Institutional Holders (2026 Q2)
490 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in ARWR. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Western Financial Corp/CA | 19.58% | 820,239 | $66.9M |
| 2 | Avoro Capital Advisors LLC | 8.31% | 11,355,555 | $925.6M |
| 3 | M28 Capital Management LP | 6.37% | 36,851 | $3.0M |
| 4 | Act Capital Management, LLC | 5.86% | 110,100 | $9.0M |
| 5 | Privium Fund Management B.V. | 3.51% | 234,222 | $19.1M |
| 6 | Wealth Effects LLC | 3.24% | 147,300 | $12.0M |
| 7 | Vestal Point Capital, LP | 3.00% | 1,575,000 | $128.4M |
| 8 | Siren, L.L.C. | 2.83% | 1,715,476 | $139.8M |
| 9 | Evolutionary Tree Capital Management, LLC | 2.21% | 14,368 | $1.2M |
| 10 | Tetragon Partners GP Ltd | 1.67% | 130,484 | $10.6M |
| 11 | Exome Asset Management LLC | 1.62% | 32,214 | $2.6M |
| 12 | Orion Investment Co | 1.57% | 65,831 | $5.4M |
| 13 | Dorsey Wright & Associates | 1.35% | 97,466 | $7.9M |
| 14 | Platinum Investment Management Ltd | 1.30% | 64,752 | $5.3M |
| 15 | Summit Partners Public Asset Management, LLC | 1.19% | 830,247 | $67.7M |
| 16 | Deerfield Management Company, L.P. | 1.18% | 1,389,055 | $113.2M |
| 17 | Pinion Investment Advisors, LLC | 1.16% | 75,000 | $6.1M |
| 18 | Rhenman & Partners Asset Management AB | 0.98% | 128,000 | $10.4M |
| 19 | PFM Health Sciences, LP | 0.92% | 131,667 | $10.7M |
| 20 | Fred Alger Management, LLC | 0.90% | 3,301,919 | $269.1M |
| 21 | Ikarian Capital, LLC | 0.88% | 100,000 | $8.2M |
| 22 | Baker BROS. Advisors LP | 0.81% | 1,992,783 | $162.4M |
| 23 | Hood River Capital Management LLC | 0.66% | 1,120,747 | $91.4M |
| 24 | Integral Health Asset Management, LLC | 0.64% | 200,000 | $16.3M |
| 25 | Driehaus Capital Management LLC | 0.64% | 1,350,556 | $110.1M |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|