X4 PHARMACEUTICALS, INC. - Common Stock, par value $0.001 per share (XFOR)

Q: What does CUSIP 98420X103 represent in this 13F holders report?

CUSIP 98420X103 is the security identifier for XFOR - X4 PHARMACEUTICALS, INC. - Common Stock, par value $0.001 per share used to aggregate holder disclosures.

Q: How many institutions held XFOR - X4 PHARMACEUTICALS, INC. - Common Stock, par value $0.001 per share in Q3 2019?

49 institutional investors reported XFOR - X4 PHARMACEUTICALS, INC. - Common Stock, par value $0.001 per share for Q3 2019. Use the holders table for investor-level position and value details.

CUSIP: 98420X103

Q3 2019 13F Holders as of 30 Sep 2019

Security type / class: Equity / Common Stock, par value $0.001 per share
Shares outstanding: 94,372,096
Total 13F shares: 7,738,772
Share change: +143,132
Total reported value: $98,353,473
Reported price per share: $12.71
Number of holders: 49
Value change: +$1,731,349
Number of buys: 33
Number of sells: 10

Security key

98420X103

Report period

Q3 2019

Institutions

Top holders

XFOR full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2019 Previous quarter: Q2 2019 X4 Pharmaceuticals, Inc SEC filings X4 Pharmaceuticals, Inc company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 98420X103

Newer quarter: Q4 2019 Previous quarter: Q2 2019

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Ownership snapshot

Top reported holders of XFOR - X4 PHARMACEUTICALS, INC. - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder

ORBIMED ADVISORS LLC

13D/G signal

—

Evidence rows

Latest as of

30 Jun 2019

13F Lead comparable stake: 0.99% Showing 1-6 of 15 holder rows.

Rank 1 holder

ORBIMED ADVISORS LLC

13F

Ownership: 0.99%
Position: $14.05M

13F

Rank 2 holder

FMR LLC

13F

Ownership: 0.95%
Position: $13.5M

13F

Rank 3 holder

Cormorant Asset Management, LP

13F

Ownership: 0.94%
Position: $13.36M

13F

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
ORBIMED ADVISORS LLC	13F Company 13F	0.99%	$14,047,000 936,493 shares	—	30 Jun 2019
FMR LLC	13F Company 13F	0.95%	$13,500,000 900,000 shares	—	30 Jun 2019
Cormorant Asset Management, LP	13F Company 13F	0.94%	$13,356,000 890,387 shares	—	30 Jun 2019
RA CAPITAL MANAGEMENT, L.P.	13F Company 13F	0.91%	$12,921,000 861,393 shares	—	30 Jun 2019
BVF INC/IL	13F Company 13F	0.62%	$8,708,000 580,500 shares	—	30 Jun 2019
DEERFIELD MANAGEMENT COMPANY, L.P.	13F Company 13F	0.6%	$8,475,000 565,000 shares	—	30 Jun 2019

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2019

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

7,738,772

Rows available

Investor	Option	Weight %	Change %	Reported value	* Price	Shares	Share Change	Activity	Report Period

^* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.

Compare Q3 2019 vs Q2 2019 Across Filers

Q2 2019 holders

Q3 2019 holders

Holder diff

Investor	Q2 2019 Shares	Q3 2019 Shares	Share Diff	Share Chg %	Q2 2019 value	Q3 2019 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend