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CORNERSTONE INVESTMENT ADVISORS, LLC
CRD 116447File 801-63198
APPROVED
Retail clients
Custody
Filing as of Mar 24, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$180.8M
Bottom 25% of cohort (national)
Discretionary AUM
$141.1M
Non-discretionary $39.7M
Clients
117
260 accounts
Employees
2
Below cohort median in CO
Identity & registration
ADV Item 1- Organization form
- Limited Liability Company
- Firm type
- Registered
- SEC region
- DRO
- Registration date
- Jun 3, 2004
- Principal office
- 1790 38TH STREET, SUITE 207, BOULDER, CO, 80301
- Phone
- 303-545-5400
- Website
- HTTP://WWW.CSTONEINVEST.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $180.8M
- Discretionary AUM
- $141.1M
- Non-discretionary AUM
- $39.7M
- Discretionary accounts
- 185
- Non-discretionary accounts
- 75
- Total accounts
- 260
- AUM per client
- $1.5M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Other | Fewer than 5 | $374K |
| Charitable organizations | Fewer than 5 | $1.0M |
| High net worth individuals | 58 | $144.1M |
| Individuals (other than high net worth individuals) | 57 | $25.0M |
Compensation & activities
ADV Items 5E, 5GCompensation
- Other
- Fixed fees
- Hourly charges
- Other (described) — RETAINER
- A percentage of assets under your management
Advisory activities
- Financial planning services
- Selection of other advisers
- Portfolio management for other
- Portfolio management for businesses
- Portfolio management for individuals and/or small businesses
Custody
ADV Item 9- Firm Custody Cash
- Yes
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- Yes
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- No
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Aug 17, 2026 | Clients | 122 | 117 | decreased by5 |
| Apr 1, 2026 | Clients | 121 | 122 | increased by1 |
| Apr 1, 2026 | AUM | $152,838,487 | $180,835,242 | increased by$27,996,755 |
| Apr 1, 2026 | Accounts | 250 | 260 | increased by10 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 133 | 121 | decreased by12 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $139,695,463 | $152,838,487 | increased by$13,143,024 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 259 | 250 | decreased by9 |
| Apr 1, 2022 | Employees | 4 | 2 | decreased by2 |
| Apr 1, 2022 | Clients | 184 | 133 | decreased by51 |
| Apr 1, 2022 | AUM | $163,662,931 | $139,695,463 | decreased by$23,967,468 |
| Apr 1, 2022 | Accounts | 408 | 259 | decreased by149 |
| Apr 1, 2021 | Registration | — | APPROVED |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “CORNERSTONE INVESTMENT” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“CORNERSTONE INVESTMENT” may also match similarly-named firms). Confirm identity against each filing.
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.