Filing Manager
L.P. ACORN BIOVENTURES
Reporting Manager
Anders Hove
Symbol
JSPR
Shares outstanding
27,913,938 shares
Disclosed Ownership
1,786,492 shares
Ownership
6.4%
Form type
SCHEDULE 13G
Filing time
02 Dec 2025, 10:23:49 UTC
Date of event
01 Dec 2025
Next filing
26 Jan 2026

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
ACORN BIOVENTURES, L.P. 2.7% 750,326 0 750,326 Anders Hove Manager of General Partner
ACORN CAPITAL ADVISORS GP, LLC 2.7% 750,326 0 750,326 Anders Hove Manager
ACORN BIOVENTURES 2, L.P. 3.7% 1,036,166 0 1,036,166 Anders Hove Manager of General Partner
Acorn Capital Advisors GP 2, LLC 3.7% 1,036,166 0 1,036,166 Anders Hove Manager
Anders Hove 6.4% 1,786,492 0 1,786,492 Anders Hove Individually