Javascript is disabled or is not supported by your browser. Please upgrade your browser or enable Javascript to navigate the interface properly.

Siren »

X4 Pharmaceuticals shares owned by Siren

Quarter-by-quarter ownership of X4 Pharmaceuticals (XFOR) shares owned by Siren from 13F filings

Historical chart of Siren investment in X4 Pharmaceuticals

Tip: Access up to 7 years of quarterly data

All positions including X4 Pharmaceuticals held by Siren consolidated in one spreadsheet with up to 7 years of data

Download as csv

Download consolidated filings csv

Download as Excel

Download consolidated filings xlsx

Quarterly reported holdings in X4 Pharmaceuticals by Siren

Quarter filed	Position value	Share count	Share price at filing
2025-12-31	$6.0M	1.5M	4.00

More positions owned by Siren

Scholar Rock Hldg Corp (SRRK)

Kymera Therapeutics (KYMR)

BeOne Medicines Sponsored Ads (ONC)

Edgewise Therapeutics (EWTX)

Revolution Medicines (RVMD)

Centessa Pharmaceuticals Sponsored Ads (CNTA)

Arrowhead Pharmaceuticals (ARWR)

Bicara Therapeutics (BCAX)

Olema Pharmaceuticals (OLMA)

Disc Medicine (IRON)

Structure Therapeutics Sponsored Ads (GPCR)

Tango Therapeutics (TNGX)

Arcus Biosciences Incorporated (RCUS)

Stoke Therapeutics (STOK)

Crinetics Pharmaceuticals In (CRNX)

View all positions for Siren

Top funds holding X4 Pharmaceuticals

Empery Asset Management

Bain Capital Life Sciences Investors

Saturn V Capital Management

Deep Track Capital

Rosalind Advisors

Nantahala Capital Management

Samsara BioCapital

Woodline Partners

Geode Capital Management

Kingdon Capital Management

View all funds holding X4 Pharmaceuticals

© 2026 stockzoa - Track 13F-HR Filings for Hedge Funds and Value Investors.

Disclaimers: stockzoa.com is not operated by a broker, a dealer, or a registered investment adviser. Under no circumstances does any information posted on stockzoa.com represent a recommendation to purchase or sell a stock. The information on this site is not intended to be, nor does it constitute, investment advice or recommendations. The information on this site is in no way guaranteed for completeness, accuracy or in any other way. In no event shall stockzoa.com be liable to any member, guest or third party for any damages of any kind arising out of the use of any content available on stockzoa.com, or relating to the use of, or inability to use, stockzoa.com or any content, including, without limitation, any investment losses, lost profits, lost opportunity, special, incidental, indirect, consequential or punitive damages. Past performance is a poor indicator of future performance.

Fund Directory: 1-9 A B C D E F G H I J K L M N O P Q R S T U V W X-Z