# Solstein Capital

Solstein Capital is a RIA based in Menlo Park, United States.

## Overview

- **Organization type:** RIA
- **Headquarters:** Menlo Park, United States
- **Region:** North America
- **Address:** New York, NY, United States
- **Assets under management:** Undisclosed
- **Website:** solsteincapital.com

## Regulatory record

- **CRD number:** 157888
- **SEC file number:** 801-112859
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/157888

## About

SOLSTEIN CAPITAL, LLC is an SEC-registered investment adviser in MENLO PARK, CA, registered since 2018. The firm manages approximately $802 million in regulatory assets. It has 6 employees and 3 investment advisers.

## Sectors

- Enterprise Software
- FinTech
- Healthcare Services
- Media & Entertainment
- Real Estate
- Private Credit

## People

- Alexander Klabin — Founder and CEO

## Questions

### Who runs investment decisions at Solstein Capital?

Alexander Klabin, the founder and CEO, is the primary investment decision-maker. He built his career at Senator Investment Group as a co-founder and managing partner, where he was known for a credit-driven, fundamental research approach. At Solstein, he directly oversees all portfolio allocations.

### How does Solstein Capital source proprietary deal flow?

Solstein relies on Alexander Klabin's two decades of relationships from his time at Senator Investment Group, one of the longest-running credit-focused hedge fund platforms. The firm accesses opportunities through direct sponsor dialogue, co-investment circles with other family offices, and existing general partner relationships. The office does not market itself for deal origination.

### Does Solstein Capital participate in fund commitments or only direct deals?

The office engages in both. Solstein makes direct investments in private companies and real estate assets, and also commits to third-party funds, particularly in venture capital, private credit, and special-situations strategies where Klabin has long-standing manager relationships.

### What investment stages does Solstein Capital typically target?

Across its private market activities, Solstein targets growth-stage venture, late-stage pre-IPO rounds, and direct credit origination. The office does not publicly disclose a specific stage mandate, but observed positions include Series B through pre-IPO companies in enterprise software and fintech.

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- [MSH Capital Advisors](https://altss.com/profile/msh-capital-advisors-llc)
- [OLSON, CROSS & ALAMO ADVISORS](https://altss.com/profile/olson-cross-and-alamo-advisors-llc)

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Last updated: 2026-07-06T01:24:25.765Z

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