LEFF JONATHAN S

Links are shown as observed in a source registry — we do not currently hold ownership end dates, so a link here may since have ended. Each row carries its source; check it before relying on currency.

Every officer, person with significant control and cross-company role we hold, resolved into one entry per party. Roles are registry records, not a claim of control.

• ●

  ALLOS THERAPEUTICS

  Also holds roles at 50 other companies

  • MALEK ERICofficer
  • JOHNSON DOUGLAS Gofficer
  • HART MICHAEL Edirector

  +47 more companies
• ●

  ALPINE IMMUNE SCIENCES, INC.

  Also holds roles at 83 other companies

  • Decheng Capital Global Healthcare GP, LLCtenpercentowner
  • Thompson Peter A.director
  • FUHS ULRICH MARTINofficer

  +80 more companies
• ●

  ALTUS PHARMACEUTICALS INC.

  Also holds roles at 58 other companies

  • ALDRICH RICHARDdirector
  • NOMURA INTERNATIONAL PLCtenpercentowner
  • MARGOLIN ALEXEY Lofficer

  +55 more companies
• ●

  ARS Pharmaceuticals, Inc.

  Also holds roles at 75 other companies

  • Karas Ericofficer
  • Shawver Lauradirector
  • Tanimoto Sarina10% owner

  +72 more companies
• ●

  AVEXIS, INC.

  Also holds roles at 35 other companies

  • KASPAR BRIAN K.director
  • JOHANNESEN MICHAELofficer
  • MODI RICKofficer

  +32 more companies
• ●

  BiomX Inc.

  Also holds roles at 75 other companies

  • Cystic Fibrosis Foundation10% owner
  • DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)director
  • Deerfield Private Design Fund V, L.P.director

  +72 more companies
• ●

  EMAIL REAL ESTATE COM INC

  Also holds roles at 48 other companies

  • WEISER MICHAELdirector
  • AHN MARK Jdirector
  • AHN MARK Jofficer

  +45 more companies
• ●

  INSPIRE PHARMACEUTICALS INC

  Also holds roles at 44 other companies

  • SHAFFER CHRISTY Ldirector
  • DEERFIELD SPECIAL SITUATIONS FUND, L.P.tenpercentownerother
  • KELLERMAN DONALD Jofficer

  +41 more companies
• ●

  INTERMUNE INC

  Also holds roles at 45 other companies

  • Kassberg Thomas Richardofficer
  • HEALY JAMESdirector
  • HAWLEY ROGERother

  +42 more companies
• ●

  Larimar Therapeutics, Inc.

  Also holds roles at 83 other companies

  • Shankar Gopiofficer
  • Clayton Russellofficer
  • BEN-MAIMON CAROLEofficer

  +80 more companies
• ●

  NEUROGEN CORP

  Also holds roles at 53 other companies

  • BUTLER ROBERT Ndirector
  • NOVITCH MARK M Ddirector
  • SAXTON CRAIGdirector

  +50 more companies
• ●

  Protara Therapeutics, Inc.

  Also holds roles at 83 other companies

  • Zummo Jacquelineofficer
  • Shefferman Jesseofficer
  • Fabbio Patrickofficer

  +80 more companies
• ●

  SUNESIS PHARMACEUTICALS INC

  Also holds roles at 107 other companies

  • WARBURG PINCUS & COtenpercentowner
  • WARBURG PINCUS EQUITY PARTNERS LPtenpercentowner
  • BIOGEN IDEC MA INCtenpercentowner

  +104 more companies
• ●

  ZYMOGENETICS INC

  Also holds roles at 36 other companies

  • YOUNG MARK Dofficer
  • SHEMA SUZANNE Mofficer
  • CARTER BRUCE L Aofficer

  +33 more companies

14 parties · 0 current. Ceased and resigned records are retained as history.