O'Brien Patrick
COO
O'Brien Patrick has filed 2 SEC Form 4 filings (23 transaction rows) across 1 company, with disclosures dating back to 2026. 2 of those filings fall inside the rolling window. Most recent filing: Jan 8, 2026.
On the most recent filing, O'Brien Patrick is listed as COO at ARROWHEAD PHARMACEUTICALS, INC. Inside the rolling window, O'Brien Patrick reported no open-market purchases and 1 open-market sale totaling $3.1M in ARWR.
Companies traded
Other insiders at ARWR
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$3.1M
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has O'Brien Patrick made?
O'Brien Patrick has filed 2 SEC Form 4 filings (23 transaction rows) across 1 company since 2026.
Which companies does O'Brien Patrick trade?
O'Brien Patrick has filed SEC Form 4 disclosures for 1 company, including ARWR.
When was O'Brien Patrick's most recent SEC Form 4 filing?
O'Brien Patrick's most recent SEC Form 4 filing on Tracefour is dated Jan 8, 2026.
What is O'Brien Patrick's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, O'Brien Patrick is listed as COO.
What is O'Brien Patrick's total buy and sell value in the current window?
Inside the rolling retention window, O'Brien Patrick bought $0 and sold $3.1M based on SEC Form 4 filings.
What was O'Brien Patrick's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 49,493 ARWR shares on 2026-01-05, worth $3.1M, per SEC Form 4 filings.