SLS — SELLAS LIFE SCIENCES GROUP I
Reported value held$595.19M
Funds holding (latest)33
SectorHealth Care
Funds holding (Q2 2026)28
Institutional value$552.63M · 37.59M sh
New / Add / Cut / Exit3 / 23 / 2 / 3
Top-5 / Top-10 concentration78.6% / 90.1%
Institutional holdings change
Accumulating +18.2%
(+5.79M sh)
Institutional value change
Up +312.4%
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.
Q2 2026 — 28 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 15.07M | $222.44M | 0.00% | Add |
| Citadel Advisors history | 6.61M | $97.49M | 0.01% | Add |
| Geode Capital Management history | 4.88M | $72.11M | 0.00% | Add |
| Northern Trust Corp history | 1.62M | $23.91M | 0.00% | Add |
| UBS Group AG history | 1.25M | $18.49M | 0.00% | Add |
| Morgan Stanley history | 1.24M | $18.25M | 0.00% | Reduce |
| Millennium Management history | 1.10M | $16.27M | 0.01% | Add |
| Bank of America Corp history | 787.95K | $11.63M | 0.00% | Add |
| Wellington Management Group history | 597.31K | $8.82M | 0.00% | Add |
| Goldman Sachs Group history | 585.03K | $8.64M | 0.00% | Add |
| Charles Schwab Investment Management history | 565.01K | $8.34M | 0.00% | Add |
| BNY Mellon history | 530.02K | $7.82M | 0.00% | Add |
| Balyasny Asset Management history | 500.00K | $7.38M | 0.01% | Add |
| Invesco Ltd history | 375.34K | $5.54M | 0.00% | Reduce |
| Wells Fargo & Co history | 328.82K | $4.85M | 0.00% | Add |
| Citigroup Inc history | 326.59K | $4.82M | 0.00% | Add |
| Renaissance Technologies history | 310.36K | $4.58M | 0.01% | New |
| Deutsche Bank AG history | 190.13K | $2.81M | 0.00% | Add |
| Legal & General Investment Management America history | 167.80K | $2.48M | 0.00% | Add |
| Franklin Resources history | 119.16K | $1.76M | 0.00% | New |
| JPMorgan Chase & Co history | 100.14K | $1.55M | 0.00% | New |
| AQR Capital Management history | 58.12K | $857.85K | 0.00% | Add |
| Manulife Financial history | 48.94K | $722.31K | 0.00% | Add |
| Prudential Financial history | 31.11K | $459.18K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 25.53K | $376.87K | 0.00% | Add |
| Principal Global Investors history | 14.43K | $213.00K | 0.00% | Add |
| PNC Financial Services history | 2.63K | $38.88K | 0.00% | Add |
| T. Rowe Price Associates history | 155.07K | $2.29K | 0.00% | Add |
Q1 2026 — 28 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 12.20M | $51.60M | 0.00% | Add |
| Citadel Advisors history | 4.88M | $20.65M | 0.00% | Add |
| Geode Capital Management history | 3.91M | $16.55M | 0.00% | Add |
| Marshall Wace history | 2.04M | $8.62M | 0.01% | Add |
| Morgan Stanley history | 1.34M | $5.65M | 0.00% | Add |
| Northern Trust Corp history | 1.28M | $5.40M | 0.00% | Add |
| Millennium Management history | 1.00M | $4.24M | 0.00% | Reduce |
| UBS Group AG history | 745.42K | $3.15M | 0.00% | Add |
| Invesco Ltd history | 698.08K | $2.95M | 0.00% | Add |
| Bank of America Corp history | 641.68K | $2.71M | 0.00% | Add |
| Goldman Sachs Group history | 555.91K | $2.35M | 0.00% | Add |
| Charles Schwab Investment Management history | 480.60K | $2.03M | 0.00% | Add |
| BNY Mellon history | 478.37K | $2.02M | 0.00% | Add |
| Two Sigma Investments history | 403.17K | $1.71M | 0.00% | Reduce |
| Wellington Management Group history | 344.78K | $1.46M | 0.00% | New |
| Wells Fargo & Co history | 225.71K | $954.74K | 0.00% | Reduce |
| Deutsche Bank AG history | 137.65K | $582.24K | 0.00% | Add |
| Balyasny Asset Management history | 81.69K | $345.57K | 0.00% | New |
| AQR Capital Management history | 53.99K | $228.38K | 0.00% | New |
| Manulife Financial history | 45.69K | $193.27K | 0.00% | Add |
| Farallon Capital Management history | 40.00K | $169.20K | 0.00% | New |
| Prudential Financial history | 28.69K | $121.36K | 0.00% | New |
| Citigroup Inc history | 25.65K | $108.48K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 15.56K | $65.83K | 0.00% | Add |
| Legal & General Investment Management America history | 15.14K | $64.05K | 0.00% | Add |
| Principal Global Investors history | 12.43K | $52.58K | 0.00% | New |
| PNC Financial Services history | 289 | $1.22K | 0.00% | Add |
| T. Rowe Price Associates history | 122.12K | $517 | 0.00% | Add |
Q4 2025 — 24 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 8.47M | $31.92M | 0.00% | Add |
| BlackRock Inc history | 7.54M | $28.43M | 0.00% | Add |
| Geode Capital Management history | 3.08M | $11.60M | 0.00% | Add |
| Citadel Advisors history | 1.99M | $7.50M | 0.00% | Add |
| Millennium Management history | 1.39M | $5.23M | 0.00% | Add |
| Marshall Wace history | 1.34M | $5.05M | 0.01% | Reduce |
| Two Sigma Investments history | 1.08M | $4.08M | 0.01% | Add |
| Northern Trust Corp history | 930.75K | $3.51M | 0.00% | Add |
| Morgan Stanley history | 890.93K | $3.36M | 0.00% | Reduce |
| Goldman Sachs Group history | 411.65K | $1.55M | 0.00% | Add |
| Charles Schwab Investment Management history | 408.40K | $1.54M | 0.00% | Add |
| Wells Fargo & Co history | 299.31K | $1.13M | 0.00% | Add |
| BNY Mellon history | 256.41K | $966.66K | 0.00% | Add |
| Bank of America Corp history | 100.94K | $380.52K | 0.00% | Add |
| Deutsche Bank AG history | 91.69K | $345.66K | 0.00% | Reduce |
| Citigroup Inc history | 55.48K | $209.14K | 0.00% | Add |
| Invesco Ltd history | 53.29K | $200.91K | 0.00% | Add |
| JPMorgan Chase & Co history | 49.48K | $186.54K | 0.00% | Add |
| UBS Group AG history | 48.73K | $183.70K | 0.00% | Reduce |
| Manulife Financial history | 38.02K | $143.33K | 0.00% | Add |
| Legal & General Investment Management America history | 13.03K | $49.13K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 7.50K | $28.26K | 0.00% | Add |
| PNC Financial Services history | 283 | $1.07K | 0.00% | Reduce |
| T. Rowe Price Associates history | 63.03K | $238 | 0.00% | Add |
Q3 2025 — 25 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 6.84M | $11.01M | 0.00% | Add |
| BlackRock Inc history | 5.69M | $9.16M | 0.00% | Add |
| Marshall Wace history | 2.36M | $3.80M | 0.00% | Reduce |
| Geode Capital Management history | 2.26M | $3.65M | 0.00% | Add |
| Morgan Stanley history | 1.05M | $1.70M | 0.00% | Reduce |
| Citadel Advisors history | 792.86K | $1.28M | 0.00% | Add |
| Northern Trust Corp history | 731.17K | $1.18M | 0.00% | Add |
| Millennium Management history | 314.70K | $506.67K | 0.00% | Reduce |
| Charles Schwab Investment Management history | 294.11K | $473.51K | 0.00% | Hold |
| Renaissance Technologies history | 291.82K | $469.83K | 0.00% | New |
| BNY Mellon history | 205.68K | $331.15K | 0.00% | Add |
| Two Sigma Investments history | 145.86K | $234.83K | 0.00% | Reduce |
| Deutsche Bank AG history | 121.03K | $194.85K | 0.00% | Add |
| UBS Group AG history | 84.99K | $136.83K | 0.00% | Reduce |
| Wells Fargo & Co history | 75.87K | $122.15K | 0.00% | Add |
| Invesco Ltd history | 50.18K | $80.79K | 0.00% | Hold |
| Bank of America Corp history | 42.15K | $67.86K | 0.00% | Add |
| JPMorgan Chase & Co history | 40.72K | $65.56K | 0.00% | Reduce |
| Manulife Financial history | 33.45K | $53.86K | 0.00% | Reduce |
| Goldman Sachs Group history | 19.27K | $31.02K | 0.00% | Reduce |
| Legal & General Investment Management America history | 10.63K | $17.11K | 0.00% | Hold |
| Citigroup Inc history | 4.27K | $6.88K | 0.00% | Reduce |
| PNC Financial Services history | 1.15K | $1.85K | 0.00% | New |
| Fidelity Management & Research (FMR) history | 1.03K | $1.66K | 0.00% | New |
| T. Rowe Price Associates history | 47.96K | $78 | 0.00% | Hold |
Q2 2025 — 22 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 6.65M | $14.57M | 0.00% | Add |
| BlackRock Inc history | 4.59M | $10.05M | 0.00% | Add |
| Marshall Wace history | 2.72M | $5.95M | 0.01% | Add |
| Geode Capital Management history | 2.20M | $4.82M | 0.00% | Add |
| Millennium Management history | 1.13M | $2.47M | 0.00% | New |
| Morgan Stanley history | 1.08M | $2.38M | 0.00% | Add |
| Northern Trust Corp history | 698.49K | $1.53M | 0.00% | Add |
| Citadel Advisors history | 577.89K | $1.27M | 0.00% | Reduce |
| Goldman Sachs Group history | 465.51K | $1.02M | 0.00% | New |
| UBS Group AG history | 309.69K | $678.21K | 0.00% | Add |
| Charles Schwab Investment Management history | 294.11K | $644.09K | 0.00% | Add |
| BNY Mellon history | 201.46K | $441.20K | 0.00% | New |
| Two Sigma Investments history | 197.64K | $432.84K | 0.00% | Add |
| JPMorgan Chase & Co history | 61.89K | $135.54K | 0.00% | New |
| Wells Fargo & Co history | 53.81K | $117.86K | 0.00% | Add |
| Invesco Ltd history | 50.17K | $109.86K | 0.00% | New |
| Citigroup Inc history | 42.41K | $92.89K | 0.00% | New |
| Bank of America Corp history | 34.58K | $75.73K | 0.00% | Add |
| Manulife Financial history | 34.55K | $75.67K | 0.00% | New |
| Legal & General Investment Management America history | 10.63K | $23.27K | 0.00% | New |
| Deutsche Bank AG history | 2.33K | $5.11K | 0.00% | New |
| T. Rowe Price Associates history | 47.96K | $106 | 0.00% | New |
Q1 2025 — 13 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 2.84M | $3.07M | 0.00% | Add |
| Geode Capital Management history | 820.44K | $886.37K | 0.00% | Add |
| Citadel Advisors history | 640.40K | $691.64K | 0.00% | Reduce |
| BlackRock Inc history | 538.46K | $581.54K | 0.00% | Add |
| Northern Trust Corp history | 164.39K | $177.54K | 0.00% | Add |
| Morgan Stanley history | 66.45K | $71.77K | 0.00% | Add |
| UBS Group AG history | 62.23K | $67.21K | 0.00% | Reduce |
| Two Sigma Investments history | 48.29K | $52.15K | 0.00% | New |
| Renaissance Technologies history | 34.89K | $37.68K | 0.00% | New |
| Charles Schwab Investment Management history | 16.24K | $17.54K | 0.00% | Hold |
| Marshall Wace history | 11.48K | $12.40K | 0.00% | New |
| Wells Fargo & Co history | 3.00K | $3.24K | 0.00% | New |
| Bank of America Corp history | 622 | $672 | 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 | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 | Q2 2024 | Q1 2024 | Q4 2023 | Q3 2023 | Q2 2023 | Q1 2023 | Q4 2022 | Q3 2022 | Q2 2022 | Q1 2022 | Q4 2021 | Q3 2021 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock Inc | 15.07M | 12.20M | 7.54M | 5.69M | 4.59M | 538.46K | 444.21K | 431.62K | — | — | — | — | — | — | — | — | — | — | — | — |
| Citadel Advisors | 6.61M | 4.88M | 1.99M | 792.86K | 577.89K | 640.40K | 740.42K | 284.82K | 159.90K | 168.72K | 281.30K | 272.00K | 302.86K | 310.50K | 347.48K | 496.26K | 452.34K | 193.37K | 308.14K | 106.69K |
| Geode Capital Management | 4.88M | 3.91M | 3.08M | 2.26M | 2.20M | 820.44K | 733.55K | 605.19K | 517.01K | 273.06K | 245.60K | 235.60K | 188.07K | 188.07K | 188.07K | 144.72K | 144.72K | 136.90K | 133.80K | 133.80K |
| Northern Trust Corp | 1.62M | 1.28M | 930.75K | 731.17K | 698.49K | 164.39K | 134.72K | 100.84K | 100.84K | 88.73K | 62.44K | 39.36K | 39.36K | 30.02K | 37.67K | 37.67K | 24.61K | 24.82K | 24.61K | 24.61K |
| UBS Group AG | 1.25M | 745.42K | 48.73K | 84.99K | 309.69K | 62.23K | 127.82K | — | — | — | — | 26 | — | — | — | 1.36K | — | — | — | — |
| Morgan Stanley | 1.24M | 1.34M | 890.93K | 1.05M | 1.08M | 66.45K | 15.78K | 17.43K | 3.30K | 1.42K | 1.42K | 2.42K | 8.42K | 5.40K | 55.56K | 53.42K | 91.47K | 91.30K | 124.13K | 184.87K |
| Millennium Management | 1.10M | 1.00M | 1.39M | 314.70K | 1.13M | — | — | 46.34K | 150.45K | — | 11.24K | — | — | — | 61.18K | 24.78K | — | — | — | 12.16K |
| Bank of America Corp | 787.95K | 641.68K | 100.94K | 42.15K | 34.58K | 622 | 572 | 526 | 577 | — | 42 | — | — | — | 48 | — | 24.27K | 21.66K | 31.80K | 43.89K |
| Wellington Management Group | 597.31K | 344.78K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goldman Sachs Group | 585.03K | 555.91K | 411.65K | 19.27K | 465.51K | — | 15.68K | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Charles Schwab Investment Management | 565.01K | 480.60K | 408.40K | 294.11K | 294.11K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | 16.24K | — | — | — | — |
| BNY Mellon | 530.02K | 478.37K | 256.41K | 205.68K | 201.46K | — | — | — | — | — | 84.67K | 20.41K | 20.74K | 20.83K | 20.83K | 20.25K | 20.25K | 20.98K | 20.98K | 20.98K |
| Balyasny Asset Management | 500.00K | 81.69K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Invesco Ltd | 375.34K | 698.08K | 53.29K | 50.18K | 50.17K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Wells Fargo & Co | 328.82K | 225.71K | 299.31K | 75.87K | 53.81K | 3.00K | — | — | — | 301 | 16.36K | 16.32K | 16.31K | 16.14K | 16.14K | 11.14K | 11.14K | 6.10K | 6.61K | 4.11K |
| Citigroup Inc | 326.59K | 25.65K | 55.48K | 4.27K | 42.41K | — | — | — | — | — | — | — | — | — | 100 | — | — | 1.92K | — | — |
| Renaissance Technologies | 310.36K | — | — | 291.82K | — | 34.89K | — | 92.94K | 32.45K | — | 50.40K | — | — | — | — | 22.40K | 33.84K | — | — | — |
| Deutsche Bank AG | 190.13K | 137.65K | 91.69K | 121.03K | 2.33K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Legal & General Investment Management America | 167.80K | 15.14K | 13.03K | 10.63K | 10.63K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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