Gilbert & Cook provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, pension consulting, selecting other managers, business succession planning, divorce planning, education planning, estate planning, family office services, insurance, and tax planning. Financial planning was provided to 1,000 clients last fiscal year.
Gilbert & Cook reports 901 clients. They include 458 individual clients, 421 high-net-worth individuals and 13 charitable organizations. Of its assets, 98.5% ($1.67B across 3,307 accounts) are managed with discretion; $25.4M across 485 accounts are not. A wrap fee program the firm both sponsors and manages holds $1.49B. It advised 10 clients without assets under management last fiscal year.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 51% | 8% |
| High-net-worth individuals | 47% | 86% |
| Charitable organizations | 1% | 4% |
| Corporations and other businesses | <1% | 2% |
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 458 | $136M | 8.0% | $296K |
| High-net-worth individuals | 421 | $1.46B | 85.9% | $3.46M |
| Charitable organizations | 13 | $65.5M | 3.9% | $5.04M |
| Corporations and other businesses | 9 | $38.7M | 2.3% | $4.31M |
| Total | 901 | $1.7B | 100% | $1.88M |
- Clients
- 458
- Regulatory AUM
- $136M
- AUM share
- 8.0%
- Avg. per client
- $296K
- Clients
- 421
- Regulatory AUM
- $1.46B
- AUM share
- 85.9%
- Avg. per client
- $3.46M
- Clients
- 13
- Regulatory AUM
- $65.5M
- AUM share
- 3.9%
- Avg. per client
- $5.04M
- Clients
- 9
- Regulatory AUM
- $38.7M
- AUM share
- 2.3%
- Avg. per client
- $4.31M
Total
- Clients
- 901
- Regulatory AUM
- $1.7B
- AUM share
- 100%
- Avg. per client
- $1.88M
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 10
- Private funds advised
- 0
- Financial planning clients last fiscal year
- 1000
Gilbert & Cook charges up to 1.70% a year for its Precision Wrap Platform. The fee is billed in advance, is negotiable and requires an account of at least $1,000,000. The brochure also prices 2 other services, listed under fee details.
Fee details and sources
Other fees
- Financial Planning & Consulting
- Charged hourly, up to a maximum of $350 an hour, or as a flat fee from $150 to $65,000, paid in full at signing.
- Retirement Plan Consulting
- Billed as a percentage of managed plan assets that will not exceed 1.25%, or as set out in the signed consulting agreement.
Linda Cook is CEO; the leadership team includes Chief Compliance Officer Andy Armstrong. It has 32 employees, 17 of them in advisory roles.
Leadership
- Linda CookChief Executive Officer/Managing Member
Andy ArmstrongChief Compliance Officer- Christopher CookTreasurer
- Megan RosenstielShareholder
- Brandon GrimmShareholder
- Jerit TrippShareholder
Investment adviser representatives
18 representatives listed in the SEC register as of 9 October 2026.
- Christopher Calvin Cook
- Linda Lundstrom Cook
- Brandon Dominic Grimm
- Katherine Ann Gudgel
- Todd Charles Henningsen
- Blake Holtmeier
- George Ryan Lamoureux
- Thomas Martin McCaffrey
- Michelle Louise Miller
- Reece Oleson
- Zachary Deane Ripka
- Megan Leigh Rosenstiel
- Alan Duane Ryerson
- Tiffany Scharfenkamp
- Jarrett Sheets
- Jessica Swaim
- Jerit Paul Tripp
- Hayden Douglas Zeidler
Staff
- 32 employees
- 17 in advisory functions
- 17 state-registered reps
- 10 insurance agents
- Owns 10% to 25% of Gilbert & Cook, Inc.
Megan Rosenstiel
since July 2018
- Owns 10% to 25% of Gilbert & Cook, Inc.
Brandon Grimm
since July 2018
- Owns 10% to 25% of Gilbert & Cook, Inc.
LL Cook Revocable Trust
Control person · since May 2025
- Owns 10% to 25% of Gilbert & Cook, Inc.
CC Cook Revocable Trust
Control person · since May 2025
- Owns 10% to 25% of Gilbert & Cook, Inc.
The Founders Trust
since September 2025
- Owns 75% or more of The Founders Trust
Christopher Cook
Control person · since September 2025
- Owns 10% to 25% of Gilbert & Cook, Inc.
Canon Trust
since May 2025
- Owns 75% or more of Canon Trust
Linda Cook
Control person · since May 2025
- Owns 5% to 10% of Gilbert & Cook, Inc.
Jerit Tripp
since July 2018
Gilbert & Cook’s regulatory assets grew 2.1× from $793M (March 2021) to $1.7B (June 2026); clients rose from 575 to 901 and employees from 22 to 32.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | Employees | Offices |
|---|---|---|---|---|
| June 2026 | $1.7B | 901 | 32 | 1 |
| March 2025 | $1.36B | 840 | 33 | 1 |
| March 2024 | $1.2B | 828 | 32 | 1 |
| June 2023 | $974M | 772 | 32 | 1 |
| May 2022 | $1.01B | 670 | 26 | 1 |
| March 2021 | $793M | 575 | 22 | 1 |
Besides its headquarters, Gilbert & Cook has 0 offices, with 1 listed address in Iowa.
Iowa · 1 listed address
- 5058 Grand Ridge Drive, West Des MoinesHQ
Contact and registration details
- Legal name
- Gilbert & Cook, Inc.
- Headquarters
- 5058 Grand Ridge Drive, West Des Moines, IA 50265
- Website
- gilbertcook.com
- Phone
- 515-270-6444
- @gilbert-&-cook-inc
- SEC file
- 801-107546
- Founded
- 1994
- Structure
- Iowa corporation
- Fiscal year end
- December
Gilbert & Cook uses Charles Schwab ($1.26B) as custodian for its separately managed accounts. Gilbert & Cook has custody of $98.2M in client assets for 156 clients.
- Charles SchwabCharles Schwab & Co., Inc. · San Francisco, CA · $1.26B100%
At year end, Gilbert & Cook’s separately managed accounts were mostly in funds (75%) and stocks (12%). Its reported 13F holdings for the quarter ended 30 June 2026 total $869M across 229 positions; the largest are iShares TR (23.8%), iShares TR (10.8%) and Vanguard Tax-managed Fds (10.2%).
What the accounts hold
- Stocks12%
- Funds75%
- Registered funds73%
- Pooled vehicles2%
- Bonds7%
- U.S. government and agency bonds4%
- State and local bonds3%
- Cash5%
- Other1%
- Variable annuity1%
Reported 13F holdings
- $869M
- Reported 13F value
- 229
- Positions
- 73.1%
- In the 10 largest
- +12.2%
- Value vs. prior quarter
- iShares TR · Core S&P500 ETF23.8%
- iShares TR · Rus Top 200 ETF10.8%
- Vanguard Tax-managed Fds · Van FTSE Dev Mkt10.2%
- John Hancock Exchange Traded · Multifactor MI8.7%
- Vanguard BD Index Fds · Total Bnd Mrkt7.2%
- iShares TR · Rus Mid Cap ETF4.3%
- John Hancock Exchange Traded · Multifactr Sml4.0%
- Nvidia Corporation1.5%
- Alphabet Inc. · Cap Stk CL C1.3%
- iShares TR · Russell 2000 ETF1.2%
Together, the ten largest are 73.1% of reported value.
How many clients does Gilbert & Cook have?
Gilbert & Cook has 901 clients and manages $1.7 billion for them, as of June 2026. They include 458 individual clients, 421 high-net-worth individuals and 13 charitable organizations.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 4 June 2026
What services does Gilbert & Cook offer?
Gilbert & Cook provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, pension consulting, selecting other managers, business succession planning, divorce planning, education planning, estate planning, family office services, insurance, and tax planning.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file; Part 2A brochure, Item 4
How much does Gilbert & Cook charge?
Gilbert & Cook charges up to 1.70% a year for its Precision Wrap Platform. The fee is billed in advance, is negotiable and requires an account of at least $1,000,000.
Which custodians does Gilbert & Cook use?
Gilbert & Cook’s separately managed account assets are held at Charles Schwab & Co., Inc. (San Francisco, CA), with $1.26B. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 4 June 2026
How many financial advisors does Gilbert & Cook have?
Gilbert & Cook has 17 investment adviser representatives registered with state securities authorities, out of 32 employees, and 17 perform investment advisory functions. 0 employees are registered representatives of a broker-dealer and 10 employees are licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does Gilbert & Cook invest in?
At the end of its last fiscal year, Gilbert & Cook’s separately managed accounts held 73% registered funds (mutual funds, ETFs, BDCs), 12% exchange-traded equities, 5% cash and equivalents, 4% U.S. government and agency bonds, 3% state and local bonds, 2% pooled vehicles (private funds and similar) and 1% other. The 1% other category is described as: Variable Annuity.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Does Gilbert & Cook have a minimum investment?
Yes, Gilbert & Cook’s minimum account size for its Precision Wrap Platform is $1M.
Who owns Gilbert & Cook?
Gilbert & Cook is owned through trusts by Christopher Cook and Linda Cook. Its direct owners are Megan Rosenstiel, Brandon Grimm, Jerit Tripp, LL Cook Revocable Trust, CC Cook Revocable Trust, the Founders Trust and Canon Trust, each holding 25% or less.
Source: Form ADV Part 1A, Schedules A and B, filed 4 June 2026
How does Gilbert & Cook get paid?
Gilbert & Cook is paid through a percentage of assets under management, hourly charges and fixed fees. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
Is Gilbert & Cook registered with the SEC?
Yes, Gilbert & Cook has been registered with the SEC as an investment adviser since 14 April 2016. Its CRD number is 283112 and its SEC file number is 801-107546.
Source: Form ADV Part 1A, Item 1, filed 4 June 2026; IAPD firm record
How do I contact Gilbert & Cook?
Gilbert & Cook’s main office is at 5058 Grand Ridge Drive, West Des Moines, IA 50265. Its phone number is 515-270-6444. Its website is gilbertcook.com.