CALRIVAN WEALTH MANAGEMENT

CALRIVAN WEALTH MANAGEMENT

Calrivan Wealth Management is the family office entity associated with John Calamos Sr., the founder of Calamos Investments, a global asset management firm headquartered in Naperville, Illinois. The Calamos fortune originates from the firm he founded in 1977, which specializes in convertible bonds and alternative strategies and has traded on the NASDAQ since 2004. John Calamos Sr. remains a significant shareholder, and Calrivan likely manages the proceeds of that concentrated public-company wealth alongside diversified private investments. The family office is known to invest across private equity, venture capital, and real estate. Calamos has a documented interest in early-stage technology companies, often co-investing alongside institutional venture funds. The geographic footprint spans the United States, with a concentration in the Chicago metropolitan area where both Calamos Investments and the family's personal holdings are anchored. The family has also been an active participant in the Chicago startup ecosystem, placing capital in local tech ventures. Exact deployment figures and team size are not publicly disclosed, but the family's wealth is closely tied to Calamos Investments' market capitalization and dividend stream. John Calamos Sr. chairs the firm, while the family office operates with a lean structure typical of single-family offices that leverage existing relationships from the operating business. No dedicated website or public listing for Calrivan Wealth Management has been identified, consistent with a low-profile single-family office posture. The office's structural differentiator is its symbiosis with a publicly traded asset manager. This gives the family office access to institutional deal flow, co-investment relationships, and investment talent cultivated through the operating company — a hybrid architecture that blends the family's long-duration capital with the sourcing advantages of a regulated, scaled investment platform.