SELLAS Life Sciences Group
Develops licensed oncology candidates GPS and SLS009 for cancer indications.
$13.47
After-hours close+0.29 (+2.20%)
At close$13.18(−13.35%)
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Breakdown13F · Form 4
Institutions 41.44%77.09M sharesInsiders 1.80%3.35M sharesOther 56.76%105.60M shares
Shares outstanding 186.03M · Float 183.79M · 98.8% free float
Institutions13F, as of Jun 30, 2026
233 holders · 77.09M shares · 69 new positions · 152 increased · 31 reduced · 26 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 15.07M | 8.10% | +2.87M | Aug 7, 2026 |
| State Street Corp | 13.00M | 6.99% | +4.60M | Aug 7, 2026 |
| Vanguard Capital Management LLC | 8.23M | 4.42% | +700.2K | Aug 13, 2026 |
| Geode Capital Management, LLC | 4.88M | 2.63% | +971.6K | Aug 12, 2026 |
| Anson Funds Management LP | 4.50M | 2.42% | +4.50Mnew | Aug 13, 2026 |
| Jones Financial Companies LLLP | 2.30M | 1.24% | +629.5K | Aug 14, 2026 |
| Vanguard Portfolio Management LLC | 2.16M | 1.16% | +698.3K | Aug 13, 2026 |
| Susquehanna International Group, LLP | 2.05M | 1.10% | +1.65M | Aug 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| State Street Corporation | 7.00% | 13.00M | 13G | Aug 7, 2026 ↗ |
| BlackRock, Inc. | 6.80% | 12.14M | 13G | Apr 24, 2026 ↗ |
| Vanguard Capital Management | 5.19% | 9.67M | 13G | Jul 31, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Angelos M. Stergiou | director, officer: President and CEO | 1.76M | 0.95% | Jun 18, 2026 |
| Dragan Cicic | officer: SVP, Chief Development Officer | 557.8K | 0.30% | Jan 9, 2026 |
| John Thomas Burns | officer: CFO | 554.3K | 0.30% | Jan 9, 2026 |
| Katherine Bach Kalin | director | 154.4K | 0.08% | Jan 9, 2026 |
| Jane Wasman | director | 92.9K | 0.05% | Jan 9, 2026 |
| Robert L. van Nostrand | director | 82.9K | 0.04% | Jan 9, 2026 |
| David A. Scheinberg | director | 73.1K | 0.04% | Jan 9, 2026 |
| John Varian | director | 72.9K | 0.04% | Jan 9, 2026 |
1 ten-percent owner holds 2.9K shares by Form 4, outside the officers-and-directors figure above · 32 people have not refiled in the last 18 months (533.9K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Nov 19, 2025 | Katherine Bach Kalindirector | Purchase | 63,400 | $1.59 | 104,400 |
CongressHouse and Senate disclosures
Not reported.