# THORNBURG BOW RIVER ADVISERS, LLC.

THORNBURG BOW RIVER ADVISERS, LLC. of DENVER, CO is an SEC-registered investment adviser.

## Registration

- CRD: 332879
- Type: SEC-registered investment adviser
- SEC file number: 801-131106
- Location: 3250 E. SECOND AVENUE, DENVER, CO, 80206
- Phone: 303-861-8466
- Latest filing: 2026-08-28
- Regulatory AUM: $224.2M
- Discretionary AUM: $224.2M
- Clients: 29
- Accounts: 4

## Business model

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

## Officers, owners & control persons (28)

_Showing 25 of 28 people._

| Name | Role | Location |
| --- | --- | --- |
| [Harold Garrett Thornburg](https://search.stillhousedata.com/person/673945) | TRUSTEE | — |
| [Amy Mikolajczyk Callow](https://search.stillhousedata.com/person/673949) | CO-CHIEF LEGAL OFFICER | — |
| [Mark Joseph Zinkula](https://search.stillhousedata.com/person/673951) | EXECUTIVE VICE PRESIDENT, BOARD MEMBER | — |
| [Blair Ellard Richardson](https://search.stillhousedata.com/person/693974) | EXECUTIVE VICE PRESIDENT; EXECUTIVE VICE PRESIDENT, BOARD MEMBER; OFFICER, DIRECTOR & SHAREHOLDER | — |
| [James Daniel Kerr](https://search.stillhousedata.com/person/693976) | SECRETARY, CHIEF COMPLIANCE OFFICER, CO-CHIEF LEGAL OFFICER, VICE PRESIDENT | — |
| [Jane Clayton Ingalls](https://search.stillhousedata.com/person/693977) | CHIEF OPERATING OFFICER, VICE PRESIDENT; CHIEF OPERATING OFFICER, VICE PRESIDENT, BOARD MEMBER | — |
| [James Martin Weichert](https://search.stillhousedata.com/person/693978) | MANAGING MEMBER | — |
| [Aaron Michael Arnett](https://search.stillhousedata.com/person/697870) | VICE PRESIDENT, OFFICER, SHAREHOLDER | — |
| [Jamison Reid Davis](https://search.stillhousedata.com/person/697871) | CHIEF FINANCIAL OFFICER | — |
| [Jesse Ryan Brownell](https://search.stillhousedata.com/person/697872) | VICE PRESIDENT, BOARD MEMBER | — |
| [Jeremy David Held](https://search.stillhousedata.com/person/697873) | VICE PRESIDENT, BOARD MEMBER | — |
| [David Andrew Ettenger](https://search.stillhousedata.com/person/697874) | VICE PRESIDENT, BOARD MEMBER | — |
| [KERR RICHARD DANIEL](https://search.stillhousedata.com/person/729803) | CHIEF COMPLIANCE OFFICER AND SENIOR COUNSEL; SECRETARY, CHIEF COMPLIANCE OFFICER, CO-CHIEF LEGAL OFFICER, VICE PRESIDENT | — |
| [THORNBURG HAROLD GARRETT](https://search.stillhousedata.com/person/739594) | TRUSTEE | — |
| [RICHARDSON BLAIR ELLARD](https://search.stillhousedata.com/person/796187) | CHIEF EXECUTIVE OFFICER; EXECUTIVE VICE PRESIDENT; OFFICER, DIRECTOR & SHAREHOLDER | — |
| [ZINKULA MARK JOSEPH](https://search.stillhousedata.com/person/812319) | EXECUTIVE VICE PRESIDENT, BOARD MEMBER | — |
| [ARNETT AARON MICHAEL](https://search.stillhousedata.com/person/831753) | OFFICER, DIRECTOR AND SHAREHOLDER; VICE PRESIDENT, OFFICER, SHAREHOLDER | — |
| [INGALLS JANE CLAYTON](https://search.stillhousedata.com/person/868810) | CHIEF OPERATING OFFICER AND PRESIDENT; CHIEF OPERATING OFFICER, VICE PRESIDENT | — |
| [WEICHERT JAMES MARTIN](https://search.stillhousedata.com/person/868811) | MANAGING MEMBER | — |
| [DAVIS MATTHEW REID](https://search.stillhousedata.com/person/874022) | CHIEF FINANCIAL OFFICER | — |
| [HELD JEREMY DAVID](https://search.stillhousedata.com/person/875454) | VICE PRESIDENT, BOARD MEMBER | — |
| [CALLOW AMY MIKOLAJCZYK](https://search.stillhousedata.com/person/881306) | CO-CHIEF LEGAL OFFICER | — |
| [BROWNELL JESSE RYAN](https://search.stillhousedata.com/person/881345) | VICE PRESIDENT, BOARD MEMBER | — |
| [ETTENGER DAVID ANDREW](https://search.stillhousedata.com/person/881346) | VICE PRESIDENT, BOARD MEMBER | — |
| [Apfel Joshua Harrison](https://search.stillhousedata.com/person/885255) | OFFICER, DIRECTOR AND SHAREHOLDER | — |


## Disclosures (4)

| Initiated | Type | Allegations | Status | Amount |
| --- | --- | --- | --- | --- |
| 2016-06-13 | regulatory | ALLEGED FAILURE TO TIMELY FILE THREE VOTING RIGHTS NOTIFICATIONS WITH BAFIN AND THE ISSUERS. | Final | $111K |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/332879/brochure
- Similar advisers: https://search.stillhousedata.com/firm/332879/similar
- Related entities: https://search.stillhousedata.com/firm/332879/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/332879

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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.