Duggan Robert W

Co-chief Executive Officer | Director, 10% Owner | Chief Executive Officer +1 more

2 companies

Insider Signal Score

Excellent

Trades Analyzed

12M Win Rate

63.6%

Avg 3M Return

+7.5%

Avg 12M Return

+48.4%

Duggan Robert W is a Co-chief Executive Officer at Summit Therapeutics Inc. with holdings across 2 companies. Recent SEC Form 4 filings include 14 buys and 0 sells.

Estimated insider holdings value: $10933.0M based on current market prices.

Holdings by Company

SMMTOct 21, 2025

Current Shares570.07M

Value$10.02B

Net Activity+497.14M

Bought: 497.14MSold: 0

PLSESep 10, 2025

Current Shares47.55M

Value$911.08M

Net Activity+18.21M

Bought: 18.21MSold: 0

Transaction History

Showing 10 filings

Date	Ticker	Role	Type	Shares	Price	Value	Chg%	3M	12M
Oct 21, 2025	SMMT Summit Therapeutics Inc.	Co-chief Executive Officer	Buy	26,680	$18.74	$499,983.20	+53.4%	-14.3%	-
Sep 11, 2025	SMMT Summit Therapeutics Inc.	Co-chief Executive Officer	Buy	338,394	$17.69	$5,984,755.92	-	-3.5%	-
Sep 10, 2025	PLSE Pulse Biosciences, Inc.	Director, 10% Owner	Buy	192,599	$14.48	$2,788,624.34	+0.1%	-7.3%	-
Dec 13, 2024	PLSE Pulse Biosciences, Inc.	Director, 10% Owner	Buy	55,256	$17.18	$949,298.08	+0.1%	-3.7%	-19.3%
Dec 12, 2024	PLSE Pulse Biosciences, Inc.	Director, 10% Owner	Buy	45,404	$17.13	$777,770.52	+0.1%	-0.1%	-16.9%
Dec 11, 2024	PLSE Pulse Biosciences, Inc.	Director, 10% Owner	Buy	56,054	$17.35	$972,343.96	-	-0.8%	-20.4%
Dec 12, 2023	PLSE Pulse Biosciences, Inc.	Director, 10% Owner	Buy	17,999	$9.15	$164,690.85	-	+13.7%	+83.9%
Dec 11, 2023	PLSE Pulse Biosciences, Inc.	Director, 10% Owner	Buy	90,118	$9.36	$843,504.48	+0.2%	+16.3%	+81.6%
Dec 8, 2023	PLSE Pulse Biosciences, Inc.	Director, 10% Owner	Buy	116,656	$9.54	$1,112,898.24	+0.3%	-0.3%	+108.3%
Dec 7, 2023	PLSE Pulse Biosciences, Inc.	Director, 10% Owner	Buy	74,852	$9.19	$687,889.88	+0.2%	-0.2%	+111.9%

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Insider	Role	Shares	Value	Buys	Sells

Date	Ticker	Insider	Role	Type	Shares	Price	Value	Chg%	SEC