Reporting Manager
Vivo Opportunity Fund Holdings, L.P.
Symbol
KTTA
Shares outstanding
175,780,450 shares
Disclosed Ownership
17,560,467 shares
Ownership
10%
Form type
SCHEDULE 13G
Filing time
05 Dec 2025, 16:00:24 UTC
Date of event
01 Dec 2025

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Vivo Opportunity Fund Holdings, L.P. 10% 17,560,467 17,560,467 0 /s/ Kevin Dai Kevin Dai/Managing Member of Vivo Opportunity, LLC, General Partner
Vivo Opportunity, LLC 10% 17,560,467 17,560,467 0 /s/ Kevin Dai Kevin Dai/Managing Member
Vivo Opportunity Cayman Fund, L.P. 10% 1,772,867 1,772,867 0 /s/ Kevin Dai Kevin Dai/Managing Member of Vivo Opportunity Cayman, LLC, General Partner
Vivo Opportunity Cayman, LLC 10% 1,772,867 1,772,867 0 /s/ Kevin Dai Kevin Dai/Managing Member