Backer Marianne De

ARWR

Backer Marianne De serves as director, officer: Chief Executive Officer at Arrowhead Pharmaceuticals, Inc. (ARWR). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

4 trades

$1.16M

Net Position

Net Seller

$1.16M

Companies Traded

VIR, ARWR

Active Period

Jun 2021 – Feb 2026

4 total trades

Most Recent

Sell VIR

Feb 26, 2026 · $140.7K

Backer Marianne De's Insider Trading at Arrowhead Pharmaceuticals, Inc. (ARWR)

Buys

0 · $0.00

Sells

2 · $740.4K

Total Shares Bought

Total Shares Sold

9,500

ARWR Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Jan 3, 2022↗	Sell	4,500	$64.71	$291.2K	0
Jun 24, 2021↗	Sell	5,000	$89.85	$449.3K	0

Backer Marianne De's Insider Trading at Vir Biotechnology, Inc. (VIR)

Buys

0 · $0.00

Sells

2 · $424.5K

Total Shares Bought

Total Shares Sold

52,840

VIR Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 26, 2026↗	Sell	14,762	$9.53	$140.7K	1,020,700
Feb 24, 2026↗	Sell	38,078	$7.45	$283.8K	1,035,470

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James C Hamilton

officer: Chief Medical Officer

ARWRSell · Mar 5, 2026

SATO VICKI L

director

VIRSell · Mar 2, 2026

Mark Eisner

officer: EVP and Chief Medical Officer

VIRSell · Feb 25, 2026

Verneuil Vanina de

General Counsel

VIRSell · Feb 23, 2026

Mark Eisner

VIRSell · Feb 23, 2026

Brent Sabatini

Principal Accounting Officer

VIRSell · Feb 23, 2026

Jason O'Byrne

CFO

VIRSell · Feb 23, 2026

Brent Sabatini

SVP, Chief Accounting Officer

VIRSell · Feb 13, 2026

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