Sellas Life Sciences Group
SLS · NASDAQ
$11.98+$1.49 (+14.20%)TodayMarket closed ·
Prev close $10.49
Who owns SLS
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 27.3% of SLS’s shares.
- BlackRock Institutional Trust Company, N.A.6.9%
- State Street Investment Management (US)6.6%
- Vanguard Capital Management, LLC4.2%
- Geode Capital Management, L.L.C.2.5%
- Next 6 largest institutions7.1%
- All other shareholders72.7%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 13.53M | 6.88% |
| State Street Investment Management (US) | 13.00M | 6.61% |
| Vanguard Capital Management, LLC | 8.23M | 4.18% |
| Geode Capital Management, L.L.C. | 4.88M | 2.48% |
| Anson Funds Management LP. | 4.50M | 2.29% |
| Edward Jones | 2.30M | 1.17% |
| Vanguard Portfolio Management, LLC | 2.16M | 1.10% |
| Susquehanna International Group, LLP | 2.05M | 1.04% |
| Northern Trust Investments, Inc. | 1.56M | 0.79% |
| Stergiou (Angelos M) | 1.38M | 0.70% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| State Street SPDR S&P Biotech ETF | 9.12M | 4.64% |
| Vanguard Total Stock Market Index Fund | 5.93M | 3.02% |
| iShares Russell 2000 ETF | 4.91M | 2.50% |
| Vanguard Extended Market Index Fund | 2.15M | 1.09% |
| Fidelity Small Cap Index Fund | 2.05M | 1.04% |
Insider trades
Form 4 filings by officers, directors and large holders
Insiders made no open-market buys or sales of SLS in the last 6 months.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Stergiou Angelos M. | Award | 1.06M | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 55.13M
- Days to cover
- 9.45
- % of shares outstanding
- 28.04%
- Average daily volume
- 5.84M
- Change since last report
- −6.7%
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