# OBSIDIAN CIO, LLC

OBSIDIAN CIO, LLC of NEW YORK, NY is an SEC-registered investment adviser.

## Registration

- CRD: 289000
- Type: SEC-registered investment adviser
- SEC file number: 801-110874
- Location: 79 MADISON AVENUE, 8TH FLOOR, NEW YORK, NY, 10016
- Phone: 917-403-2622
- Latest filing: 2026-06-09
- Regulatory AUM: $1.3B
- Discretionary AUM: $1.3B
- Clients: 6
- Accounts: 7

## Business model

- Compensation: % of AUM, Other
- Clients served: High net worth, Pooled vehicles, Charities

## Officers, owners & control persons (12)

| Name | Role | Location |
| --- | --- | --- |
| Joseph Halpern | CHIEF COMPLIANCE OFFICER; ELECTED MANAGER, CCO; MANAGING MEMBER, CHIEF INVESTMENT OFFICER | New York, NY |
| Marc Bruce Rock | MEMBER AND MANAGER | — |
| Scott Harris Silver | MEMBER | — |
| SILVER CHARLES HARRIS | MEMBER | — |
| ROCK MARC BRUCE | MEMBER AND MANAGER | — |
| HALPERN JOSEPH | CHIEF COMPLIANCE OFFICER; MANAGER AND MEMBER; MANAGING MEMBER, CHIEF INVESTMENT OFFICER | — |
| RENSHAW ROBERT PHILIP | CHIEF COMPLIANCE OFFICER | — |
| Henry (Nmn) Ford Iii | BOARD MEMBER | — |
| Jason Walter Ingle | BOARD MEMBER | — |
| Thomas Christian Buhl | BOARD MEMBER | — |
| Joseph John Piazza | BOARD MEMBER | — |
| George Ronald Hornig | BOARD MEMBER | — |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/289000/brochure
- Similar advisers: https://search.stillhousedata.com/firm/289000/similar
- Related entities: https://search.stillhousedata.com/firm/289000/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/289000

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Source: public SEC Form ADV data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.