Firm profile

Bienville Capital Management, LLC

NEW YORK, NYCRD 149320Registration Status: ApprovedEffective since January 26, 2009SEC # 801-69892Latest ADV March 10, 2026

Bienville Capital Management, LLC is an SEC registered investment adviser organized as a limited liability company with a primary office location in New York, NY. Its latest Form ADV filing, dated March 10, 2026, reports $4.5B in regulatory assets under management, 27 employees, 3 offices, and 1,191 accounts.

Assets Under Management
$4.5B
Employees
27
Offices
3 offices
Total Clients
90

Associated firm names

1 name listed
  • BIENVILLE CAPITAL MANAGEMENT, LLC

Leadership

5 roles identified
CEOWilliam H. Stimpson
CCOAbigail J. Penzell
CFOAlan J. Speer

Advisory services offered

5 types reported
Other advisory services
Portfolio management for businesses
Portfolio management for individuals and small businesses

Fee models offered

3 types reported
Asset based fees
Fixed fees
Performance-based fees

Offices & Contact

Primary office

NEW YORK, New York, United States

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Primary office regionOther reported regions

Shading shows states and countries with reported offices. Cities are listed below; shading does not indicate service coverage.

New York

NEW YORKPrimary office

California

MALIBU

Florida

MIAMI

3 office records listed · 3 total offices reported. Counts can use different reporting dates. SEC filers may list only their largest 25 additional offices.

Contact and digital presence

ADV profile links

Regulatory Assets Under Management Breakdown

Total regulatory assets under management$4.5Bas of March 10, 2026
Discretionary40.0%
$1.8B
40% of total RAUM40.0%
Non-discretionary60.0%
$2.7B
60% of total RAUM60.0%
Regulatory assets under management are split between discretionary and non-discretionary assets.

Client Coverage Demographics

Top client segmentHNWI represent 58.9% of total clients.
Top client categories% of clientsClients
1
HNWI
58.9%
53
2
Pooled Investment Vehicles
16.7%
15
3
Corporations
15.6%
14
4
Individuals
8.9%
8
Categories with <5 clients
Charitable Organizations<5 clients

Assets under management Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total AUM$4.5B
Total Accounts1,191
10Y AUM Change+$3.5B (+370.1%)

Private Funds

Private funds reported by Bienville Capital Management, LLC

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Employee Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total Employees27
Clients per Employee3:1
10Y Employee Change+11 (+68.8%)

Historical AUM and employee figures reflect available SEC Form ADV filings under this CRD. Filing gaps may reflect registration status changes, dormant periods, state registration periods, firm restructuring, or other reporting changes. Rialytix does not interpolate missing periods.


Ownership

Reported direct and indirect ownership ranges

Each range applies to a separate reported relationship and should not be added together.

Reported ownership ranges

Highlighted bands show the percentage range reported in Form ADV.

0%25%50%75%100%
MICHAEL CULLEN THOMPSONDirect owner · Schedule AInterest in BIENVILLE CAPITAL MANAGEMENT, LLC
25% to < 50%
WILLIAM HERBERT STIMPSONDirect owner · Schedule AInterest in BIENVILLE CAPITAL MANAGEMENT, LLC
25% to < 50%
MOONPIE MANAGEMENT, LLCDirect owner · Schedule AInterest in BIENVILLE CAPITAL MANAGEMENT, LLC
10% to < 25%
RALPH FADEN REYNOLDSIndirect owner · Schedule BInterest in MOONPIE MANAGEMENT, LLC
75%+

Bars represent the reported range at that individual ownership step, not an estimated percentage of the advisory firm. Indirect relationships may refer to intermediate entities rather than directly to Bienville Capital Management, LLC.

Reported ownership and control details

Form ADV · Filing date 2026-03-10 · Schedules A and B

7 entries
#Owner / person & roleInterest in entityReported interestControl personTitle / status acquiredSource
1MICHAEL CULLEN THOMPSONMEMBER / CHIEF INVESTMENT OFFICERIndividualBIENVILLE CAPITAL MANAGEMENT, LLC25% to less than 50%Code CYesMEMBER / CHIEF INVESTMENT OFFICER01/2009Schedule APDF page 91
2WILLIAM HERBERT STIMPSONMEMBER / CHIEF EXECUTIVE OFFICERIndividualBIENVILLE CAPITAL MANAGEMENT, LLC25% to less than 50%Code CYesMEMBER / CHIEF EXECUTIVE OFFICER01/2009Schedule APDF page 91
3MOONPIE MANAGEMENT, LLCMEMBERDomestic entityBIENVILLE CAPITAL MANAGEMENT, LLC10% to less than 25%Code BYesMEMBER01/2009Schedule APDF page 91
4ALAN JEFFREY SPEERCHIEF FINANCIAL OFFICERIndividualBIENVILLE CAPITAL MANAGEMENT, LLCLess than 5%Code NAYesCHIEF FINANCIAL OFFICER01/2017Schedule APDF page 91
5ABIGAIL JUDITH PENZELLGENERAL COUNSEL / CHIEF COMPLIANCE OFFICERIndividualBIENVILLE CAPITAL MANAGEMENT, LLCLess than 5%Code NAYesGENERAL COUNSEL / CHIEF COMPLIANCE OFFICER05/2018Schedule APDF page 91
6MICHAEL AARON JEMALCHIEF OPERATING OFFICERIndividualBIENVILLE CAPITAL MANAGEMENT, LLCLess than 5%Code NAYesCHIEF OPERATING OFFICER11/2022Schedule APDF page 91
7RALPH FADEN REYNOLDSMEMBERIndividualMOONPIE MANAGEMENT, LLC75% or moreCode EYesMEMBER01/2009Schedule BPDF page 91

Less than 5% may include zero. Code F identifies a role without specifying a percentage. Reported interests may overlap and may not include every owner. Total indirect ownership is not calculated.

Compliance & Disclosures

Filing dated 3/10/2026 7:11:27 PM

Responses were selected by the RIA in its filing. Questions are shortened for readability; “you” refers to the reporting firm, and some questions also cover advisory affiliates.

RIA or supervised-person involvementThe RIA reported that none of the events below involve the firm or its supervised persons.RIA responseNo
AFelonies2 No

In the past ten years, have you or any advisory affiliate:

  • A1Been convicted of or pleaded guilty or no contest to a felony?No
  • A2Been charged with a felony?No
BMisdemeanors2 No

In the past ten years, have you or any advisory affiliate:

  • B1Been convicted of or pleaded guilty or no contest to a misdemeanor involving investments, an investment-related business, fraud, false statements or omissions, wrongful taking of property, bribery, perjury, forgery, counterfeiting, or extortion?No
  • B2Been charged with a misdemeanor of the kind listed above?No
CSEC or CFTC actions5 No

Has the SEC or CFTC ever:

  • C1Found you or an advisory affiliate made a false statement or omission?No
  • C2Found you or an advisory affiliate violated SEC or CFTC regulations or statutes?No
  • C3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • C4Entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • C5Imposed a civil money penalty on you or an advisory affiliate, or ordered you or an advisory affiliate to cease and desist from any activity?No
DOther regulatory actions5 No

Has any other federal regulatory agency, state regulatory agency, or foreign financial regulatory authority ever:

  • D1Found you or an advisory affiliate made a false statement or omission, or was dishonest, unfair, or unethical?No
  • D2Found you or an advisory affiliate violated investment-related regulations or statutes?No
  • D3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • D4In the past ten years, entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • D5Denied, suspended, or revoked your or an advisory affiliate’s registration or license, or otherwise prevented association with an investment-related business or restricted activities?No
ESelf-regulatory organization actions4 No

Has a self-regulatory organization or commodities exchange ever:

  • E1Found you or an advisory affiliate made a false statement or omission?No
  • E2Found you or an advisory affiliate violated its rules, other than a violation designated as a minor rule violation under an SEC-approved plan?No
  • E3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • E4Disciplined you or an advisory affiliate by expulsion, suspension, barring association with other members, or otherwise restricting activities?No
FProfessional authorizations1 No
  • FHas an authorization to act as an attorney, accountant, or federal contractor granted to you or an advisory affiliate ever been revoked or suspended?No
GPending regulatory proceedings1 No
  • GAre you or any advisory affiliate now the subject of a regulatory proceeding that could result in a “Yes” answer to any part of C, D, or E?No
HCivil judicial actions and proceedings4 No

(1) Court actions

Has a domestic or foreign court:

  • H(1)(a)In the past ten years, enjoined you or an advisory affiliate in connection with investment-related activity?No
  • H(1)(b)Found that you or an advisory affiliate violated investment-related statutes or regulations?No
  • H(1)(c)Dismissed, pursuant to a settlement agreement, an investment-related civil action brought against you or an advisory affiliate by a state or foreign financial regulatory authority?No

(2) Pending civil proceedings

  • H(2)Are you or any advisory affiliate now the subject of a civil proceeding that could result in a “Yes” answer to any part of H(1)?No

* Metrics are based on the latest available data, including Form ADV filings, brochures, and relationship summaries pulled from the SEC IAPD, and may be subject to change. Learn what is included in the Rialytix data. Please refer to the firm's official disclosures for the most accurate information using their CRD number. This is not investment advice.