SELLAS Life Sciences Group, Inc.
SLS- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001390478
No open-market purchases or sales by SELLAS Life Sciences Group, Inc. insiders were filed in the last 90 days; 193 institutions reported holding it in 13F filings for Q2 2026, worth $1.08B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in SELLAS Life Sciences Group, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 193
- +36 vs. Q1 2026
- Shares held
- 73.7M
- +19.8M (+36.7%) vs. Q1 2026
- Total value
- $1.08B
- +$851.5M (+373.1%) vs. Q1 2026
- New holders
- 63
- 77 more added
- Sold out
- 27
- 27 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SLS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 193 | $1.08B |
| Q1 2026 | 160 | $228.4M |
| Q4 2025 | 112 | $133.7M |
| Q3 2025 | 94 | $53.1M |
| Q2 2025 | 79 | $58.7M |
| Q1 2025 | 45 | $15.5M |
| Q4 2024 | 31 | $6.47M |
| Q3 2024 | 33 | $6.76M |
| Q2 2024 | 30 | $4.86M |
| Q1 2024 | 30 | $7.82M |
| Q4 2023 | 31 | $3.72M |
| Q3 2023 | 28 | $4.54M |
| Q2 2023 | 25 | $4.91M |
| Q1 2023 | 22 | $4.28M |
| Q4 2022 | 29 | $4.46M |
| Q3 2022 | 28 | $4.42M |
| Q2 2022 | 26 | $6.64M |
| Q1 2022 | 26 | $11.3M |
| Q4 2021 | 27 | $9.59M |
| Q3 2021 | 30 | $17.1M |
| Q2 2021 | 29 | $21.3M |
| Q1 2021 | 31 | $13.3M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding SELLAS Life Sciences Group, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Parkside Financial Bank & Trust | 2 | $30 | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 2 | $30 | 0.00% | 00.0% | Unchanged |
| Keating Financial Advisory Services, Inc. | 12 | $177 | 0.00% | +5+71.4% | Added |
| Hughes Financial Services, LLC | 19 | $280 | 0.00% | +18+1,800.0% | Added |
| Massmutual Trust Co FSB | 24 | $354 | 0.00% | +24 | New |
| Geneos Wealth Management Inc. | 39 | $576 | 0.00% | +39 | New |
| Signaturefd, LLC | 55 | $812 | 0.00% | −117−68.0% | Reduced |
| Caldwell Sutter Capital, Inc. | 100 | $1.48K | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 166 | $2.00K | 0.00% | −407−71.0% | Reduced |
| Rothschild Investment LLC | 146 | $2.15K | 0.00% | +19+15.0% | Added |
| Strategic Wealth Partners, Ltd. | 150 | $2.21K | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 259 | $3.82K | 0.00% | 00.0% | Unchanged |
| Pin Oak Investment Advisors Inc | 280 | $4.00K | 0.00% | +280 | New |
| Armstrong Advisory Group, Inc | 380 | $5.61K | 0.00% | +380 | New |
| Ronald Blue Trust, Inc. | 400 | $5.90K | 0.00% | +400 | New |
| Evelyn Partners Group Ltd | 450 | $6.64K | 0.00% | +450 | New |
| Allworth Financial LP | 472 | $6.97K | 0.00% | +446+1,715.4% | Added |
| GWM Advisors LLC | 500 | $7.38K | 0.00% | +200+66.7% | Added |
| GAMMA Investing LLC | 556 | $8.21K | 0.00% | −259−31.8% | Reduced |
| Financial Consulate, Inc | 600 | $8.86K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 634 | $9.36K | 0.00% | −60,078−99.0% | Reduced |
| Sterling Capital Management LLC | 663 | $9.79K | 0.00% | −453−40.6% | Reduced |
| CoreCap Advisors, LLC | 690 | $10.2K | 0.00% | +690 | New |
| Aster Capital Management (DIFC) Ltd | 750 | $11.1K | 0.00% | +750 | New |
| IFP Advisors, Inc | 925 | $13.7K | 0.00% | 00.0% | Unchanged |
| Tradewinds Capital Management, LLC | 1,000 | $14.8K | 0.00% | +1,000 | New |
| Global Retirement Partners, LLC | 1,000 | $14.8K | 0.00% | +1,000 | New |
| Kemnay Advisory Services Inc. | 1,657 | $24.5K | 0.00% | +1,657 | New |
| Nykredit A/S | 1,839 | $27.1K | 0.00% | +1,839 | New |
| Atlantic Private Wealth, LLC | 2,000 | $29.5K | 0.02% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 2,015 | $29.7K | 0.00% | +2,015 | New |
| Glen Eagle Advisors, LLC | 2,176 | $32.1K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 2,360 | $34.8K | 0.00% | 00.0% | Unchanged |
| Bellevue Asset Management, LLC | 2,512 | $37.1K | 0.02% | 00.0% | Unchanged |
| Colonial Trust Advisors | 2,516 | $37.1K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 2,634 | $38.9K | 0.00% | +2,345+811.4% | Added |
| Pacer Advisors, Inc. | 4,006 | $59.0K | 0.00% | +4,006 | New |
| Rockefeller Capital Management L.P. | 5,000 | $73.8K | 0.00% | 00.0% | Unchanged |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 5,200 | $76.8K | 0.00% | +5,200 | New |
| Nisa Investment Advisors, LLC | 5,374 | $79.3K | 0.00% | +2,774+106.7% | Added |
| KBC Group NV | 5,854 | $86.0K | 0.00% | +5,854 | New |
| SBI Securities Co., Ltd. | 6,384 | $94.2K | 0.00% | +4,198+192.0% | Added |
| Larson Financial Group LLC | 7,010 | $103.5K | 0.00% | −30.0% | Reduced |
| Quent Capital, LLC | 7,022 | $103.6K | 0.01% | +1,934+38.0% | Added |
| Pensionmark Financial Group, LLC | 24,616 | $104.1K | 0.00% | 00.0% | Unchanged |
| Wealth Enhancement Advisory Services, LLC | 10,203 | $130.2K | 0.00% | +10,203 | New |
| Quantbot Technologies LP | 9,118 | $134.6K | 0.01% | +7,069+345.0% | Added |
| SRS Capital Advisors, Inc. | 9,173 | $135.4K | 0.00% | +9,173 | New |
| Clearstead Advisors, LLC | 9,198 | $135.8K | 0.00% | +2,650+40.5% | Added |
| Tower Research Capital LLC (TRC) | 9,260 | $136.7K | 0.00% | −11,850−56.1% | Reduced |
| Vision Financial Markets LLC | 9,800 | $144.6K | 0.13% | −294,600−96.8% | Reduced |
| First Financial Bank - Trust Division | 10,000 | $147.6K | 0.01% | 00.0% | Unchanged |
| Nemes Rush Group LLC | 10,000 | $147.6K | 0.01% | 00.0% | Unchanged |
| Ethos Financial Group, LLC | 10,000 | $147.6K | 0.01% | +10,000 | New |
| Integrated Wealth Concepts LLC | 10,008 | $147.7K | 0.00% | −30.0% | Reduced |
| EverSource Wealth Advisors, LLC | 10,039 | $148.2K | 0.00% | +10,017+45,531.8% | Added |
| CIBC Bancorp USA Inc. | 10,442 | $154.1K | 0.00% | +10,442 | New |
| DnB Asset Management AS | 10,480 | $154.7K | 0.00% | +10,480 | New |
| Squarepoint Ops LLC | 10,512 | $155.2K | 0.00% | −64,239−85.9% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 10,690 | $157.8K | 0.00% | −251−2.3% | Reduced |
| Calton & Associates, Inc. | 11,000 | $162.4K | 0.02% | 00.0% | Unchanged |
| Swiss Life Asset Management Ltd | 12,124 | $178.9K | 0.00% | +12,124 | New |
| Stifel Financial Corp | 12,419 | $183.3K | 0.00% | +883+7.7% | Added |
| Insigneo Advisory Services, LLC | 12,562 | $185.4K | 0.01% | +12,562 | New |
| Ewa, LLC | 12,796 | $188.9K | 0.03% | 00.0% | Unchanged |
| Neuberger Berman Group LLC | 13,171 | $194.4K | 0.00% | +13,171 | New |
| Integrity Alliance, LLC. | 14,011 | $206.8K | 0.01% | +14,011 | New |
| ELCO Management Co., LLC | 14,209 | $209.7K | 0.09% | −400−2.7% | Reduced |
| Principal Financial Group Inc | 14,431 | $213.0K | 0.00% | +2,002+16.1% | Added |
| Royal Bank of Canada | 14,828 | $218.0K | 0.00% | +10,657+255.5% | Added |
| Engineers Gate Manager LP | 14,995 | $221.3K | 0.00% | −67,785−81.9% | Reduced |
| Private Advisor Group, LLC | 15,650 | $231.0K | 0.00% | −3,890−19.9% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 16,163 | $239.0K | 0.00% | +3,728+30.0% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 16,212 | $239.3K | 0.00% | +16,212 | New |
| Blair William & Co | 17,106 | $252.5K | 0.00% | +3,101+22.1% | Added |
| Ameritas Investment Partners, Inc. | 17,129 | $252.8K | 0.01% | +3,064+21.8% | Added |
| Virginia Retirement Systems Et Al | 17,400 | $256.8K | 0.00% | +17,400 | New |
| Prospera Financial Services Inc | 18,119 | $267.4K | 0.00% | +18,119 | New |
| Xponance, Inc. | 18,403 | $271.6K | 0.00% | +3,586+24.2% | Added |
| Capital Fund Management S.A. | 18,747 | $276.7K | 0.00% | +18,747 | New |
| SG Americas Securities, LLC | 19,039 | $281.0K | 0.00% | +3,873+25.5% | Added |
| Simon Quick Advisors, LLC | 20,000 | $295.2K | 0.01% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 20,993 | $309.9K | 0.00% | +20,993 | New |
| State of Wyoming | 21,179 | $312.6K | 0.03% | +21,179 | New |
| Victory Capital Management Inc | 21,400 | $315.9K | 0.00% | +5,352+33.3% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 21,921 | $323.6K | 0.00% | +21,921 | New |
| Millington Financial Advisors, LLC | 25,000 | $329.8K | 0.13% | 00.0% | Unchanged |
| Ridgewood Investments LLC | 22,500 | $332.1K | 0.12% | +22,500 | New |
| Martin Capital Advisors, LLP | 23,082 | $340.7K | 0.18% | +23,082 | New |
| Independent Financial Group, LLC | 23,250 | $343.2K | 0.01% | 00.0% | Unchanged |
| Financial Designs Corp | 23,327 | $344.3K | 0.18% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 23,984 | $354.0K | 0.00% | +23,984 | New |
| ProShare Advisors LLC | 24,711 | $364.7K | 0.00% | −204−0.8% | Reduced |
| FMR LLC | 25,533 | $376.9K | 0.00% | +9,972+64.1% | Added |
| STRS Ohio | 26,100 | $385.2K | 0.00% | +26,100 | New |
| SEI Investments Co | 26,581 | $392.3K | 0.00% | 00.0% | Unchanged |
| Walleye Trading LLC | 28,965 | $427.5K | 0.01% | +28,965 | New |
| Genesee Capital Advisors, LLC | 30,000 | $442.8K | 0.14% | 00.0% | Unchanged |
| Walleye Capital LLC | 30,116 | $444.5K | 0.00% | +30,116 | New |
| Sculptor Capital LP | 30,300 | $447.2K | 0.00% | +30,300 | New |