AUMdb
CA

Coston And Mcisaac Investment Advisers, Llc

State-registered Investment Adviser CRD 109730 · SEC file 801-85173 · Bar Harbor, ME
☆ Save with Pro ADV data as of Jan 14, 2026
Regulatory AUM
Discretionary
Clients
Avg AUM / client
Accounts
Employees
3

AUM over time

$0 $137M
Dec 2014 Dec 2017

Annual snapshots from Form ADV filings · as of Jan 14, 2026

People (3)

roster as of Jul 20, 2026
NameRole / titleCredentialsWith firm sinceOwnership
Maurice Joseph Mcisaac Managing Member Chief Compliance Officer Jan 2001 (26y) 50% – 75%
Paul Arnold Coston Member CFP Jan 2001 (26y) 50% – 75%
Patricia A. Pottle Registered representative Jan 2007 (20y)

Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.

Documents (1 archived)

FormPeriodSize
Form ADV (full filing) 01/14/2026 1.19 MB View · PDF · Source ↗

Archived copies of the firm's regulatory filings, versioned by content hash.

Disciplinary disclosures

Regulatory · Item 11.D(1) as of Feb 15, 2018

Allegations: MS. POTTLE SENT AN E-MAIL LOOKING FOR INFORMATION ON THE CLIENTS WHEREABOUTS TO A CLIENTS FAMILY MEMBER AND INADVERTENTLY WROTE THAT THE CLIENT HAD TAXES DUE OF A CERTAIN DOLLAR VALUE. SHE HOPED THIS WOULD MOTIVATE THE SIBLING TO HELP HER FIND THE CLIENT. THIS WAS AN ERROR AND RESULTED IN GIVING CONFIDENTIAL INFORMATION TO AN INDIVIDUAL OTHER THAN HER CLIENT. Status: Final Sanction Detail: A FINE OF $500.00 WAS ISSUED Summary: MS. POTTLE CONTACTED A TAX CLIENTS FAMILY MEMBER AND INADVERTENTLY GAVE THE FAMILY MEMBER THE CLIENTS CONFIDENTIAL INFORMATION. THIS RESULTED IN A WARNING AND A FINE OF $500.00

Disclosure text reproduced verbatim from the firm's own Form ADV filings.

How they charge

  • Other fees
  • FOR SOLICITOR REFERRALS

Services

  • Other services

Custody

Firm reports it does not have custody of client funds or securities (Item 9.A).

No custodian data reported or mined yet.

Source

All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Jan 14, 2026.

View current Form ADV (SEC/IAPD) ↗