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 Officer2026-04-2310,000$75.00
$750.00kSell
Daniel Joseph ApelChief Financial Officer2026-04-228,730$71.92
$627.86kSell
Daniel Joseph ApelChief Financial Officer2026-04-221,157$70.45
$81.51kSell
Daniel Joseph ApelChief Financial Officer2026-04-223,208$70.11
$224.91kSell
James C. HamiltonChief Medical Officer2026-03-0510,000$64.19
$641.90kSell
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
Patrick 1. ObrienCOO2026-01-0511,842$63.84
$755.99kSell

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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$1.50BInstitution
Vanguard Group Inc10.92%15,293,121$1.08BInstitution
Avoro Capital Advisors LLC7.59%10,625,000$749.38MInstitution
Fmr LLC4.66%6,520,408$459.88MInstitution
State Street Corp4.57%6,403,830$451.66MInstitution
David M. Knott4.01%5,609,690$395.65MInsider
Christopher Richard Anzalone2.71%3,792,739$267.50MInsider
Geode Capital Management LLC2.33%3,264,963$230.28MInstitution
Slate Path Capital LP1.80%2,523,500$177.98MInstitution
Baker Bros Advisors LP1.55%2,175,645$153.45MInstitution

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ARWR vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ARWR82.92%9.83%Net SellingNet Selling
BMRN97.84%1.79%Net SellingNet Selling
AXSM62.01%37.99%Net SellingNet Selling
ABVX71.68%0.00%
EXEL94.72%5.28%Net SellingNet Selling

Arrowhead Pharmaceuticals Stock Ownership FAQ

Who owns Arrowhead Pharmaceuticals?

Arrowhead Pharmaceuticals (NASDAQ: ARWR) is owned by 82.92% institutional shareholders, 9.83% Arrowhead Pharmaceuticals insiders, and 7.26% 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 $412.20M.

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