NASDAQ: ARWR
Arrowhead Pharmaceuticals Inc Stock Ownership - Who owns Arrowhead Pharmaceuticals?

Insider buying vs selling

Have Arrowhead Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
James C. HamiltonChief Medical Officer2026-03-0510,000$64.19
$641.90kSell
Patrick 1. ObrienCOO2026-01-0546$68.00
$3.13kSell
James C. HamiltonChief Medical Officer2026-01-054,625$61.24
$283.24kSell
Patrick 1. ObrienCOO2026-01-052,336$64.04
$149.60kSell
Patrick 1. ObrienCOO2026-01-055,873$62.91
$369.47kSell
Patrick 1. ObrienCOO2026-01-05900$62.25
$56.03kSell
Patrick 1. ObrienCOO2026-01-05600$61.12
$36.67kSell
Patrick 1. ObrienCOO2026-01-05313$68.00
$21.28kSell
Patrick 1. ObrienCOO2026-01-05900$66.01
$59.41kSell
Patrick 1. ObrienCOO2026-01-052,700$64.44
$173.99kSell

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Net Insider Buy/Sell (L12M) Ownership

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ARWR Shareholders

What type of owners hold Arrowhead Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc15.22%21,318,582$1.17BInstitution
Vanguard Group Inc10.92%15,293,121$841.89MInstitution
Avoro Capital Advisors LLC7.59%10,625,000$584.91MInstitution
Fmr LLC4.66%6,520,408$358.95MInstitution
State Street Corp4.57%6,403,830$352.53MInstitution
David M. Knott4.01%5,609,690$308.81MInsider
Christopher Richard Anzalone2.71%3,792,739$208.79MInsider
Geode Capital Management LLC2.33%3,264,963$179.74MInstitution
Slate Path Capital LP1.80%2,523,500$138.92MInstitution
Baker Bros Advisors LP1.55%2,175,645$119.77MInstitution

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ARWR vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ARWR82.92%9.84%Net SellingNet Selling
PCVX88.01%11.99%Net SellingNet Selling
AXSM62.26%37.74%Net SellingNet Selling
NUVL77.50%22.50%Net SellingNet Buying
TECH97.79%2.21%Net BuyingNet Selling

Arrowhead Pharmaceuticals Stock Ownership FAQ

Who owns Arrowhead Pharmaceuticals?

Arrowhead Pharmaceuticals (NASDAQ: ARWR) is owned by 82.92% institutional shareholders, 9.84% Arrowhead Pharmaceuticals insiders, and 7.24% retail investors. David M. Knott is the largest individual Arrowhead Pharmaceuticals shareholder, owning 5.61M shares representing 4.01% of the company. David M. Knott's Arrowhead Pharmaceuticals shares are currently valued at $321.83M.

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