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First Manhattan Co. LLC

New York, NYSEC-registered investment adviserCRD 325281

Filed as FIRST MANHATTAN CO. LLC

First Manhattan Co. LLC is an SEC-registered investment advisory firm in New York, NY, registered since 1977, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated August 13, 2026.

49 years
registered since 1977
$38,086,101,541
assets under management
2 arrangements
Percentage of assets, Performance-based
None
disclosure items (Item 11)

Quick answers

From the filing

How is First Manhattan Co. LLC compensated?

On its Form ADV (Item 5.E, October 2026), First Manhattan Co. LLC reports these compensation arrangements: a percentage of assets under its management; performance-based fees.

Where is First Manhattan Co. LLC located?

First Manhattan Co. LLC's principal office is in New York, NY, according to its Form ADV; the September 2026 filing also lists 4 other offices (Schedule D, Section 1.F).

Is First Manhattan Co. LLC registered with the SEC or a state?

First Manhattan Co. LLC is an SEC-registered investment advisory firm, registered since 1977. Status as filed: Approved. CRD 325281.

How much does First Manhattan Co. LLC manage?

First Manhattan Co. LLC reports $38,086,101,541 in regulatory assets under management in its Form ADV filing dated August 13, 2026 (94% discretionary).

How have First Manhattan Co. LLC's assets and staff changed since 2023?

In the Form ADV data for First Manhattan Co. LLC: Regulatory assets under management: $23,591,694,768 in the October 2023 data and $38,086,101,541 in the October 2026 data, up 61%. Total employees: 130 in October 2023 and 147 in October 2026. Assets under management move with markets as well as with clients coming and going.

What types of clients does First Manhattan Co. LLC serve?

By number of clients on Form ADV Item 5.D: high net worth individuals (3,828); individuals (other than high net worth individuals) (2,252); charitable organizations (108).

Which custodians does First Manhattan Co. LLC use?

First Manhattan Co. LLC's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Pershing LLC as a custodian holding 10% or more of its separately managed account assets.

Does First Manhattan Co. 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/325281

What changed in First Manhattan Co. LLC's recent Form ADV filings?

In the April 2026 filing data: Employees performing advisory functions went from 47 to 51. Regulatory assets under management went from $34,439,571,092 to $38,086,101,541 (+11%). Added an office in Jackson, WY. Added an office in Omaha, NE. Added an office in San Francisco, CA.

From the Form ADV filing

Every figure below is as the firm filed it with regulators, as of October 2026.

How the firm is compensated

Item 5.E
  • A percentage of assets under your management
  • Performance-based fees

Item 5.E lists how the firm is compensated for its advice; Items 5.B, 6.A, and 7.A show whether its people or related companies can also earn commissions. Percentage of assets, fixed, hourly, subscription, and performance-based fees come from clients (a performance-based fee depends on investment results); commissions come with a sale or a trade, often from the company behind the product. How fees, commissions, and other arrangements differ

Fees and minimums

Form ADV Part 2A

The brochure lists different fees for different services or strategies. See the firm's brochure (dated August 13, 2026) for its fees and any account minimum, on the SEC's IAPD site.

Regulatory assets under management

Item 5.F
$38,086,101,541

$38,086,101,541 as of October 2026, filing dated August 13, 2026.

Discretionary: $35,663,135,874.Non-discretionary: $2,422,965,667.

A measure of scale, not skill or returns. Discretionary means the firm decides trades; non-discretionary means clients approve each one. What assets under management means

Who the firm serves

Item 5.D
Individuals (other than high net worth individuals)
Clients 2,252 Assets $629,993,864 (2%)
High net worth individuals
Clients 3,828 Assets $33,283,079,512 (87%)
Investment companies
Clients 2 Assets $172,805,171 (0%)
Pooled investment vehicles (other than investment companies and business development companies)
Clients 9 Assets $919,226,349 (2%)
Pension and profit sharing plans (but not the plan participants or government pension plans)
Clients 95 Assets $1,510,159,023 (4%)
Charitable organizations
Clients 108 Assets $1,570,837,622 (4%)

A firm with no individual clients is an institutional manager even if it manages billions; the mix tells you whom the practice is built around.

Advisory services

Item 5.G
  • Financial planning services
  • Portfolio management for individuals and/or small businesses
  • Portfolio management for investment companies (and business development companies)
  • Portfolio management for pooled investment vehicles (other than investment companies)
  • Portfolio management for businesses (other than small businesses) or institutional clients
  • Pension consulting services

Registration and firm details

Items 1, 2, 5
Registration
SEC-registered investment adviser. Status as filed: Approved.
Registered since
1977 (49 years)
Employees
Total: 147. Performing investment advisory functions: 51.
Wrap fee program participation
Yes.
Custodians (Schedule D, Section 5.K(3))

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.

Other offices (Schedule D, Section 1.F)
4 other offices, as of the September 2026 filing
Greenwich, CTJackson, WYOmaha, NESan Francisco, CA
States registered or notice-filed
51 states or jurisdictions
AKALARAZCACOCTDCDEFLGAHIIAIDILINKSKYLAMAMDMEMIMNMOMSMTNCNDNENHNJNMNVNYOHOKORPARISCSDTNTXUTVAVTWAWIWVWY

SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration

Disclosures

Item 11

None Reports no disclosure items on Form ADV Item 11. View on IAPD.

Item 11 asks about criminal, regulatory, and civil events involving the firm and its advisory personnel. The detail of each yes answer is on the IAPD record. Reading a firm's disclosures

Assets and staff over time

Items 5.A, 5.F
$23.6B 2023 $31.8B 2024 $34.4B 2025 $38.1B 2026
Data periodAssets under managementEmployeesFiling dated
October 2026$38,086,101,541147August 13, 2026
October 2025$34,439,571,092132April 29, 2025
October 2024$31,826,559,572133June 14, 2024
October 2023$23,591,694,768130September 7, 2023

Regulatory assets under management: $23,591,694,768 in the October 2023 data and $38,086,101,541 in the October 2026 data, up 61%.

Total employees: 130 in October 2023 and 147 in October 2026.

As filed in each year's data for the same month. Assets under management move with markets as well as with clients coming and going; they measure scale, not skill or returns. Most firms update these figures once a year.

Changes in the filing

Last 12 months
  1. April 2026
    • Employees performing advisory functions went from 47 to 51.
    • Regulatory assets under management went from $34,439,571,092 to $38,086,101,541 (+11%).
    • Added an office in Jackson, WY.
    • Added an office in Omaha, NE.
    • Added an office in San Francisco, CA.

Compared month to month from the SEC's monthly adviser data and the state compilation feed. Owners and control persons are summarized, never named.

Websites listed on Form ADV

Item 1.I
firstmanhattan.comfmexcelsioretfs.comgreenleafstrategies.com

Source: Form ADV, as of October 2026. Values appear as filed; a value the firm did not report is shown as "Not reported."

Cite this page

AdvisorCensus. First Manhattan Co. LLC (CRD 325281): Form ADV filing data as of October 2026.
https://advisorcensus.com/firm/first-manhattan-co-llc-new-york-ny-325281