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SLS · SELLAS Life Sciences Group, Inc.

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$12.48 -0.71 (-5.38%) At close · Jul 20
Going-concern doubt — cleared May 12, 2026

The latest filing states the doubt was alleviated.

“In accordance with Accounting Standards Codification ("ASC") 205-40, Presentation of Financial Statements - Going Concern, the Company evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about its ability to continue as a going concern within one year after the consolidated financial statements are issued. The Company expects its cash and cash equivalents, together with the $7.5 million in proceeds from warrant exercises subsequent to March 31, 2026, will be sufficient to fund its current planned operations for at least the next twelve months from the date of issuance of these consolidated financial statements, although the Company may pursue additional capital resources through public or private equity or debt financings or by entering into additional license agreements or collaborations with other companies.”
View the 10-Q filed May 12, 2026
Market Cap
$2.32B
Shares
186.03M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 168
Total Value: $307,343,565
Total Shares: 68,297,373
Showing 1–100 of 179 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 164 13F filers
Top Holder
17.9%
Jun 2023 → Mar 2026 · range 17.4% – 53.2%
of institutional value
Top 5
61.5%
Jun 2023 → Mar 2026 · range 58.0% – 89.5%
of institutional value
Top 10
76.6%
Jun 2023 → Mar 2026 · range 73.0% – 97.1%
of institutional value
HHI
890
Jun 2023 → Mar 2026 · range 885 – 3,337
Broadly held
Showing 100 of 179
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $51,599,272 16.79% 12,198,410
Mega STATE STREET CORP $35,516,585 11.56% 8,396,356
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $32,249,943 10.49% 7,624,100
Mega VANGUARD CAPITAL MANAGEMENT LLC $31,834,679 10.36% 7,525,929
Mega CITADEL ADVISORS LLC $18,477,486 6.01% 4,368,200
Small DAGCO, INC. $18,190,711 5.92% 1,232,433
Mega GEODE CAPITAL MANAGEMENT, LLC $16,550,322 5.38% 3,912,606
Large MARSHALL WACE, LLP $8,617,194 2.80% 2,037,162
Large JONES FINANCIAL COMPANIES LLLP $7,085,575 2.31% 1,675,077
Mega MORGAN STANLEY $5,652,516 1.84% 1,336,293
Mega NORTHERN TRUST CORP Bank $5,397,411 1.76% 1,275,984
Mega VANGUARD FIDUCIARY TRUST CO Bank $5,088,008 1.66% 1,202,839
Small Everhart Financial Group, Inc. $4,251,145 1.38% 288,018
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $4,062,492 1.32% 960,400
Mega UBS Group AG $3,153,121 1.03% 745,419
Mega Invesco Ltd. $2,952,877 0.96% 698,080
Mega Nuveen, LLC $2,838,219 0.92% 670,974
Mega BANK OF AMERICA CORP /DE/ Bank $2,714,318 0.88% 641,683
Mega MILLENNIUM MANAGEMENT LLC $2,647,980 0.86% 626,000
Mega GOLDMAN SACHS GROUP INC $2,351,511 0.77% 555,913
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $2,032,954 0.66% 480,604
Mega Bank of New York Mellon Corp Bank $2,023,487 0.66% 478,366
Mega CITADEL ADVISORS LLC $1,902,654 0.62% 449,800
Large NOMURA HOLDINGS INC $1,847,241 0.60% 436,700
Mega TWO SIGMA INVESTMENTS, LP $1,705,387 0.55% 403,165
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,679,546 0.55% 397,056
Micro Opus Capital Group, LLC $1,465,491 0.48% 346,452
Mega WELLINGTON MANAGEMENT GROUP LLP $1,458,409 0.47% 344,778
Micro VISION FINANCIAL MARKETS LLC $1,287,612 0.42% 304,400
Small DIADEMA PARTNERS LP $1,269,000 0.41% 300,000
Mid SIMPLEX TRADING, LLC $1,248,535 0.41% 295,162
Large Rafferty Asset Management, LLC $1,055,080 0.34% 249,428
Mega JANE STREET GROUP, LLC $1,030,005 0.34% 243,500
Mega WELLS FARGO & COMPANY/MN $954,740 0.31% 225,707
Mid Virtu Financial LLC $938,336 0.31% 221,829
Mega MILLENNIUM MANAGEMENT LLC $914,526 0.30% 216,200
Mega RHUMBLINE ADVISERS $821,457 0.27% 194,198
Large Vontobel Holding Ltd. $736,667 0.24% 174,153
Large Mariner, LLC $734,201 0.24% 173,570
Small Accurate Wealth Management, LLC $700,539 0.23% 47,462
Mega ALLIANCEBERNSTEIN L.P. $693,466 0.23% 163,940
Mid GSA CAPITAL PARTNERS LLP $690,716 0.22% 163,290
Mega MILLENNIUM MANAGEMENT LLC $674,786 0.22% 159,524
Large TUDOR INVESTMENT CORP ET AL $671,724 0.22% 158,800
Micro INSTRUMENTAL WEALTH, LLC $662,930 0.22% 44,914
Large TUDOR INVESTMENT CORP ET AL $658,188 0.21% 155,600
Mega DEUTSCHE BANK AG\ Bank $582,241 0.19% 137,646
Mega LPL Financial LLC $580,389 0.19% 137,208
Mega Vanguard Global Advisers, LLC $541,905 0.18% 128,110
Micro Visionary Horizons, LLC $531,360 0.17% 36,000
Mega PRICE T ROWE ASSOCIATES INC /MD/ $516,567 0.17% 122,120
Mid PROFUND ADVISORS LLC $472,888 0.15% 111,794
Micro FULCRUM WEALTH ADVISORS, LLC $462,131 0.15% 109,251
Large Verition Fund Management LLC $421,731 0.14% 99,700
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $415,762 0.14% 98,289
Large MetLife Investment Management, LLC $398,698 0.13% 94,255
Large Tidal Investments LLC $380,729 0.12% 90,007
Mid Engineers Gate Manager LP $350,159 0.11% 82,780
Mega JPMORGAN CHASE & CO $346,115 0.11% 81,824
Large Balyasny Asset Management L.P. $345,569 0.11% 81,695
Micro Financial Designs Corp $344,306 0.11% 23,327
Mid INDEPENDENT FINANCIAL GROUP, LLC $343,170 0.11% 23,250
Large Squarepoint Ops LLC $316,196 0.10% 74,751
Large Quantinno Capital Management LP $314,618 0.10% 74,378
Mega CITADEL ADVISORS LLC $273,431 0.09% 64,641
Mid Prospera Financial Services Inc $267,436 0.09% 18,119
Small Caitong International Asset Management Co., Ltd $256,811 0.08% 60,712
Large Verition Fund Management LLC $255,069 0.08% 60,300
Large FIFTH THIRD BANCORP Bank $252,983 0.08% 59,807
Mega AQR CAPITAL MANAGEMENT LLC $228,376 0.07% 53,990
Mid INTECH INVESTMENT MANAGEMENT LLC $216,808 0.07% 51,255
Small NORTHSTAR ASSET MANAGEMENT Co $211,500 0.07% 50,000
Small EntryPoint Capital, LLC $203,987 0.07% 48,224
Large OSAIC HOLDINGS, INC. $199,960 0.07% 47,272
Large Police & Firemen's Retirement System of New Jersey Pension $199,186 0.06% 47,089
Mega BNP PARIBAS ARBITRAGE, SA $198,877 0.06% 47,016
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $193,272 0.06% 45,691
Small EWA, LLC $188,868 0.06% 12,796
Large Creative Planning $171,615 0.06% 40,571
Large FARALLON CAPITAL MANAGEMENT LLC $169,200 0.06% 40,000
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $164,970 0.05% 39,000
Large COMMONWEALTH EQUITY SERVICES, LLC $162,728 0.05% 38,470
Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $150,596 0.05% 10,203
Small OXFORD ASSET MANAGEMENT LLP $150,169 0.05% 35,501
Mid AXXCESS WEALTH MANAGEMENT, LLC $149,615 0.05% 35,370
Mid Magnetar Financial LLC $148,185 0.05% 35,032
Small FIRST FINANCIAL BANK - TRUST DIVISION Bank $147,600 0.05% 10,000
Small Scientech Research LLC $144,226 0.05% 34,096
Mega BARCLAYS PLC $137,102 0.04% 32,412
Mid E Fund Management Co., Ltd. $132,627 0.04% 31,354
Micro Genesee Capital Advisors, LLC $126,900 0.04% 30,000
Large VOYA INVESTMENT MANAGEMENT LLC $123,778 0.04% 29,262
Large Kestra Advisory Services, LLC $123,304 0.04% 29,150
Large PRUDENTIAL FINANCIAL INC $121,358 0.04% 28,690
Small Scissortail Wealth Management, LLC $115,572 0.04% 27,322
Large SEI INVESTMENTS CO $112,437 0.04% 26,581
Mega CITIGROUP INC $108,481 0.04% 25,646
Small SJS Investment Consulting Inc. $105,750 0.03% 25,000
Micro Millington Financial Advisors, LLC $105,750 0.03% 25,000
Large ProShare Advisors LLC $105,390 0.03% 24,915
Key facts CIK 1390478 CUSIP 81642T209 13F (30d) 19 filings 19 filers Visit website Investor relations

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