.0K0.00%
Mayflower Financial Advisors, LLC10,000$23.0K0.00%
High Net Worth Advisory Group LLC1,100$3.00K0.00%
UBS Group AG668$2.00K0.00%
Rockefeller Capital Management L.P.1,000$2.00K0.00%
JPMorgan Chase & Co203$00.00%

Sold out (11)

Institutions that held X4 Pharmaceuticals, Inc at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of XFOR in Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Altium Capital Management LP804,598$4.26M
Monashee Investment Management LLC561,421$2.97M
Driehaus Capital Management LLC505,752$2.67M
Ergoteles LLC68,938$365.0K
Hudson Bay Capital Management LP45,893$243.0K
HRT Financial LP34,719$183.0K
Minot Wealth Management LLC17,000$90.0K
Trexquant Investment LP16,625$88.0K
Tower Research Capital LLC (TRC)1,250$7.00K
IFP Advisors, Inc1,000$5.00K
Harbour Investments, Inc.10$0

Not filed for Q4 2021 yet (2)

Institutions that held X4 Pharmaceuticals, Inc at the end of Q3 2021 and haven't filed a 13F for Q4 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding XFOR in Q3 2021 that haven't filed for Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Polaris Venture Management Co. V, L.L.C.311,492$1.65M
Marshall Wace North America L.P.26,252$139.0K