SLS — SELLAS LIFE SCIENCES GROUP I
As of Q2 2026, 28 SEC-registered investment managers reported holding SLS (SELLAS LIFE SCIENCES GROUP I) in their latest 13F filings, with a combined reported value of $552.63M across 37.59M shares. That is +18.2% by share count (+5.79M shares) versus the previous quarter, while reported value moved +312.4%. Ownership is concentrated: the five largest holders account for 78.6% of reported value and the top ten for 90.1%.
Compared with the prior quarter, 3 opened new positions, 23 added to existing stakes, 2 trimmed, 3 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
SLS is classified in the Health Care sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| BlackRock Inc history | Q2 2026 | 15.07M | $222.44M | 0.00% | Add |
| Citadel Advisors history | Q2 2026 | 6.61M | $97.49M | 0.01% | Add |
| Geode Capital Management history | Q2 2026 | 4.88M | $72.11M | 0.00% | Add |
| Vanguard Group history | Q4 2025 | 8.47M | $31.92M | 0.00% | Add |
| Northern Trust Corp history | Q2 2026 | 1.62M | $23.91M | 0.00% | Add |
| UBS Group AG history | Q2 2026 | 1.25M | $18.49M | 0.00% | Add |
| Morgan Stanley history | Q2 2026 | 1.24M | $18.25M | 0.00% | Reduce |
| Millennium Management history | Q2 2026 | 1.10M | $16.27M | 0.01% | Add |
| Bank of America Corp history | Q2 2026 | 787.95K | $11.63M | 0.00% | Add |
| Wellington Management Group history | Q2 2026 | 597.31K | $8.82M | 0.00% | Add |
| Goldman Sachs Group history | Q2 2026 | 585.03K | $8.64M | 0.00% | Add |
| Marshall Wace history | Q1 2026 | 2.04M | $8.62M | 0.01% | Add |
| Charles Schwab Investment Management history | Q2 2026 | 565.01K | $8.34M | 0.00% | Add |
| BNY Mellon history | Q2 2026 | 530.02K | $7.82M | 0.00% | Add |
| Balyasny Asset Management history | Q2 2026 | 500.00K | $7.38M | 0.01% | Add |
| Invesco Ltd history | Q2 2026 | 375.34K | $5.54M | 0.00% | Reduce |
| Wells Fargo & Co history | Q2 2026 | 328.82K | $4.85M | 0.00% | Add |
| Citigroup Inc history | Q2 2026 | 326.59K | $4.82M | 0.00% | Add |
| Renaissance Technologies history | Q2 2026 | 310.36K | $4.58M | 0.01% | New |
| Deutsche Bank AG history | Q2 2026 | 190.13K | $2.81M | 0.00% | Add |
New Positions (Q2 2026)
- Renaissance Technologies 310.36K sh · $4.58M
- Franklin Resources 119.16K sh · $1.76M
- JPMorgan Chase & Co 100.14K sh · $1.55M
Fully Exited (vs previous quarter)
- Marshall Wace sold 2.04M sh · $8.62M
- Two Sigma Investments sold 403.17K sh · $1.71M
- Farallon Capital Management sold 40.00K sh · $169.20K
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | 431.62K | 444.21K | 538.46K | 4.59M | 5.69M | 7.54M | 12.20M | 15.07M |
| Citadel Advisors | 106.69K | 308.14K | 193.37K | 452.34K | 496.26K | 347.48K | 310.50K | 302.86K | 272.00K | 281.30K | 168.72K | 159.90K | 284.82K | 740.42K | 640.40K | 577.89K | 792.86K | 1.99M | 4.88M | 6.61M |
| Geode Capital Management | 133.80K | 133.80K | 136.90K | 144.72K | 144.72K | 188.07K | 188.07K | 188.07K | 235.60K | 245.60K | 273.06K | 517.01K | 605.19K | 733.55K | 820.44K | 2.20M | 2.26M | 3.08M | 3.91M | 4.88M |
| Northern Trust Corp | 24.61K | 24.61K | 24.82K | 24.61K | 37.67K | 37.67K | 30.02K | 39.36K | 39.36K | 62.44K | 88.73K | 100.84K | 100.84K | 134.72K | 164.39K | 698.49K | 731.17K | 930.75K | 1.28M | 1.62M |
| UBS Group AG | — | — | — | — | 1.36K | — | — | — | 26 | — | — | — | — | 127.82K | 62.23K | 309.69K | 84.99K | 48.73K | 745.42K | 1.25M |
| Morgan Stanley | 184.87K | 124.13K | 91.30K | 91.47K | 53.42K | 55.56K | 5.40K | 8.42K | 2.42K | 1.42K | 1.42K | 3.30K | 17.43K | 15.78K | 66.45K | 1.08M | 1.05M | 890.93K | 1.34M | 1.24M |
| Millennium Management | 12.16K | — | — | — | 24.78K | 61.18K | — | — | — | 11.24K | — | 150.45K | 46.34K | — | — | 1.13M | 314.70K | 1.39M | 1.00M | 1.10M |
| Bank of America Corp | 43.89K | 31.80K | 21.66K | 24.27K | — | 48 | — | — | — | 42 | — | 577 | 526 | 572 | 622 | 34.58K | 42.15K | 100.94K | 641.68K | 787.95K |
| Wellington Management Group | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 344.78K | 597.31K |
| Goldman Sachs Group | — | — | — | — | — | — | — | — | — | — | — | — | — | 15.68K | — | 465.51K | 19.27K | 411.65K | 555.91K | 585.03K |
| Charles Schwab Investment Management | — | — | — | — | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 294.11K | 294.11K | 408.40K | 480.60K | 565.01K |
| BNY Mellon | 20.98K | 20.98K | 20.98K | 20.25K | 20.25K | 20.83K | 20.83K | 20.74K | 20.41K | 84.67K | — | — | — | — | — | 201.46K | 205.68K | 256.41K | 478.37K | 530.02K |
| Balyasny Asset Management | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 81.69K | 500.00K |
| Invesco Ltd | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 50.17K | 50.18K | 53.29K | 698.08K | 375.34K |
| Wells Fargo & Co | 4.11K | 6.61K | 6.10K | 11.14K | 11.14K | 16.14K | 16.14K | 16.31K | 16.32K | 16.36K | 301 | — | — | — | 3.00K | 53.81K | 75.87K | 299.31K | 225.71K | 328.82K |
| Citigroup Inc | — | — | 1.92K | — | — | 100 | — | — | — | — | — | — | — | — | — | 42.41K | 4.27K | 55.48K | 25.65K | 326.59K |
| Renaissance Technologies | — | — | — | 33.84K | 22.40K | — | — | — | — | 50.40K | — | 32.45K | 92.94K | — | 34.89K | — | 291.82K | — | — | 310.36K |
| Deutsche Bank AG | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2.33K | 121.03K | 91.69K | 137.65K | 190.13K |
| Legal & General Investment Management America | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 10.63K | 10.63K | 13.03K | 15.14K | 167.80K |
| Franklin Resources | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 119.16K |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details