NASDAQ:SMMT

Summit Therapeutics Stock Insider Trading

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*Your capital is at risk
$15.07
+0.210 (+1.41%)
At Close: Jun 03, 2026

Summit Therapeutics Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 99.90. In total, the insiders bought 136.34M and sold 631.36K SMMT shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power

(Last 100 transactions)
99.90
Buy 136.34M shares
Sell 631.36K shares
98% Buy Activity
Weak Positive Correlation
Buy Signal High Confidence
Jun 02, 2026

Analysis Breakdown:

  • Strongly supported by a very high Insider Power Score of 99.9.
  • Confidence increased due to high data reliability score of 100.
  • Supported by overwhelming buy-side pressure (98% buys).

Historical Insider Trades

Date Type Person Role Amount
Jan 08, 2026
Buy
Stock Option (right to buy)
A-Award
Anand Bhaskar
Chief Accounting Officer
Officer 30 000
Value: $564.9K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Cesano Alessandra
Director
Director 3 219
Value: $56.4K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Huber Jeff
Director
Director 35 000
Value: $613.2K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Xia Yu
Director
Director 35 000
Value: $613.2K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Booth Robert F.
Director
Director 7 180
Value: $125.8K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Booth Robert F.
Director
Director 35 000
Value: $613.2K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Zanganeh Mahkam
Co-chief Executive Officer
CEO / President 11 232
Value: $196.8K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Duggan Robert W
Co-chief Executive Officer
CEO / President 11 232
Value: $196.8K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Huber Jeff
Director
Director 9 885
Value: $173.2K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Ronaghi Mostafa
Director
Director 35 000
Value: $613.2K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Clark Kenneth A
Director
Director 35 000
Value: $613.2K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Clark Kenneth A
Director
Director 17 796
Value: $311.8K
Jan 02, 2026
Buy
Stock Option (right to buy)
A-Award
Cesano Alessandra
Director
Director 35 000
Value: $613.2K
Oct 21, 2025
Buy
Common Stock
A-Award
Zanganeh Mahkam
Co-chief Executive Officer
CEO / President 13 980 789
Value: $0.26B
Oct 21, 2025
Buy
Common Stock
P-Purchase
Duggan Robert W
Co-chief Executive Officer
CEO / President 26 680
Value: $500.0K
Oct 21, 2025
Buy
Common Stock
A-Award
Duggan Robert W
Co-chief Executive Officer
CEO / President 266 808
Value: $5.00M
Oct 21, 2025
Buy
Common Stock
P-Purchase
Xia Yu
Director
Director 533 617
Value: $10.00M
Oct 21, 2025
Buy
Common Stock
A-Award
Anand Bhaskar
Chief Accounting Officer
Officer 26 680
Value: $500.0K
Oct 21, 2025
Buy
Common Stock
A-Award
Soni Manmeet Singh
COO And CFO
C-Suite Officer 53 361
Value: $1,000.0K
Oct 21, 2025
Buy
Common Stock
A-Award
Duggan Robert W
Co-chief Executive Officer
CEO / President 13 980 789
Value: $0.26B
Oct 21, 2025
Buy
Common Stock
A-Award
Zanganeh Mahkam
Co-chief Executive Officer
CEO / President 266 808
Value: $5.00M
Oct 21, 2025
Buy
Common Stock
P-Purchase
Zanganeh Mahkam
Co-chief Executive Officer
CEO / President 26 680
Value: $500.0K
Sep 18, 2025
Buy
Stock Option (right to buy)
A-Award
Anand Bhaskar
Chief Accounting Officer
Officer 50 000
Value: $961.5K
Sep 18, 2025
Buy
Stock Option (right to buy)
A-Award
Anand Bhaskar
Chief Accounting Officer
Officer 50 000
Value: $961.5K
Sep 11, 2025
Buy
Common Stock
P-Purchase
Zanganeh Mahkam
Co-chief Executive Officer
CEO / President 5 000
Value: $90.4K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

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ABOUT SUMMIT THERAPEUTICS PLC
Summit Therapeutics
Summit Therapeutics Inc., a biopharmaceutical company, discovers, develops, and commercializes medicines to treat infectious diseases in the United States and Latin America. It conducts clinical programs focusing on Clostridioides difficile infection (CDI). The company's lead product candidate is ridinilazole, an orally administered small molecule antibiotic that is in Phase III clinical trials for the treatment of CDI. It also offers SMT-738, fo...
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