InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (2 ops.)
Browse the detailed record of transactions filed by O'Brien Patrick, Chief Operating Officer. Director active across 2 companies, notably Arrowhead Pharmaceuticals, INC.. Cumulatively, 7 disclosures have been recorded. Total volume traded: €1.3m. The latest transaction was filed on 31 December 2025 — Don. Regulator: SEC (Form 4). The full history is openly available.
Declarations7 total
0560 shares0
Common Stock
SEC:0001627183-26-000001·
0560 shares0
Common Stock
SEC:0001627183-26-000001:0·
016,781 shares0
CLASS A ORDINARY SHARES
SEC:0001385613-22-000049:0·
€666,57012,434 shares@ €53.60870.0062% mcap81.4% of flow
Common Stock
SEC:0001209191-22-002599·
€666,57012,434 shares@ €53.60870.0062% mcap40.7% of flow
Common Stock
SEC:0001209191-22-002599:0·
€152,05328,000 shares@ €5.43050.0014% mcap18.6% of flow
Common Stock
SEC:0001209191-22-001308·
€152,05328,000 shares@ €5.43050.0014% mcap9.3% of flow
Common Stock
SEC:0001209191-22-001308:0·
7 of 7 declarations
About O'Brien Patrick
Patrick O'Brien serves as Chief Operating Officer and General Counsel at ARROWHEAD PHARMACEUTICALS, INC. He oversees the daily operations of the company while ensuring legal and regulatory compliance. Patrick brings valuable expertise in risk management and business strategy, contributing to Arrowhead's mission of developing innovative therapies. His role is essential in ensuring operational efficiency and protecting the company's interests.
