SELLAS LIFE SCIENCES GROUP I (SLS)
Institutional ownership reported to the SEC as of Q2 2026, across 28 quarters.
201
Reporting holders
$1.7B
Reported value
36.5%
Of shares outstanding
36.0%
Held as options
+43
Holder change
Institutions report 73,790,124 shares against 201,945,709 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $222.4M | 15,070,302 | 0.00% | 8q | +23.5%+$42.4M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $197.7M | 2,050,597 | 0.02% | 23q | +416.5%+$159.5M |
| STATE STREET CORP | $191.8M | 12,996,558 | 0.01% | 21q | +54.8%+$67.9M |
| VANGUARD CAPITAL MANAGEMENT LLC | $121.4M | 8,226,105 | 0.00% | 2q | +9.3%+$10.3M |
| GROUP ONE TRADING LLC | $117.0M | options only | 0.16% | 23q | OPTIONS |
| Anson Funds Management LP | $105.5M | 4,500,000 | 6.26% | new | NEW |
| CITADEL ADVISORS LLC | $97.5M | options only | 0.01% | 23q | OPTIONS |
| GEODE CAPITAL MANAGEMENT, LLC | $72.1M | 4,884,175 | 0.00% | 27q | +24.8%+$14.3M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $31.9M | 2,161,099 | 0.00% | 2q | +47.7%+$10.3M |
| BNP PARIBAS FINANCIAL MARKETS | $31.2M | 1,072,022 | 0.01% | 5q | +2180.1%+$29.9M |
| JONES FINANCIAL COMPANIES LLLP | $28.6M | 2,304,561 | 0.01% | 9q | +37.6%+$7.8M |
| SIMPLEX TRADING, LLC | $26.6M | 154,099 | 0.02% | 2q | -47.8%-$24.4M |
| NORTHERN TRUST CORP | $23.9M | 1,619,928 | 0.00% | 23q | +27.0%+$5.1M |
| PERCEPTIVE ADVISORS LLC | $22.1M | options only | 0.33% | new | OPTIONS |
| JANE STREET GROUP, LLC | $21.0M | 508,429 | 0.00% | 9q | HELD |
| VANGUARD FIDUCIARY TRUST CO | $19.7M | 1,335,166 | 0.00% | 2q | +11.0%+$2.0M |
| UBS Group AG | $18.5M | 1,252,757 | 0.00% | 7q | +68.1%+$7.5M |
| MORGAN STANLEY | $18.2M | 1,236,261 | 0.00% | 27q | -7.5%-$1.5M |
| DAGCO, INC. | $18.2M | 1,232,433 | 3.36% | 3q | +19.8%+$3.0M |
| Sio Capital Management, LLC | $18.2M | options only | 3.01% | new | OPTIONS |
| MILLENNIUM MANAGEMENT LLC | $16.3M | options only | 0.01% | 5q | OPTIONS |
| BARCLAYS PLC | $12.4M | 35,783 | 0.00% | 5q | +10.4%+$1.2M |
| BANK OF AMERICA CORP /DE/ | $11.6M | 787,949 | 0.00% | 9q | +22.8%+$2.2M |
| WELLINGTON MANAGEMENT GROUP LLP | $8.8M | 597,309 | 0.00% | 2q | +73.2%+$3.7M |
| GOLDMAN SACHS GROUP INC | $8.6M | 585,035 | 0.00% | 5q | +5.2%+$429.8K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $8.3M | 565,008 | 0.00% | 16q | +17.6%+$1.2M |
| Sixth Street Partners Management Company, L.P. | $8.3M | 565,008 | 0.00% | new | NEW |
| Bank of New York Mellon Corp | $7.8M | 530,025 | 0.00% | 5q | +10.8%+$762.5K |
| Balyasny Asset Management L.P. | $7.4M | options only | 0.01% | 2q | OPTIONS |
| DIADEMA PARTNERS LP | $7.4M | options only | 0.93% | 5q | OPTIONS |
| NOMURA HOLDINGS INC | $6.6M | options only | 0.01% | 3q | OPTIONS |
| LMR Partners LLP | $6.6M | options only | 0.02% | new | OPTIONS |
| Nuveen, LLC | $6.2M | 418,729 | 0.00% | 5q | -37.6%-$3.7M |
| Jefferies Financial Group Inc. | $5.9M | 200,459 | 0.04% | new | NEW |
| Invesco Ltd. | $5.5M | 375,342 | 0.00% | 5q | -46.2%-$4.8M |
| Swiss National Bank | $5.3M | 360,400 | 0.00% | new | NEW |
| XTX Topco Ltd | $5.3M | 359,090 | 0.07% | new | NEW |
| Ikarian Capital, LLC | $5.2M | options only | 0.56% | new | OPTIONS |
| TUDOR INVESTMENT CORP ET AL | $5.2M | options only | 0.01% | 3q | OPTIONS |
| WELLS FARGO & COMPANY/MN | $4.9M | 328,819 | 0.00% | 6q | -27.2%-$1.8M |
| CITIGROUP INC | $4.8M | 326,591 | 0.00% | 5q | +1173.5%+$4.4M |
| RENAISSANCE TECHNOLOGIES LLC | $4.6M | 310,364 | 0.01% | new | NEW |
| Everhart Financial Group, Inc. | $4.3M | 288,018 | 0.27% | 4q | -21.0%-$1.1M |
| Walleye Capital LLC | $4.1M | 30,116 | 0.01% | new | NEW |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $4.0M | 273,403 | 0.00% | new | NEW |
| Rafferty Asset Management, LLC | $3.5M | 239,892 | 0.01% | 2q | -3.8%-$140.8K |
| Verition Fund Management LLC | $3.5M | options only | 0.01% | 3q | OPTIONS |
| RHUMBLINE ADVISERS | $3.4M | 230,402 | 0.00% | 5q | +18.6%+$534.4K |
| Daiwa Securities Group Inc. | $3.2M | 102,500 | 0.01% | 2q | +4559.1%+$3.1M |
| BOOTHBAY FUND MANAGEMENT, LLC | $3.0M | options only | 0.04% | new | OPTIONS |
| Mariner, LLC | $2.9M | 198,212 | 0.00% | 10q | +14.2%+$363.7K |
| Caption Management, LLC | $2.8M | 49,373 | 0.01% | new | NEW |
| DEUTSCHE BANK AG\ | $2.8M | 190,128 | 0.00% | 5q | +38.1%+$774.6K |
| ALPS ADVISORS INC | $2.8M | 188,107 | 0.01% | new | NEW |
| Legal & General Group Plc | $2.5M | 167,800 | 0.00% | 5q | +1008.2%+$2.3M |
| Rosalind Advisors, Inc. | $2.3M | options only | 0.86% | new | OPTIONS |
| LPL Financial LLC | $2.3M | 155,663 | 0.00% | 9q | +13.5%+$272.4K |
| Vontobel Holding Ltd. | $2.2M | 146,762 | 0.01% | 2q | -15.7%-$404.3K |
| Vanguard Global Advisers, LLC | $1.9M | 130,005 | 0.00% | 2q | +1.5%+$28.0K |
| Tidal Investments LLC | $1.9M | 128,761 | 0.00% | 2q | +43.1%+$572.0K |
| VANGUARD ASSET MANAGEMENT, Ltd | $1.9M | 125,989 | 0.00% | new | NEW |
| PROFUND ADVISORS LLC | $1.8M | 120,607 | 0.05% | 2q | +7.9%+$130.1K |
| FRANKLIN RESOURCES INC | $1.8M | 119,156 | 0.00% | new | NEW |
| NATIONAL BANK OF CANADA /FI/ | $1.7M | 60,443 | 0.00% | 2q | +2432.2%+$1.7M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $1.7M | 114,775 | 0.00% | 5q | +16.8%+$246.1K |
| MetLife Investment Management, LLC | $1.6M | 110,082 | 0.01% | 5q | +16.8%+$233.6K |
| Marathon Trading Investment Management LLC | $1.5M | options only | 0.05% | 3q | OPTIONS |
| JPMORGAN CHASE & CO | $1.5M | 100,135 | 0.00% | 5q | +22.4%+$282.9K |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | $1.5M | 99,400 | 0.04% | new | NEW |
| STATE OF WISCONSIN INVESTMENT BOARD | $1.4M | 95,210 | 0.00% | new | NEW |
| Harvest Investment Services, LLC | $1.4M | 94,482 | 0.22% | new | NEW |
| ORBIMED ADVISORS LLC | $1.4M | options only | 0.03% | new | OPTIONS |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $1.2M | 83,305 | 0.00% | new | NEW |
| MERCER GLOBAL ADVISORS INC /ADV | $1.2M | 80,928 | 0.00% | new | NEW |
| Jupiter Topco LLC | $1.2M | 79,600 | 0.00% | new | FIRST |
| Gotham Asset Management, LLC | $1.1M | 74,344 | 0.00% | new | NEW |
| FULCRUM WEALTH ADVISORS, LLC | $1.1M | 73,253 | 0.83% | 3q | -32.9%-$531.3K |
| Russell Investments Group, Ltd. | $1.1M | 71,225 | 0.00% | 4q | +295.6%+$785.5K |
| Creative Planning | $1.0M | 70,643 | 0.00% | 2q | +74.1%+$443.9K |
| ALLIANCEBERNSTEIN L.P. | $998.5K | 236,060 | 0.00% | 5q | +44.0%+$305.1K |
| NEW YORK STATE COMMON RETIREMENT FUND | $978.6K | 66,300 | 0.00% | 5q | +70.0%+$402.9K |
| Sculptor Capital LP | $894.5K | 30,300 | 0.01% | new | NEW |
| OSAIC HOLDINGS, INC. | $889.8K | 60,284 | 0.00% | 23q | +27.5%+$192.1K |
| FIFTH THIRD BANCORP | $888.4K | 60,190 | 0.00% | 2q | +0.6%+$5.7K |
| Persistent Asset Partners Ltd | $883.0K | options only | 0.26% | 2q | OPTIONS |
| AQR CAPITAL MANAGEMENT LLC | $857.9K | 58,120 | 0.00% | 2q | +7.6%+$61.0K |
| State of New Jersey Common Pension Fund D | $857.1K | 58,067 | 0.00% | new | NEW |
| Police & Firemen's Retirement System of New Jersey | $821.6K | 55,666 | 0.01% | 5q | +18.2%+$126.6K |
| ARIZONA STATE RETIREMENT SYSTEM | $731.4K | 49,552 | 0.00% | new | NEW |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $722.3K | 48,937 | 0.00% | 5q | +7.1%+$47.9K |
| SIG BROKERAGE, LP | $689.3K | options only | 0.01% | 3q | OPTIONS |
| Vanguard Investments Australia, Ltd. | $684.6K | 46,385 | 0.00% | new | NEW |
| COMMONWEALTH EQUITY SERVICES, LLC | $665.5K | 45,087 | 0.00% | 13q | +17.2%+$97.7K |
| INSTRUMENTAL WEALTH, LLC | $662.9K | 44,914 | 0.34% | 4q | HELD |
| Virtus Investment Advisers, LLC | $616.8K | 41,788 | 0.14% | new | NEW |
| Accurate Wealth Management, LLC | $614.7K | 47,462 | 0.06% | 2q | +45.5%+$192.3K |
| AXXCESS WEALTH MANAGEMENT, LLC | $610.7K | 41,373 | 0.01% | 4q | +17.0%+$88.6K |
| KLP KAPITALFORVALTNING AS | $600.7K | 40,700 | 0.00% | new | NEW |
| SJS Investment Consulting Inc. | $590.4K | 40,000 | 0.06% | 2q | +60.0%+$221.4K |
| Wealthfront Advisers LLC | $587.8K | 39,822 | 0.00% | 2q | +248.2%+$419.0K |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-07 | 13G | STATE STREET CORPORATION | 7.0% |
| 2026-07-31 | 13G | Vanguard Capital Management | 5.2% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 201 | $1.7B | 73,790,124 | 65 | 71 | 31 | 36.0% |
| Q1 2026 | 158 | $336.0M | 53,948,172 | 62 | 51 | 15 | 32.9% |
| Q4 2025 | 112 | $221.1M | 34,605,894 | 32 | 43 | 18 | 41.0% |
| Q3 2025 | 89 | $77.1M | 32,046,887 | 17 | 26 | 16 | 33.1% |
| Q2 2025 | 77 | $73.9M | 26,038,670 | 40 | 19 | 6 | 22.8% |
| Q1 2025 | 43 | $18.0M | 13,982,851 | 17 | 14 | 3 | 15.9% |
| Q4 2024 | 29 | $10.4M | 5,903,532 | 4 | 9 | 3 | 41.0% |
| Q3 2024 | 32 | $10.9M | 5,070,464 | 8 | 8 | 5 | 41.7% |
| Q2 2024 | 32 | $11.5M | 3,741,449 | 11 | 7 | 3 | 61.1% |
| Q1 2024 | 30 | $10.9M | 7,471,956 | 8 | 6 | 4 | 30.5% |
| Q4 2023 | 29 | $5.8M | 3,246,529 | 7 | 8 | 4 | 40.3% |
| Q3 2023 | 26 | $7.1M | 2,685,802 | 4 | 6 | 6 | 37.6% |
| Q2 2023 | 23 | $7.6M | 3,070,725 | 2 | 6 | 1 | 36.6% |
| Q1 2023 | 22 | $6.6M | 2,945,452 | 3 | 4 | 4 | 36.4% |
| Q4 2022 | 23 | $5.4M | 1,525,075 | 8 | 7 | 1 | 33.4% |
| Q3 2022 | 28 | $5.9M | 2,186,943 | 5 | 4 | 5 | 25.5% |
| Q2 2022 | 27 | $8.4M | 2,979,307 | 7 | 9 | 3 | 20.8% |
| Q1 2022 | 28 | $14.3M | 1,690,142 | 5 | 6 | 9 | 21.2% |
| Q4 2021 | 27 | $14.0M | 1,827,642 | 5 | 6 | 8 | 27.9% |
| Q3 2021 | 31 | $21.6M | 1,859,470 | 6 | 10 | 6 | 20.8% |
| Q2 2021 | 32 | $27.3M | 1,897,926 | 7 | 11 | 5 | 22.0% |
| Q1 2021 | 30 | $17.7M | 1,553,238 | 14 | 7 | 3 | 25.3% |
| Q4 2020 | 21 | $5.9M | 925,075 | 13 | 3 | 2 | 9.1% |
| Q3 2020 | 10 | $1.6M | 616,674 | 3 | 1 | 3 | 0.0% |
| Q2 2020 | 12 | $1.3M | 455,904 | 5 | 1 | 2 | 0.0% |
| Q1 2020 | 10 | $722.0K | 416,786 | 4 | 2 | 1 | 0.0% |
| Q4 2019 | 10 | $2.2M | 440,853 | 10 | 0 | 0 | 12.4% |
| Q4 2018 | 1 | $75.0K | 0 | 0 | 0 | 0 | 100.0% |