Arrowhead Pharmaceuticals
ARWR · NASDAQ
$58.92+$1.69 (+2.95%)TodayMarket closed ·
Prev close $57.23
Who owns ARWR
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 46.4% of ARWR’s shares.
- BlackRock Institutional Trust Company, N.A.9.4%
- Avoro Capital Advisors LLC8.1%
- Fidelity Management & Research Company LLC5.7%
- Vanguard Portfolio Management, LLC4.5%
- Next 6 largest institutions18.7%
- All other shareholders53.6%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 13.26M | 9.41% |
| Avoro Capital Advisors LLC | 11.36M | 8.06% |
| Fidelity Management & Research Company LLC | 8.04M | 5.71% |
| Vanguard Portfolio Management, LLC | 6.35M | 4.51% |
| Vanguard Capital Management, LLC | 6.11M | 4.34% |
| State Street Investment Management (US) | 5.69M | 4.04% |
| Norges Bank Investment Management (NBIM) | 3.90M | 2.77% |
| Anzalone (Christopher Richard) | 3.79M | 2.69% |
| Geode Capital Management, L.L.C. | 3.53M | 2.51% |
| Fred Alger Management, LLC | 3.30M | 2.34% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Mid-Cap ETF | 4.93M | 3.50% |
| Vanguard Total Stock Market Index Fund | 4.26M | 3.02% |
| Statens Pensjonsfond Utland | 3.89M | 2.76% |
| Vanguard Small-Cap Index Fund | 3.08M | 2.18% |
| Fidelity Growth Company Fund | 2.55M | 1.81% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $3.10M (7 trades) of ARWR on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| PERRY MICHAEL S | Sale | 11.60K | $1.01M |
| OLUKOTUN ADEOYE Y | Sale | 2.00K | $173.92K |
| Lu Hongbo | Sale | 2.97K | $228.33K |
| Hamilton James C | Sale | 10.00K | $750.00K |
| Apel Daniel Joseph | Sale | 8.73K | $627.86K |
| Apel Daniel Joseph | Sale | 1.16K | $81.51K |
| Apel Daniel Joseph | Sale | 3.21K | $224.91K |
Short interest
Settled Sep 30, 2026
- Shares short
- 10.76M
- Days to cover
- 4.03
- % of shares outstanding
- 7.64%
- Average daily volume
- 2.67M
- Change since last report
- +16.0%
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