See how company executives and directors have been buying or selling shares over the past 30 days. Insider trading activity can help investors better understand company leadership's actions.
No Insider Transactions found for Summit Therapeutics Inc.
Browse insider buying and selling activity reported to the SEC over the past year, including who traded, when they traded, and the value of each transaction.
DATE INSIDER |
INSIDER | TYPE | SHARES | PRICE | SHARES PRICE VALUE |
|---|---|---|---|---|---|
Jun 12, 2026 DUGGAN ROBERT W |
DUGGAN ROBERT W
Co-Chief Executive Officer
|
Buy |
3,810,000 | $13.12 | 3,810,000 $13.12 $49,987,200 |
Jun 12, 2026 Zanganeh Maky |
Zanganeh Maky
Co-Chief Executive Officer
|
Buy |
3,810,000 | $13.12 | 3,810,000 $13.12 $49,987,200 |
Jun 04, 2026 Soni Manmeet Singh |
Soni Manmeet Singh
COO and CFO
|
Buy |
25,000 | $14.43 | 25,000 $14.43 $360,750 |
Jun 04, 2026 Soni Manmeet Singh |
Soni Manmeet Singh
COO and CFO
|
Buy |
25,000 | $14.46 | 25,000 $14.46 $361,500 |
Jun 04, 2026 DUGGAN ROBERT W |
DUGGAN ROBERT W
Co-Chief Executive Officer
|
Buy |
100,000 | $14.60 | 100,000 $14.60 $1,460,000 |
Jun 04, 2026 Zanganeh Maky |
Zanganeh Maky
Co-Chief Executive Officer
|
Buy |
100,000 | $14.60 | 100,000 $14.60 $1,460,000 |
View older insider trading records reported to the SEC to research long-term buying and selling trends.
DATE INSIDER |
INSIDER | TYPE | SHARES | PRICE | SHARES PRICE VALUE |
|---|---|---|---|---|---|
Oct 21, 2025 Xia Yu |
Xia Yu
|
Buy |
533,617 | $18.74 | 533,617 $18.74 $0 |
Oct 21, 2025 DUGGAN ROBERT W |
DUGGAN ROBERT W
Co-Chief Executive Officer
|
Buy |
26,680 | $18.74 | 26,680 $18.74 $0 |
Oct 21, 2025 DUGGAN ROBERT W |
DUGGAN ROBERT W
Co-Chief Executive Officer
|
Buy |
266,808 | $18.74 | 266,808 $18.74 $0 |
Oct 21, 2025 DUGGAN ROBERT W |
DUGGAN ROBERT W
Co-Chief Executive Officer
|
Buy |
13,980,789 | $18.74 | 13,980,789 $18.74 $0 |
Oct 21, 2025 Zanganeh Maky |
Zanganeh Maky
Co-Chief Executive Officer
|
Buy |
266,808 | $18.74 | 266,808 $18.74 $0 |
Oct 21, 2025 Zanganeh Maky |
Zanganeh Maky
Co-Chief Executive Officer
|
Buy |
26,680 | $18.74 | 26,680 $18.74 $0 |
Oct 21, 2025 Zanganeh Maky |
Zanganeh Maky
Co-Chief Executive Officer
|
Buy |
13,980,789 | $18.74 | 13,980,789 $18.74 $0 |
Oct 21, 2025 Anand Bhaskar |
Anand Bhaskar
CAO
|
Buy |
26,680 | $18.74 | 26,680 $18.74 $0 |
Oct 21, 2025 Soni Manmeet Singh |
Soni Manmeet Singh
COO and CFO
|
Buy |
53,361 | $18.74 | 53,361 $18.74 $0 |
Sep 11, 2025 DUGGAN ROBERT W |
DUGGAN ROBERT W
Co-Chief Executive Officer
|
Buy |
5,000 | $18.07 | 5,000 $18.07 $90,350 |
Sep 11, 2025 Zanganeh Maky |
Zanganeh Maky
Co-Chief Executive Officer
|
Buy |
5,000 | $18.07 | 5,000 $18.07 $90,350 |
Sep 10, 2025 DUGGAN ROBERT W |
DUGGAN ROBERT W
Co-Chief Executive Officer
|
Buy |
333,394 | $17.68 | 333,394 $17.68 $5,894,406 |
Sep 10, 2025 Zanganeh Maky |
Zanganeh Maky
Co-Chief Executive Officer
|
Buy |
333,394 | $17.68 | 333,394 $17.68 $5,894,406 |
Sep 11, 2024 Anand Bhaskar |
Anand Bhaskar
CAO
|
Buy |
22,026 | $22.70 | 22,026 $22.70 $0 |
Sep 11, 2024 Soni Manmeet Singh |
Soni Manmeet Singh
COO and CFO
|
Buy |
44,052 | $22.70 | 44,052 $22.70 $0 |
Sep 11, 2024 Zanganeh Maky |
Zanganeh Maky
Co-Chief Executive Officer
|
Buy |
44,052 | $22.70 | 44,052 $22.70 $0 |
Sep 11, 2024 DUGGAN ROBERT W |
DUGGAN ROBERT W
Co-Chief Executive Officer
|
Buy |
3,325,991 | $22.70 | 3,325,991 $22.70 $0 |
Sep 11, 2024 Huber Jeff |
Huber Jeff
|
Buy |
44,052 | $22.70 | 44,052 $22.70 $0 |
Mar 27, 2024 Zanganeh Maky |
Zanganeh Maky
CEO
|
Buy |
20,000 | $3.71 | 20,000 $3.71 $74,200 |
Mar 27, 2024 Zanganeh Maky |
Zanganeh Maky
CEO
|
Buy |
34,321 | $3.72 | 34,321 $3.72 $127,674 |
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