# AETHERION

AETHERION is an Asset Manager based in Albany, United States.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** Albany, United States
- **Region:** North America
- **Address:** Miami, FL, United States
- **Founded:** 2023
- **Assets under management:** Over $5 billion (Altss estimate)
- **Website:** aetherion.com

## Regulatory record

- **CRD number:** 340660
- **Registration status:** Registered
- **Reports private funds:** No
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/340660

## About

AETHERION LLC is a state-registered investment adviser in ALBANY, NY. It has 1 employee and 1 investment adviser. The firm is based in New York.

## Sectors

- Venture Capital
- Growth Equity
- AI/ML
- Enterprise Software
- FinTech
- HealthTech
- Cybersecurity

## People

- Ken Griffin — Founder

## Questions

### Who runs investment decisions at Aetherion?

Ken Griffin serves as the founder and sole decision-maker on investment allocations. Griffin built Citadel into one of the world's largest hedge funds and applies the same quantitative rigor to venture and growth equity at Aetherion. The firm operates a lean team, with investment analysts supporting deal origination and due diligence directly under Griffin's oversight.

### Does Aetherion participate in fund commitments or only direct deals?

Aetherion executes exclusively direct investments in technology companies, writing equity checks from early-stage through pre-IPO rounds. The firm does not invest as a limited partner in third-party venture capital funds, distinguishing it from fund-of-funds strategies that allocate capital to external managers. This direct-only mandate allows Griffin to maintain full control over portfolio construction and avoid the fee drag associated with fund commitments.

### What investment stages does Aetherion typically target?

Aetherion targets Series A through late-stage growth rounds, with initial investments reported in the $50 million to $150 million range. The firm can follow on in subsequent rounds and holds positions without the time pressure that forces traditional venture funds to exit within a 10-year fund lifecycle. Its permanent capital base means early-stage investments can be held through IPO and beyond.

### How is Aetherion related to Citadel?

Aetherion is a separate legal entity from Citadel, the hedge fund Ken Griffin founded in 1990 and continues to run as CEO. The two firms share no commingled capital or formal investment committee overlap. However, Aetherion benefits from Griffin's access to Citadel's data-science infrastructure and talent network, creating an informal ecosystem advantage unavailable to standalone venture firms.

## Related profiles

- [Shah Wealth Advisors](https://altss.com/profile/shah-wealth-advisors)
- [Dyne Ventures Management II](https://altss.com/profile/dyne-ventures-management-ii)

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

Canonical page: https://altss.com/profile/aetherion-llc

Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology