Robert W. Duggan - Insider Trading & Ownership

Location: 611 South Fort Harrison Ave, Suite 306, Clearwater, FL
Summary: The estimated net worth of Robert W. Duggan is at least $12.2B dollars as of October 23, 2025. Robert W. Duggan is the Co-Chief Executive Officer, Director, 10%+ Owner of Summit Therapeutics Inc. and owns shares of Summit Therapeutics Inc. (SMMT) stock worth about $11.5B. Robert W. Duggan is the Director, 10%+ Owner of PULSE BIOSCIENCES, INC. and owns shares of PULSE BIOSCIENCES, INC. (PLSE) stock worth about $706M.
Signature: /s/ Robert W. Duggan
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Ownership of Robert W. Duggan

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
SMMT	Summit Therapeutics Inc.	Co-Chief Executive Officer, Director, 10%+ Owner	$11.5B	+$6.48M	+0.06%	Oct 21, 2025
PLSE	PULSE BIOSCIENCES, INC.	Director, 10%+ Owner	$706M	+$3.21M	+0.46%	Sep 10, 2025

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.