Arrowhead Pharmaceuticals, Inc. (ARWR) Insider Trading

Over the last 3 months, ARWR insiders made 0 open-market buys and 2 sales, a net sale of -$1.2M (SEC Form 4). Over the last 6 months, 323 institutions increased and 287 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
2
Net (3m)
-$1.2M
Insider trades by month Buys Sells
Dec
Jan
Mar
Apr
May
Aug
Context3-month price +8.4%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Aug 20, 2026OLUKOTUN ADEOYE YdirectorSell2,000$86.96
Aug 20, 2026PERRY MICHAEL SdirectorSell11,600$87.30
Jun 17, 2026Cohen Matthew GregorydirectorGrant11,882
May 14, 2026Lu HongbodirectorSell2,970$76.88
Apr 24, 2026Apel Daniel Josephofficer: Chief Financial OfficerSell8,730$71.92
Apr 24, 2026Apel Daniel Josephofficer: Chief Financial OfficerSell1,157$70.45
Apr 24, 2026Hamilton James Cofficer: Chief Medical OfficerSell10,000$75.00
Apr 24, 2026Apel Daniel Josephofficer: Chief Financial OfficerSell3,208$70.11
Mar 9, 2026Hamilton James Cofficer: Chief Medical OfficerSell10,000$64.19
Jan 8, 2026O'Brien Patrickofficer: COOGrant75,000
Jan 8, 2026Hamilton James Cofficer: Chief Medical OfficerGrant75,000
Jan 8, 2026Apel Daniel Josephofficer: Chief Financial OfficerGrant75,000
Jan 5, 2026O'Brien Patrickofficer: COOSell5,873$62.91
Jan 5, 2026O'Brien Patrickofficer: COOSell4,368$61.20
Jan 5, 2026O'Brien Patrickofficer: COOSell600$61.12
Jan 5, 2026Anzalone Christopher Richarddirector, officer: Chief Executive OfficerSell5,771$66.39
Jan 5, 2026Anzalone Christopher Richarddirector, officer: Chief Executive OfficerSell7,416$65.88
Jan 5, 2026Hamilton James Cofficer: Chief Medical OfficerSell309$68.00
Jan 5, 2026Hamilton James Cofficer: Chief Medical OfficerSell1,200$64.49
Jan 5, 2026Hamilton James Cofficer: Chief Medical OfficerSell12,711$63.95
Jan 5, 2026O'Brien Patrickofficer: COOSell900$66.01
Jan 5, 2026O'Brien Patrickofficer: COOSell2,700$64.44
Jan 5, 2026Hamilton James Cofficer: Chief Medical OfficerSell14,792$63.01
Jan 5, 2026O'Brien Patrickofficer: COOSell13,451$62.96
Jan 5, 2026Hamilton James Cofficer: Chief Medical OfficerSell437$65.97
Jan 5, 2026O'Brien Patrickofficer: COOSell313$68.00
Jan 5, 2026O'Brien Patrickofficer: COOSell46$68.00
Jan 5, 2026O'Brien Patrickofficer: COOSell11,842$63.84
Jan 5, 2026O'Brien Patrickofficer: COOSell6,164$62.23
Jan 5, 2026Hamilton James Cofficer: Chief Medical OfficerSell6,090$62.28

Source: ARWR SEC Form 4 filings, latest Aug 20, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their ARWR positions over the last 6 months (SEC Form 13F).

Increased
323
New positions
232
Reduced
287
Sold out
58
Largest moves
InstitutionActionSharesFiled
BLACKROCK, INC.Reduced18.2MMay 13, 2026
BlackRock, Inc.Reduced14.8MAug 7, 2026
Avoro Capital Advisors LLCIncreased11.4MAug 14, 2026
AVORO CAPITAL ADVISORS LLCReduced10.7MMay 15, 2026
AVORO CAPITAL ADVISORS LLCReduced10.6MMar 16, 2026
FMR LLCIncreased8.0MAug 13, 2026
FMR LLCIncreased7.3MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position7.1MMay 8, 2026
STATE STREET CORPIncreased6.5MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCReduced6.4MAug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased6.1MAug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position6.0MMay 15, 2026
STATE STREET CORPReduced5.7MAug 7, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased4.3MMay 15, 2026
NORGES BANKNew Position3.9MAug 12, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.