Robert W Duggan

Co-Chief Executive Officer, Director, 10% owner, Summit Therapeutics Inc.; Director, 10% owner, Pulse Biosciences, Inc.

Bought, 12 months

$64.4M

Sold, 12 months

$0.0M

Companies

Latest trade

Jun 12, 2026

Companies

Summit Therapeutics Inc.Co-Chief Executive Officer, Director, 10% owner +$51.9M Pulse Biosciences, Inc.Director, 10% owner +$13.0M

Trades

SMMT Bought 3,810,000 shares at $13.12 $50.0M Jun 12

SMMT Bought 100,000 shares at $14.60 $1.5M Jun 4

PLSE Bought 660,233 shares at $19.69 $13.0M May 11

SMMT Bought 26,680 shares at $18.74 $0.5M Oct 21

Open-market trades from SEC Form 4 only: no grants, option exercises or gifts. People are matched by the name on their filings, so two people with the same name share this page. For information only — not investment advice.