Robert W. Duggan

Director & Co-Chief Executive Officer

Director & Co-Chief Executive Officer at Summit Therapeutics Inc., filing insider transactions between 2025-09-10 and 2026-06-12. Also reports transactions at 1 other company.

Total Purchases

$70.9M

6 transactions

Total Sales

—

0 transactions

Companies Traded

6 total filings

Active Since

2025-09-10

Last: 2026-06-12

Companies

SMMT2026-06-12

Summit Therapeutics Inc.

↑ $57.9M (5)

PLSE2026-05-11

PULSE BIOSCIENCES, INC.

↑ $13.0M (1)

Other Reporting Insiders at Summit Therapeutics Inc.

Mahkam Zanganeh
Director & Co-Chief Executive Officer
Last filing 2026-06-12
Manmeet Singh Soni
Director & COO and CFO
Last filing 2026-06-04
Yu Xia
Director
Last filing 2025-10-21

Transaction History

Date	Ticker	Type	Shares	Price	Value	Owned After
2026-06-12	SMMT	Purchase	3.81M	$13.12	$50.0M	573.88M	SEC ↗
2026-06-04	SMMT	Purchase	100.0K	$14.60	$1.5M	25.82M	SEC ↗
2026-05-11	PLSE	Purchase	660.2K	$19.69	$13.0M