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SUMMIT THERAPEUTICS INC (SMMT)

Institutional ownership, SEC filings and insider activity

Sector: Healthcare & Pharma · SEC CIK 0001599298 · EDGAR filings · Updated 2026-07-23

SUMMIT THERAPEUTICS INC (SMMT) has reported institutional ownership of 14.9%, with 224 institutional managers holding positions valued at $2.25B per the latest 13F reporting period. SEC filings include an active substantial-doubt (going concern) disclosure per the filings.

Filings this week (5)

• 2026-07-23 — Current report (8-K) filed
• 2026-07-23 — Prospectus supplement (424B5) filed
• 2026-07-23 — Quarterly report (10-Q) filed
• 2026-07-23 — Current report (8-K) filed
• 2026-07-22 — Current report (8-K) filed

Every filing links to the official SEC document. Real-time filing alerts for this company are available inside the app.

Latest updates

• 2026-06-12 — Current report (8-K) filed

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, SUMMIT THERAPEUTICS INC has 224 institutional holders and institutional ownership of 14.9%.

Insider activity

Insiders reported 17 transactions (7 buys, 0 sells) across 5 reporting insiders, with a net reported value of $23.0M.

Data flags from SEC filings

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