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.
| Firm | From | To | Current |
|---|---|---|---|
| CHARLES SCHWAB INVESTMENT MANAGEMENT, INC | 2022-07-06 | present | Yes |
| CHARLES SCHWAB INVESTMENT ADVISORY, INC. | 2018-03-19 | 2022-07-07 | — |
| WELLESLEY INVESTMENT PARTNERS, LLC | 2007-10-09 | 2009-12-31 | — |
| THOMASPARTNERS, INC. | 2001-07-06 | 2018-03-30 | — |