Summit Therapeutics ($SMMT) Insider Trading & Smart Money Activity

Summit Therapeutics Inc. · Biotechnology · Latest filing Sep 29, 2026

Summit Therapeutics Inc. ($SMMT) has 4 insider trades and 1 analyst rating on file. In the last 12 months on the open market, 2 insiders bought ($199.95M) and no insider sold, net +$199.95M.

Insider buyers (12 mo): 2
Insider sellers (12 mo): 0
Net insider $ (12 mo): +$199.95M
Congress trades (12 mo): 0
13F moves on file: 0
Analyst ratings on file: 1

SMMT insider buying and selling by quarter

Quarter	Insider buys	Congress buys / sales	13F added / cut
Q1 2026	0	0 / 0	0 / 0
Q2 2026	4 · $199.95M	0 / 0	0 / 0
Q3 2026	0	0 / 0	0 / 0
Q4 2026	0	0 / 0	0 / 0

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All SMMT insider, congress, 13F and analyst activity

Date	Source	Who	Action	Shares	Value / amount	Story
Sep 29, 2026	Analyst	Citigroup	Reiterates to Buy		PT $43	—
Jun 12, 2026	Insider	Mahkam ZanganehCo-Chief Executive Officer	Buy (Open-market buy)	3.81M sh	$49.99M	—
Jun 12, 2026	Insider	Mahkam ZanganehCo-Chief Executive Officer	Buy (Open-market buy)	3.81M sh	$49.99M	—
Jun 12, 2026	Insider	Robert DugganCo-Chief Executive Officer	Buy (Open-market buy)	3.81M sh	$49.99M	—
Jun 12, 2026	Insider	Robert DugganCo-Chief Executive Officer	Buy (Open-market buy)	3.81M sh	$49.99M	—

1W / 1M / 6M = how SMMT moved from the trade or filing date.

Insider trading in SMMT: who is buying and selling

Insider	Role	Trades	Open-market net	Shares held	Last trade
Mahkam Zanganeh	Co-Chief Executive Officer	2	+$99.97M		Jun 12, 2026
Robert Duggan	Co-Chief Executive Officer	2	+$99.97M		Jun 12, 2026

Analyst ratings on SMMT

Date	Firm	Action	Rating	Price target	1W	1M	6M	Story
Sep 29, 2026	Citigroup	Reiterates	Buy	$40 → $43				—

Frequently asked questions

Are SMMT insiders buying or selling?

Over the last 12 months 2 insiders made 4 open-market purchases worth $199.95M and 0 insiders made 0 open-market sales worth $0, a net +$199.95M.

What is the latest insider trade in SMMT?

Mahkam Zanganeh, Co-Chief Executive Officer filed a buy (open-market buy) of 3.81M sh worth $49.99M on Jun 12, 2026.

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Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.

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