Filing Manager
Linden Capital L.P.
Reporting Manager
Linden Capital L.P.
Symbol
ARTC
Shares outstanding
22,857,143 shares
Disclosed Ownership
1,600,000 shares
Ownership
7%
Form type
SCHEDULE 13G
Filing time
12 Jan 2026, 07:50:27 UTC
Date of event
08 Jan 2026

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Linden Capital L.P. 7% 1,600,000 0 1,600,000 /S/ Saul Ahn Saul Ahn, Authorized Signatory
Linden GP LLC 7% 1,600,000 0 1,600,000 /S/ Saul Ahn Saul Ahn, Authorized Signatory
Linden Advisors LP 7% 1,600,000 0 1,600,000 /S/ Saul Ahn Saul Ahn, General Counsel
Siu Min Wong 7% 1,600,000 0 1,600,000 /S/ Saul Ahn Saul Ahn, Attorney-in-Fact for Siu Min Wong**