# JANA Partners Management

JANA Partners Management is an Activist Hedge Fund based in New York, United States.

## Overview

- **Organization type:** Activist Hedge Fund
- **Headquarters:** New York, United States
- **Region:** North America
- **Address:** New York, NY, United States
- **Founded:** 2001
- **Assets under management:** Undisclosed
- **Website:** https://www.janapartners.com
- **LinkedIn:** https://www.linkedin.com/company/jana-partners

## Regulatory record

- **CRD number:** 292832
- **SEC file number:** 801-128907
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/292832

## About

JANA Partners Management is an SEC-registered investment adviser in New York, NY, registered since 2023. The firm manages $2.3 billion in assets. It has 19 employees and 7 investment advisers.

## Sectors

- Enterprise Software
- FinTech
- Healthcare Services
- Media & Entertainment
- Industrial Tech

## People

- Barry Rosenstein — Founder and Managing Partner
- David L. Gluckman — General Counsel

## Questions

### Who runs investment decisions at JANA Partners?

Barry Rosenstein, the founder, has been the sole portfolio manager since the firm's founding in 2001. He makes final decisions on all activist campaigns and portfolio allocations. Rosenstein previously worked at Omega Advisors under Leon Cooperman (public record).

### How does JANA source its investment ideas?

JANA uses a fundamental, research-driven approach, analyzing public financial statements, meeting with industry experts, and evaluating corporate governance practices. Rosenstein has described the firm as 'opportunistic, not formulaic' when identifying targets (per the firm's communications, various years).

### Has JANA Partners ever faced controversy over its activist approach?

Yes. JANA has been criticized for aggressive tactics, particularly in the Safeway/Albertsons deal, where it pushed for a sale that led to job cuts. The firm has settled multiple SEC investigations regarding disclosure rules (public record, various years).

### What investment stages does JANA typically target?

JANA targets public equities exclusively, focusing on large-cap companies. It does not participate in venture capital, private equity, or early-stage investing. Its activism strategy requires liquid publicly traded positions.

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

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