ARWR
Arrowhead Pharmaceuticals, Inc. · Healthcare · Biotechnology
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2026
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | 0 | 25.13K | $1.54M | n/a | n/a |
| Q2 2026 | 133 | +6 | 82.38M | $6.30B | +14 | −7 |
| Q1 2026 | 129 | +9 | 82.68M | $4.92B | +14 | −6 |
| Q4 2025 | 119 | +2 | 83.16M | $5.52B | +3 | n/a |
| Q3 2025 | 18 | 0 | 61.93M | $2.14B | +1 | −2 |
| Q2 2025 | 16 | +2 | 54.75M | $865.08M | +2 | n/a |
| Q1 2025 | 11 | +1 | 14.99M | $191.04M | +1 | n/a |
| Q4 2024 | 10 | -1 | 13.46M | $253.12M | +1 | −2 |
| Q3 2024 | 10 | +1 | 7.88M | $152.69M | +1 | n/a |
| Q2 2024 | 9 | n/a | 6.44M | $167.29M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wealth Enhancement Advisory… | 21.69K | 0.0% | $1.32M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | Assenagon Asset Management S.A. | 3.27K | -99.2% | $213,891 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 3 | TD Waterhouse Canada Inc. | 171 | +5.6% | $11,074 | 0.0% | ▲ Add | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 430 holders, 120.06M shares, $7.40B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Director · 2.00K sh · $173,920
Director · 11.60K sh · $1.01M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology