Arcturus Therapeutics
Develops mRNA medicines for rare diseases and a CSL-partnered COVID-19 vaccine.
$15.10
After-hours close−0.09 (−0.59%)
At close$15.19(−6.06%)
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Breakdown13F · Form 4
Institutions 88.72%25.22M sharesInsiders 0.79%224.0K sharesOther 10.49%2.98M shares
Shares outstanding 28.42M · Float 26.15M · 92.0% free float
Institutions13F, as of Jun 30, 2026
139 holders · 25.22M shares · 21 new positions · 76 increased · 40 reduced · 10 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Federated Hermes, Inc. | 3.30M | 11.62% | 0 | Aug 12, 2026 |
| Ark Investment Management LLC | 2.90M | 10.21% | +132.1K | Aug 14, 2026 |
| BlackRock, Inc. | 2.61M | 9.20% | +731 | Aug 7, 2026 |
| Sumitomo Mitsui Trust Group, Inc. | 1.96M | 6.91% | −325.8K | Jul 30, 2026 |
| Nikko Asset Management Americas, Inc. | 1.96M | 6.90% | −328.5K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 1.11M | 3.92% | +7.9K | Aug 13, 2026 |
| Two Sigma Investments, LP | 1.09M | 3.84% | +9.4K | Aug 14, 2026 |
| Vanguard Portfolio Management LLC | 951.6K | 3.35% | −26.3K | Aug 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Federated Hermes, Inc. | 11.63% | 3.30M | 13G | Jan 8, 2026 ↗ |
| ARK Investment Management LLC | 10.37% | 2.95M | 13G | May 7, 2026 ↗ |
| Nikko Asset Management Co., Ltd. (“NAM”)incl. Sumitomo Mitsui Trust Group, Inc. (“SMTG”) | 8.56% | 2.32M | 13G | Nov 5, 2024 ↗ |
| BlackRock, Inc. | 7.80% | 2.10M | 13G | Apr 23, 2025 ↗ |
| Amova Asset Management Americas, Inc. | 7.20% | 1.95M | 13G | Nov 13, 2025 ↗ |
| Sumitomo Mitsui Trust Group, Inc. | 7.20% | 1.95M | 13G | Oct 27, 2025 ↗ |
| Nikko Asset Management Americas, Inc. | 7.10% | 1.93M | 13G | May 12, 2025 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Andy Sassine | director, officer: Chief Financial Officer | 221.8K | 0.78% | Aug 20, 2025 |
| Joseph Roberts | officer: Controller | 2.2K | 0.01% | Dec 19, 2025 |
10 people have not refiled in the last 18 months (3.40M shares), so they are not in the figure above
Latest trades
No open-market trades in the last 12 months.
CongressHouse and Senate disclosures
Not reported.