SELLAS Life Sciences Group, Inc.

SLS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001390478

13F holders, Q2 2026

Positions 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
+33 vs. Q1 2026
Shares held
73.74M
+19.78M (+36.7%) vs. Q1 2026
Total value
$1.08B
+$851.63M (+372.8%) vs. Q1 2026

Compare with Q1 2026: new holders and sold out

Holders over time

30 in Q3 2021 → 193 in Q2 2026

Show by quarter
Number of institutions holding SLS by quarter
QuarterHolders
Q2 2026193
Q1 2026160
Q4 2025112
Q3 202594
Q2 202579
Q1 202545
Q4 202431
Q3 202433
Q2 202430
Q1 202430
Q4 202331
Q3 202328
Q2 202325
Q1 202322
Q4 202229
Q3 202228
Q2 202226
Q1 202226
Q4 202127
Q3 202130

Institutions

Institutions holding SLS in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.15,070,302$222.44M0.00%+2,871,892+23.5%Added
STATE STREET CORP12,996,558$191.83M0.01%+4,600,202+54.8%Added
VANGUARD CAPITAL MANAGEMENT LLC8,226,105$121.42M0.00%+700,176+9.3%Added
GEODE CAPITAL MANAGEMENT, LLC4,884,175$72.11M0.00%+971,569+24.8%Added
Anson Funds Management LP4,500,000$66.42M6.05%+4,500,000New
VANGUARD PORTFOLIO MANAGEMENT LLC2,161,099$31.9M0.00%+698,293+47.7%Added
SUSQUEHANNA INTERNATIONAL GROUP, LLP2,050,597$30.27M0.03%+1,653,541+416.5%Added
JONES FINANCIAL COMPANIES LLLP2,304,561$28.55M0.01%+629,484+37.6%Added
NORTHERN TRUST CORP1,619,928$23.91M0.00%+343,944+27.0%Added
VANGUARD FIDUCIARY TRUST CO1,335,166$19.71M0.00%+132,327+11.0%Added
UBS Group AG1,252,757$18.49M0.00%+507,338+68.1%Added
MORGAN STANLEY1,236,261$18.25M0.00%−100,032−7.5%Reduced
DAGCO, Inc.1,232,433$18.19M3.36%+203,653+19.8%Added
BNP PARIBAS ARBITRAGE, SA1,072,022$15.82M0.01%+1,025,006+2,180.1%Added
BANK OF AMERICA CORP /DE/787,949$11.63M0.00%+146,266+22.8%Added
WELLINGTON MANAGEMENT GROUP LLP597,309$8.82M0.00%+252,531+73.2%Added
GOLDMAN SACHS GROUP INC585,035$8.64M0.00%+29,122+5.2%Added
CHARLES SCHWAB INVESTMENT MANAGEMENT INC565,008$8.34M0.00%+84,404+17.6%Added
Bank of New York Mellon Corp530,025$7.82M0.00%+51,659+10.8%Added
JANE STREET GROUP, LLC508,429$7.5M0.00%+508,429New
Nuveen, LLC418,729$6.18M0.00%−252,245−37.6%Reduced
Opus Capital Group, LLC385,604$5.69M0.55%+39,152+11.3%Added
Invesco Ltd.375,342$5.54M0.00%−322,738−46.2%Reduced
Swiss National Bank360,400$5.32M0.00%+360,400New
XTX Topco Ltd359,090$5.3M0.07%+359,090New
WELLS FARGO & COMPANY/MN328,819$4.85M0.00%+103,112+45.7%Added
CITIGROUP INC326,591$4.82M0.00%+300,945+1,173.5%Added
RENAISSANCE TECHNOLOGIES LLC310,364$4.58M0.01%+310,364New
Everhart Financial Group, Inc.288,018$4.25M0.27%−76,379−21.0%Reduced
UBS ASSET MANAGEMENT AMERICAS INC273,403$4.04M0.00%+273,403New
Rafferty Asset Management, LLC239,892$3.54M0.01%−9,536−3.8%Reduced
RHUMBLINE ADVISERS230,402$3.4M0.00%+36,204+18.6%Added
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM202,374$2.99M0.00%+193,037+2,067.4%Added
JEFFERIES FINANCIAL GROUP INC.200,459$2.96M0.03%+200,459New
Mariner, LLC198,212$2.93M0.00%+24,642+14.2%Added
DEUTSCHE BANK AG\190,128$2.81M0.00%+52,482+38.1%Added
ALPS ADVISORS INC188,107$2.78M0.01%+188,107New
Legal & General Group Plc167,800$2.48M0.00%+152,658+1,008.2%Added
LPL Financial LLC155,663$2.3M0.00%+18,455+13.5%Added
PRICE T ROWE ASSOCIATES INC /MD/155,066$2.29M0.00%+32,946+27.0%Added
SIMPLEX TRADING, LLC154,099$2.27M0.06%−141,063−47.8%Reduced
Vontobel Holding Ltd.146,762$2.17M0.01%−27,391−15.7%Reduced
Vanguard Global Advisers, LLC130,005$1.92M0.00%+1,895+1.5%Added
Toroso Investments, LLC128,761$1.9M0.00%+38,754+43.1%Added
VANGUARD ASSET MANAGEMENT, Ltd125,989$1.86M0.00%+125,989New
PROFUND ADVISORS LLC120,607$1.78M0.05%+8,813+7.9%Added
FRANKLIN RESOURCES INC119,156$1.76M0.00%+119,156New
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.114,775$1.71M0.00%+16,486+16.8%Added
MetLife Investment Management110,082$1.62M0.01%+15,827+16.8%Added
JPMORGAN CHASE & CO100,135$1.55M0.00%+18,311+22.4%Added
Daiwa Securities Group Inc.102,500$1.51M0.00%+100,300+4,559.1%Added
HIGHBRIDGE CAPITAL MANAGEMENT LLC99,400$1.47M0.05%+99,400New
GSA CAPITAL PARTNERS LLP96,429$1.42M0.09%−66,861−40.9%Reduced
STATE OF WISCONSIN INVESTMENT BOARD95,210$1.41M0.00%+95,210New
Harvest Investment Services, LLC94,482$1.39M0.22%+94,482New
Zurcher Kantonalbank (Zurich Cantonalbank)83,305$1.23M0.00%+83,305New
Jupiter Topco LLC79,600$1.18M0.00%+79,600New
Gotham Asset Management, LLC74,344$1.1M0.00%+74,344New
FULCRUM WEALTH ADVISORS, LLC73,253$1.08M0.83%−35,998−32.9%Reduced
Russell Investments Group, Ltd.71,225$1.05M0.00%+53,219+295.6%Added
Creative Planning70,643$1.04M0.00%+30,072+74.1%Added
ALLIANCEBERNSTEIN L.P.236,060$998.53K0.00%+72,120+44.0%Added
NEW YORK STATE COMMON RETIREMENT FUND66,300$978.59K0.00%+27,300+70.0%Added
NATIONAL BANK OF CANADA /FI/60,443$892.14K0.00%+58,056+2,432.2%Added
ADVISOR GROUP HOLDINGS, INC.60,284$889.78K0.00%+13,012+27.5%Added
FIFTH THIRD BANCORP60,190$888.4K0.00%+383+0.6%Added
AQR CAPITAL MANAGEMENT LLC58,120$857.85K0.00%+4,130+7.6%Added
State of New Jersey Common Pension Fund D58,067$857.07K0.00%+58,067New
Police & Firemen's Retirement System of New Jersey55,666$821.63K0.01%+8,577+18.2%Added
Arizona State Retirement System49,552$731.39K0.00%+49,552New
Caption Management, LLC49,373$728.75K0.03%+49,373New
MANUFACTURERS LIFE INSURANCE COMPANY, THE48,937$722.31K0.00%+3,246+7.1%Added
MERCER GLOBAL ADVISORS INC /ADV48,383$714.12K0.00%+48,383New
Vanguard Investments Australia, Ltd.46,385$684.64K0.00%+46,385New
COMMONWEALTH EQUITY SERVICES, LLC45,087$665.48K0.00%+6,617+17.2%Added
INSTRUMENTAL WEALTH, LLC44,914$662.93K0.34%00.0%Unchanged
Virtus Investment Advisers, Inc.41,788$616.79K0.14%+41,788New
Accurate Wealth Management, LLC47,462$614.71K0.06%+14,851+45.5%Added
AXXCESS WEALTH MANAGEMENT, LLC41,373$610.67K0.01%+6,003+17.0%Added
KLP KAPITALFORVALTNING AS40,700$600.73K0.00%+40,700New
SJS Investment Consulting Inc.40,000$590.4K0.06%+15,000+60.0%Added
Wealthfront Advisers LLC39,822$587.77K0.00%+28,386+248.2%Added
Voya Investment Management LLC37,298$550.52K0.00%+8,036+27.5%Added
Quantinno Capital Management LP37,036$546.65K0.00%−37,342−50.2%Reduced
Visionary Horizons, LLC36,000$531.36K0.22%00.0%Unchanged
BARCLAYS PLC35,783$528.16K0.00%+3,371+10.4%Added
Kestra Advisory Services, LLC34,980$516.31K0.00%+5,830+20.0%Added
NORTHSTAR ASSET MANAGEMENT LLC45,000$509.4K0.10%−5,000−10.0%Reduced
MANGROVE PARTNERS34,140$503.91K0.03%+34,140New
E Fund Management Co., Ltd.33,825$499.26K0.01%+2,471+7.9%Added
Cambridge Investment Research Advisors, Inc.32,326$478K0.00%+19,891+160.0%Added
INTECH INVESTMENT MANAGEMENT LLC32,182$475.01K0.00%−19,073−37.2%Reduced
Scissortail Wealth Management, LLC31,322$462.31K0.09%+4,000+14.6%Added
PRUDENTIAL FINANCIAL INC31,110$459.18K0.00%+2,420+8.4%Added
Sculptor Capital LP30,300$447.23K0.00%+30,300New
Walleye Capital LLC30,116$444.51K0.00%+30,116New
Genesee Capital Advisors, LLC30,000$442.8K0.14%00.0%Unchanged
Walleye Trading LLC28,965$427.52K0.01%+28,965New
SEI INVESTMENTS CO26,581$392.34K0.00%00.0%Unchanged
STRS OHIO26,100$385.24K0.00%+26,100New