Reporting Manager
KINGDON CAPITAL MANAGEMENT, L.L.C.
Symbol
JSPR
Shares outstanding
15M shares
Disclosed Ownership
765K shares
Ownership
5.1%
Form type
SCHEDULE 13G
Date filed
7/11/2025, 12:30 PM
Date of event
Jul 3, 2025
Next filing
Nov 12, 2025

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
KINGDON CAPITAL MANAGEMENT, L.L.C. 5.1% 765K 0 765K By: /s/ Richard Weinstein Richard Weinstein / Chief Operating Officer & General Counsel
Mark Kingdon 5.1% 765K 0 765K By: /s/ Mark Kingdon Mark Kingdon