# O'BRIEN MARK GERARD

O'BRIEN MARK GERARD appears across SEC filings — Form ADV advisers, Form D, Reg A, and crowdfunding offerings. 4 filing roles across Form ADV (4).

## Filings (4)

| Filed | Source | Entity | Role | Location |
| --- | --- | --- | --- | --- |
| — | Form ADV | [GENEVA CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/105432) | PRESIDENT | MILWAUKEE, WI |
| — | Form ADV | [AMP CAPITAL BROOKFIELD (US) LLC](https://search.stillhousedata.com/firm/142499) | DIRECTOR | CHICAGO, IL |
| — | Form ADV | [HENDERSON GLOBAL INVESTORS (NORTH AMERICA) INC.](https://search.stillhousedata.com/firm/107300) | MANAGING DIRECTOR / PRESIDENT | DENVER, CO |
| — | Form ADV | [HENDERSON INVESTMENT MANAGEMENT LIMITED](https://search.stillhousedata.com/firm/112077) | DIRECTOR | LONDON |


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Source: public SEC filing 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.