Sellas Life Sciences Group ISLS
13F holders, Q2 2026 (June 30)193holders +33
59new positions
27sold out
3famous investors
$14.65avg. 13F price*
At the end of Q2 2026, 193 institutions reported holding Sellas Life Sciences Group I (SLS) in their 13F filings, up 33 from Q1 2026. 59 opened new positions and 27 sold out. The largest holders were BlackRock, Inc. ($222.4M), State Street Corp. ($191.8M) and Vanguard Capital Management LLC ($121.4M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Joel Greenblatt (0.0% of Gotham Asset Management's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Sellas Life Sciences Group I
- CUSIP
- 81642T209
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 59 | $121.1M |
| Exits | 27 | $14.3M |
All 13F filers, Q1 2026 → Q2 2026: 24,705,024 shares bought and 4,983,679 shares sold, net +19,721,345 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 193 holders
| BlackRock, Inc. | 0.00% | Add +23.5% | 15,070,302 | $222.4M |
| State Street Corp. | 0.01% | Add +54.8% | 12,996,558 | $191.8M |
| Vanguard Capital Management LLC | 0.00% | Add +9.3% | 8,226,105 | $121.4M |
| Geode Capital Management, LLC | 0.00% | Add +24.8% | 4,884,175 | $72.1M |
| Anson Funds Management LP | 6.26% | New | 4,500,000 | $66.4M |
| Vanguard Portfolio Management LLC | 0.00% | Add +47.7% | 2,161,099 | $31.9M |
| Susquehanna International Group, LLP | 0.03% | Add +416.4% | 2,050,597 | $30.3M |
| Jones Financial Companies LLLP | 0.01% | Add +37.6% | 2,304,561 | $28.6M |
| Northern Trust Corp. | 0.00% | Add +27.0% | 1,619,928 | $23.9M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +11.0% | 1,335,166 | $19.7M |
| UBS Group AG | 0.00% | Add +68.1% | 1,252,757 | $18.5M |
| Morgan Stanley | 0.00% | Reduce -7.5% | 1,236,261 | $18.2M |
| Dagco, Inc. | 3.36% | Add +19.8% | 1,232,433 | $18.2M |
| BNP Paribas Financial Markets | 0.01% | Add +2180.1% | 1,072,022 | $15.8M |
| Bank of America Corp. | 0.00% | Add +22.8% | 787,949 | $11.6M |
| Wellington Management Group LLP | 0.00% | Add +73.2% | 597,309 | $8.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +5.2% | 585,035 | $8.6M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +17.6% | 565,008 | $8.3M |
| Bank of New York Mellon Corp | 0.00% | Add +10.8% | 530,025 | $7.8M |
| Jane Street Group, LLC | 0.00% | New | 508,429 | $7.5M |
| Nuveen, LLC | 0.00% | Reduce -37.6% | 418,729 | $6.2M |
| Opus Capital Group, LLC | 0.55% | Add +11.3% | 385,604 | $5.7M |
| Invesco Ltd. | 0.00% | Reduce -46.2% | 375,342 | $5.5M |
| Swiss National Bank | 0.00% | New | 360,400 | $5.3M |
| XTX Topco Ltd | 0.07% | New | 359,090 | $5.3M |
| Wells Fargo & Company | 0.00% | Add +45.7% | 328,819 | $4.9M |
| Citigroup Inc. | 0.00% | Add +1173.5% | 326,591 | $4.8M |
| Renaissance Technologies | 0.01% | New | 310,364 | $4.6M |
| Everhart Financial Group, Inc. | 0.27% | Reduce -21.0% | 288,018 | $4.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 273,403 | $4.0M |
| Rafferty Asset Management, LLC | 0.01% | Reduce -3.8% | 239,892 | $3.5M |
| Rhumbline Advisers | 0.00% | Add +18.6% | 230,402 | $3.4M |
| California State Teachers Retirement System | 0.00% | Add +2067.4% | 202,374 | $3.0M |
| Jefferies Financial Group Inc. | 0.03% | New | 200,459 | $3.0M |
| Mariner, LLC | 0.00% | Add +14.2% | 198,212 | $2.9M |
| Deutsche Bank AG | 0.00% | Add +38.1% | 190,128 | $2.8M |
| Alps Advisors Inc. | 0.01% | New | 188,107 | $2.8M |
| Legal & General Group Plc | 0.00% | Add +1008.2% | 167,800 | $2.5M |
| LPL Financial LLC | 0.00% | Add +13.4% | 155,663 | $2.3M |
| T. Rowe Price Associates Inc. | 0.00% | Add +27.0% | 155,066 | $2.3M |
| Simplex Trading, LLC | 0.06% | Reduce -47.8% | 154,099 | $2.3M |
| Vontobel Holding Ltd. | 0.01% | Reduce -15.7% | 146,762 | $2.2M |
| Vanguard Global Advisers, LLC | 0.00% | Add +1.5% | 130,005 | $1.9M |
| Tidal Investments LLC | 0.00% | Add +43.1% | 128,761 | $1.9M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | New | 125,989 | $1.9M |
| Profund Advisors LLC | 0.05% | Add +7.9% | 120,607 | $1.8M |
| Franklin Resources Inc. | 0.00% | New | 119,156 | $1.8M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +16.8% | 114,775 | $1.7M |
| MetLife Investment Management, LLC | 0.01% | Add +16.8% | 110,082 | $1.6M |
| JPMorgan Chase & Co. | 0.00% | Add +22.4% | 100,135 | $1.5M |
| Daiwa Securities Group Inc. | 0.00% | Add +4559.1% | 102,500 | $1.5M |
| Highbridge Capital Management LLC | 0.10% | New | 99,400 | $1.5M |
| Gsa Capital Partners LLP | 0.09% | Reduce -41.0% | 96,429 | $1.4M |
| State of Wisconsin Investment Board | 0.00% | New | 95,210 | $1.4M |
| Harvest Investment Services, LLC | 0.22% | New | 94,482 | $1.4M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | New | 83,305 | $1.2M |
| Jupiter Topco LLC | 0.00% | — | 79,600 | $1.2M |
| Gotham Asset Management | 0.00% | New | 74,344 | $1.1M |
| Fulcrum Wealth Advisors, LLC | 0.83% | Reduce -33.0% | 73,253 | $1.1M |
| Russell Investments Group, Ltd. | 0.00% | Add +295.6% | 71,225 | $1.1M |
| Creative Planning | 0.00% | Add +74.1% | 70,643 | $1.0M |
| Alliancebernstein L.P. | 0.00% | Add +44.0% | 236,060 | $999K |
| New York State Common Retirement Fund | 0.00% | Add +70.0% | 66,300 | $979K |
| National Bank of Canada | 0.00% | Add +2432.2% | 60,443 | $892K |
| Osaic Holdings, Inc. | 0.00% | Add +27.5% | 60,284 | $890K |
| Fifth Third Bancorp | 0.00% | Add +0.6% | 60,190 | $888K |
| AQR Capital Management | 0.00% | Add +7.7% | 58,120 | $858K |
| State of New Jersey Common Pension Fund D | 0.00% | New | 58,067 | $857K |
| Police & Firemen's Retirement System of New Jersey | 0.01% | Add +18.2% | 55,666 | $822K |
| Arizona State Retirement System | 0.00% | New | 49,552 | $731K |
| Caption Management, LLC | 0.03% | New | 49,373 | $729K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +7.1% | 48,937 | $722K |
| Mercer Global Advisors Inc. | 0.00% | New | 48,383 | $714K |
| Vanguard Investments Australia, Ltd. | 0.00% | New | 46,385 | $685K |
| Commonwealth Equity Services, LLC | 0.00% | Add +17.2% | 45,087 | $665K |
| Instrumental Wealth, LLC | 0.34% | No change | 44,914 | $663K |
| Virtus Investment Advisers, LLC | 0.14% | New | 41,788 | $617K |
| Accurate Wealth Management, LLC | 0.06% | Add +45.5% | 47,462 | $615K |
| Axxcess Wealth Management, LLC | 0.01% | Add +17.0% | 41,373 | $611K |
| KLP Kapitalforvaltning As | 0.00% | New | 40,700 | $601K |
| SJS Investment Consulting Inc. | 0.06% | Add +60.0% | 40,000 | $590K |
| Wealthfront Advisers LLC | 0.00% | Add +248.2% | 39,822 | $588K |
| Voya Investment Management LLC | 0.00% | Add +27.5% | 37,298 | $551K |
| Quantinno Capital Management LP | 0.00% | Reduce -50.2% | 37,036 | $547K |
| Visionary Horizons, LLC | 0.22% | No change | 36,000 | $531K |
| Barclays PLC | 0.00% | Add +10.4% | 35,783 | $528K |
| Kestra Advisory Services, LLC | 0.00% | Add +20.0% | 34,980 | $516K |
| NORTHSTAR ASSET MANAGEMENT Co | 0.10% | Reduce -10.0% | 45,000 | $509K |
| Mangrove Partners Im, LLC | 0.03% | New | 34,140 | $504K |
| E Fund Management Co., Ltd. | 0.01% | Add +7.9% | 33,825 | $499K |
| Intech Investment Management LLC | 0.00% | Reduce -37.2% | 32,182 | $475K |
| Scissortail Wealth Management, LLC | 0.09% | Add +14.6% | 31,322 | $462K |
| Prudential Financial Inc. | 0.00% | Add +8.4% | 31,110 | $459K |
| Sculptor Capital LP | 0.01% | New | 30,300 | $447K |
| Walleye Capital LLC | 0.00% | New | 30,116 | $445K |
| Genesee Capital Advisors, LLC | 0.14% | No change | 30,000 | $443K |
| Walleye Trading LLC | 0.01% | New | 28,965 | $428K |
| Sei Investments Co. | 0.00% | No change | 26,581 | $392K |
| STRS Ohio | 0.00% | New | 26,100 | $385K |
| FMR LLC | 0.00% | Add +64.1% | 25,533 | $377K |
| ProShare Advisors LLC | 0.00% | Reduce -0.8% | 24,711 | $365K |
| Pictet Asset Management Holding SA | 0.00% | New | 23,984 | $354K |
| Financial Designs Corp | 0.18% | No change | 23,327 | $344K |
| Independent Financial Group, LLC | 0.01% | No change | 23,250 | $343K |
| Martin Capital Advisors, LLP | 0.18% | New | 23,082 | $341K |
| Ridgewood Investments LLC | 0.12% | New | 22,500 | $332K |
| Millington Financial Advisors, LLC | 0.13% | No change | 25,000 | $330K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | New | 21,921 | $324K |
| Victory Capital Management Inc. | 0.00% | Add +33.4% | 21,400 | $316K |
| State of Wyoming | 0.03% | New | 21,179 | $313K |
| Teacher Retirement System of Texas | 0.00% | New | 20,993 | $310K |
| Simon Quick Advisors, LLC | 0.01% | No change | 20,000 | $295K |
| SG Americas Securities, LLC | 0.00% | Add +25.5% | 19,039 | $281K |
| Capital Fund Management S.A. | 0.00% | New | 18,747 | $277K |
| Xponance LLC | 0.00% | Add +24.2% | 18,403 | $272K |
| Prospera Financial Services Inc | 0.00% | New | 18,119 | $267K |
| VIRGINIA RETIREMENT SYSTEMS ET Al | 0.00% | New | 17,400 | $257K |
| Ameritas Investment Partners, Inc. | 0.01% | Add +21.8% | 17,129 | $253K |
| Blair William & Co. | 0.00% | Add +22.1% | 17,106 | $252K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | New | 16,212 | $239K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Add +30.0% | 16,163 | $239K |
| Private Advisor Group, LLC | 0.00% | Reduce -19.9% | 15,650 | $231K |
| Engineers Gate Manager LP | 0.00% | Reduce -81.9% | 14,995 | $221K |
| Royal Bank of Canada | 0.00% | Add +255.5% | 14,828 | $218K |
| Principal Financial Group Inc. | 0.00% | Add +16.1% | 14,431 | $213K |
| ELCO Management Co., LLC | 0.09% | Reduce -2.7% | 14,209 | $210K |
| Integrity Alliance, Llc. | 0.01% | New | 14,011 | $207K |
| Neuberger Berman Group LLC | 0.00% | New | 13,171 | $194K |
| Ewa, LLC | 0.03% | No change | 12,796 | $189K |
| Insigneo Advisory Services, LLC | 0.01% | New | 12,562 | $185K |
| Stifel Financial Corp. | 0.00% | Add +7.7% | 12,419 | $183K |
| Swiss Life Asset Management Ltd | 0.00% | New | 12,124 | $179K |
| Calton & Associates, Inc. | 0.02% | No change | 11,000 | $162K |
| &partners | 0.00% | Reduce -2.3% | 10,690 | $158K |
| Squarepoint Ops LLC | 0.00% | Reduce -85.9% | 10,512 | $155K |
| DNB Asset Management AS | 0.00% | New | 10,480 | $155K |
| CIBC Bancorp USA Inc. | 0.00% | New | 10,442 | $154K |
| EverSource Wealth Advisors, LLC | 0.01% | Add +45531.8% | 10,039 | $148K |
| Integrated Wealth Concepts LLC | 0.00% | Reduce -0.0% | 10,008 | $148K |
| Nemes Rush Group LLC | 0.01% | No change | 10,000 | $148K |
| First Financial Bank - Trust Division | 0.01% | No change | 10,000 | $148K |
| Ethos Financial Group, LLC | 0.01% | New | 10,000 | $148K |
| Vision Financial Markets LLC | 0.13% | Reduce -96.8% | 9,800 | $145K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -56.1% | 9,260 | $137K |
| Clearstead Advisors, LLC | 0.00% | Add +40.5% | 9,198 | $136K |
| Arax Advisory Partners | 0.00% | New | 9,173 | $135K |
| Quantbot Technologies LP | 0.01% | Add +345.0% | 9,118 | $135K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | New | 10,203 | $130K |
| World Investment Advisors | 0.00% | No change | 24,616 | $104K |
| Quent Capital, LLC | 0.01% | Add +38.0% | 7,022 | $104K |
| Larson Financial Group LLC | 0.00% | Reduce -0.0% | 7,010 | $103K |
| SBI Securities Co., Ltd. | 0.00% | Add +192.0% | 6,384 | $94K |
| KBC Group NV | 0.00% | New | 5,854 | $86K |
| Nisa Investment Advisors, LLC | 0.00% | Add +106.7% | 5,374 | $79K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | New | 5,200 | $77K |
| Rockefeller Capital Management L.P. | 0.00% | No change | 5,000 | $74K |
| Pacer Advisors, Inc. | 0.00% | New | 4,006 | $59K |
| PNC Financial Services Group, Inc. | 0.00% | Add +811.4% | 2,634 | $39K |
| Colonial Trust Advisors | 0.00% | No change | 2,516 | $37K |
| Bellevue Asset Management, LLC | 0.02% | No change | 2,512 | $37K |
| Farther Finance Advisors, LLC | 0.00% | No change | 2,360 | $35K |
| Glen Eagle Advisors, LLC | 0.00% | No change | 2,176 | $32K |
| Los Angeles Capital Management LLC | 0.00% | New | 2,015 | $30K |
| Atlantic Private Wealth, LLC | 0.02% | No change | 2,000 | $30K |
| Nykredit A/S | 0.00% | — | 1,839 | $27K |
| Kemnay Advisory Services Inc. | 0.00% | New | 1,657 | $24K |
| Tradewinds Capital Management, LLC | 0.00% | New | 1,000 | $15K |
| Global Retirement Partners, LLC | 0.00% | — | 1,000 | $15K |
| IFP Advisors, Inc | 0.00% | No change | 925 | $14K |
| Aster Capital Management (DIFC) Ltd | 0.00% | New | 750 | $11K |
| CoreCap Advisors, LLC | 0.00% | New | 690 | $10K |
| Sterling Capital Management LLC | 0.00% | Reduce -40.6% | 663 | $10K |
| Caitong International Asset Management Co., Ltd | 0.00% | Reduce -99.0% | 634 | $9K |
| Financial Consulate, Inc. | 0.00% | No change | 600 | $9K |
| GAMMA Investing LLC | 0.00% | Reduce -31.8% | 556 | $8K |
| NewEdge Advisors, LLC | 0.00% | Add +66.7% | 500 | $7K |
| Allworth Financial LP | 0.00% | Add +1715.4% | 472 | $7K |
| Evelyn Partners Group Ltd | 0.00% | — | 450 | $7K |
| Blue Trust, Inc. | 0.00% | New | 400 | $6K |
| Armstrong Advisory Group, Inc. | 0.00% | New | 380 | $6K |
| Pin Oak Investment Advisors Inc. | 0.00% | New | 280 | $4K |
| Fortitude Family Office, LLC | 0.00% | No change | 259 | $4K |
| Strategic Wealth Partners, Ltd. | 0.00% | No change | 150 | $2K |
| Rothschild Investment LLC | 0.00% | Add +15.0% | 146 | $2K |
| Avion Wealth | 0.00% | Reduce -71.0% | 166 | $2K |
| Caldwell Sutter Capital, Inc. | 0.00% | No change | 100 | $1K |
| Signaturefd, LLC | 0.00% | Reduce -68.0% | 55 | $812 |
| Geneos Wealth Management Inc. | 0.00% | New | 39 | $576 |
| MassMutual Private Wealth & Trust, FSB | 0.00% | New | 24 | $354 |
| Hughes Financial Services, LLC | 0.00% | Add +1800.0% | 19 | $280 |
| Keating Financial Advisory Services, Inc. | 0.00% | Add +71.4% | 12 | $177 |
| Parkside Financial Bank & Trust | 0.00% | No change | 2 | $30 |
| Bogart Wealth, LLC | 0.00% | No change | 2 | $30 |
"% 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.