# SIGMA INVESTMENT MANAGEMENT COMPANY

SIGMA INVESTMENT MANAGEMENT COMPANY of PORTLAND, OR is an SEC-registered investment adviser.

## Registration

- CRD: 104535
- Type: SEC-registered investment adviser
- SEC file number: 801-42418
- Location: 121 SW MORRISON ST., SUITE 800, PORTLAND, OR, 97204-3126
- Phone: 503-419-3938
- Latest filing: 2019-03-26

## Officers, owners & control persons (7)

| Name | Role | Location |
| --- | --- | --- |
| BERG WILLIAM ARTHUR | CHIEF EXECUTIVE OFFICER, SHAREHOLDER; PRESIDENT; PRESIDENT, CHIEF COMPLIANCE OFFICER (+1 more) | — |
| ABRAHAMSON JOHN CRAIG | CHIEF INVESTMENT OFFICER; CHIEF INVESTMENT OFFICER, SHAREHOLDER | — |
| VAN HORN JAMES THOMAS | CHIEF COMPLIANCE OFFICER; CHIEF COMPLIANCE OFFICER / CHIEF FINANCIAL OFFICER; CHIEF COMPLIANCE OFFICER / CHIEF OPERATING OFFICER | — |
| ARMITAGE CAROLYN ANN | CHIEF TECHNOLOGY OFFICER | — |
| GEARY SUZANNE | CHIEF OPERATING OFFICER | — |
| LAURIN HARMON PAO WANG | PRESIDENT, SHAREHOLDER | — |
| WYLDER TIMOTHY JAMES | VICE PRESIDENT AND SECRETARY, SHAREHOLDER | — |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/104535/brochure
- Similar advisers: https://search.stillhousedata.com/firm/104535/similar
- Related entities: https://search.stillhousedata.com/firm/104535/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/104535

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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.