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William Mitchell Zerillo

OASIS ADVISORS
Lititz, PA
·CRD# 7133139·7 years experience

Professional Summary

William Mitchell Zerillo, who also goes by Billy Mitchell Zerillo, is a registered financial advisor currently at OASIS ADVISORS located in Lititz, Pennsylvania. William is registered as an IAR (Investment Advisor Representative) and started their career in finance in 2019. William has worked at 4 firms and has passed the Series 65, Series 63, Series 6TO and SIE exams.

At a Glance

Always Fiduciary

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Other Aliases

Billy Mitchell Zerillo

Blog Corner

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Videos & Posts

This advisor has not added any videos or posts yet.

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Contact Information

This advisor has not claimed their profile yet, so there is no contact information to display at this time.

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Disclosures are events reported to regulators, such as customer disputes, regulatory actions, employment separations, or financial events. Some are resolved, denied, or contested — a disclosure is not a verdict. We recommend asking an advisor directly about any disclosure on their record.

Disclosures on record.

Disclosures can be potential red flags, including customer disputes, regulatory fines, employer terminations, bankruptcies, judgments, liens, or certain criminal activities. Check for any disclosures as part of your thorough research when choosing an advisor.

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Years of Experience

7 years in the financial services industry

Current & Past Employments

OASIS ADVISORS·CRD# 335555
RIA
Lititz, PA
May 27, 2025 - Present
TERRA WEALTH·CRD# 320643
RIA
York, PA
September 9, 2022 - April 23, 2025
CAPE SECURITIES INC.·CRD# 7072
BD
York, PA
September 9, 2022 - December 31, 2024
PFS INVESTMENTS INC.·CRD# 10111
RIA
York, PA
September 24, 2021 - September 13, 2022
PFS INVESTMENTS INC.·CRD# 10111
BD
York, PA
August 1, 2019 - September 13, 2022

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Current Firm

OA
OASIS ADVISORS

OASIS ADVISORS | OASIS ADVISORS, LLC

CRD#: 335555 / SEC#: 801-132394
RIA
Registered Investment Advisory firm - SEC (4/11/2025 Approved)

Contact Information

Main Address

136 S 4th Street, Forest City, IA 50436

Phone Number

(641) 251-6001

# of Employees

27

SEC notice filing (23 States and Territories)

Registered to provide investment advisory services in 23 US states and territories.

Documents

Customer Relationship Summary (CRS / SEC)Latest Form ADV

Part 2 Brochures

FORM ADV PART 2A - OASIS ADVISORS (3/23/2026)

Regulatory Assets Under Management

Total Number of Accounts

5,052

AUM (Assets Under Management)

$277,687,094

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Other business activities

Outside business activity is any business or activity undertaken by an advisor that is outside the scope of their relationship with their firm (e.g., consulting services, real estate, freelance work, teaching, etc.). Investors should stay informed about these activities to ensure no conflicts of interest.

1) �LICENSED INSURANCE AGENT; INSURANCE SALES; INVESTMENT RELATED; APPX 10% OF TIME DURING THE MONTH. 2) Your Money Your Purpose LLC: Multi Member LLC - 50/50 owner used for Money Mindset Coaching and educational content.

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Primary Firm SEC Registration

This SEC-registered firm can serve clients nationwide. Some states may require the firm to submit a notice filing if the firm has more than 5 clients or a physical office there. You can view these state-level filings under the section titled "State Registrations and Notice Filings".
OA
OASIS ADVISORS

OASIS ADVISORS | OASIS ADVISORS, LLC

CRD#: 335555 / SEC#: 801-132394
RIA
Registered Investment Advisory firm - SEC (4/11/2025 Approved)

State Registrations and Notice Filings

Listed states reflect where the advisor is authorized to serve clients under state regulations.
IAR
means the advisor is registered as an Investment Advisor Representative in this state and is authorized to provide investment advice to clients there.
IAR
Pennsylvania
(5/27/2025)

Don't see your state listed? The advisor may still be able to work with you under the federal De Minimis Rule, which allows up to five investment advisory clients in a state without registration. Some states, like TX, LA, NE, and NH, may still require registration or notice filing. Contact the advisor or their firm to confirm their investment advisory availability in your state.

Exams

Financial professionals may take different exams throughout their careers based on the types of services they provide and roles they perform.

Series 65 — Uniform Investment Adviser Law Examination

Passed Sep 2021About the Series 65 exam

Series 63 — Uniform Securities Agent State Law Examination

Passed Aug 2019About the Series 63 exam

Series 6TO — Investment Company Products/Variable Contracts Representative Examination

Passed Aug 2019About the Series 6TO exam

SIE — Securities Industry Essentials Examination

Passed May 2019About the SIE exam

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CRS (Client Relationship Summary) - RIA

Click below to view William Mitchell Zerillo's CRS (Customer Relationship Summary).

CRS (Customer Relationship Summary)

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