Companies / Arrowhead Pharmaceuticals, Inc.
Arrowhead Pharmaceuticals, Inc.
Financials · FY2025
Ownership
141.3M shares outstanding · as of Jul 30, 2026
Ownership
| Insiders | 3.37% | 4,753,305 |
| 10%+ / strategic | 14.39% | 20,323,221 |
| Institutions | 68.54% | 96,813,940 |
| Public float | 13.71% | 19,364,001 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 4
View all →| Insider | % of shares | Shares |
|---|---|---|
Anzalone Christopher RichardCEOChief Executive Officer · Director | 2.69% | 3,792,739 |
| 0.39% | 547,408 | |
Hamilton James CChief Medical Officer | 0.17% | 236,958 |
Apel Daniel JosephChief Financial Officer | 0.12% | 176,200 |
Institutional holders 427
View all →| Holder | Value | % of shares |
|---|---|---|
| $1.21B | 10.50% | |
| $1.02B | 10.83% | |
| $705.39M | 7.52% | |
| $464.17M | 4.03% | |
| $432.89M | 4.62% | |
| $274.50M | 3.03% | |
| $167.54M | 1.79% | |
| $124.95M | 1.41% | |
| $121.69M | 1.30% | |
| $117.47M | 1.25% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q2 2026 as of | BlackRock, Inc. 13F manager | Trim | Common stock | $-528.84M | -6.5M -30.43% | 14,830,553 10.50% of shares | high |
| Q1 2026 as of | Norges Bank 13F manager | Exit | Common stock | $-113.16M | -1.7M -100.00% | 0 | high |
| Q1 2026 as of | Arrowstreet Capital, Limited Partnership 13F manager | Trim | Common stock | $-94.10M | -1.5M -71.88% | 587,125 0.42% of shares | high |
| Q1 2026 as of | D. E. Shaw & Co., Inc. 13F manager | Add | Common stock | $65.07M | +1.0M +710.49% | 1,183,838 0.84% of shares | high |
| Q1 2026 as of | Geode Capital Management, LLC 13F manager | Add | Common stock | $65.04M | +1.0M +31.05% | 4,278,828 3.03% of shares | high |
| Q1 2026 as of | Renaissance Technologies LLC 13F manager | New | Common stock | $64.99M | +1.0M | 1,036,495 0.73% of shares | high |
| Q2 2026 as of | State Street Corporation 13F manager | Trim | Common stock | $-57.81M | -709K -11.07% | 5,694,640 4.03% of shares | high |
| Q1 2026 as of | BNP Paribas Financial Markets 13F manager | Add | Common stock | $38.26M | +610K +1510.47% | 650,599 0.46% of shares | medium |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| BlackRock, Inc. | Passive13G/A | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| ARWR | — | 04280A100 |