← Directory
ARDIAN
Legal name: ARDIAN US LLC
CRD 121326File 801-63098
APPROVED
Custody
Filing as of Mar 30, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$2.77B
Top 25% of cohort (national)
Discretionary AUM
$2.77B
Clients
10
10 accounts
Employees
128
Above cohort median in NY
Identity & registration
ADV Item 1- Organization form
- Limited Liability Company
- Firm type
- Registered
- SEC region
- NYRO
- Registration date
- Apr 28, 2004
- Principal office
- 1370 AVENUE OF THE AMERICAS, 21ST FLOOR, NEW YORK, NY, 10019-4602
- Phone
- 212-506-5610
- Website
- HTTPS://WWW.ARDIAN.COM/
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $2.77B
- Discretionary AUM
- $2.77B
- Non-discretionary AUM
- $0
- Discretionary accounts
- 10
- Non-discretionary accounts
- 0
- Total accounts
- 10
- AUM per client
- $276.7M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Investment companies | 1 | $976.3M |
| Pooled investment vehicles | 9 | $1.79B |
Compensation & activities
ADV Items 5E, 5GCompensation
- Performance-based fees
- A percentage of assets under your management
Advisory activities
- Portfolio management for investment companies
- Portfolio management for pooled investment vehicles
Custody
ADV Item 9- Firm Custody Cash
- Yes
- Firm Custody Assets
- Yes
- Firm Custody Clients
- Yes
- Firm Custody Securities
- Yes
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- Yes
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Apr 1, 2026 | Employees | 123 | 128 | increased by5 |
| Apr 1, 2026 | Clients | 9 | 10 | increased by1 |
| Apr 1, 2026 | AUM | $1,800,052,181 | $2,766,909,220 | increased by$966,857,039 |
| Apr 1, 2026 | Accounts | 9 | 10 | increased by1 |
| May 1, 2025 vs Oct 1, 2022 | Employees | 89 | 123 | increased by34 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $1,518,036,970 | $1,800,052,181 | increased by$282,015,211 |
| Apr 1, 2022 | Employees | 74 | 89 | increased by15 |
| Apr 1, 2022 | Clients | 8 | 9 | increased by1 |
| Apr 1, 2022 | AUM | $1,001,915,680 | $1,518,036,970 | increased by$516,121,290 |
| Apr 1, 2022 | Accounts | 8 | 9 | increased by1 |
| 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 “ARDIAN” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“ARDIAN” 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.