Herr Stefan (0001722440)

Mailing Address BOXBERGRING HEIDELBERG 2M 69126 Ownership Reports for Issuers: (Click on issuer name to see other owners for the issuer, or CIK for issuer filings.) Issuer Filings Transaction Date Type of Owner Arsanis, Inc. Current Name:X4 Pharmaceuticals, Inc 0001501697 2017-11-15 10 percent owner

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You should consult the original filing for complete information. Hyperlinks to the forms are provided for your convenience.

Acquistion or Disposition	Transaction Date	Deemed Execution Date	Issuer	Form	Transaction Type	Direct or Indirect Ownership	Number of Securities Transacted	Number of Securities Owned	Line Number	Issuer CIK	Security Name

http://www.sec.gov/cgi-bin/own-disp

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