# INATAI INVESTMENT MANAGEMENT CO. LLC

INATAI INVESTMENT MANAGEMENT CO. LLC of SEATTLE, WA is an SEC-registered investment adviser.

## Registration

- CRD: 329696
- Type: SEC-registered investment adviser
- SEC file number: 801-129651
- Location: 1301 5TH AVE, SUITE 2600, SEATTLE, WA, 98101
- Phone: 206-788-8900
- Latest filing: 2026-05-11
- Regulatory AUM: $2.7B
- Discretionary AUM: $2.7B
- Clients: 8
- Accounts: 3

## Business model

- Compensation: % of AUM
- Clients served: Investment cos

## Officers, owners & control persons (23)

| Name | Role | Location |
| --- | --- | --- |
| [David NMN Nierenberg](https://search.stillhousedata.com/person/56077) | BOARD MEMBER | CAMAS, WA |
| [Walter Russell Costenbader](https://search.stillhousedata.com/person/686698) | CHIEF COMPLIANCE OFFICER | — |
| [Peng Nmn Wang](https://search.stillhousedata.com/person/700874) | CHIEF INVESTMENT OFFICER / CHIEF EXECUTIVE OFFICER | — |
| [Julianne Christie Reilly](https://search.stillhousedata.com/person/700875) | IMCO BOARD SECRETARY | — |
| [Peter Henry Van Oppen](https://search.stillhousedata.com/person/700876) | BOARD CHAIR | — |
| [Nichole June Maher](https://search.stillhousedata.com/person/700877) | BOARD MEMBER | — |
| [Cara Chiemi Nakamura](https://search.stillhousedata.com/person/700878) | BOARD MEMBER | — |
| [Andrew Gregory Shoals](https://search.stillhousedata.com/person/700880) | BOARD MEMBER | — |
| [Marisa Nicole Grant](https://search.stillhousedata.com/person/700881) | BOARD MEMBER | — |
| [Benjamin Nmn Danielson](https://search.stillhousedata.com/person/712984) | BOARD MEMBER | — |
| [VAN ZUTPHEN CORNELIUS HENRY](https://search.stillhousedata.com/person/735945) | BOARD CHAIR | — |
| [COSTENBADER WALTER RUSSELL](https://search.stillhousedata.com/person/784208) | CHIEF COMPLIANCE OFFICER | — |
| [WANG KANGNING NMN](https://search.stillhousedata.com/person/811752) | CHIEF INVESTMENT OFFICER / CHIEF EXECUTIVE OFFICER | — |
| [GRANT MARISA NICOLE](https://search.stillhousedata.com/person/875607) | BOARD MEMBER | — |
| [REILLY JULIANNE CHRISTIE](https://search.stillhousedata.com/person/881009) | IMCO BOARD SECRETARY | — |
| [MAHER NICHOLE JUNE](https://search.stillhousedata.com/person/881010) | BOARD MEMBER | — |
| [NAKAMURA CARA CHIEMI](https://search.stillhousedata.com/person/881011) | BOARD MEMBER | — |
| [VEGA-MARQUIS LUZ ARGENTINA](https://search.stillhousedata.com/person/881012) | BOARD MEMBER | — |
| [NIERENBERG DAVID NMN](https://search.stillhousedata.com/person/881013) | BOARD MEMBER | — |
| [SHOALS ANDREW GREGORY](https://search.stillhousedata.com/person/881014) | BOARD MEMBER | — |
| [Peng (Nmn) Wang](https://search.stillhousedata.com/person/980834) | CHIEF INVESTMENT OFFICER / CHIEF EXECUTIVE OFFICER | — |
| [David (Nmn) Nierenberg](https://search.stillhousedata.com/person/980840) | BOARD MEMBER | — |
| [Muthukkaruppan Muthiah](https://search.stillhousedata.com/person/1543482) | BOARD MEMBER | Atlanta, GA |


## Private funds (3)

Mix: Hedge Fund 1 · Private Equity Fund 2

| Fund | Type | Formed | Owners | GAV | Min investment |
| --- | --- | --- | --- | --- | --- |
| INATAI FUND, LP | Hedge Fund | Delaware | 3 | $2.7B | $5.0M |
| INATAI PARTNERS FUND, LP | Private Equity Fund | Delaware | 1 | $697.5M | $5.0M |
| INATAI PRI FUND, LP | Private Equity Fund | Delaware | 1 | $1.0M | $100K |


## Fund service providers (1)

- custodian: INATAI PARTNERS FUND, LP

## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/329696/brochure
- Similar advisers: https://search.stillhousedata.com/firm/329696/similar
- Related entities: https://search.stillhousedata.com/firm/329696/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/329696

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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.