![W. Macan](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
W. Macan
Director/Board Member at
GREENBROOK TMS INC.
Net worth: 1 M $ as of 2026-08-30
Profile
W.
Andrew Macan is Director at Greenbrook TMS, Inc. since 2024.
Mr. Macan is Secretary & Vice President at Federal Insurance Co. Former roles include Secretary, Senior Vice President & General Counsel at U.S.
Silica Holdings, Inc. from 2018 to 2020; Chief Compliance Officer & General Counsel at Axalta Coating Systems LLC from 2013 to 2018; Secretary & Vice President-Counsel at Chubb & Son, Inc. from 2003 to 2013; Secretary, Vice President & Corporate Counsel at The Chubb Corp.
from 2003 to 2013; and Secretary, Chief Compliance Officer & Executive VP at Neuronetics, Inc. from 2020 to 2026.
Education includes undergraduate studies at Franklin & Marshall College and graduate studies at Emory University School of Law.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
NEURONETICS, INC. 0.58% | 2026-03-29 | 382,894 ( 0.58% ) | 1 M $ | 2026-08-30 |
W. Macan active positions
| Companies | Position | Start |
|---|---|---|
| GREENBROOK TMS INC. | Director/Board Member | 2024-12-08 |
Federal Insurance Co.
 Federal Insurance Co. Multi-Line InsuranceFinance Writes property and casualty insurance, including personal and commercial | Corporate Secretary | - |
Former positions of W. Macan
| Companies | Position | End |
|---|---|---|
| NEURONETICS, INC. | Compliance Officer | - |
| U.S. SILICA HOLDINGS, INC. | General Counsel | 2019-12-31 |
Axalta Coating Systems LLC
 Axalta Coating Systems LLC Industrial SpecialtiesProcess Industries Develops, manufactures and markets liquid & powder coatings | Corporate Officer/Principal | 2018-09-30 |
| CHUBB CORP | General Counsel | 2013-09-30 |
Chubb & Son, Inc. | General Counsel | 2013-09-30 |
Training of W. Macan
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
65
1st degree connections
9
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 9 |
|---|---|
The Chubb Corp.
 The Chubb Corp. Multi-Line InsuranceFinance Operates as a holding company for a family of property and casualty insurance companies | Finance |
Federal Insurance Co.
Federal Insurance Co. Multi-Line InsuranceFinance Writes property and casualty insurance, including personal and commercial | Finance |
Neuronetics, Inc.
 Neuronetics, Inc. Medical SpecialtiesHealth Technology Develops and commercializes non-invasive therapies for psychiatric and neurological disorders | Health Technology |
U.S. Silica Holdings, Inc.
 U.S. Silica Holdings, Inc. Construction MaterialsNon-Energy Minerals Produces commercial silica | Non-Energy Minerals |
Axalta Coating Systems LLC
Axalta Coating Systems LLC Industrial SpecialtiesProcess Industries Develops, manufactures and markets liquid & powder coatings | Process Industries |
Franklin & Marshall College
 Franklin & Marshall College Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Chubb & Son, Inc. | Finance |
Emory University School of Law
 Emory University School of Law Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Greenbrook TMS, Inc.
 Greenbrook TMS, Inc. Medical/Nursing ServicesHealth Services Provides transcranial magnetic stimulation therapy services for treatment of major depressive and mental health disorders | Health Services |
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