Firm profile

Gladstone Management Corporation

MCLEAN, VACRD 122482Registration Status: ApprovedEffective since September 13, 2002SEC # 801-61440Latest ADV September 21, 2026

Gladstone Management Corporation is an SEC registered investment adviser organized as a corporation with a primary office location in Mclean, VA. Its latest Form ADV filing, dated September 21, 2026, reports $4.8B in regulatory assets under management, 45 employees, 6 offices, and 5 accounts.

Assets Under Management
$4.8B
Employees
45
Offices
6 offices
Total Clients
5

Associated firm names

2 names listed
  • GLADSTONE MANAGEMENT CORPORATION
  • THE GLADSTONE COMPANIES

Leadership

3 roles identified
CEODavid J. Gladstone
CCOJohn A. Dellafiora
CFOMichael J. Malesardi

Advisory services offered

2 types reported
Other advisory services
Portfolio management for investment companies

Fee models offered

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

Offices & Contact

Primary office

MCLEAN, Virginia, 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.

Virginia

MCLEANPrimary office

California

CAMARILLO

Florida

BRANDON

New York

NEW YORK

Oklahoma

TULSA

Texas

DALLAS

6 office records listed · 6 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$4.8Bas of September 21, 2026
Discretionary100.0%
$4.8B
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 segmentBDCs represent 40.0% of total clients.
Top client categories% of clientsClients
1
BDCs
40.0%
2
2
Irrevocable Trusts/Estates
40.0%
2
3
Investment Cos.
20.0%
1

Assets under management Growth by Quarter

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

Total AUM$4.8B
Total Accounts5
10Y AUM Change+$2.6B (+116.9%)

Private Funds

Private funds reported by Gladstone Management Corporation

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Employee Growth by Quarter

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

Total Employees45
Clients per Employee0:1
10Y Employee Change0 (0.0%)

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%
THE GLADSTONE COMPANIES, INC.Direct owner · Schedule AInterest in GLADSTONE MANAGEMENT CORPORATION
75%+
DAVID JOHN GLADSTONEDirect owner · Schedule AInterest in GLADSTONE MANAGEMENT CORPORATION
10% to < 25%
LAURA PATRICIA GLADSTONEDirect owner · Schedule AInterest in GLADSTONE MANAGEMENT CORPORATION
10% to < 25%
Lorna GladstoneDirect owner · Schedule AInterest in GLADSTONE MANAGEMENT CORPORATION
10% to < 25%
KENT ELIZABETH GLADSTONEDirect owner · Schedule AInterest in GLADSTONE MANAGEMENT CORPORATION
10% to < 25%
Jessisa Gladstone MartinDirect owner · Schedule AInterest in GLADSTONE MANAGEMENT CORPORATION
10% to < 25%
DAVID JOHN GLADSTONEIndirect owner · Schedule BInterest in THE GLADSTONE COMPANIES, LTD
75%+
THE GLADSTONE COMPANIES, LTDIndirect owner · Schedule BInterest in THE GLADSTONE COMPANIES, INC.
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 Gladstone Management Corporation.

Reported ownership and control details

Form ADV · Filing date 2026-09-21 · Schedules A and B

12 entries
#Owner / person & roleInterest in entityReported interestControl personTitle / status acquiredSource
1DAVID JOHN GLADSTONECHAIRMAN, CHIEF EXECUTIVE OFFICER AND TRUSTEE UNDER VOTING AGREEMENTIndividualGLADSTONE MANAGEMENT CORPORATION10% to less than 25%Code BYesCHAIRMAN, CHIEF EXECUTIVE OFFICER AND TRUSTEE UNDER VOTING AGREEMENT06/2002Schedule APDF page 24
2JOHN ANTHONY DELLAFIORACHIEF COMPLIANCE OFFICERIndividualGLADSTONE MANAGEMENT CORPORATIONLess than 5%Code NAYesCHIEF COMPLIANCE OFFICER09/2007Schedule APDF page 24
3THE GLADSTONE COMPANIES, INC.SHAREHOLDERDomestic entityGLADSTONE MANAGEMENT CORPORATION75% or moreCode EYesSHAREHOLDER01/2010Schedule APDF page 24
4MICHAEL BERNARD LICALSICHIEF ADMINISTRATIVE OFFICER, CO-GENERAL COUNSELIndividualGLADSTONE MANAGEMENT CORPORATIONLess than 5%Code NAYesCHIEF ADMINISTRATIVE OFFICER, CO-GENERAL COUNSEL10/2009Schedule APDF page 24
5MICHAEL JOHN MALESARDICHIEF FINANCIAL OFFICERIndividualGLADSTONE MANAGEMENT CORPORATIONLess than 5%Code NAYesCHIEF FINANCIAL OFFICER09/2018Schedule APDF page 24
6LAURA PATRICIA GLADSTONEDIRECTOR AND TRUSTEE UNDER VOTING AGREEMENTIndividualGLADSTONE MANAGEMENT CORPORATION10% to less than 25%Code BYesDIRECTOR AND TRUSTEE UNDER VOTING AGREEMENT05/2023Schedule APDF page 24
7ERICH MICHAEL HELLMOLDCO-GENERAL COUNSELIndividualGLADSTONE MANAGEMENT CORPORATIONLess than 5%Code NANoCO-GENERAL COUNSEL07/2025Schedule APDF page 24
8Lorna GladstoneDIRECTOR AND TRUSTEE UNDER VOTING AGREEMENTIndividualGLADSTONE MANAGEMENT CORPORATION10% to less than 25%Code BYesDIRECTOR AND TRUSTEE UNDER VOTING AGREEMENT01/2025Schedule APDF page 24
9KENT ELIZABETH GLADSTONETRUSTEE UNDER VOTING AGREEMENTIndividualGLADSTONE MANAGEMENT CORPORATION10% to less than 25%Code BNoTRUSTEE UNDER VOTING AGREEMENT01/2025Schedule APDF page 24
10Jessisa Gladstone MartinTRUSTEE UNDER VOTING AGREEMENTIndividualGLADSTONE MANAGEMENT CORPORATION10% to less than 25%Code BNoTRUSTEE UNDER VOTING AGREEMENT01/2025Schedule APDF page 24
11DAVID JOHN GLADSTONESHAREHOLDERIndividualTHE GLADSTONE COMPANIES, LTD75% or moreCode EYesSHAREHOLDER06/2002Schedule BPDF page 25
12THE GLADSTONE COMPANIES, LTDSHAREHOLDERForeign entityTHE GLADSTONE COMPANIES, INC.75% or moreCode EYesSHAREHOLDER05/2016Schedule BPDF page 25

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 9/21/2026 3:59:52 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.