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PB
Insider

Patrick O'Brien

COO and General Counsel

Patrick O'Brien (COO and General Counsel) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in Arrowhead Pharmaceuticals, Inc. (ARWR). The largest single filing was $2.9M of ARWR (46,734 sh across 7 lots, as filed), executed Jan 5.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
1
0 buys · 1 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$2.9M
shares × price, as filed
Last traded
Jan 5
Filed Jan 5

Median ADV $181.7M across their filed names

Open performance
Volume by month
$2.9M$1.5M$0Oct 2024Apr 2025Oct 2025Apr 2026Jan 2025 · sells $736KJan 2026 · sells $2.9M
Buys $0 Sells $3.7M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 1 filing

Sector per market data · by filing · past 12 months

Most traded names
ARWR Arrowhead Pharmaceuticals, Inc. ARWR · 0 buys · 2 sells 2 filings
Recent filings
ARWRSALE Arrowhead Pharmaceuticals, Inc. View filing → $2.9M
46,734 sh across 7 lots
Exec Jan 5
Filed Jan 5 · 5:30 PM ET
ARWRSALE Arrowhead Pharmaceuticals, Inc. View filing → $736K
37,184 sh across 3 lots
Exec Jan 6 2025
Filed Jan 7 2025 · 5:30 PM ET