Sellas Life Sciences Group ISLS
13F holders, Q4 2024 (December 31)31holders −2
4new positions
8sold out
1famous investor
$1.04avg. 13F price*
At the end of Q4 2024, 31 institutions reported holding Sellas Life Sciences Group I (SLS) in their 13F filings, down 2 from Q3 2024. 4 opened new positions and 8 sold out. The largest holders were Vanguard Group Inc. ($2.4M), Anson Funds Management LP ($1.2M) and Geode Capital Management, LLC ($763K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Sellas Life Sciences Group I
- CUSIP
- 81642T209
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $174K |
| Exits | 8 | $493K |
All 13F filers, Q3 2024 → Q4 2024: 1,248,982 shares bought and 446,982 shares sold, net +802,000 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 31 holders
| Vanguard Group Inc. | 0.00% | No change | 2,292,857 | $2.4M |
| Anson Funds Management LP | 0.16% | Add +50.2% | 1,192,266 | $1.2M |
| Geode Capital Management, LLC | 0.00% | Add +21.2% | 733,546 | $763K |
| Citadel Advisors | 0.00% | Add +925.6% | 485,317 | $505K |
| BlackRock, Inc. | 0.00% | Add +2.9% | 444,208 | $462K |
| Opus Capital Group, LLC | 0.03% | Add +5.5% | 238,500 | $248K |
| State Street Corp. | 0.00% | Add +30.5% | 227,729 | $237K |
| Northern Trust Corp. | 0.00% | Add +33.6% | 134,721 | $140K |
| UBS Group AG | 0.00% | New | 127,821 | $133K |
| XTX Topco Ltd | 0.00% | Reduce -14.9% | 53,426 | $56K |
| LPL Financial LLC | 0.00% | No change | 51,894 | $54K |
| Mariner, LLC | 0.00% | Add +6.7% | 50,609 | $53K |
| Virtu Financial LLC | 0.00% | Reduce -48.1% | 41,155 | $43K |
| Independent Financial Group, LLC | 0.00% | No change | 23,250 | $24K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 16,238 | $17K |
| Morgan Stanley | 0.00% | Reduce -9.5% | 15,778 | $16K |
| Goldman Sachs Group Inc. | 0.00% | New | 15,683 | $16K |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -22.5% | 12,054 | $13K |
| Jane Street Group, LLC | 0.00% | New | 12,304 | $13K |
| Equitable Holdings, Inc. | 0.00% | No change | 12,060 | $13K |
| Prosperity Financial Group, Inc. | 0.01% | New | 11,500 | $12K |
| Nemes Rush Group LLC | 0.00% | No change | 10,000 | $10K |
| SBI Securities Co., Ltd. | 0.00% | — | 5,464 | $6K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +43.0% | 5,305 | $6K |
| R Squared Ltd | 0.00% | — | 2,197 | $2K |
| Osaic Holdings, Inc. | 0.00% | No change | 1,660 | $2K |
| Bank of America Corp. | 0.00% | Add +8.8% | 572 | $595 |
| Jones Financial Companies LLLP | 0.00% | No change | 374 | $389 |
| Parkside Financial Bank & Trust | 0.00% | No change | 2 | $3 |
| FMR LLC | 0.00% | Reduce -99.5% | 1 | $1 |
| Royal Bank of Canada | 0.00% | No change | 200 | $0 |
"% of holder's portfolio" is SLS's weight in each manager's 13F, not the share of Sellas Life Sciences Group I the manager owns.