DUGGAN ROBERT W — SEC Form 4 Insider Trading Activity
Summary
Updated Jul 16, 2026
DUGGAN ROBERT W has filed 5 SEC Form 4 filings across 2 companies in the last 90 days — buying. Lifetime open-market purchases: $87.97M. Historical track record: 4/5 stars across 8 tracked purchases.
Profile
Robert W. Duggan is a prominent American biotech investor and entrepreneur. He is best known as the founder and longtime executive of Pharmacyclics, a pharmaceutical company that was acquired by AbbVie in 2015 for about $21 billion, a transaction that significantly boosted his prominence in the biotech investment community. In more recent SEC filings, Duggan has been identified as holding leadership roles at Pulse Biosciences, Inc. and Summit Therapeutics Inc., where he serves as Co-Chief Executive Officer and Director. Through philanthropy and strategic investments, he has been a notable figure in the biotech industry for decades.
Founder and former CEO/Chairman of Pharmacyclics, Inc.
Led Pharmacyclics through growth and its 2015 acquisition by AbbVie for approximately $21 billion
Active biotech investor and executive, with leadership roles in Pulse Biosciences and Summit Therapeutics
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
Robert W. Duggan is a prominent American biotech investor and entrepreneur. He is best known as the founder and longtime executive of Pharmacyclics, a pharmaceutical company that was acquired by AbbVie in 2015 for about $21 billion, a transaction that significantly boosted his prominence in the biotech investment community. In more recent SEC filings, Duggan has been identified…
How many SEC Form 4 filings has DUGGAN ROBERT W submitted recently?
5 primary Form 4 filings in the last 90 days, covering 2 companies.
Has DUGGAN ROBERT W been buying or selling stock?
Recorded transactions: 12 open-market purchases ($87.97M) and 0 open-market sales () across all tracked filings.
How accurate is DUGGAN ROBERT W's historical track record?
Across 8 tracked purchases, DUGGAN ROBERT W averaged +871.2% avg 30-day return with a 7500% 30-day win rate. InsiderAlpha rates the track record at 4/5 stars.
Where can I see all of DUGGAN ROBERT W's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
