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Parnassus Investments

SEC-registered adviser since 2021San Francisco, CACRD 316904

30
Clients
28
Advisory staff

From Form ADV filed 15 September 2026 · data retrieved 15 October 2026SEC record

Parnassus Investments is an investment adviser headquartered in San Francisco, California, and registered with the SEC since 2021. Its clients include investment companies, pooled investment vehicles, and pension and profit-sharing plans. High-net-worth individuals account for 1% of its regulatory assets under management.

Its services include portfolio management for investment companies, portfolio management for pooled vehicles and portfolio management for institutions. Fee arrangements include a percentage of assets under management. Gallium Acquisition LLC owns 50% to 75% of Parnassus Investments.

Clients

Parnassus Investments serves 30 clients, 9 of them pension and profit-sharing plans. The average client has about $1.37 billion with the firm, and high-net-worth clients hold 1% of its $41.1 billion in assets.

Regulatory assets by client type
  • Investment companies8 clients83%
  • Pooled investment vehicles3 clients8%
  • Pension and profit-sharing plans9 clients6%
  • OtherHigh-net-worth individuals, Charitable organizations, State or municipal government entities, Sovereign wealth funds and foreign official institutions, Corporations and other businesses3%
Show client breakdown
High-net-worth individuals
Clients
1
Regulatory AUM
$239,715,906
Share
0.6%
Avg. per client
$239.7M
Investment companies
Clients
8
Regulatory AUM
$34,127,125,627
Share
83.0%
Avg. per client
$4.27B
Pooled investment vehicles
Clients
3
Regulatory AUM
$3,379,495,939
Share
8.2%
Avg. per client
$1.13B
Pension and profit-sharing plans
Clients
9
Regulatory AUM
$2,276,840,849
Share
5.5%
Avg. per client
$253.0M
Charitable organizations
Clients
6
Regulatory AUM
$357,606,901
Share
0.9%
Avg. per client
$59.6M
State or municipal government entities
Clients
1
Regulatory AUM
$266,591,324
Share
0.6%
Avg. per client
$266.6M
Sovereign wealth funds and foreign official institutions
Clients
1
Regulatory AUM
$430,991,042
Share
1.0%
Avg. per client
$431.0M
Corporations and other businesses
Clients
1
Regulatory AUM
$16,183,933
Share
0.0%
Avg. per client
$16.2M

Total

Clients
30
Regulatory AUM
$41,094,551,521
Share
100%
Avg. per client
$1.37B

What it does

Parnassus Investments provides portfolio management for investment companies, portfolio management for pooled vehicles and portfolio management for institutions. It is paid through a percentage of assets.

Parnassus Investments advises no private funds.

100.0% of assets ($41.09B across 30 accounts) are managed with discretion. 13% of clients are outside the U.S., and 12 clients received advice without assets under management last fiscal year.

What the accounts hold

Separately managed account assets by class, year end
  • Stocks98%
  • Cash2%

Custodians

Parnassus Investments’ client accounts are held mainly at Northern Trust, with 2% of managed assets, and BNP Paribas Securities Services, with 1%. Parnassus Investments does not have custody of client assets.

Managed account assets by custodian
  • FidelityFidelity Management Trust Company · Boston, MA · $407.0M1%
  • BNP Paribas Securities ServicesBNP Paribas Securities Services · Singapore · $431.0M1%
  • Caisse Des Depots Et ConsignationsCaisse Des Depots Et Consignations · Paris · $373.5M1%
  • Northern TrustNorthern Trust Corporation · Chicago, IL · $796.7M2%
  • All other custodians$39.09B95%

Ownership and leadership

Gallium Acquisition LLC owns 50% to 75% of Parnassus Investments.

Who owns the firm
Parnassus Investments, LLC· the adviser
  • Gallium Acquisition LLC

    Control person · since October 2021

    Owns 50% to 75% of Parnassus Investments, LLC
  • Benjamin Allen

    Control person · since October 2021

    Owns 10% to 25% of Parnassus Investments, LLC
  • Todd Ahlsten

    Control person · since October 2021

    Owns 5% to 10% of Parnassus Investments, LLC

Leadership

  • Todd Ahlsten
    Executive Vice President, CIO and Member of Management Committee
  • Benjamin Allen
    President, CEO and Member of Management Committee
  • Marc Mahon
    Executive Vice President, CFO, COO and Member of Management Committee
  • John Skidmore
    Chief Compliance Officer
  • Nikhil Sinha
    Chief Marketing Officer, Member of Management Committee

Staff

  • 87 employees
  • 28 in advisory functions
  • 11 state-registered reps
  • 17 broker-dealer reps
  • 3 soliciting firms

Reported holdings

Parnassus Investments’ reported 13F holdings total $37.45B across 135 positions, and the ten largest make up 39.8% of it.

$37.45B
Reported 13F value
135
Positions
39.8%
In the 10 largest
+9.7%
Value vs. prior quarter
Ten largest positions, share of reported value
  1. Alphabet Inc. · Cap Stk CL A5.2%
  2. Applied Matls Inc.4.9%
  3. Microsoft Corp.4.7%
  4. Nvidia Corporation4.5%
  5. Amazon Com Inc.4.4%
  6. Advanced Micro Devices Inc.3.6%
  7. KLA Corp.3.5%
  8. Apple Inc.3.3%
  9. Waste Mgmt Inc. Del2.9%
  10. Deere & CO2.8%

Together, the ten largest are 39.8% of reported value.

The 50 largest positions and quarterly changesQuarter ended 30 June 2026 · filed 29 July 2026

A 13F covers only exchange-traded long positions the firm holds with discretion, so this $37.45B is not its $41.09B in regulatory assets and does not represent any individual client's portfolio.

Fees

Parnassus Investments is paid through a percentage of assets under management.

Parnassus Investments’ fee rates are not included in this profile. Find its brochure on the SEC’s site.

Offices and registrations

Besides its headquarters, Parnassus Investments has 0 offices, with 1 listed address in 1 state.

Listed office addresses by state

California · 1 listed address

  • 1 Market Street, Suite 1600, San FranciscoHQ

Registration details

Legal name
Parnassus Investments, LLC
Headquarters
1 Market Street, Suite 1600, San Francisco, CA 94105
SEC file
801-122618
Structure
Delaware LLC
Fiscal year end
December

This directory does not report disciplinary history, for any firm or individual, in either direction. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one. See this firm's record on adviserinfo.sec.gov

Common questions

How many clients does Parnassus Investments have?

Parnassus Investments has 30 clients and manages $41.1 billion for them, as of September 2026. They include 9 pension and profit-sharing plans, 8 investment companies and 6 charitable organizations.

Source: Form ADV Part 1A, Items 5.D and 5.F, filed 15 September 2026

What services does Parnassus Investments offer?

Parnassus Investments provides portfolio management for investment companies, portfolio management for pooled vehicles and portfolio management for institutions.

Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file

Which custodians does Parnassus Investments use?

Parnassus Investments’ separately managed account assets are held at Northern Trust Corporation (Chicago, IL), with $796,669,249, BNP Paribas Securities Services (Singapore), with $430,991,042, Fidelity Management Trust Company (Boston, MA), with $407,045,767 and Caisse Des Depots Et Consignations (Paris), with $373,461,075. Only custodians holding at least a tenth of those assets are named.

Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 15 September 2026

How many financial advisors does Parnassus Investments have?

Parnassus Investments has 11 investment adviser representatives registered with state securities authorities, out of 87 employees, and 28 perform investment advisory functions. 17 are registered representatives of a broker-dealer and 0 are licensed insurance agents.

Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file

What does Parnassus Investments invest in?

At the end of its last fiscal year, Parnassus Investments’ separately managed accounts held 98% exchange-traded equities and 2% cash and equivalents. It advises no private funds of its own.

Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file

Who owns Parnassus Investments?

Parnassus Investments is owned through a chain of holding companies by Affiliated Managers Group, Inc. Its direct owners are Todd Ahlsten (5% to 10%), Gallium Acquisition LLC (50% to 75%) and Benjamin Allen (10% to 25%).

Source: Form ADV Part 1A, Schedules A and B, filed 15 September 2026

How does Parnassus Investments get paid?

Parnassus Investments is paid through a percentage of assets under management. Its Form ADV lists no commissions or performance-based fees among how it is paid.

Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file

Sources

  1. Form ADV Part 1A, amendment filed 15 September 2026. Items 1, 5, 9, 11 and Schedules A, B and D.
  2. IAPD firm record, CRD 316904.
  3. Form 13F-HR, filed 29 July 2026 for the quarter ended 30 June 2026.

Retrieved 15 October 2026. All are published by the SEC and may have been amended since.

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This profile is compiled from public regulatory filings and is provided for informational purposes only. Niva Wealth is not affiliated with Parnassus Investments, LLC and makes no representation about the quality of its services. Figures reflect the filing dates shown and may have changed. Ownership percentages are the bands reported to the SEC, not exact figures.