SELLAS Life Sciences Group, Inc. - SLS

Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 30 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
VANGUARD GROUP INC History Added to 8,467,400 31,922 0.0% 0.0% 1 +1,627,495 23.79% Q4 2025 Jan 29, 2026
BlackRock, Inc. History Added to 7,541,054 28,429 0.0% 0.0% 2 +1,854,168 32.6% Q4 2025 Feb 12, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 6,321,955 23,833 0.0% 0.0% 3 +2,609,980 70.31% Q4 2025 Feb 17, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 3,077,337 11,604 0.0% 0.0% 4 +812,953 35.9% Q4 2025 Feb 09, 2026
STATE STREET CORP History Added to 2,188,171 8,249 0.0% 0.0% 5 +827,257 60.79% Q4 2025 Feb 13, 2026
CITADEL ADVISORS LLC History Added to 1,990,300 7,503 0.0% 0.0% 6 +1,197,443 151.03% Q4 2025 Feb 17, 2026
MILLENNIUM MANAGEMENT LLC History Added to 1,387,849 5,232 0.0% 0.0% 7 +1,073,147 341.0% Q4 2025 Feb 17, 2026
MARSHALL WACE, LLP History Reduced 1,340,668 5,054 0.0% 0.0% 8 -1,017,331 -43.14% Q4 2025 Feb 13, 2026
TUDOR INVESTMENT CORP ET AL History New 1,303,300 4,913 0.01% 9 +1,303,300 New Q4 2025 Feb 17, 2026
TWO SIGMA INVESTMENTS, LP History Added to 1,082,207 4,079 0.01% 0.0% 10 +936,351 641.97% Q4 2025 Feb 17, 2026
Nuveen, LLC History Added to 1,023,961 3,860 0.0% 0.0% 11 +26,051 2.61% Q4 2025 Feb 12, 2026
Clear Street Group Inc. History New 1,000,000 3,770 0.01% 12 +1,000,000 New Q4 2025 Feb 13, 2026
NORTHERN TRUST CORP History Added to 930,750 3,508 0.0% 0.0% 13 +199,575 27.3% Q4 2025 Feb 17, 2026
MORGAN STANLEY History Reduced 890,929 3,358 0.0% 0.0% 14 -163,862 -15.54% Q4 2025 Feb 13, 2026
SIG BROKERAGE, LP History New 743,000 2,801 0.09% 15 +743,000 New Q4 2025 Feb 17, 2026
BARCLAYS PLC History Added to 711,034 2,680 0.0% 0.0% 16 +528,354 289.22% Q4 2025 Feb 13, 2026
GROUP ONE TRADING LLC History Added to 676,500 2,550 0.0% 0.0% 17 +644,500 2014.06% Q4 2025 Feb 12, 2026
DAGCO, INC. History New 577,540 2,177 0.5% 18 +577,540 New Q4 2025 Jan 08, 2026
NOMURA HOLDINGS INC History New 523,700 1,974 0.0% 19 +523,700 New Q4 2025 Feb 17, 2026
Everhart Financial Group, Inc. History Added to 466,216 1,757 0.16% 0.05% 20 +135,066 40.79% Q4 2025 Jan 07, 2026
JONES FINANCIAL COMPANIES LLLP History Added to 429,243 1,618 0.0% 21 +428,869 114670.86% Q4 2025 Feb 17, 2026
DIADEMA PARTNERS LP History Added to 424,900 1,601 0.28% 0.16% 22 +24,900 6.23% Q4 2025 Feb 17, 2026
GOLDMAN SACHS GROUP INC History Added to 411,654 1,551 0.0% 0.0% 23 +392,389 2036.8% Q4 2025 Mar 25, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Added to 408,401 1,539 0.0% 0.0% 24 +114,295 38.86% Q4 2025 Feb 13, 2026
GSA CAPITAL PARTNERS LLP History Reduced 345,052 1,301 0.11% 0.07% 25 -173,943 -33.52% Q4 2025 Feb 06, 2026
JANE STREET GROUP, LLC History Added to 342,236 1,290 0.0% 0.0% 26 +113,077 49.34% Q4 2025 Feb 12, 2026
Opus Capital Group, LLC History Added to 317,100 1,195 0.13% 0.05% 27 +67,100 26.84% Q4 2025 Jan 30, 2026
WELLS FARGO & COMPANY/MN History Added to 299,305 1,128 0.0% 0.0% 28 +223,438 294.51% Q4 2025 Feb 13, 2026
Bank of New York Mellon Corp History Added to 256,409 966 0.0% 0.0% 29 +50,727 24.66% Q4 2025 Feb 10, 2026
Mariner, LLC History Added to 159,150 599 0.0% 0.0% 30 +50,344 46.27% Q4 2025 Feb 13, 2026
RHUMBLINE ADVISERS History Reduced 129,309 487 0.0% 0.0% 31 -7,330 -5.36% Q4 2025 Feb 13, 2026
XTX Topco Ltd History New 118,440 446 0.01% 32 +118,440 New Q4 2025 Feb 17, 2026
Caitong International Asset Management Co., Ltd History Added to 110,258 415 0.1% 0.01% 33 +99,425 917.8% Q4 2025 Mar 03, 2026
LPL Financial LLC History Added to 107,305 404 0.0% 0.0% 34 +36,266 51.05% Q4 2025 Feb 11, 2026
BANK OF AMERICA CORP /DE/ History Added to 100,935 380 0.0% 0.0% 35 +58,785 139.47% Q4 2025 Feb 17, 2026
DEUTSCHE BANK AG\ History Reduced 91,688 345 0.0% 0.0% 36 -29,337 -24.24% Q4 2025 Feb 11, 2026
TWO SIGMA ADVISERS, LP History New 76,554 288 0.0% 37 +76,554 New Q4 2025 Feb 17, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 63,026 238 0.0% 0.0% 38 +15,067 31.42% Q4 2025 Feb 17, 2026
STONERIDGE INVESTMENT PARTNERS LLC History Added to 61,327 231 0.16% 0.06% 39 +7,618 14.18% Q4 2025 Feb 05, 2026
FULCRUM WEALTH ADVISORS, LLC History New 61,164 230 0.19% 40 +61,164 New Q4 2025 Feb 02, 2026
INSTRUMENTAL WEALTH, LLC History No change 44,914 220 0.13% 0.06% 41 0 0.0% Q4 2025 Feb 27, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 57,547 216 0.0% 0.0% 42 +12,900 28.89% Q4 2025 Feb 17, 2026
TWO SIGMA SECURITIES, LLC History New 57,105 215 0.03% 43 +57,105 New Q4 2025 Feb 17, 2026
CITIGROUP INC History Added to 55,475 209 0.0% 0.0% 44 +51,201 1197.96% Q4 2025 Feb 13, 2026
Invesco Ltd. History Added to 53,293 200 0.0% 0.0% 45 +3,114 6.21% Q4 2025 Feb 19, 2026
NORTHSTAR ASSET MANAGEMENT Co History Added to 50,000 188 0.04% 0.01% 47 +9,680 24.01% Q4 2025 Jan 27, 2026
ALLIANCEBERNSTEIN L.P. History No change 49,960 188 0.0% 0.0% 46 0 0.0% Q4 2025 Feb 17, 2026
JPMORGAN CHASE & CO History Added to 49,479 186 0.0% 0.0% 48 +8,757 21.5% Q4 2025 Feb 11, 2026
UBS Group AG History Reduced 48,727 183 0.0% 0.0% 49 -36,262 -42.67% Q4 2025 Jan 29, 2026
World Investment Advisors History New 44,123 166 0.0% 50 +44,123 New Q4 2025 Mar 12, 2026
INTECH INVESTMENT MANAGEMENT LLC History Reduced 40,272 151 0.0% 0.0% 51 -6,081 -13.12% Q4 2025 Feb 10, 2026
Scientech Research LLC History New 38,743 146 0.09% 52 +38,743 New Q4 2025 Feb 17, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History New 38,018 143 0.0% 53 +38,018 New Q4 2025 Feb 13, 2026
Tyche Wealth Partners LLC History No change 37,500 141 0.02% 0.01% 54 0 0.0% Q4 2025 Jan 23, 2026
SG Americas Securities, LLC History Added to 36,450 137 0.0% 0.0% 55 +17,084 88.22% Q4 2025 Jan 09, 2026
VISIONARY HORIZONS, LLC History New 36,000 135 0.07% 57 +36,000 New Q4 2025 Jan 23, 2026
Regal Investment Advisors LLC History New 35,900 135 0.01% 56 +35,900 New Q4 2025 Feb 17, 2026
AXXCESS WEALTH MANAGEMENT, LLC History Added to 35,370 133 0.0% 0.0% 58 +19,370 121.06% Q4 2025 Feb 19, 2026
Police & Firemen's Retirement System of New Jersey History Added to 34,743 130 0.0% 0.0% 59 +11,392 48.79% Q4 2025 Feb 13, 2026
Verition Fund Management LLC History New 32,500 122 0.0% 60 +32,500 New Q4 2025 Feb 13, 2026
Equitable Holdings, Inc. History Added to 32,060 120 0.0% 0.0% 61 +5,000 18.48% Q4 2025 Feb 17, 2026
Genesee Capital Advisors, LLC History No change 30,000 113 0.05% 0.02% 62 0 0.0% Q4 2025 Jan 16, 2026
COMMONWEALTH EQUITY SERVICES, LLC History Added to 29,244 110 0.0% 0.0% 63 +13,390 84.46% Q4 2025 Feb 12, 2026
Kestra Advisory Services, LLC History Added to 27,400 103 0.0% 0.0% 64 +1,000 3.79% Q4 2025 Feb 13, 2026
Scissortail Wealth Management, LLC History No change 27,322 103 0.02% 0.01% 65 0 0.0% Q4 2025 Jan 29, 2026
MetLife Investment Management, LLC History Reduced 27,181 102 0.0% 0.0% 66 -12,792 -32.0% Q4 2025 Feb 12, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 26,838 101 0.0% 0.0% 67 +7,114 36.07% Q4 2025 Feb 10, 2026
SEI INVESTMENTS CO History No change 26,581 100 0.0% 0.0% 68 0 0.0% Q4 2025 Feb 13, 2026
BLAIR WILLIAM & CO/IL History Added to 26,002 98 0.0% 0.0% 69 +10,000 62.49% Q4 2025 Feb 17, 2026
Millington Financial Advisors, LLC History New 25,000 93 0.04% 70 +25,000 New Q4 2025 Feb 09, 2026
Jaffetilchin Investment Partners, LLC History New 24,338 91 0.01% 71 +24,338 New Q4 2025 Jan 15, 2026
TRUSTMARK BANK TRUST DEPARTMENT History Reduced 24,000 90 0.01% 0.0% 72 -12,511 -34.27% Q4 2025 Feb 17, 2026
OSAIC HOLDINGS, INC. History Added to 23,689 89 0.0% 0.0% 73 +16,029 209.26% Q4 2025 Feb 17, 2026
ProShare Advisors LLC History Added to 22,638 85 0.0% 0.0% 74 +5,417 31.46% Q4 2025 Feb 06, 2026
VOYA INVESTMENT MANAGEMENT LLC History Added to 21,034 79 0.0% 0.0% 75 +3,590 20.58% Q4 2025 Feb 12, 2026
Jefferies Financial Group Inc. History New 20,200 76 0.0% 76 +20,200 New Q4 2025 Feb 09, 2026
SIMON QUICK ADVISORS, LLC History No change 20,000 75 0.0% 0.0% 77 0 0.0% Q4 2025 Jan 29, 2026
Private Advisor Group, LLC History New 18,205 68 0.0% 78 +18,205 New Q4 2025 Feb 17, 2026
VICTORY CAPITAL MANAGEMENT INC History Added to 16,351 61 0.0% 0.0% 79 +4,481 37.75% Q4 2025 Feb 13, 2026
Grange Capital, LLC History Added to 16,001 60 0.06% 0.02% 80 +2,500 18.52% Q4 2025 Feb 03, 2026
ELCO Management Co., LLC History Added to 14,609 55 0.03% 0.01% 81 +600 4.28% Q4 2025 Feb 04, 2026
BOOTHBAY FUND MANAGEMENT, LLC History New 13,800 52 0.0% 82 +13,800 New Q4 2025 Feb 17, 2026
Squarepoint Ops LLC History Reduced 13,285 50 0.0% 0.0% 83 -32,895 -71.23% Q4 2025 Feb 13, 2026
STIFEL FINANCIAL CORP History New 13,036 49 0.0% 84 +13,036 New Q4 2025 Feb 13, 2026
Legal & General Group Plc History Added to 13,032 49 0.0% 0.0% 85 +2,406 22.64% Q4 2025 Feb 09, 2026
EWA, LLC History New 12,796 48 0.01% 86 +12,796 New Q4 2025 Feb 03, 2026
Cambridge Investment Research Advisors, Inc. History Reduced 12,435 47 0.0% 0.0% 87 -7,565 -37.82% Q4 2025 Feb 05, 2026
CWM, LLC History Added to 11,782 44 0.0% 0.0% 88 +6,538 124.68% Q4 2025 Jan 26, 2026
CALTON & ASSOCIATES, INC. History No change 11,000 41 0.01% 0.0% 89 0 0.0% Q4 2025 Feb 10, 2026
MONEY CONCEPTS CAPITAL CORP History New 10,600 39 0.0% 90 +10,600 New Q4 2025 Feb 04, 2026
Concurrent Investment Advisors, LLC History New 10,085 38 0.0% 91 +10,085 New Q4 2025 Jan 29, 2026
Beacon Pointe Advisors, LLC History New 10,000 37 0.0% 92 +10,000 New Q4 2025 Feb 18, 2026
Nemes Rush Group LLC History No change 10,000 37 0.0% 0.0% 93 0 0.0% Q4 2025 Feb 11, 2026
Private Wealth Management Group, LLC History No change 10,000 37 0.01% 0.0% 94 0 0.0% Q4 2025 Jan 23, 2026
Russell Investments Group, Ltd. History Added to 9,560 36 0.0% 0.0% 96 +371 4.04% Q4 2025 Feb 17, 2026
Ameritas Investment Partners, Inc. History No change 9,744 36 0.0% 0.0% 95 0 0.0% Q4 2025 Feb 11, 2026
DANSKE BANK A/S History New 100,000 35 0.0% 97 +100,000 New Q4 2025 Feb 02, 2026
ROYAL BANK OF CANADA History New 7,651 29 0.0% 98 +7,651 New Q4 2025 Feb 17, 2026
FMR LLC History Added to 7,495 28 0.0% 0.0% 99 +6,467 629.09% Q4 2025 Feb 17, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Added to 7,628 28 0.0% 0.0% 100 +1,669 28.01% Q4 2025 Feb 17, 2026
NEW YORK STATE COMMON RETIREMENT FUND History Reduced 6,900 26 0.0% 0.0% 101 -42,400 -86.0% Q4 2025 Feb 12, 2026
Larson Financial Group LLC History New 6,993 26 0.0% 102 +6,993 New Q4 2025 Feb 06, 2026
Tower Research Capital LLC (TRC) History Reduced 6,474 24 0.0% 0.0% 103 -6,315 -49.38% Q4 2025 Feb 17, 2026
SageView Advisory Group, LLC History New 5,000 18 0.0% 106 +5,000 New Q4 2025 Feb 17, 2026
Global Retirement Partners, LLC History Added to 5,000 18 0.0% 0.0% 105 +4,000 400.0% Q4 2025 Feb 06, 2026
Rockefeller Capital Management L.P. History No change 5,000 18 0.0% 0.0% 104 0 0.0% Q4 2025 Mar 16, 2026
AMALGAMATED BANK History Added to 3,892 15 0.0% 0.0% 107 +633 19.42% Q4 2025 Feb 05, 2026
SBI Securities Co., Ltd. History Reduced 3,591 13 0.0% 0.0% 108 -2,135 -37.29% Q4 2025 Feb 03, 2026
Sterling Capital Management LLC History Added to 790 2 0.0% 109 +546 223.77% Q4 2025 Feb 13, 2026
Avion Wealth History No change 573 2 0.0% 110 0 0.0% Q4 2025 Jan 23, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Reduced 283 1 0.0% 0.0% 111 -869 -75.43% Q4 2025 Feb 06, 2026
Strengthening Families & Communities, LLC History New 500 1 0.0% 112 +500 New Q4 2025 Feb 03, 2026
GAMMA Investing LLC History New 372 1 0.0% 114 +372 New Q4 2025 Jan 05, 2026
Farther Finance Advisors, LLC History New 350 1 0.0% 113 +350 New Q4 2025 Jan 23, 2026
Anson Funds Management LP History Closed out 0 0 0.88% -6,032,938 -100.0% Q3 2025 Nov 14, 2025
Caligan Partners LP History Closed out 0 0 0.48% -2,300,000 -100.0% Q3 2025 Nov 14, 2025
RENAISSANCE TECHNOLOGIES LLC History Closed out 0 0 0.0% -291,822 -100.0% Q3 2025 Nov 13, 2025
SIMPLEX TRADING, LLC History Closed out 0 0 0.0% -49,400 -100.0% Q3 2025 Nov 12, 2025
Prosperity Financial Group, Inc. History Closed out 0 0 0.01% -18,500 -100.0% Q3 2025 Nov 14, 2025
Quadrature Capital Ltd History Closed out 0 0 0.0% -16,579 -100.0% Q3 2025 Nov 13, 2025
Marshall Financial Group, LLC History Closed out 0 0 0.0% -10,309 -100.0% Q3 2025 Oct 08, 2025
Brooklyn FI, LLC History Closed out 0 0 0.0% -10,240 -100.0% Q3 2025 Nov 12, 2025
GREAT VALLEY ADVISOR GROUP, INC. History Closed out 0 0 0.0% -10,000 -100.0% Q3 2025 Nov 14, 2025
Arax Advisory Partners History Closed out 0 0 -540 -100.0% Q3 2025 Nov 14, 2025
NVWM, LLC History New 201 0 +201 New Q4 2025 Jan 20, 2026
Motiv8 Investments LLC History New 80 0 +80 New Q4 2025 Feb 13, 2026
ROTHSCHILD INVESTMENT LLC History New 21 0 +21 New Q4 2025 Feb 10, 2026
CALDWELL SUTTER CAPITAL, INC. History No change 100 0 0 0.0% Q4 2025 Jan 30, 2026
Parkside Financial Bank & Trust History No change 2 0 0 0.0% Q4 2025 Feb 13, 2026