Main Street Investment Advisors LLC

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Main Street Investment Advisors LLC
CRD #146036
SEC #801-113819
CIK #
AUM 250.3 M (2026-01-20)
Employees 3 (100% Investors, 0% Brokers)
Fees
Minimum
Phone847-480-7055
Address707 Skokie Blvd
Northbrook, IL 60062
Source [IAPD] [Website]
Total AUM ($M)
3002401801206002009201520212027
Fees and Compensation — Form ADV Part 2A (1/20/2026) [Brochure]
Item 5.       Fees and Compensation
MSIA is compensated on Assets Under Management (AUM). Fees are charged on the
total assets under management and the rate does not change regardless of asset size.
These fees are charged at the beginning of each quarter (period forward) and are
calculated at a range between 0.125% or 12.5 basis points and .25% or 25 basis points,
an annualized rate of between 0.50% or 50 basis points and 1.00% or 100 basis points.
(This results in a charge of 0.125% and .25% at the beginning of each quarter). Fees will
be prorated for additions (i.e. contributions) and withdrawals that do not occur on the first
day of the quarter. Municipal Bond Accounts (i.e. accounts holding only municipal bonds)
will be separately negotiated. Fee rates are set at the discretion of MSIA and as negotiated
at the date the account is established. The amount of the fee on each account will be
reflected in the client investment management agreement.

Typically, these fees are deducted directly from the client’s account through the client’s
custodian (generally Fidelity Investment Services). Clients will receive statements from
their custodian, at least quarterly, indicating all amounts disbursed from the account
including the amount of management fees paid directly to MSIA.

In certain circumstances, we may enter into customized fee arrangements that differ from
our standard schedule. For example, we currently charge one client a flat annual fee
pursuant to a one-off agreement tailored to that client’s specific needs. Such
arrangements are negotiated individually and may vary based on the scope and
complexity of services provided.

As described in Item 4, MSIA may utilize external investment managers that represent
products created by other Broker Dealers or Fund Managers (SMAs or separately
managed accounts) for those areas of investment where MSIA may be lacking in
expertise. MSIA’s fees are separate, apart, and in addition to those charged by any
external investment managers used.

MSIA does not receive commissions, sales charges, or 12(b)-1 fees from mutual funds in
connection with client’s securities transactions. However, clients will incur applicable
charges imposed by broker-dealers and custodians, which may include brokerage
commissions, transaction fees, custodial fees, charges imposed directly by a mutual fund
or ETF in the account, which are disclosed in the fund’s prospectus (e.g., fund
management fees and other fund expenses), deferred sales charges, odd-lot differentials,
transfer taxes, wire transfer and electronic fund fees, and other fees and taxes on
brokerage accounts and securities transactions. Such charges, fees and commissions
are exclusive of and in addition to MSIA’s advisory fee. For more information regarding
MSIA’s brokerage practices see Item 12.

In the event that a client terminates the relationship with MSIA, his (her) advisory fee will
be refunded on a pro-rata basis. We do not hold pre-paid fees other than period forward
payments on a quarterly basis and all fees reflect only the period of time the firm actively
manages the client’s assets.

Should a client of MSIA wish to purchase a security that has been recommended to them
by MSIA with another entity, brokerage or advisory firm, MSIA will make best effort to
facilitate such transaction.
Account Minimums and Types of Clients — Form ADV Part 2A (1/20/2026) [Brochure]
Item 7.       Types of Clients

The client base at Main Street Investment Advisors, LLC is comprised mainly of high-net-
worth individuals and private foundations. We have a minimum asset amount for opening an
account of $250,000. In the past we opened accounts for less than the minimum if such
accounts have the potential to grow quickly to the minimum level when aggregated,
exceed the minimum asset requirement or there is a relationship to a current client that
matches or exceeds the minimum. We, through our service providers at Fidelity
Investments and other custodians, offer and maintain a variety of account types, including
individual (single and joint) accounts, trusts, IRAs (Traditional, Rollover, Roth, SEP, and
SIMPLE), individual 401(k) plans, and 529 college savings plans.
AUM Breakdown Accounts AUM ($M)
By Client Type
(a) Individuals (other than high net worth individuals) 14 3.3
(b) Individuals (high net worth individuals) 128 243.3
(c) Banking or thrift institutions 0 0.0
(d) Investment companies 0 0.0
(e) Business development companies 0 0.0
(f) Pooled investment vehicles 0 0.0
(g) Pension and profit sharing plans 0 0.0
(h) Charitable organizations 2 3.7
(i) State or municipal government entities 0 0.0
(j) Other investment advisers 0 0.0
(k) Insurance companies 0 0.0
(l) Sovereign wealth funds and foreign official institutions 0 0.0
(m) Corporations or other businesses not listed above 0 0.0
(n) Other 0 0.0
Total 144 250.3
By Discretionary
Discretionary 144 250.3
Non-Discretionary 0 0.0
Total 144 250.3
By Non-United States Persons
Non-United States Persons 0.0
United States Persons 250.3
Total 144 250.3
Firm Profile (Form ADV)
Discretionary AUM$0.1B
Clients29 (1 non-US)
ServesInstitutional, Retail
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