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Ethan Russell Oetter

Long River Investment Management LLC

St. Louis, MO

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Current Employers
Long River Investment Management Llc

St. Louis, MO • United States

Current Registrations

AuthorityCategoryStatusDate
FL RA APPROVED 2024-10-09
SC RA APPROVED 2023-12-14
TX RA APPROVED_RES 2023-08-30
MO RA APPROVED 2018-10-31
  • FL RA
    APPROVED
    Since 2024-10-09
  • SC RA
    APPROVED
    Since 2023-12-14
  • TX RA
    APPROVED_RES
    Since 2023-08-30
  • MO RA
    APPROVED
    Since 2018-10-31

Branch Locations

St. Louis, MO • United States

Disclosures

No disclosure categories reported as “Yes” on this SEC record.

  • Regulatory action No
  • Criminal No
  • Bankruptcy No
  • Civil judicial No
  • Bond No
  • Judgment / lien No
  • Investigation No
  • Customer complaint No
  • Termination No
Employment History
OrganizationCityStateFromTo
Long River Investment Management Llc Charleston SC 06/2018 07/2025
Twin Springs Investments, Llc St Louis MO 11/2017 11/2019
Unemployed New York NY 09/2017 10/2017
Runtide Capital Management, Llc New York NY 06/2017 08/2017
Yale School Of Management New Haven CT 08/2015 05/2017
Twin Springs Investments, Llc St Louis MO 11/2019 Present
Long River Investment Management, Llc St. Louis MO 07/2025 Present
  • 06/2018 → 07/2025
    Charleston, SC
  • 11/2017 → 11/2019
    Twin Springs Investments, Llc
    St Louis, MO
  • 09/2017 → 10/2017
    Unemployed
    New York, NY
  • 06/2017 → 08/2017
    Runtide Capital Management, Llc
    New York, NY
  • 08/2015 → 05/2017
    Yale School Of Management
    New Haven, CT
  • 11/2019 → Present
    Twin Springs Investments, Llc
    St Louis, MO
  • 07/2025 → Present
    St. Louis, MO
Other Businesses

Mr. Oetter is employed by Twin Springs Family Office & Charitable Foundation, an investment-related business, on a contract basis for administrative work. Twin Springs is located at 21 North Meramec Avenue, St. Louis, Missouri 63105. Mr. Oetter was formerly the CIO for Twin Springs, but in November 2019 he resigned as CIO, and continues to work as an independent contractor for the firm. His work consists of compiling data from private equity reports into spreadsheets and organizing K-1s. He spends about 25 hours annually on this commitment, which is purely clerical and does not require Mr. Oetter to act in an Investment Advisor capacity whatsoever. He does not do this during business hours.

Exams
CodeExamDate
S65 Uniform Investment Adviser Law Examination 2018-07-18
  • S65 Uniform Investment Adviser Law Examination
    2018-07-18
Other Names
  • Ethan R. Oetter

View on SEC IAPD

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