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SMMT
Ticker

Summit Therapeutics Inc.

SMMT · Healthcare · Summit Therapeutics Inc., a biopharmaceutical company, focuses on discovery, development, and commercialization of patient, physician, care…

Summit Therapeutics Inc. (SMMT), in the Healthcare sector, has 5 disclosed filings on Paydirt over the trailing twelve months from 3 corporate insiders: 5 purchases and 0 sales. Filers took a median of 0 days from execution to disclosure, and the most recent trade was executed Jun 12 and filed Jun 12. The most active filer was Robert W Duggan with 2 filings. Data as of Nov 8 2026.

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Filings, ttm
5
5 buys · 0 sells
Traders, ttm
3
3 insiders
Volume, ttmiDollar value disclosed in the window
$103.6M
estimated for Congress, as filed for insiders
Median delay
0d
execution to disclosure
Last traded
Jun 12
Filed Jun 12
ADViAverage daily dollar volume
$66.4M
market data
Share price · 12M
$13.52 (-26.1%)
$26.38$19.46$12.55Nov 10 2025Mar 30Aug 14

Adjusted for splits and dividends.

Volume by month
$103.6M$51.8M$0Dec 2024Jun 2025Dec 2025Jun 2026Sep 2025 · buys $11.8MOct 2025 · buys $11.0MJun 2026 · buys $103.6M
Buys $126.4M Sells $0

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed · past 24 months
RD Robert W Duggan Director 4 filings · 4 buys, 0 sales MZ Mahkam Zanganeh Co-Chief Executive Officer 4 filings · 4 buys, 0 sales MS Manmeet Singh Soni COO and CFO 1 filing · 1 buy, 0 sales YX Yu Xia Director 1 filing · 1 buy, 0 sales
Recent filings
Mahkam ZanganehPURCHASE Co-Chief Executive Officer $50.0M
3,810,000 sh × $13.12
Exec Jun 12
Filed Jun 12 · 2:35 PM ET Robert W DugganPURCHASE Co-Chief Executive Officer $50.0M
3,810,000 sh × $13.12
Exec Jun 12
Filed Jun 12 · 12:28 PM ET Robert W DugganPURCHASE Co-Chief Executive Officer $1.5M
100,000 sh × $14.60
Exec Jun 4
Filed Jun 4 · 6:08 PM ET Mahkam ZanganehPURCHASE Co-Chief Executive Officer $1.5M
100,000 sh × $14.60
Exec Jun 4
Filed Jun 4 · 5:45 PM ET Manmeet Singh SoniPURCHASE COO and CFO $722K
50,000 sh across 2 lots
Exec Jun 4
Filed Jun 4 · 4:40 PM ET Yu XiaPURCHASE Director $10.0M
533,617 sh × $18.74
Exec Oct 21 2025
Filed Oct 23 2025 · 9:06 PM ET Robert W DugganPURCHASE Co-Chief Executive Officer $500K
26,680 sh × $18.74
Exec Oct 21 2025
Filed Oct 23 2025 · 4:08 PM ET Mahkam ZanganehPURCHASE Co-Chief Executive Officer $500K
26,680 sh × $18.74
Exec Oct 21 2025
Filed Oct 23 2025 · 4:06 PM ET Mahkam ZanganehPURCHASE Co-Chief Executive Officer $5.9M
333,394 sh × $17.68
Exec Sep 10 2025
Filed Sep 11 2025 · 7:36 PM ET Robert W DugganPURCHASE Co-Chief Executive Officer $5.9M
333,394 sh × $17.68
Exec Sep 10 2025
Filed Sep 11 2025 · 7:32 PM ET