Firm profile

Westport Capital Partners LLC

DARIEN, CTCRD 157493Registration Status: ApprovedEffective since October 19, 2011SEC # 801-72750Latest ADV August 25, 2026

Westport Capital Partners LLC is an SEC registered investment adviser organized as a limited liability company with a primary office location in Darien, CT. Its latest Form ADV filing, dated August 25, 2026, reports $8.9B in regulatory assets under management, 34 employees, 3 offices, and 37 accounts.

Assets Under Management
$8.9B
Employees
34
Offices
3 offices
Total Clients
37

Associated firm names

4 names listed
  • FR INVESTMENT MANAGER, LLC ("RELYING ADVISER")
  • WESTPORT CAPITAL PARTNERS LLC
  • WESTPORT CAPITAL PARTNERS (UK) LLP ("RELYING ADVISER")
  • WCP INVESTMENT MANAGER, LLC ("RELYING ADVISER")

Leadership

1 roles identified
CCOValerie L. Speare

Advisory services offered

2 types reported
Portfolio management for businesses
Portfolio management for pooled investment vehicles

Fee models offered

3 types reported
Asset based fees
Other fee arrangements
Performance-based fees

Offices & Contact

Primary office

DARIEN, Connecticut, 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.

Connecticut

DARIENPrimary office

California

EL SEGUNDO

2 office records listed · 3 total offices reported. 1 additional office addresses are undisclosed and are not mapped. 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$8.9Bas of August 25, 2026
Discretionary100.0%
$8.9B
100% of total RAUM100.0%
Non-discretionary0.0%
$0
0% of total RAUM0.0%
All regulatory assets under management are discretionary.

Client Coverage Demographics

Top client segmentPooled Investment Vehicles represent 89.2% of total clients.
Top client categories% of clientsClients
1
Pooled Investment Vehicles
89.2%
33
2
Irrevocable Trusts/Estates
8.1%
3
3
Sovereign Wealth
2.7%
1
Categories with <5 clients
Sovereign wealth funds and foreign official institutions<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$8.9B
Total Accounts37
10Y AUM Change+$6.2B (+225.0%)

Private Funds

Private funds reported by Westport Capital Partners 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 Employees34
Clients per Employee1:1
10Y Employee Change+3 (+9.7%)

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%
WCP HOLDING COMPANY, LLCDirect owner · Schedule AInterest in WESTPORT CAPITAL PARTNERS LLC
75%+
WESTPORT CAPITAL PARTNERS, LPIndirect owner · Schedule BInterest in WCP HOLDING COMPANY, 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 Westport Capital Partners LLC.

Reported ownership and control details

Form ADV · Filing date 2026-08-25 · Schedules A and B

10 entries
#Owner / person & roleInterest in entityReported interestControl personTitle / status acquiredSource
1SEAN FREDERICK ARMSTRONGMANAGING PRINCIPALIndividualWESTPORT CAPITAL PARTNERS LLCLess than 5%Code NAYesMANAGING PRINCIPAL04/2006Schedule APDF page 201
2PETER ARONSONPRINCIPALIndividualWESTPORT CAPITAL PARTNERS LLCLess than 5%Code NAYesPRINCIPAL04/2006Schedule APDF page 201
3HOWARD BENJAMIN FIFEPRINCIPAL AND HEAD TRADERIndividualWESTPORT CAPITAL PARTNERS LLCLess than 5%Code NAYesPRINCIPAL AND HEAD TRADER07/2006Schedule APDF page 201
4MARC JEFFREY POROSOFFPRINCIPAL AND GENERAL COUNSELIndividualWESTPORT CAPITAL PARTNERS LLCLess than 5%Code NAYesPRINCIPAL AND GENERAL COUNSEL04/2006Schedule APDF page 201
5STEVEN ALAN RUSSELLPRINCIPAL AND CHIEF ADMINISTRATIVE OFFICERIndividualWESTPORT CAPITAL PARTNERS LLCLess than 5%Code NAYesPRINCIPAL AND CHIEF ADMINISTRATIVE OFFICER01/2011Schedule APDF page 201
6JORDAN SEAN SOCARANSKYPRINCIPALIndividualWESTPORT CAPITAL PARTNERS LLCLess than 5%Code NAYesPRINCIPAL04/2006Schedule APDF page 201
7WCP HOLDING COMPANY, LLCSOLE MEMBER (WESTPORT CAPITAL PARTNERS LLC)Domestic entityWESTPORT CAPITAL PARTNERS LLC75% or moreCode EYesSOLE MEMBER (WESTPORT CAPITAL PARTNERS LLC)07/2014Schedule APDF page 201
8VALERIE LYNN SPEARECHIEF COMPLIANCE OFFICERIndividualWESTPORT CAPITAL PARTNERS LLCLess than 5%Code NAYesCHIEF COMPLIANCE OFFICER02/2024Schedule APDF page 201
9WESTPORT CAPITAL PARTNERS, LPSOLE MEMBERDomestic entityWCP HOLDING COMPANY, LLC75% or moreCode EYesSOLE MEMBER07/2014Schedule BPDF page 202
10WCP GP, LLCGENERAL PARTNERDomestic entityWESTPORT CAPITAL PARTNERS, LPPercentage not specifiedCode FYesGENERAL PARTNER07/2014Schedule BPDF page 202

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 8/25/2026 10:45:29 AM

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.