Firm profile

Gilbert & Cook, Inc..

WEST DES MOINES, IACRD 283112Registration Status: ApprovedEffective since April 14, 2016SEC # 801-107546Latest ADV June 4, 2026

Gilbert & Cook, Inc. is an SEC registered investment adviser organized as a corporation with a primary office location in West Des Moines, IA. Its latest Form ADV filing, dated June 4, 2026, reports $1.7B in regulatory assets under management, 32 employees, 1 office, and 3,792 accounts.

Assets Under Management
$1.7B
Employees
32
Offices
1 office
Total Clients
901

Associated firm names

1 name listed
  • GILBERT & COOK, INC.

Leadership

2 roles identified
CEOLinda L. Cook
CCOAndy J. Armstrong

Advisory services offered

5 types reported
Financial Planning Services
Pension consulting services
Portfolio management for businesses

Fee models offered

3 types reported
Asset based fees
Fixed fees
Hourly charges

Offices & Contact

Primary office

WEST DES MOINES, Iowa, 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.

Iowa

WEST DES MOINESPrimary office

1 office records listed · 1 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$1.7Bas of June 4, 2026
Discretionary98.5%
$1.7B
99% of total RAUM98.5%
Non-discretionary1.5%
$25M
1% of total RAUM1.5%
Regulatory assets under management are split between discretionary and non-discretionary assets.

Client Coverage Demographics

Top client segmentIndividuals represent 50.8% of total clients.
Top client categories% of clientsClients
1
Individuals
50.8%
458
2
HNWI
46.7%
421
3
Charitable
1.4%
13
4
Corporations
1.0%
9

Assets under management Growth by Quarter

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

Total AUM$1.7B
Total Accounts3,792
10Y AUM Change+$1.4B (+426.5%)

Private Funds

Private funds reported by Gilbert & Cook, Inc..

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Employee Growth by Quarter

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

Total Employees32
Clients per Employee28:1
10Y Employee Change+17 (+113.3%)

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%
MEGAN LEIGH ROSENSTIELDirect owner · Schedule AInterest in GILBERT & COOK, INC.
10% to < 25%
BRANDON DOMINIC GRIMMDirect owner · Schedule AInterest in GILBERT & COOK, INC.
10% to < 25%
LL COOK REVOCABLE TRUSTDirect owner · Schedule AInterest in GILBERT & COOK, INC.
10% to < 25%
CC COOK REVOCABLE TRUSTDirect owner · Schedule AInterest in GILBERT & COOK, INC.
10% to < 25%
THE FOUNDERS TRUSTDirect owner · Schedule AInterest in GILBERT & COOK, INC.
10% to < 25%
CANON TRUSTDirect owner · Schedule AInterest in GILBERT & COOK, INC.
10% to < 25%
JERIT PAUL TRIPPDirect owner · Schedule AInterest in GILBERT & COOK, INC.
5% to < 10%
LINDA LUNDSTROM COOKDirect owner · Schedule AInterest in GILBERT & COOK, INC.
< 5%
CHRISTOPHER CALVIN COOKIndirect owner · Schedule BInterest in THE FOUNDERS TRUST
75%+
LINDA LUNDSTROM COOKIndirect owner · Schedule BInterest in CANON TRUST
75%+
CHRISTOPHER CALVIN COOKIndirect owner · Schedule BInterest in CC COOK REVOCABLE TRUST
75%+
LINDA LUNDSTROM COOKIndirect owner · Schedule BInterest in LL COOK REVOCABLE TRUST
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 Gilbert & Cook, Inc...

Reported ownership and control details

Form ADV · Filing date 2026-06-04 · Schedules A and B

14 entries
#Owner / person & roleInterest in entityReported interestControl personTitle / status acquiredSource
1LINDA LUNDSTROM COOKCHIEF EXECUTIVE OFFICER/MANAGING MEMBERIndividualGILBERT & COOK, INC.Less than 5%Code NAYesCHIEF EXECUTIVE OFFICER/MANAGING MEMBER04/2016Schedule APDF page 19
2CHRISTOPHER CALVIN COOKTREASURERIndividualGILBERT & COOK, INC.Less than 5%Code NAYesTREASURER04/2016Schedule APDF page 19
3MEGAN LEIGH ROSENSTIELSHAREHOLDERIndividualGILBERT & COOK, INC.10% to less than 25%Code BNoSHAREHOLDER07/2018Schedule APDF page 19
4BRANDON DOMINIC GRIMMSHAREHOLDERIndividualGILBERT & COOK, INC.10% to less than 25%Code BNoSHAREHOLDER07/2018Schedule APDF page 19
5JERIT PAUL TRIPPSHAREHOLDERIndividualGILBERT & COOK, INC.5% to less than 10%Code ANoSHAREHOLDER07/2018Schedule APDF page 19
6ANDY JOHN ARMSTRONGCHIEF COMPLIANCE OFFICERIndividualGILBERT & COOK, INC.Less than 5%Code NANoCHIEF COMPLIANCE OFFICER11/2023Schedule APDF page 19
7LL COOK REVOCABLE TRUSTSHAREHOLDERDomestic entityGILBERT & COOK, INC.10% to less than 25%Code BYesSHAREHOLDER05/2025Schedule APDF page 19
8CC COOK REVOCABLE TRUSTSHAREHOLDERDomestic entityGILBERT & COOK, INC.10% to less than 25%Code BYesSHAREHOLDER05/2025Schedule APDF page 19
9THE FOUNDERS TRUSTSHAREHOLDERDomestic entityGILBERT & COOK, INC.10% to less than 25%Code BNoSHAREHOLDER09/2025Schedule APDF page 19
10CANON TRUSTSHAREHOLDERDomestic entityGILBERT & COOK, INC.10% to less than 25%Code BNoSHAREHOLDER05/2025Schedule APDF page 19
11CHRISTOPHER CALVIN COOKTRUSTEEIndividualTHE FOUNDERS TRUST75% or moreCode EYesTRUSTEE09/2025Schedule BPDF page 20
12LINDA LUNDSTROM COOKTRUSTEEIndividualCANON TRUST75% or moreCode EYesTRUSTEE05/2025Schedule BPDF page 20
13CHRISTOPHER CALVIN COOKTRUSTEEIndividualCC COOK REVOCABLE TRUST75% or moreCode EYesTRUSTEE05/2025Schedule BPDF page 20
14LINDA LUNDSTROM COOKTRUSTEEIndividualLL COOK REVOCABLE TRUST75% or moreCode EYesTRUSTEE05/2025Schedule BPDF page 20

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 6/4/2026 12:57:49 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.