Sellas Life Sciences Group Inc (SLS)
Healthcare
Biotechnology
—
10.00 $
-2.7%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Sellas Life Sciences Group Inc (SLS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 94.2% of the shares are freely tradable; institutional investors hold 27.6%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
27.6%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
0.9%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
94.2%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
32.4%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
197Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 7.97 | 12,198,410 | +61.8 | 03/31/2026 |
| Vanguard Group Inc | 5.53 | 8,467,400 | +23.8 | 12/31/2025 |
| State Street Corp | 5.48 | 8,396,356 | +283.7 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.92 | 7,525,929 | +0.0 | 03/31/2026 |
| Geode Capital Management, LLC | 2.56 | 3,912,606 | +27.1 | 03/31/2026 |
| Marshall Wace Asset Management Ltd | 1.33 | 2,037,162 | +52.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 3.56 | 5,444,567 | +9.6 | 04/30/2026 |
| State Street® SPDR® S&P® Biotech ETF | 3.39 | 5,189,599 | -0.6 | 05/31/2026 |
| iShares Russell 2000 ETF | 2.68 | 4,105,332 | +0.9 | 05/29/2026 |
| Vanguard Institutional Extnd Mkt Idx Tr | 1.26 | 1,922,476 | +1.1 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.