Sellas Life Sciences Group, Inc. · NASDAQ:SLS
Sellas Life Sciences Group, Inc. shareholders
As of Jun 30, 2026, 187 institutions reported holding Sellas Life Sciences Group, Inc., 36.5% of its shares. Largest: BlackRock, State Street and Vanguard. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Sellas Life Sciences Group, Inc. | Change | Filed |
|---|---|---|---|---|
| BlackRock | 15.1M | 7.5% | +2.87M | Aug 7, 2026 |
| State Street | 13M | 6.4% | +4.6M | Aug 7, 2026 |
| Vanguard | 12M | 6.0% | +1.71M | Aug 13, 2026 |
| Geode Capital | 4.88M | 2.4% | +972K | Aug 12, 2026 |
| Anson Funds Management LP | 4.5M | 2.2% | new | Aug 13, 2026 |
| Jones Financial Companies Lllp | 2.3M | 1.1% | +629K | Aug 14, 2026 |
| Susquehanna | 2.05M | 1.0% | +1.65M | Aug 14, 2026 |
| Northern Trust | 1.62M | 0.80% | +344K | Aug 13, 2026 |
| UBS | 1.53M | 0.76% | +781K | Aug 13, 2026 |
| Morgan Stanley | 1.24M | 0.61% | −100K | Aug 13, 2026 |