# Ellington Management Group, L.L.C.

> Ellington Management Group, L.L.C. is an SEC-registered investment advisory firm in Old Greenwich, CT, registered since 1999, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated August 14, 2026.

- CRD: 112493
- Filed as: ELLINGTON MANAGEMENT GROUP, L.L.C.
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Old Greenwich, CT
- Filing period: October 2026
- Form ADV filing dated: August 14, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/112493
- AdvisorCensus page: https://advisorcensus.com/firm/ellington-management-group-l-l-c-old-greenwich-ct-112493

## Quick answers

**How is Ellington Management Group, L.L.C. compensated?**
On its Form ADV (Item 5.E, October 2026), Ellington Management Group, L.L.C. reports these compensation arrangements: a percentage of assets under its management; performance-based fees. The amounts are in Item 5 of its Form ADV Part 2A brochure.

**Where is Ellington Management Group, L.L.C. located?**
Ellington Management Group, L.L.C.'s principal office is in Old Greenwich, CT, according to its Form ADV; the September 2026 filing also lists 2 other offices (Schedule D, Section 1.F).

**Is Ellington Management Group, L.L.C. registered with the SEC or a state?**
Ellington Management Group, L.L.C. is an SEC-registered investment advisory firm, registered since 1999. Status as filed: Approved. CRD 112493.

**How much does Ellington Management Group, L.L.C. manage?**
Ellington Management Group, L.L.C. reports $20,757,004,631 in regulatory assets under management in its Form ADV filing dated August 14, 2026 (87% discretionary).

**How have Ellington Management Group, L.L.C.'s assets and staff changed since 2021?**
In the Form ADV data for Ellington Management Group, L.L.C.: Regulatory assets under management: $15,387,579,581 in the October 2021 data and $20,757,004,631 in the October 2026 data, up 35%. Total employees: 142 in October 2021 and 164 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Ellington Management Group, L.L.C. serve?**
By number of clients on Form ADV Item 5.D: pooled investment vehicles (other than investment companies and business development companies) (25); other investment advisers (6); state or municipal government entities (including government pension plans) (1).

**Which custodians does Ellington Management Group, L.L.C. use?**
Ellington Management Group, L.L.C.'s most recent Form ADV filing (Schedule D, Section 5.K(3)) lists The Bank of New York Mellon as a custodian holding 10% or more of its separately managed account assets.

**Does Ellington Management Group, L.L.C. 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/112493

**What changed in Ellington Management Group, L.L.C.'s recent Form ADV filings?**
In the April 2026 filing data: Regulatory assets under management went from $12,283,274,750 to $20,757,004,631 (+69%). Updated its list of owners and control persons (Schedule A).

## 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))
- The Bank of New York Mellon

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: $20,757,004,631
- Discretionary: $18,075,481,234
- Non-discretionary: $2,681,523,397

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Pooled investment vehicles (other than investment companies and business development companies) | 25 | $10,900,330,676 |
| State or municipal government entities (including government pension plans) | 1 | $786,851,069 |
| Other investment advisers | 6 | $2,681,523,397 |
| Sovereign wealth funds and foreign official institutions | 1 | $6,388,299,489 |

### Advisory services (Item 5.G)
- 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: 1999 (27 years)
- Employees: 164 total, 68 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: CT, NY
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Other offices (Schedule D, Section 1.F), as of the September 2026 filing
- London
- New York, NY

### Websites listed on Form ADV (Item 1.I)
- ellington.com
- LinkedIn @ellington-management-group

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $15,387,579,581 | 142 | May 26, 2021 |
| October 2022 | $13,258,868,505 | 173 | May 20, 2022 |
| October 2023 | $10,894,131,111 | 162 | July 20, 2023 |
| October 2024 | $10,127,384,993 | 162 | August 27, 2024 |
| October 2025 | $12,283,274,750 | 160 | March 31, 2025 |
| October 2026 | $20,757,004,631 | 164 | August 14, 2026 |

Regulatory assets under management: $15,387,579,581 in the October 2021 data and $20,757,004,631 in the October 2026 data, up 35%.
Total employees: 142 in October 2021 and 164 in October 2026.

## Changes in the filing (last 12 months)

### April 2026
- Regulatory assets under management went from $12,283,274,750 to $20,757,004,631 (+69%).
- Updated its list of owners and control persons (Schedule A).

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Ellington Management Group, L.L.C. (CRD 112493): Form ADV filing data as of October 2026.