David William Mercer
Investment Adviser Representative at Winthrop Wealth
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
David William Mercer is an investment adviser representative with Winthrop Wealth in Bainbridge Island, WA, where they have been registered since 2025. They have worked in the securities industry since 1998 and were previously registered with Mercer Asset Management, Inc. They have passed 5 industry qualification exams, including the Series 65 (investment adviser), Series 7 (general securities representative), and Series 24 (general securities principal). They are registered to provide investment advice in Washington.
Registrations & licenses
- Investment adviser:
- Washington
Registration requirements vary by state and service. Contact the advisor's firm to confirm whether they can serve you.
Financial-firm registration history
Registration history as reported to FINRA, most recent first.
Reported employment history
Employment the advisor reported on their SEC/FINRA filings, as of October 8, 2026. It may not be a complete history.
- Mercer Asset Management, Inc.Oct 1998 – Dec 2025Bainbridge Island, WA
- Winthrop Advisory Group, LLCSep 2025 – no end date reportedBainbridge Island, WA
Official records & sources
Data as of August 10, 2026 · Source: SEC IAPD & FINRA BrokerCheck
About Winthrop Wealth
These details describe the firm overall. Individual advisors' services, clients, and fees may differ.
Fee arrangements the firm reports
- Percentage of assets under management
- Hourly
- Fixed fee
- Other
Arrangements the firm reports on its Form ADV; this advisor may not charge every fee listed. Estimated from the firm's Form ADV — individual terms may differ. Not a quote.
Services the firm offers
Client types the firm serves
Firm assets under management
$1B–$5B
- Firm disclosures (Form ADV)
- No disciplinary history reportedVerify on SEC IAPD
- Advisors listed on AdvisorFinder:
- 28
- Offices listed on AdvisorFinder:
- 7
- Main office:
- Boston, MA
- SEC file number:
- 801-110461
Counts reflect AdvisorFinder directory coverage, not necessarily the firm's complete network.
Form ADV data as of September 30, 2026
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Showing 12 of 28 in the directory
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This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. David William Mercer has not reviewed, approved, or endorsed this profile and is not responsible for its accuracy. Regulatory records change over time — always verify the current record directly on BrokerCheck or SEC.gov before making any decision. AdvisorFinder may be compensated for referrals generated through this page.
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