InsiderFlow

DUGGAN ROBERT W

SMMT

DUGGAN ROBERT W serves as director, 10 percent owner, officer: Co-Chief Executive Officer at Summit Therapeutics Inc. (SMMT). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

24 trades

$742.11M

Total Sells

0 trades

$0.00

Net Position

Net Buyer

$742.11M

Companies Traded

2

SMMT, PLSE

Active Period

May 2021 – Jun 2026

24 total trades

Most Recent

Buy SMMT

Jun 12, 2026 · $49.99M

DUGGAN ROBERT W's Insider Trading at Summit Therapeutics Inc. (SMMT)

Buys

6 · $598.82M

Sells

0 · $0.00

Total Shares Bought

486,641,684

Total Shares Sold

0

SMMT Price Chart
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DateTypeValue
Jun 12, 2026 Buy$49.99M
Jun 4, 2026 Buy$1.46M
Oct 21, 2025 Buy$500.0K
Mar 8, 2023 Buy$395.31M
Aug 18, 2022 Buy$92.00M
May 14, 2021 Buy$59.56M

DUGGAN ROBERT W's Insider Trading at Pulse Biosciences, Inc. (PLSE)

Buys

18 · $143.28M

Sells

0 · $0.00

Total Shares Bought

15,118,504

Total Shares Sold

0

PLSE Price Chart
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DateTypeValue
May 11, 2026 Buy$13.00M
Sep 12, 2025 Buy$2.79M
Dec 17, 2024 Buy$1.73M
Dec 13, 2024 Buy$972.3K
Dec 14, 2023 Buy$164.7K
Dec 13, 2023 Buy$843.5K
Dec 12, 2023 Buy$1.11M
Dec 11, 2023 Buy$687.9K
Dec 8, 2023 Buy$750.3K
Dec 7, 2023 Buy$616.6K
Dec 6, 2023 Buy$280.3K
Dec 5, 2023 Buy$413.6K
Dec 4, 2023 Buy$1.39M
Dec 1, 2023 Buy$2.05M
Nov 30, 2023 Buy$1.12M
Nov 20, 2023 Buy$123.5K
May 10, 2023 Buy$65.25M
Jul 2, 2021 Buy$50.00M