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SELLAS Life Sciences Group (SLS) Institutional Ownership

SELLAS Life Sciences Group logo
$15.46 +2.06 (+15.37%)
As of 08/21/2026 04:00 PM Eastern
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Institutional Ownership Changes (13F Filings) for SELLAS Life Sciences Group (NASDAQ:SLS)

Current
Institutional Ownership
Percentage
17.38%
Number of
Institutional Buyers
(last 12 months)
62
Total
Institutional Inflows
(last 12 months)
$50.07M
Number of
Institutional Sellers
(last 12 months)
15
Total
Institutional Outflows
(last 12 months)
$7.74M
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SLS Institutional Buying and Selling by Quarter

SELLAS Life Sciences Group Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/21/2026 Nykredit A S1,839$27K0.0%N/A0.001%
8/19/2026 Wellington Management Group LLP597,309$8.82M0.0%+73.2%0.296%
8/6/2026 Bank of New York Mellon Corp530,025$7.82M0.0%N/A0.270%
7/10/2026 Dagco Inc.1,232,433$18.19M3.4%+19.8%0.627%
7/9/2026 Everhart Financial Group Inc.288,018$4.25M0.3%-21.0%0.146%
5/19/2026 Bank of America Corp DE641,683$2.71M0.0%+535.7%0.345%
5/18/2026California State Teachers Retirement System9,337$39K0.0%+22.4%0.005%
5/16/2026 The Manufacturers Life Insurance Company45,691$193K0.0%+20.2%0.025%
5/16/2026 Quantinno Capital Management LP74,378$315K0.0%N/A0.040%
5/6/2026 Independent Financial Group LLC23,250$98K0.0%N/A0.013%
5/5/2026 Wealthfront Advisers LLC11,436$48K0.0%N/A0.006%
5/5/2026 Bank of New York Mellon Corp478,366$2.02M0.0%+86.6%0.259%
5/4/2026 Principal Financial Group Inc.12,429$53K0.0%N/A0.007%
5/1/2026 Fifth Third Bancorp59,807$253K0.0%N/A0.032%
4/27/2026 World Investment Advisors24,616$104K0.0%-44.2%0.013%
4/23/2026 SJS Investment Consulting Inc.25,000$106K0.0%N/A0.014%
4/21/2026 Dagco Inc.1,028,780$4.35M0.9%+78.1%0.573%
4/16/2026 SG Americas Securities LLC15,166$64K0.0%-58.4%0.008%
4/16/2026 Financial Designs Corp23,327$99K0.1%N/A0.013%
3/13/2026 World Investment Advisors44,123$166K0.0%N/A0.031%
3/3/2026 Caitong International Asset Management Co. Ltd55,129$208K0.1%+408.9%0.039%
2/19/2026 Invesco Ltd.53,293$201K0.0%+6.2%0.037%
2/19/2026 Axxcess Wealth Management LLC35,370$133K0.0%+121.1%0.025%
2/18/2026 Beacon Pointe Advisors LLC10,000$38K0.0%N/A0.007%
2/18/2026 XTX Topco Ltd118,440$447K0.0%N/A0.083%
2/18/2026 Millennium Management LLC1,387,849$5.23M0.0%+341.0%0.974%
2/18/2026 Boothbay Fund Management LLC13,800$52K0.0%N/A0.010%
2/17/2026 Equitable Holdings Inc.32,060$121K0.0%+18.5%0.023%
2/17/2026 Price T Rowe Associates Inc. MD63,026$238K0.0%+31.4%0.044%
2/17/2026 Regal Investment Advisors LLC35,900$135K0.0%N/A0.025%
2/17/2026 Blair William & Co. IL26,002$98K0.0%+62.5%0.018%
2/16/2026 Squarepoint Ops LLC13,285$50K0.0%-71.2%0.009%
2/16/2026 Mariner LLC159,150$600K0.0%+46.3%0.112%
2/13/2026 Marshall Wace LLP1,340,668$5.05M0.0%-43.1%0.941%
2/13/2026 The Manufacturers Life Insurance Company 38,018$143K0.0%+13.6%0.027%
2/13/2026 Stifel Financial Corp13,036$49K0.0%N/A0.009%
2/13/2026 Charles Schwab Investment Management Inc.408,401$1.54M0.0%+38.9%0.287%
2/13/2026 Police & Firemen s Retirement System of New Jersey34,743$131K0.0%+48.8%0.024%
2/13/2026 State Street Corp2,188,171$8.25M0.0%+60.8%1.536%
2/13/2026 Caitong International Asset Management Co. Ltd19,777$75K0.2%+82.6%0.014%
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2/13/2026 Wells Fargo & Company MN299,305$1.13M0.0%+294.5%0.210%
2/12/2026 MetLife Investment Management LLC27,181$102K0.0%-32.0%0.019%
2/12/2026 Commonwealth Equity Services LLC29,244$110K0.0%+84.5%0.021%
2/12/2026 New York State Common Retirement Fund6,900$26K0.0%-86.0%0.005%
2/12/2026 Nuveen LLC1,023,961$3.86M0.0%+2.6%0.719%
2/11/2026 Deutsche Bank AG91,688$346K0.0%-24.2%0.064%
2/10/2026 Goldman Sachs Group Inc.411,654$1.55M0.0%+2,036.8%0.289%
2/10/2026 Intech Investment Management LLC40,272$152K0.0%-13.1%0.028%
2/9/2026 Geode Capital Management LLC3,077,337$11.60M0.0%+35.9%2.160%
2/9/2026 Millington Financial Advisors LLC25,000$93K0.0%N/A0.018%
2/6/2026 Axxcess Wealth Management LLC35,370$133K0.0%+121.1%0.025%
2/6/2026 GSA Capital Partners LLP345,052$1.30M0.1%-33.5%0.242%
2/6/2026 Larson Financial Group LLC6,993$26K0.0%N/A0.005%
2/6/2026 ProShare Advisors LLC22,638$85K0.0%+31.5%0.016%
2/4/2026 World Investment Advisors44,123$166K0.0%N/A0.031%
2/4/2026 Money Concepts Capital Corp10,600$40K0.0%N/A0.007%
2/3/2026 EWA LLC12,796$48K0.0%N/A0.009%
2/3/2026 Grange Capital LLC16,001$60K0.1%+18.5%0.011%
1/30/2026 Opus Capital Group LLC317,100$1.20M0.1%+26.8%0.223%
1/29/2026 Concurrent Investment Advisors LLC10,085$38K0.0%N/A0.007%
1/27/2026 NORTHSTAR ASSET MANAGEMENT Co50,000$188K0.0%+24.0%0.035%
1/26/2026CWM LLC11,782$44K0.0%+124.7%0.008%
1/23/2026 Visionary Horizons LLC36,000$136K0.1%N/A0.025%
1/15/2026Jaffetilchin Investment Partners LLC24,338$92K0.0%N/A0.017%
1/9/2026 SG Americas Securities LLC36,450$137K0.0%+88.2%0.026%
1/8/2026 Dagco Inc.577,540$2.18M0.5%N/A0.405%
1/7/2026 Everhart Financial Group Inc.466,216$1.76M0.2%+40.8%0.327%
1/1/2026 JPMorgan Chase & Co.40,722$66K0.0%-34.2%0.029%
11/17/2025 Millennium Management LLC314,702$507K0.0%-72.1%0.252%
11/17/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.44,647$72K0.0%-14.5%0.036%
11/17/2025 Bank of America Corp DE42,150$68K0.0%+21.9%0.034%
11/17/2025 Anson Funds Management LP6,032,938$9.71M0.8%+2,093.8%4.823%
11/14/2025 Equitable Holdings Inc.27,060$44K0.0%+58.6%0.022%
11/14/2025 Two Sigma Investments LP145,856$235K0.0%-26.2%0.117%
11/14/2025 Squarepoint Ops LLC46,180$74K0.0%+186.4%0.037%
11/13/2025 Sei Investments Co.26,581$43K0.0%N/A0.021%
11/13/2025 BNP Paribas Financial Markets19,724$32K0.0%+89.2%0.016%
11/12/2025 Trustmark Bank Trust Department36,511$59K0.0%N/A0.029%
11/7/2025 Axxcess Wealth Management LLC16,000$26K0.0%N/A0.013%
11/7/2025 GSA Capital Partners LLP518,995$836K0.1%+21.7%0.415%
11/7/2025Vanguard Group Inc.6,839,905$11.01M0.0%+2.8%5.468%
11/7/2025 JPMorgan Chase & Co.40,722$66K0.0%-34.2%0.033%
11/4/2025 Tyche Wealth Partners LLC37,500$60K0.0%N/A0.030%
11/4/2025 Everhart Financial Group Inc.331,150$533K0.1%N/A0.265%
11/3/2025 Genesee Capital Advisors LLC30,000$48K0.0%N/A0.024%
10/31/2025 Instrumental Wealth LLC44,914$72K0.1%N/A0.036%
10/31/2025 Stoneridge Investment Partners LLC53,709$86K0.1%N/A0.043%
10/31/2025 Opus Capital Group LLC250,000$403K0.0%+4.2%0.200%
10/29/2025 Scissortail Wealth Management LLC27,322$44K0.0%N/A0.022%
10/22/2025 NORTHSTAR ASSET MANAGEMENT Co40,320$65K0.0%N/A0.032%
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10/9/2025 Voya Investment Management LLC17,444$28K0.0%-36.6%0.017%
8/15/2025 Great Valley Advisor Group Inc.20,000$44K0.0%N/A0.019%
8/15/2025 Bank of America Corp DE34,579$76K0.0%+5,459.3%0.033%
8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.52,210$114K0.0%N/A0.052%
8/14/2025 The Manufacturers Life Insurance Company 34,551$76K0.0%N/A0.035%
8/13/2025 Marshall Wace LLP2,715,489$5.95M0.0%+23,550.0%2.721%
8/13/2025 Invesco Ltd.50,166$110K0.0%N/A0.050%
8/13/2025 New York State Common Retirement Fund49,300$108K0.0%N/A0.049%
8/12/2025 XTX Topco Ltd76,900$168K0.0%N/A0.077%
8/12/2025 Rhumbline Advisers135,789$297K0.0%N/A0.136%


SLS Institutional Ownership - Frequently Asked Questions

During the previous two years, 77 institutional investors and hedge funds held shares of SELLAS Life Sciences Group. The most heavily invested institutionals were Dagco Inc. ($18.19M), Geode Capital Management LLC ($11.60M), Vanguard Group Inc. ($11.01M), Anson Funds Management LP ($9.71M), Wellington Management Group LLP ($8.82M), State Street Corp ($8.25M), and Bank of New York Mellon Corp ($7.82M).Learn more on SELLAS Life Sciences Group's institutional investors.

17.38% of SELLAS Life Sciences Group's stock is owned by institutional investors. Learn more on SLS's institutional investor holdings.

Of the 73 institutional investors that purchased SELLAS Life Sciences Group's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Anson Funds Management LP ($13.34M), Marshall Wace LLP ($2.70M), Geode Capital Management LLC ($2.41M), Dagco Inc. ($1.23M), Brooklyn FI LLC ($1.19M), Millennium Management LLC ($1.07M), and State Street Corp ($867.76K).

Institutional investors have bought a total of 14,087,932 shares in the last 24 months. This purchase volume represents approximately $50.07M in transactions.

Of the 15 institutional investors that sold SELLAS Life Sciences Group's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Marshall Wace LLP ($1.02M), Millennium Management LLC ($812.52K), GSA Capital Partners LLP ($173.94K), Everhart Financial Group Inc. ($76.38K), Two Sigma Investments LP ($51.79K), New York State Common Retirement Fund ($42.40K), and JPMorgan Chase & Co. ($42.34K).

Institutional investors have sold a total of 2,356,220 shares in the last 24 months. This volume of shares sold represents approximately $7.74M in transactions.


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Institutional ownership data for NASDAQ:SLS is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/21/2026. New 13F filings are added each quarter as they're published.
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