Reporting Manager
Kingdon Capital Management, L.L.C.
Symbol
JSPR
Shares outstanding
28,188,191 shares
Disclosed Ownership
1,324,845 shares
Ownership
4.7%
Form type
SCHEDULE 13G/A
Filing time
12 Nov 2025, 13:04:58 UTC
Date of event
30 Sep 2025
Previous filing
11 Jul 2025

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Kingdon Capital Management, L.L.C. 4.7% 1,324,845 0 1,324,845 By: /s/ Richard Weinstein Richard Weinstein / Chief Operating Officer & General Counsel
Mark Kingdon 4.7% 1,324,845 0 1,324,845 By: /s/ Mark Kingdon Mark Kingdon