Reporting Manager
Riverstyx Capital Management LLC
Symbol
CTHR
Shares outstanding
4,472,403 shares
Disclosed Ownership
532,216 shares
Ownership
12%
Form type
SCHEDULE 13D/A
Filing time
24 Sep 2025, 09:14:51 UTC
Date of event
23 Sep 2025
Previous filing
16 Jul 2025

Reporting Managers (7)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Riverstyx Capital Management LLC 12% 532,216 0 532,216 Ben Franklin Manager of its GP 0002015561
The Riverstyx Fund, LP 12% 532,216 0 532,216 Ben Franklin Manager
Riverstyx Fund, GP 12% 532,216 0 532,216 Ben Franklin Manager
Ben Franklin 12% 532,216 100 532,216 Ben Franklin Ben Franklin
Pham Duc Hoang 12% 532,216 299,900 532,216 Duc Pham Individual 0002079212
Michael R. Levin 12% 532,216 110 532,216 Michael R. Levin Individual
Lloyd M. Sems 12% 532,216 0 532,216 Lloyd M. Sems Individual