# WILLIAM PATRICK MCMAHON

WILLIAM PATRICK MCMAHON is an investment adviser representative (IAR) with state registration records since 2001, appearing at 4 firms. Currently registered with CHARLES SCHWAB INVESTMENT MANAGEMENT, INC.

## Registration history (4)

| Firm | From | To | Current |
| --- | --- | --- | --- |
| [CHARLES SCHWAB INVESTMENT MANAGEMENT, INC](https://search.stillhousedata.com/firm/106753) | 2022-07-06 | present | Yes |
| [CHARLES SCHWAB INVESTMENT ADVISORY, INC.](https://search.stillhousedata.com/firm/151739) | 2018-03-19 | 2022-07-07 | — |
| [WELLESLEY INVESTMENT PARTNERS, LLC](https://search.stillhousedata.com/firm/144984) | 2007-10-09 | 2009-12-31 | — |
| [THOMASPARTNERS, INC.](https://search.stillhousedata.com/firm/104966) | 2001-07-06 | 2018-03-30 | — |

## More

- [This representative on SEC IAPD (source of record)](https://adviserinfo.sec.gov/individual/summary/4280588)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/rep/4280588.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.