Who owns ARROWHEAD PHARMACEUTICALS, INC.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ARWR from SEC Form 13F filings across 498 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 498 institutions disclosed 119.3M shares of ARROWHEAD PHARMACEUTICALS, INC. worth $9.73B — about 83.2% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
498
13F holders
$9.73B
value, 2026 filers
83.2%
of shares outstanding (119.3M sh)
131
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ARWR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 14.8M | $1.21B | 0.0% | 10.3% | -18.3% |
| 2 | Avoro Capital Advisors LLC | 11.4M | $925.6M | 8.3% | 7.9% | +6.1% |
| 3 | FMR LLC | 8.0M | $655.3M | 0.0% | 5.6% | +10.6% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 6.4M | $517.7M | 0.0% | 4.4% | -11.1% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 6.1M | $498.1M | 0.0% | 4.3% | +1.3% |
| 6 | STATE STREET CORP | 5.7M | $464.2M | 0.0% | 4% | -12.3% |
| 7 | NORGES BANKNEW | 3.9M | $317.6M | 0.0% | 2.7% | new |
| 8 | Invesco Ltd. | 3.9M | $316.6M | 0.0% | 2.7% | +18.4% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 3.5M | $298.8M | 0.0% | 2.5% | -17.5% |
| 10 | FRED ALGER MANAGEMENT, LLC | 3.3M | $269.1M | 0.9% | 2.3% | -1.2% |
| 11 | BAKER BROS. ADVISORS LP | 2.0M | $162.4M | 0.8% | 1.4% | 0.0% |
| 12 | Siren, L.L.C. | 1.7M | $139.8M | 2.8% | 1.2% | +6.2% |
| 13 | Vestal Point Capital, LP | 1.6M | $128.4M | 3.0% | 1.1% | -30.8% |
| 14 | DEERFIELD MANAGEMENT COMPANY, L.P. | 1.4M | $113.2M | 1.2% | 1% | -11.7% |
| 15 | FIRST TRUST ADVISORS LP | 1.4M | $110.3M | 0.1% | 0.9% | +807.1% |
| 16 | Driehaus Capital Management LLC | 1.4M | $110.1M | 0.6% | 0.9% | +13.5% |
| 17 | Jupiter Topco LLCNEW | 1.2M | $99.6M | 0.0% | 0.9% | new |
| 18 | NORTHERN TRUST CORP | 1.2M | $97.2M | 0.0% | 0.8% | -28.0% |
| 19 | DIMENSIONAL FUND ADVISORS LP | 1.2M | $96.3M | 0.0% | 0.8% | +94.2% |
| 20 | GOLDMAN SACHS GROUP INC | 1.2M | $93.7M | 0.0% | 0.8% | -33.9% |
| 21 | BANK OF AMERICA CORP /DE/ | 1.1M | $92.9M | 0.0% | 0.8% | +7.1% |
| 22 | Hood River Capital Management LLC | 1.1M | $91.4M | 0.7% | 0.8% | +6.1% |
| 23 | Holocene Advisors, LPNEW | 1.1M | $90.2M | 0.2% | 0.8% | new |
| 24 | MORGAN STANLEY | 1.1M | $88.4M | 0.0% | 0.8% | +12.9% |
| 25 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 964,479 | $78.6M | 0.0% | 0.7% | -27.5% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.