Who's buying City Therapeutics, Inc.?

CTY insider buying, 13F and 13D filings

• Oct 26, 202613D stake (no activist plan)
  ARCH Venture Fund XII, L.P. (+6): New Schedule 13D: 25.6% stake
  AVF XII and the other Reporting Persons acquired the Common Stock for investment purposes. Depending on market conditions, the continuing evaluation of the business and prospects of the Issuer and other factors, AVF XII and other Reporting Persons may dispose of or acquire additi…
  View the filing on SEC EDGAR ↗
• Oct 19, 2026Form 4 · 10% owner
  ARCH Venture Partners XII, LLC (+5 joint) / Robert Nelsen (Director): Bought $3.1M on the open market
  170.0K shares at ~$18.00, traded 2026-10-19. Now holds 13.69M shares (stake up 1%). The same trade was reported in 2 filings; counted once.
  View the filing on SEC EDGAR ↗

Signals come from SEC filings: Form 4 (insiders, filed within 2 business days), 13F (fund holdings, up to 45 days after quarter end) and Schedule 13D (5%+ activist stakes). This page reports what the filings show; it is not investment advice.