# Iridian Asset Management LLC

> Iridian Asset Management LLC is an SEC-registered investment advisory firm in Westport, CT, registered since 1995, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated August 12, 2026.

- CRD: 104550
- Filed as: IRIDIAN ASSET MANAGEMENT LLC
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Westport, CT
- Filing period: October 2026
- Form ADV filing dated: August 12, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/104550
- AdvisorCensus page: https://advisorcensus.com/firm/iridian-asset-management-llc-westport-ct-104550

## Quick answers

**How is Iridian Asset Management LLC compensated?**
On its Form ADV (Item 5.E, October 2026), Iridian Asset Management LLC reports these compensation arrangements: a percentage of assets under its management; performance-based fees.

**Where is Iridian Asset Management LLC located?**
Iridian Asset Management LLC's principal office is in Westport, CT, according to its Form ADV.

**Is Iridian Asset Management LLC registered with the SEC or a state?**
Iridian Asset Management LLC is an SEC-registered investment advisory firm, registered since 1995. Status as filed: Approved. CRD 104550.

**How much does Iridian Asset Management LLC manage?**
Iridian Asset Management LLC reports $280,161,820 in regulatory assets under management in its Form ADV filing dated August 12, 2026 (100% discretionary).

**How have Iridian Asset Management LLC's assets and staff changed since 2021?**
In the Form ADV data for Iridian Asset Management LLC: Regulatory assets under management: $5,633,603,201 in the October 2021 data and $280,161,820 in the October 2026 data, down 95%. Total employees: 41 in October 2021 and 5 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Iridian Asset Management LLC serve?**
By number of clients on Form ADV Item 5.D: high net worth individuals (7); pooled investment vehicles (other than investment companies and business development companies) (4); other (2).

**Which custodians does Iridian Asset Management LLC use?**
Iridian Asset Management LLC's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists BNY Mellon Private Wealth, CIBC Private Wealth and Northern Trust Securities, Inc. as custodians holding 10% or more of its separately managed account assets.

**Does Iridian Asset Management LLC report any disciplinary disclosures?**
Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/104550

**What changed in Iridian Asset Management LLC's recent Form ADV filings?**
In the April 2026 filing data: Employees performing advisory functions went from 5 to 3. Regulatory assets under management went from $366,873,060 to $280,161,820 (-24%).

## From the Form ADV filing

### Compensation (Item 5.E)
- A percentage of assets under your management
- Performance-based fees

### Custodians (Schedule D, Section 5.K(3))
- BNY Mellon Private Wealth
- CIBC Private Wealth
- Northern Trust Securities, Inc.

Custodians holding 10% or more of the firm's separately managed account assets, as filed on Form ADV (Schedule D, Section 5.K(3)). A custodian holds client assets; it does not endorse or supervise the firm. AdvisorCensus has no relationship with any custodian.

### Regulatory assets under management (Item 5.F)
- Total: $280,161,820
- Discretionary: $280,161,820
- Non-discretionary: $0

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| High net worth individuals | 7 | $82,753,905 |
| Pooled investment vehicles (other than investment companies and business development companies) | 4 | $164,504,183 |
| Corporations or other businesses not listed above | 1 | $24,749,122 |
| Other | 2 | $8,154,610 |

### Advisory services (Item 5.G)
- Portfolio management for individuals and/or small businesses
- Portfolio management for pooled investment vehicles (other than investment companies)
- Portfolio management for businesses (other than small businesses) or institutional clients

### Firm details
- Registered since: 1995 (30 years)
- Employees: 5 total, 3 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: CT, MA, MI, NY, TX
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Websites listed on Form ADV (Item 1.I)
- iridian.com
- LinkedIn @iridian-asset-management-llc

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $5,633,603,201 | 41 | March 29, 2021 |
| October 2022 | $1,698,287,827 | 20 | August 15, 2022 |
| October 2023 | $895,701,169 | 11 | March 15, 2023 |
| October 2024 | $372,306,405 | 11 | March 20, 2024 |
| October 2025 | $366,873,060 | 9 | July 2, 2025 |
| October 2026 | $280,161,820 | 5 | August 12, 2026 |

Regulatory assets under management: $5,633,603,201 in the October 2021 data and $280,161,820 in the October 2026 data, down 95%.
Total employees: 41 in October 2021 and 5 in October 2026.

## Changes in the filing (last 12 months)

### April 2026
- Employees performing advisory functions went from 5 to 3.
- Regulatory assets under management went from $366,873,060 to $280,161,820 (-24%).

### January 2026
- No longer registered or notice-filed in WI.

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Iridian Asset Management LLC (CRD 104550): Form ADV filing data as of October 2026.