# Effissimo Partners

Effissimo Partners is an Asset Manager based in Singapore, Singapore.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** Singapore, Singapore
- **Region:** Asia
- **Address:** Singapore, Singapore
- **Founded:** 2006
- **Assets under management:** $5B–$10B (Altss estimate)
- **Website:** effissimopartners.com

## Regulatory record

- **CRD number:** 282954
- **SEC file number:** 802-107487
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/282954

## About

Effissimo Capital Management Pte Ltd is a firm engaged in investment and asset management. It analyzes investee companies and undertakes activities aimed at their medium- to long-term corporate value enhancement, as well as other investment- and operations-related work.

## Sectors

- Activist Investing
- Event-Driven
- Value Investing
- Special Situations

## People

- Nobuyuki Oyanagi — Founder and Chief Investment Officer
- Yoichiro Imai — Co-founder and Partner

## Questions

### Who runs investment decisions at Effissimo Partners?

Nobuyuki Oyanagi is the founder and chief investment officer, making all final investment decisions. He is a former analyst at the Murakami Fund, Japan's first major activist hedge fund. Co-founder Yoichiro Imai also has a senior role in the firm.

### How does Effissimo Partners source deal flow?

Effissimo takes a bottom-up, value-driven approach focused on Japanese public equities where the firm sees governance gaps or undervaluation. The firm's deal flow is proprietary, based on deep fundamental research rather than external placement agents or advisors.

### Does Effissimo Partners invest in private markets or only public equities?

Effissimo focuses almost exclusively on public equities. Its activism targets publicly traded Japanese companies, where it takes large minority or majority stakes and pushes for corporate change. The firm has not disclosed significant private equity or venture capital activity.

### Which sectors does Effissimo Partners typically target?

The firm is sector-agnostic but has concentrated on large-cap and mid-cap Japanese companies with weak governance, high cash holdings, or poor capital allocation. Notable sectors include electronics (Toshiba), utilities (Kansai Electric Power), entertainment (Shochiku), and leisure/gaming (Kosaido).

### How is Effissimo Partners related to the Murakami Fund?

Effissimo's founder, Nobuyuki Oyanagi, began his career at the Murakami Fund, which was run by Yoshiaki Murakami and was Japan's first major activist hedge fund. While Effissimo is an independent firm, its activist playbook—taking large stakes, filing proposals, and engaging regulators—draws directly from the Murakami approach.

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- [Southwestern Advisory Group](https://altss.com/profile/southwestern-advisory-group-llc)
- [MAPLE LAWN FINANCIAL SERVICES, LLC](https://altss.com/profile/maple-lawn-financial-services-llc)

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Last updated: 2026-08-11T15:06:35.052Z

Canonical page: https://altss.com/profile/effissimo-partners

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