| 5.64% |
| 4 | Rubric Capital Management LP | 8.3M | $216.9M | 0.0% | 6.613% | 1.99% |
| 5 | Polar Capital Holdings Plc | 6.6M | $173.2M | +16.6% | 5.282% | 0.41% |
| 6 | STATE STREET CORP | 5.8M | $152.7M | -7.5% | 4.655% | 0.00% |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 5.0M | $130.8M | +2.4% | 3.988% | 0.00% |
| 8 | MORGAN STANLEY | 4.5M | $116.7M | +5.5% | 3.558% | 0.01% |
| 9 | JENNISON ASSOCIATES LLC | 4.2M | $110.6M | -15.3% | 3.373% | 0.07% |
| 10 | D. E. Shaw & Co., Inc. | 3.9M | $103.6M | +58.2% | 3.158% | 0.05% |
| 11 | UBS Group AG | 3.3M | $87.4M | +0.1% | 2.665% | 0.01% |
| 12 | BANK OF AMERICA CORP /DE/ | 3.0M | $78.3M | +34.5% | 2.388% | 0.01% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 3.0M | $78.2M | -2.1% | 2.384% | 0.00% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.4M | $63.7M | +24.3% | 1.942% | 0.00% |
| 15 | ORBIMED ADVISORS LLC | 2.0M | $53.5M | — | 1.632% | 0.99% |
| 16 | FRANKLIN RESOURCES INC | 1.9M | $50.6M | -16.0% | 1.544% | 0.01% |
| 17 | AMERICAN CENTURY COMPANIES INC | 1.9M | $50.5M | +31.6% | 1.539% | 0.02% |
| 18 | GOLDMAN SACHS GROUP INC | 1.7M | $43.7M | +4.1% | 1.334% | 0.00% |
| 19 | Jupiter Topco LLC | 1.4M | $37.0M | — | 1.128% | 0.02% |
| 20 | OBERWEIS ASSET MANAGEMENT INC/ | 1.4M | $36.0M | +0.5% | 1.098% | 0.74% |
| 21 | GILDER GAGNON HOWE & CO LLC | 1.3M | $34.4M | -69.5% | 1.050% | 0.36% |
| 22 | CITADEL ADVISORS LLC | 1.3M | $33.3M | +1191.8% | 1.014% | 0.00% |
| 23 | Pivotal bioVenture Partners Investment Advisor LLC | 1.3M | $33.2M | -6.7% | 1.012% | 10.78% |
| 24 | BAMCO INC /NY/ | 1.3M | $32.9M | +16.9% | 1.002% | 0.05% |
| 25 | FEDERATED HERMES, INC. | 1.1M | $29.5M | +4.4% | 0.899% | 0.04% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in ARQT — a direct measure of their conviction.
| 105.20% |
| 5.99 pp |
| $1.90B |
| +0.7% |
| Q4 2024 | 205 | +12% | 111.19% | +3.44 pp | $1.89B | +66% |
| Q3 2024 | 183 | — | 107.75% | — | $1.13B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
37 institutions opened new positions in ARQT during Q2 2026, while 35 fully exited. 157 added to existing positions and 69 trimmed.
ARQT institutional ownership fell by 0.66 percentage points quarter-over-quarter, with a net change of +2 holders.
The top 10 institutions account for 54.7% of all reported 13F value in ARQT, and the top 25 account for 76.4%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.