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 (+36.8%) vs. Q1 2026
- Total value
- $1.08B
- +$851.8M (+373.2%) 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 | $6.77M |
| Q2 2024 | 30 | $4.86M |
| Q1 2024 | 30 | $7.82M |
| Q4 2023 | 31 | $3.74M |
| 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 | $10.1M |
| 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 |
|---|---|---|---|---|---|
| FMR LLC | 25,533 | $376.9K | 0.00% | +9,972+64.1% | Added |
| ProShare Advisors LLC | 24,711 | $364.7K | 0.00% | −204−0.8% | Reduced |
| Pictet Asset Management Holding SA | 23,984 | $354.0K | 0.00% | +23,984 | New |
| Financial Designs Corp | 23,327 | $344.3K | 0.18% | 00.0% | Unchanged |
| Independent Financial Group, LLC | 23,250 | $343.2K | 0.01% | 00.0% | Unchanged |
| Martin Capital Advisors, LLP | 23,082 | $340.7K | 0.18% | +23,082 | New |
| Ridgewood Investments LLC | 22,500 | $332.1K | 0.12% | +22,500 | New |
| Millington Financial Advisors, LLC | 25,000 | $329.8K | 0.13% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 21,921 | $323.6K | 0.00% | +21,921 | New |
| Victory Capital Management Inc | 21,400 | $315.9K | 0.00% | +5,352+33.3% | Added |
| State of Wyoming | 21,179 | $312.6K | 0.03% | +21,179 | New |
| Teacher Retirement System of Texas | 20,993 | $309.9K | 0.00% | +20,993 | New |
| Simon Quick Advisors, LLC | 20,000 | $295.2K | 0.01% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 19,039 | $281.0K | 0.00% | +3,873+25.5% | Added |
| Capital Fund Management S.A. | 18,747 | $276.7K | 0.00% | +18,747 | New |
| Xponance, Inc. | 18,403 | $271.6K | 0.00% | +3,586+24.2% | Added |
| Prospera Financial Services Inc | 18,119 | $267.4K | 0.00% | +18,119 | New |
| Virginia Retirement Systems Et Al | 17,400 | $256.8K | 0.00% | +17,400 | New |
| Ameritas Investment Partners, Inc. | 17,129 | $252.8K | 0.01% | +3,064+21.8% | Added |
| Blair William & Co | 17,106 | $252.5K | 0.00% | +3,101+22.1% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 16,212 | $239.3K | 0.00% | +16,212 | New |
| Private Advisor Group, LLC | 15,650 | $231.0K | 0.00% | −3,890−19.9% | Reduced |
| Engineers Gate Manager LP | 14,995 | $221.3K | 0.00% | −67,785−81.9% | Reduced |
| Royal Bank of Canada | 14,828 | $218.0K | 0.00% | +10,657+255.5% | Added |
| Principal Financial Group Inc | 14,431 | $213.0K | 0.00% | +2,002+16.1% | Added |
| ELCO Management Co., LLC | 14,209 | $209.7K | 0.09% | −400−2.7% | Reduced |
| Integrity Alliance, LLC. | 14,011 | $206.8K | 0.01% | +14,011 | New |
| Neuberger Berman Group LLC | 13,171 | $194.4K | 0.00% | +13,171 | New |
| Ewa, LLC | 12,796 | $188.9K | 0.03% | 00.0% | Unchanged |
| Insigneo Advisory Services, LLC | 12,562 | $185.4K | 0.01% | +12,562 | New |
| Stifel Financial Corp | 12,419 | $183.3K | 0.00% | +883+7.7% | Added |
| Swiss Life Asset Management Ltd | 12,124 | $178.9K | 0.00% | +12,124 | New |
| Calton & Associates, Inc. | 11,000 | $162.4K | 0.02% | 00.0% | Unchanged |
| Wiley Bros.-Aintree Capital, LLC | 10,690 | $157.8K | 0.00% | −251−2.3% | Reduced |
| Squarepoint Ops LLC | 10,512 | $155.2K | 0.00% | −64,239−85.9% | Reduced |
| DnB Asset Management AS | 10,480 | $154.7K | 0.00% | +10,480 | New |
| CIBC Bancorp USA Inc. | 10,442 | $154.1K | 0.00% | +10,442 | New |
| EverSource Wealth Advisors, LLC | 10,039 | $148.2K | 0.00% | +10,017+45,531.8% | Added |
| Integrated Wealth Concepts LLC | 10,008 | $147.7K | 0.00% | −30.0% | 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 |
| Vision Financial Markets LLC | 9,800 | $144.6K | 0.13% | −294,600−96.8% | Reduced |
| Tower Research Capital LLC (TRC) | 9,260 | $136.7K | 0.00% | −11,850−56.1% | Reduced |
| Clearstead Advisors, LLC | 9,198 | $135.8K | 0.00% | +2,650+40.5% | Added |
| SRS Capital Advisors, Inc. | 9,173 | $135.4K | 0.00% | +9,173 | New |
| Quantbot Technologies LP | 9,118 | $134.6K | 0.01% | +7,069+345.0% | Added |
| Wealth Enhancement Advisory Services, LLC | 10,203 | $130.2K | 0.00% | +10,203 | New |
| Pensionmark Financial Group, LLC | 24,616 | $104.1K | 0.00% | 00.0% | Unchanged |
| Quent Capital, LLC | 7,022 | $103.6K | 0.01% | +1,934+38.0% | Added |
| Larson Financial Group LLC | 7,010 | $103.5K | 0.00% | −30.0% | Reduced |
| SBI Securities Co., Ltd. | 6,384 | $94.2K | 0.00% | +4,198+192.0% | Added |
| KBC Group NV | 5,854 | $86.0K | 0.00% | +5,854 | New |
| Nisa Investment Advisors, LLC | 5,374 | $79.3K | 0.00% | +2,774+106.7% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 5,200 | $76.8K | 0.00% | +5,200 | New |
| Rockefeller Capital Management L.P. | 5,000 | $73.8K | 0.00% | 00.0% | Unchanged |
| Pacer Advisors, Inc. | 4,006 | $59.0K | 0.00% | +4,006 | New |
| The PNC Financial Services Group, Inc. | 2,634 | $38.9K | 0.00% | +2,345+811.4% | Added |
| Colonial Trust Advisors | 2,516 | $37.1K | 0.00% | 00.0% | Unchanged |
| Bellevue Asset Management, LLC | 2,512 | $37.1K | 0.02% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 2,360 | $34.8K | 0.00% | 00.0% | Unchanged |
| Glen Eagle Advisors, LLC | 2,176 | $32.1K | 0.00% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 2,015 | $29.7K | 0.00% | +2,015 | New |
| Atlantic Private Wealth, LLC | 2,000 | $29.5K | 0.02% | 00.0% | Unchanged |
| Nykredit A/S | 1,839 | $27.1K | 0.00% | +1,839 | New |
| Kemnay Advisory Services Inc. | 1,657 | $24.5K | 0.00% | +1,657 | New |
| 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 |
| IFP Advisors, Inc | 925 | $13.7K | 0.00% | 00.0% | Unchanged |
| Aster Capital Management (DIFC) Ltd | 750 | $11.1K | 0.00% | +750 | New |
| CoreCap Advisors, LLC | 690 | $10.2K | 0.00% | +690 | New |
| Sterling Capital Management LLC | 663 | $9.79K | 0.00% | −453−40.6% | Reduced |
| Caitong International Asset Management Co., Ltd | 634 | $9.36K | 0.00% | −60,078−99.0% | Reduced |
| Financial Consulate, Inc | 600 | $8.86K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 556 | $8.21K | 0.00% | −259−31.8% | Reduced |
| GWM Advisors LLC | 500 | $7.38K | 0.00% | +200+66.7% | Added |
| Allworth Financial LP | 472 | $6.97K | 0.00% | +446+1,715.4% | Added |
| Evelyn Partners Group Ltd | 450 | $6.64K | 0.00% | +450 | New |
| Ronald Blue Trust, Inc. | 400 | $5.90K | 0.00% | +400 | New |
| Armstrong Advisory Group, Inc | 380 | $5.61K | 0.00% | +380 | New |
| Pin Oak Investment Advisors Inc | 280 | $4.00K | 0.00% | +280 | New |
| Fortitude Family Office, LLC | 259 | $3.82K | 0.00% | 00.0% | Unchanged |
| Strategic Wealth Partners, Ltd. | 150 | $2.21K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 146 | $2.15K | 0.00% | +19+15.0% | Added |
| Avion Wealth | 166 | $2.00K | 0.00% | −407−71.0% | Reduced |
| Caldwell Sutter Capital, Inc. | 100 | $1.48K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 55 | $812 | 0.00% | −117−68.0% | Reduced |
| Geneos Wealth Management Inc. | 39 | $576 | 0.00% | +39 | New |
| Massmutual Trust Co FSB | 24 | $354 | 0.00% | +24 | New |
| Hughes Financial Services, LLC | 19 | $280 | 0.00% | +18+1,800.0% | Added |
| Keating Financial Advisory Services, Inc. | 12 | $177 | 0.00% | +5+71.4% | Added |
| Parkside Financial Bank & Trust | 2 | $30 | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 2 | $30 | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −2,037,162−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −403,165−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −221,829−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −159,524−100.0% | Sold out |
| Tema ETFs LLC | 0 | $0 | 0.00% | −90,007−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −81,695−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −64,641−100.0% | Sold out |