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Private company

ProShare Advisors LLC

Limited liability company registered in the United States, active since 2005. Summary from the record

Last updated Oct 21, 2026.

Overview

  • HeadquartersBethesda, United States2
  • Legal formLimited Liability Company2
  • LEI549300EP8KSLVZGKGX972
  • StatusActive2
  • LEI statusIssued and current2
  • Registered addressC/O CSC-LAWYERS INCORPORATING SERVICE COMPANY, 21202 Baltimore, United States2
  • Registered withBusiness Services (Maryland Department of Assessments and Taxation), W104179622

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Corporate structure

ProShare Advisors LLC sits at the top of its group. 372 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of ProShare Advisors LLC

  • Michael Lynn Sapir Owns 25% to 50% of ProShare Advisors LLC, since 01/2005 (Form ADV)
  • Louis Mark Mayberg Owns 25% to 50% of ProShare Advisors LLC, since 01/2005 (Form ADV)
  • Dorot Owns 10% to 25% of ProShare Advisors LLC, since 06/2006 (Form ADV)
  • Radcliff Ps I LLC Owns 10% to 25% of ProShare Advisors LLC, since 05/2024 (Form ADV)
  • Skipton Creek LLC Owns 10% to 25% of ProShare Advisors LLC, since 07/2025 (Form ADV)
  • Edith Gelfand Owns control (general partner, trustee or manager) of Dorot, since 09/2013 (Form ADV)
  • ProShare Advisors LLC Bethesda, Maryland, United States
    • PetMed Express Stake · Delray Beach, Florida, United States
    • ProShares Cayman Bitcoin Inverse Strategy Portfolio Subsidiary · George Town, Cayman Islands
    • ProShares Trust - ProShares Short S&P Regional Banking Subsidiary · Bethesda, Maryland, United States
    • ProShares Trust - ProShares Ultra S&P Regional Banking Subsidiary · Bethesda, Maryland, United States
    • ProShares Cayman AI Computing Power Portfolio Fund · Bethesa, Maryland, United States
    • ProShares Cayman Bitcoin & Ether Equal Weight Strategy Portfolio Fund · Bethesda, Maryland, United States
    • ProShares Cayman Bitcoin & Ether Strategy Portfolio Fund · Bethesa, Maryland, United States
    • PROSHARES CAYMAN COINDESK 20 CRYPTO PORTFOLIO Fund · Bethesda, Maryland, United States
    • ProShares Cayman Ether Strategy Portfolio Fund · Bethesa, Maryland, United States
    • ProShares Cayman Nasdaq-100 Bitcoin Portfolio Fund · Bethesda, Maryland, United States
    • ProShares Cayman S&P 500 Bitcoin Portfolio Fund · Bethesda, Maryland, United States
    • ProShares Cayman Short AI Computing Power Portfolio Fund · Bethesa, Maryland, United States
    • ProShares Cayman Short Bitcoin Portfolio Fund · Bethesa, Maryland, United States
    • ProShares Cayman Short Ether Strategy Portfolio Fund · Bethesa, Maryland, United States
    • ProShares Cayman Short Solana Portfolio Fund · Bethesda, Maryland, United States
    • ProShares Cayman Short XRP Portfolio Fund · Bethesda, Maryland, United States
    • ProShares Cayman Solana Portfolio Fund · Bethesda, Maryland, United States
    • ProShares Cayman Ultra AI Computing Power Portfolio Fund · Bethesa, Maryland, United States
    • ProShares Cayman Ultra Bitcoin Portfolio Fund · Bethesa, Maryland, United States
    • ProShares Cayman Ultra Ether Portfolio Fund · Bethesda, Maryland, United States
    • ProShares Cayman Ultra Solana Portfolio Fund · Bethesda, Maryland, United States
    • ProShares Cayman Ultra XRP Portfolio Fund · Bethesda, Maryland, United States
    • ProShares Cayman UltraShort AI Computing Power Portfolio Fund · Bethesa, Maryland, United States
    • ProShares Cayman UltraShort Bitcoin Portfolio Fund · Bethesa, Maryland, United States
    • ProShares Cayman UltraShort Ether Portfolio Fund · Bethesda, Maryland, United States
    • and 346 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); stakes of 5% or more it reported on Schedules 13D and 13G (1 companies); owners and owned firms from Form ADV, the registration investment advisers file with the SEC. Each entity in the chart links to its source.

Investment adviser

ProShare Advisors LLC is registered with the SEC as an investment adviser. This is what it reports on Form ADV, the registration every adviser files and keeps current.

  • Assets it manages$85.3B3 145 accounts, all with discretion
  • Employees98 35 in investment advice or research
  • ClientsInvestment companies: 145 ($85.3B)
  • How it is paidA percentage of assets under its management
  • What it doesPortfolio management for investment companies; Other: COMMODITY POOL OPERATOR
  • Holds client assetsNo
  • Client brochureExempt from delivering one (Form ADV Part 2), so there is none to quote
  • RegistrationSEC 801-64181, CRD 134155 IAPD record

Who owns it

Owners of 5% or more as the firm lists them (Schedule A), and the owners of those owners up the chain (Schedule B).

  • Louis Mark Maybergowns 25% to 50%, since 01/2005
  • Michael Lynn Sapirowns 25% to 50%, since 01/2005
  • DOROTowns 10% to 25%, since 06/2006
  • RADCLIFF PS I LLCowns 10% to 25%, since 05/2024
  • SKIPTON CREEK LLCowns 10% to 25%, since 07/2025
  • Edith Gelfandowns general partner, trustee or manager of DOROT, since 09/2013
  • Michael Lynn Sapirowns general partner, trustee or manager of SKIPTON CREEK LLC, since 07/2025

Timeline

  1. Jan 14, 2005Founded ProShare Advisors LLC is founded2

Filings

23 filings to the SEC since October 2021: 23 other. The latest 20:

  1. Aug 11, 202613F-HR EDGAR
  2. Apr 27, 202613F-HR EDGAR
  3. Feb 6, 202613F-HR EDGAR
  4. Dec 29, 202540-APP/A EDGAR
  5. Nov 6, 202513F-HR EDGAR
  6. Oct 23, 202540-APP EDGAR
  7. Aug 7, 202513F-HR EDGAR
  8. May 8, 202513F-HR EDGAR
  9. Feb 14, 202513F-HR EDGAR
  10. Nov 14, 202413F-HR EDGAR
  11. Aug 13, 202413F-HR EDGAR
  12. May 8, 202413F-HR EDGAR
  13. Feb 14, 202413F-HR EDGAR
  14. Nov 13, 202313F-HR EDGAR
  15. Aug 10, 202313F-HR EDGAR
  16. May 26, 202313F-HR/A EDGAR
  17. May 12, 202313F-HR EDGAR
  18. Feb 2, 202313F-HR EDGAR
  19. Nov 7, 202213F-HR EDGAR
  20. Aug 1, 202213F-HR EDGAR

The 23 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Stakes it holds

ProShare Advisors LLC has told the SEC it owns more than 5% of 1 company, latest first (Schedules 13D and 13G).

Sources

The numbers on this page point here. Each one links to the record it came from.

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