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Mark H Sladkus

Advisor at Red Lighthouse Investment Management, LLC — Hillsdale, NY

Updated today

Credentials

Series 65

Experience

5 years

Location

Hillsdale, NY

About

Mark Sladkus is the sole advisor at Red Lighthouse Investment Management, LLC, holding a Series 65 designation with 19 years at the firm and 4 years of industry experience. Based in Hillsdale, NY, he has led the firm since its founding in 2007. Red Lighthouse Investment Management provides discretionary portfolio management and advisory services to individuals, corporations, foundations, endowments, pension and profit-sharing plans, and trusts. The firm employs a passive, asset-allocation approach based on Modern Portfolio Theory, using low-cost, tax-efficient index funds and Dimensional Fund Advisors products with disciplined rebalancing and a focus on global diversification and tax considerations.

Client services

Based on Red Lighthouse Investment Management, LLC

Financial planning Portfolio management

Expertise

Based on Red Lighthouse Investment Management, LLC

Passive / index investing

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Fee options

Fixed

Flat fees may be charged alternatively but specific amounts not stated.

Percentage

$0 - $1,000,000: 1.00% annually $1,000,001 - $2,000,000: 0.90% annually $2,000,001 - $3,000,000: 0.70% annually $3,000,001 - $4,000,000: 0.50% annually $4,000,001 - $5,000,000: 0.50% annually $5,000,001+: Negotiable

Other

Account minimum: $2,000,000 Fee-only: Fee-only advisory firm compensated only by clients; no commissions or other compensation received.

Location

Hillsdale, NY

Hillsdale NY

Advisors at this office

1

Most active in

New York

Work history

5 years of industry experience

Red Lighthouse Investment Management, LLC

2007 - Present • 19 years

Hillsdale, NY

Disclosures

Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.

Business activities & affiliations

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Eric K

CFA®, Series 63

Great Barrington, MA

Rockingstone Advisors

Eric Katzman is a CFA® charterholder with 31 years of industry experience. He has been with Rockingstone Advisors since 2016. Katzman serves on the Board of Trustees at Oberlin College, where he advises on the university endowment, and he is also a board member of the Berkshire Natural Resource Council, focusing on environmental stewardship. Additionally, he is an advisory board member of Jove Island Acquisition Corp, contributing to investment decisions. Rockingstone Advisors manages approximately $280 million for primarily high-net-worth individuals, trusts, retirement plans, and select OCIO clients. The firm employs an actively managed, multi-step investment process across various asset classes, using strategies that include derivatives and margin in separately managed accounts.

Active portfolio management
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Wesley G

CFA®, Series 63, Series 65

Hudson, NY

Seven Canyons Advisors, LLC

Wesley Golby is a CFA® charterholder with 11 years of industry experience, currently serving as an advisor at Seven Canyons Advisors, LLC. His prior roles include positions at Acacia Research, Ark Global Asset Management, and Fleckenstein Capital Management. Outside of his financial career, he is the managing member and sole owner of Ramshackle Properties, LLC, a hotel operating business. Seven Canyons Advisors provides discretionary investment management primarily to pooled vehicles and institutional accounts, including registered mutual funds and retirement plans. The firm uses a bottom-up fundamental research process and proprietary screening to build concentrated strategies across its global equity approaches.

Active portfolio management Options & derivatives strategies Private / alternative investments Concentrated stock management
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John B

ChFC®, Series 65

Great Barrington, MA

American Investment Services Inc

John Barry is a ChFC® and Series 65-registered financial advisor with over 22 years of industry experience. He has been with American Investment Services, Inc. since 1994, totaling 32 years at the firm’s Great Barrington, MA location. American Investment Services, Inc. provides discretionary wealth management to individuals, charitable organizations, and corporations, offering strategies that emphasize a structured, passive asset-allocation approach based on Modern Portfolio Theory. The firm manages over $1 billion in client assets with a small advisory team and features access to Dimensional Fund Advisors products and Unified Managed Accounts.

Wealth management Passive / index investing Retirement income strategy Tax-loss harvesting
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Gary M

Great Barrington, MA

Tableaux Wealth

Gary Martinelli is a financial advisor at Tableaux Wealth with 26 years of industry experience. He previously operated Martinelli Portfolio Management, Inc. for 25 years and has managed a law practice at Martinelli Law, LLC for over 35 years. Outside of financial advising, he serves as executive committee chair of Convenient Cards, Inc., a company that markets prepaid card programs, and holds leadership roles in several commercial real estate entities. Tableaux Wealth is an SEC-registered advisory firm serving individuals, trusts, estates, businesses, and retirement plans. The firm employs fundamental analysis and modern portfolio theory in its investment approach, managing portfolios with low-cost mutual funds, ETFs, and other instruments, while using third-party artificial intelligence for research and risk monitoring.

Active portfolio management Options & derivatives strategies Wealth management Retirement income strategy
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Jeremy L

Series 65

Lenox, MA

Renaissance Investment Group, LLC

Jeremy Lundquist is a financial advisor with Renaissance Investment Group, LLC, holding a Series 65 credential and four years of industry experience. Prior to joining Renaissance, he worked for the United States Government for six years and was employed at George Mason University for two years. Renaissance Investment Group provides discretionary and non-discretionary investment supervisory services and financial counseling to individual, high-net-worth, and institutional clients. The firm combines macroeconomic and geopolitical analysis with fundamental and technical research, emphasizing a long-term purchase-and-hold strategy while incorporating ESG considerations and offering customized services for banking and corporate clients.

ESG / Sustainable investing
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Trevor F

Series 65

Lenox, MA

Renaissance Investment Group, LLC

Trevor Forbes is a financial advisor at Renaissance Investment Group, LLC with 14 years of industry experience. He holds a Series 65 designation and has been with Renaissance Investment Group since 2011. Renaissance Investment Group provides discretionary and non-discretionary portfolio management and financial counseling to individuals, pension and profit-sharing plans, charitable organizations, corporations, and banking or thrift institutions. The firm combines top-down geopolitical and macroeconomic analysis with bottom-up fundamental research, maintaining a long-term purchase-and-hold strategy tailored to client-specific investment policy statements.

ESG / Sustainable investing
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