# Parnassus Investments

Parnassus Investments is a Private Equity based in San Francisco, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** San Francisco, United States
- **Region:** North America
- **Address:** San Francisco, CA, United States
- **Founded:** 1984
- **Assets under management:** Undisclosed
- **Website:** parnassus.com
- **LinkedIn:** https://www.linkedin.com/company/parnassus-investments

## Regulatory record

- **CRD number:** 316904
- **SEC file number:** 801-122618
- **Registration status:** Registered
- **Reports private funds:** No
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/316904

## About

Parnassus Investments is an SEC-registered investment adviser in San Francisco, CA, registered since 2021. The firm manages approximately $41.1 billion in assets. It has 87 employees and 28 investment advisers.

## People

- Jerome Dodson — Founder
- Benjamin Allen — CEO
- Todd Ahlsten — Chief Investment Officer

## Questions

### Who runs investment decisions at Parnassus Investments?

Todd Ahlsten serves as Chief Investment Officer and lead portfolio manager of the flagship Parnassus Core Equity Fund. Benjamin Allen is CEO. Jerome Dodson, the founder, built the firm's initial investment framework and ESG methodology. The portfolio management team operates with a bottom-up, fundamental research approach across its fund lineup.

### Does Parnassus run private equity funds or venture capital vehicles?

No. Parnassus Investments is a mutual fund manager focused exclusively on publicly traded U.S. equities. The firm does not operate private equity, venture capital, or hedge fund vehicles. Its entire platform consists of no-load mutual funds available to retail and institutional investors.

### What investment stages and asset classes does Parnassus target?

Parnassus targets publicly traded large-cap and mid-cap U.S. equities. The firm runs approximately half a dozen mutual funds spanning core, mid-cap, small-cap, and fixed income strategies. Its flagship Core Equity Fund concentrates on roughly 30 to 40 large-cap holdings with durable competitive moats and high ESG ratings.

### Which sectors does Parnassus explicitly avoid?

Parnassus screens out companies deriving significant revenue from fossil fuel extraction, tobacco, weapons manufacturing, and nuclear power. The firm also avoids companies with poor records on labor relations, environmental violations, or corporate governance failures. These exclusions are hardwired into the investment mandate, not subject to portfolio manager discretion.

### Does Parnassus participate in co-investments or direct private deals?

No. Parnassus does not participate in direct private deals, co-investments alongside private equity firms, or any form of private capital deployment. The firm invests solely through its publicly traded mutual fund products. Institutional allocators access Parnassus strategies by purchasing the funds directly or through intermediary platforms.

## Related profiles

- [Parlin Advisors](https://altss.com/profile/parlin-advisors)
- [Parquest Capital](https://altss.com/profile/parquest-capital)

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Last updated: 2026-06-03T20:00:00.000Z

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