O'brien Patrick Insider Trading Activity

Corporate InsiderCOO · CIK 1627183

Total trades

$3.1M

Total volume

Jan 5, 2026

Last activity

ARWR

ARROWHEAD PHARMACEUTICALS, INC.

O'brien Patrick has been net-selling over the last 12 months with 0 purchases and 11 sales across 1 company.

ARWR is the most-traded position with 11 trades. The largest single transaction was a sale of ARWR for $847K on Jan 5, 2026.

Performance Scorecard

Forward stock performance after each transaction by O'brien Patrick. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIOD	AVG BUY RETURN	AVG SELL AVOIDED	SUCCESS RATE	TRADES
30 days	—	-6.4%	0%	11
90 days	—	+4.5%	91%	11
120 days	—	-17.1%	0%	11

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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ARWR · ARROWHEAD PHARMACEUTICALS, INC.

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Recent Trades

DATE	TICKER	TYPE	SHARES	PRICE	VALUE	ROLE
Jan 5, 2026	ARWR	Sell	4,368	$61.20	$267K	COO
Jan 5, 2026	ARWR	Sell	6,164	$62.23	$384K	COO
Jan 5, 2026	ARWR	Sell	13,451	$62.96	$847K	COO
Jan 5, 2026	ARWR	Sell	11,842	$63.84	$756K	COO
Jan 5, 2026	ARWR	Sell	2,700	$64.44	$174K	COO
Jan 5, 2026	ARWR	Sell	900	$66.01	$59K	COO
Jan 5, 2026	ARWR	Sell	313	$68.00	$21K	COO
Jan 5, 2026	ARWR	Sell	600	$61.12	$37K	COO
Jan 5, 2026	ARWR	Sell	5,873	$62.91	$369K	COO
Jan 5, 2026	ARWR	Sell	2,336	$64.04	$150K	COO
Jan 5, 2026	ARWR	Sell	46	$68.00	$3K	COO