Private fund adviser · Greenwich, CT
Mangrove Partners
Mangrove Partners IM, LLC · SEC-registered investment adviser · CRD 162296 · SEC 801-78070
At a glance
Mangrove Partners is an SEC-registered investment adviser based in Greenwich, Connecticut, with $2.7 billion in regulatory assets under management as of its Form ADV filed March 31, 2026. Its largest client group by assets is pooled investment vehicles. By Form ADV it is a private fund adviser, ranked 1,391st of 4,686 private fund advisers and 3,013th of 17,210 SEC-registered advisers by assets.
Main office 212-897-9535mangrovepartners.comAs filed on Form ADV
- Regulatory AUM
- $2.7B
- Rank among private fund advisers
- #1,391 of 4,686
- Rank among all SEC RIAs
- #3,013 of 17,210
- Rank in Connecticut
- #128 of 507
- Clients
- 3
- Accounts
- 4
- Discretionary
- 100% of AUM
- Employees
- 19
- Advisory staff
- 10
- Offices
- 2
Owners and executives on its Form ADV
- Nathaniel H. AugustPresident
- Ward T. DietrichChief Operating Officer, Chief Compliance Officer
Custody and brokerage
Who it serves
| Client type | Clients | Regulatory AUM | Share |
|---|---|---|---|
| Pooled investment vehicles | 3 | $2.7B | 99% |
| Insurance companies | – | $29M | 1% |
Private funds
Mangrove Partners reports 1 private funds with $2.7B in gross assets: hedge funds (Form ADV Item 7.B).
Disciplinary disclosures
Mangrove Partners answers yes to 10 disclosure items in Item 11 of Form ADV (criminal, regulatory or civil matters involving the firm or its advisory affiliates). Read the details on the SEC’s adviser search ↗
Services
- Portfolio management for pooled investment vehicles
How it’s paid
- A percentage of assets under management
- Performance-based fees
Form ADV and brochures on the SEC’s adviser search ↗mangrovepartners.com ↗
AtlasMembers
The full record on Mangrove Partners
Ten years of SEC filings, its owners and contacts, and how it stacks up against its peers. Atlas members see all of it.
- Assets, accounts, clients and staff, ten years of filings
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- Growth over one, three and five years
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- Rank against 1,717 peers of its type and size
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- Owners and executives, with titles and stakes
- 2 namedLocked
- Main office, fax and compliance officer
- Locked
- Filing changes this year, with alerts
- 1Locked
Free while Atlas launches: create a free account and confirm your email. Every figure comes from SEC filings.
Background
Questions
How much does Mangrove Partners manage?
Mangrove Partners reports $2.7 billion in regulatory assets under management across 4 accounts, 100% of it on a discretionary basis, on its Form ADV filed March 31, 2026.
What kind of firm is Mangrove Partners?
Mangrove Partners is a private fund adviser by its Form ADV answers. Private funds are at least half of its business by assets.
Who are Mangrove Partners’s clients?
By assets, its largest client types are pooled investment vehicles ($2.7 billion, 3 clients); insurance companies ($29 million).
Does Mangrove Partners manage private funds?
Yes. It reports 1 private funds with $2.7 billion in gross assets, including hedge funds.
Does Mangrove Partners have any disciplinary history?
Mangrove Partners answers yes to 10 disclosure items in Item 11 of Form ADV, which covers criminal, regulatory and civil matters involving the firm or its advisory affiliates. The details are on the SEC’s adviser search.
Where these numbers come from
Every figure is Mangrove Partners’s own answer on its latest Form ADV, from the SEC’s registered-adviser list as of October 1, 2026: regulatory assets and accounts (Item 5.F), clients by type (5.D), employees (5.A and 5.B), compensation (5.E) and services (5.G). Custodians come from Schedule D 5.K(3) of its latest filing (2026-03-31), which lists those holding 10% or more of separately managed account assets and the amount at each. “Hybrid” means some employees are also registered representatives of a broker-dealer (Item 5.B(2)); affiliated broker-dealers are the related persons it lists in Item 7.A and Schedule D. Firm type comes from its own answers: broker-dealer firms are registered broker-dealers themselves (Item 6.A); private fund advisers manage mostly private funds (Item 7.B, 5.D); wealth managers manage at least half their assets for individuals (5.D). Ranks compare it by regulatory assets with every SEC-registered adviser and with firms of its type. Figures are as of the firm’s last annual update, so they can lag recent deals and market moves. Regulatory AUM counts assets the firm continuously supervises and can differ from what a firm markets.
Not an endorsement or a recommendation. Before hiring any adviser, read its Form ADV Part 2A brochure and check its record on the SEC’s adviser search. How to check a financial advisor →