Diego G. Biggerstaff

PIEDMONT CAPITAL MANAGEMENT

WHITEFISH, MT 59937

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CRD#: 8295829

Professional summary

Diego Gabriel Biggerstaff, who also goes by Diego XIap, is a registered financial advisor currently at PIEDMONT CAPITAL MANAGEMENT, LLC located in Whitefish, Montana.

Diego is registered as an IAR (Investment Advisor Representative) and started their career in finance in 2026. Diego has worked at 1 firm and has passed the Series 65 exam.

At a Glance

Always Fiduciary

Aliases

Diego Xiap

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.

The advisor shows no other business activity.

Blog Corner

CRS (Client Relationship Summary) - RIA

Click below to view Diego Gabriel Biggerstaff's CRS (Customer Relationship Summary).

CRS (Customer Relationship Summary)

Certified licenses

Advisors may have various certifications and credentials from different organizations. AdvisorCheck highlights these seven certifications - AIF®, CFP®, ChFC®, CFA, CLU®, CIMA®, CPWA®

None

Experience

Current

July 16, 2026 - Present

PIEDMONT CAPITAL MANAGEMENT, LLC

Office #1: 6442 Highway 93 South, Whitefish, MT 59937

RIA

CRD#: 165775

WHITEFISH, MT

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".

PIEDMONT CAPITAL MANAGEMENT, LLC

COCO ENTERPRISES, LLC | PIEDMONT CAPITAL MANAGEMENT, LLC

CRD#: 165775 / SEC#: 801-121170

RIA

Registered Investment Advisory firm - (5/7/2021 Approved)

Arizona

Registered Investment Advisory firm - (5/28/2021 Terminated)

Idaho

Registered Investment Advisory firm - (6/3/2021 Terminated)

Montana

Registered Investment Advisory firm - (5/28/2021 Terminated)

Oregon

Registered Investment Advisory firm - (8/6/2021 Terminated)

Texas

Registered Investment Advisory firm - (5/28/2021 Terminated)

Washington

Registered Investment Advisory firm - (6/28/2021 Terminated)

Why is a state registration marked "Terminated"? When a firm registers with the SEC (usually after managing $100M+ AUM), it often withdraws separate state firm registrations unless required by that state. The firm can still serve clients there through its individually registered Investment Advisor Representatives (IARs).

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.

Highlighted states indicate IAR registrations

IAR

Montana
(7/16/2026)

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

State Security Law Exam

IAR

Series 65

Date: 7/15/2026

Uniform Investment Adviser Law Examination

Current Firm

PIEDMONT CAPITAL MANAGEMENT, LLC

COCO ENTERPRISES, LLC | PIEDMONT CAPITAL MANAGEMENT, LLC

CRD#: 165775 / SEC#: 801-121170

RIA

Registered Investment Advisory firm - (5/7/2021 Approved)

Arizona

Registered Investment Advisory firm - (5/28/2021 Terminated)

Idaho

Registered Investment Advisory firm - (6/3/2021 Terminated)

Montana

Registered Investment Advisory firm - (5/28/2021 Terminated)

Oregon

Registered Investment Advisory firm - (8/6/2021 Terminated)

Texas

Registered Investment Advisory firm - (5/28/2021 Terminated)

Washington

Registered Investment Advisory firm - (6/28/2021 Terminated)

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Contact information

Main Address

6442 Highway 93 South, Whitefish, MT 59937

Mailing Address

Phone number

(406) 862-9400

Established

Firm type

Fiscal year end

# of Employees

SEC notice filing (7 States and Territories)

Documents

Customer Relationship Summary (CRS / SEC)

Latest Form ADV

Part 2 Brochures

PIEDMONT CAPITAL MANAGEMENT FORM ADV BROCHURE EFF 0328 2025 (3/30/2025)

Regulatory assets under management

Total Number of Accounts	1,181
AUM (Assets Under Management)	$ 200,124,845

Red Flags

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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Diego G. Biggerstaff

Professional summary

At a Glance

Aliases

Other business activities

Blog Corner

CRS (Client Relationship Summary) - RIA

Click below to view Diego Gabriel Biggerstaff's CRS (Customer Relationship Summary).

Certified licenses

Experience

PIEDMONT CAPITAL MANAGEMENT, LLC

Primary Firm SEC Registration

PIEDMONT CAPITAL MANAGEMENT, LLC

State Registrations and Notice Filings

Exams

Series 65

Date: 7/15/2026

Current Firm

PIEDMONT CAPITAL MANAGEMENT, LLC

Contact information

SEC notice filing (7 States and Territories)

Documents

Part 2 Brochures

Regulatory assets under management

Red Flags

Company Information

PIEDMONT CAPITAL MANAGEMENT, LLC

TRUST BUT VERIFY

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