# ROBERT JOHN LANGAN

ROBERT JOHN LANGAN is an investment adviser representative (IAR) with state registration records since 1994, appearing at 3 firms. Currently registered with CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC..

## Registration history (3)

| Firm | From | To | Current |
| --- | --- | --- | --- |
| [CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC.](https://search.stillhousedata.com/firm/134139) | 2020-11-13 | present | Yes |
| [MML INVESTORS SERVICES, LLC](https://search.stillhousedata.com/firm/10409) | 2011-02-18 | 2020-11-18 | — |
| [WIENKEN & ASSOCIATES, LTD.](https://search.stillhousedata.com/firm/115688) | 1994-11-14 | 2006-12-31 | — |

## More

- [This representative on SEC IAPD (source of record)](https://adviserinfo.sec.gov/individual/summary/1449020)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/rep/1449020.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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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.