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O'Brien Patrick

COOCIK 0001627183

Largest Purchase

No open-market purchases in the recent filings.

Profile

Filings
2
Buy transactions
0
Sell transactions
12
Companies
1
Active
2026

Across 2 filings between 2026, O'Brien Patrick, COO, has disclosed $3.1M in transactions — all concentrated in ARROWHEAD PHARMACEUTICALS, INC. (ARWR). Their disclosed trades are heavily weighted toward selling$0 in buys and $3.1M in sells. Data is sourced from official SEC Form 3, 4, and 5 filings.

Trading History

2 loaded
Jan 8ARWR
ARROWHEAD PHARMACEUTICALS, INC.
O'Brien PatrickCOOGrant$0
Jan 5ARWR
ARROWHEAD PHARMACEUTICALS, INC.
O'Brien PatrickCOOSell$3.1M

2 filings