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SELLAS Life Sciences Group, Inc.

SLS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001390478

No open-market purchases or sales by SELLAS Life Sciences Group, Inc. insiders were filed in the last 90 days; 193 institutions reported holding it in 13F filings for Q2 2026, worth $1.08B in total; no superinvestor holds it.

13F holders, Q4 2024

Institutional positions in SELLAS Life Sciences Group, Inc. as of Dec 31, 2024. 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
31
−2 vs. Q3 2024
Shares held
6.22M
+809.7K (+15.0%) vs. Q3 2024
Total value
$6.47M
−$290.5K (−4.3%) vs. Q3 2024
New holders
6
10 more added
Sold out
8
5 more reduced

Compare with Q3 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting SLS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2024: 31 institutions
Q1 2021: 31 institutionsQ2 2021: 29 institutionsQ3 2021: 30 institutionsQ4 2021: 27 institutionsQ1 2022: 26 institutionsQ2 2022: 26 institutionsQ3 2022: 28 institutionsQ4 2022: 29 institutionsQ1 2023: 22 institutionsQ2 2023: 25 institutionsQ3 2023: 28 institutionsQ4 2023: 31 institutionsQ1 2024: 30 institutionsQ2 2024: 30 institutionsQ3 2024: 33 institutionsQ4 2024: 31 institutionsQ1 2025: 45 institutionsQ2 2025: 79 institutionsQ3 2025: 94 institutionsQ4 2025: 112 institutionsQ1 2026: 160 institutionsQ2 2026: 193 institutions
Value heldQ4 2024: $6.47M
Q1 2021: $13.3MQ2 2021: $21.3MQ3 2021: $17.1MQ4 2021: $10.1MQ1 2022: $11.3MQ2 2022: $6.64MQ3 2022: $4.42MQ4 2022: $4.46MQ1 2023: $4.28MQ2 2023: $4.91MQ3 2023: $4.54MQ4 2023: $3.74MQ1 2024: $7.82MQ2 2024: $4.86MQ3 2024: $6.77MQ4 2024: $6.47MQ1 2025: $15.5MQ2 2025: $58.7MQ3 2025: $53.1MQ4 2025: $133.7MQ1 2026: $228.4MQ2 2026: $1.08B
Institutions holding SLS and their total value by quarter
QuarterHoldersValue
Q2 2026193$1.08B
Q1 2026160$228.4M
Q4 2025112$133.7M
Q3 202594$53.1M
Q2 202579$58.7M
Q1 202545$15.5M
Q4 202431$6.47M
Q3 202433$6.77M
Q2 202430$4.86M
Q1 202430$7.82M
Q4 202331$3.74M
Q3 202328$4.54M
Q2 202325$4.91M
Q1 202322$4.28M
Q4 202229$4.46M
Q3 202228$4.42M
Q2 202226$6.64M
Q1 202226$11.3M
Q4 202127$10.1M
Q3 202130$17.1M
Q2 202129$21.3M
Q1 202131$13.3M

Institutions, Q4 2024

Shares, value and share of portfolio for each institution holding SELLAS Life Sciences Group, Inc.; share changes are against Q3 2024.

Institutions holding SLS in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc2,292,857$2.38M0.00%00.0%Unchanged
Anson Funds Management LP1,192,266$1.24M0.15%+398,431+50.2%Added
Geode Capital Management, LLC733,546$763.2K0.00%+128,355+21.2%Added
Citadel Advisors LLC485,317$504.7K0.00%+437,998+925.6%Added
BlackRock, Inc.444,208$462.0K0.00%+12,590+2.9%Added
Opus Capital Group, LLC238,500$248.0K0.03%+12,400+5.5%Added
State Street Corp227,729$236.8K0.00%+53,200+30.5%Added
Northern Trust Corp134,721$140.1K0.00%+33,878+33.6%Added
UBS Group AG127,821$132.9K0.00%+127,821New
XTX Topco Ltd53,426$55.6K0.00%−9,359−14.9%Reduced
LPL Financial LLC51,894$54.0K0.00%00.0%Unchanged
Mariner, LLC50,609$52.6K0.00%+3,180+6.7%Added
Virtu Financial LLC41,155$43.0K0.00%−38,086−48.1%Reduced
Independent Financial Group, LLC23,250$24.2K0.00%00.0%Unchanged
Charles Schwab Investment Management Inc16,238$16.9K0.00%00.0%Unchanged
Morgan Stanley15,778$16.4K0.00%−1,657−9.5%Reduced
Goldman Sachs Group Inc15,683$16.3K0.00%+15,683New
Commonwealth Equity Services, LLC12,054$13.0K0.00%−3,500−22.5%Reduced
Jane Street Group, LLC12,304$12.8K0.00%+12,304New
Equitable Holdings, Inc.12,060$12.5K0.00%00.0%Unchanged
Prosperity Financial Group, Inc.11,500$12.0K0.01%+11,500New
Nemes Rush Group LLC10,000$10.4K0.00%00.0%Unchanged
SBI Securities Co., Ltd.5,464$5.68K0.00%+5,464New
Tower Research Capital LLC (TRC)5,305$5.52K0.00%+1,596+43.0%Added
R Squared Ltd2,197$2.29K0.00%+2,197New
Advisor Group Holdings, Inc.1,660$1.73K0.00%00.0%Unchanged
Bank of America Corp572$5950.00%+46+8.7%Added
Jones Financial Companies LLLP374$3890.00%00.0%Unchanged
Parkside Financial Bank & Trust2$30.00%00.0%Unchanged
FMR LLC1$10.00%−186−99.5%Reduced
Royal Bank of Canada200$00.00%00.0%Unchanged
Diametric Capital, LP0$00.00%−160,194−100.0%Sold out
Renaissance Technologies LLC0$00.00%−92,937−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−58,338−100.0%Sold out
Millennium Management LLC0$00.00%−46,335−100.0%Sold out
Two Sigma Investments, LP0$00.00%−16,591−100.0%Sold out
Calton & Associates, Inc.0$00.00%−14,000−100.0%Sold out
JPMorgan Chase & Co0$00.00%−5,789−100.0%Sold out
CWM, LLC0$00.00%−10−100.0%Sold out