American Beacon Partners Names John Linnehan Chief Financial Officer

Growth-focused executive brings more than 30 years of C-suite leadership experience

IRVING, Texas–(BUSINESS WIRE)–American Beacon Partners (“American Beacon”), a diversified asset management platform with more than 30 affiliated and independent manager partnerships, delivering enduring value through traditional and alternative solutions, announced today that it has appointed John Linnehan as Chief Financial Officer. In this role, Linnehan will oversee American Beacon’s financial health, strategic planning, and corporate initiatives.

Linnehan brings more than 30 years of C-suite leadership experience to American Beacon. He will be responsible for directing the company’s financial activities including treasury, accounting, tax, financial planning and analysis, risk management, reporting, and capital management to support sustainable growth.

Prior to American Beacon, Linnehan served as CFO at Aflac Global Investments, a $100-billion- insurance investment firm where he was responsible for finance, operations, compliance and risk management. Prior to Aflac, Linnehan was CFO at Guggenheim Investments, supporting their growth trajectory from $54 billion to $225 billion, and SGI Rydex, where he restructured the U.S. retail investment platform.

Linnehan served as CEO of 21X U.S, a digital asset exchange for tokenized finance. He was the Founder and Head of Strategic Relationships at Digital Investment Securities, a platform designed to streamline investing in real world assets, equities, fixed income, and funds through advanced tokenization and digital infrastructure.

Previously, Linnehan co-founded Sustainable Leaders Investment Management, where he helped build an ESG multi-boutique investment platform leveraging proprietary research to develop high active-share investments and indexes. He was a Founder and President at Promethos Capital, where he was responsible for managing the distribution, marketing, compliance, and operations for the firm.

Greg Stumm, President and CEO of American Beacon Partners, said: “John is a highly respected financial executive with a deep understanding of our industry and the operational demands of a growing investment firm. He brings a mix of strategic insight, decades of financial leadership in both the ‘TradFi’ and ‘DeFi’ worlds, and a vast amount of knowledge – all of which makes him an excellent fit as we continue to grow and evolve as an organization.”

John Linnehan said, “American Beacon has built a distinctive platform rooted in high‑quality partnerships, disciplined execution, and a clear strategic vision. I am thrilled to be joining such a well‑respected investment firm and look forward to partnering with the leadership team to support strategic growth, enhance operational and financial capabilities, and help drive long‑term value for the organization and its partners.”

Based in Boston, Massachusetts, Linnehan earned a Bachelor of Science in Finance and Strategic Management from Boston College and an MBA in Finance and Accounting from Babson F.W. Olin Graduate School of Business.

For more information, visit the American Beacon site: www.ambeacon.com.

About American Beacon Partners

American Beacon Partners, formerly known as Resolute Investment Managers, is a diversified asset management platform with affiliated and independent partnerships with more than 30 investment managers. Drawing on approximately 40 years of investment expertise, innovation and adaptability, American Beacon Partners delivers enduring value through traditional and alternative solutions designed to meet investors’ evolving needs.

Driven by future value creation, American Beacon Partners’ unique platform delivers strategic benefits through a full suite of distribution, operational and administrative services that may be leveraged by its affiliates. We offer three customizable partnership models tailored for the U.S. wealth and retirement markets. For affiliated partners, we make strategic investments in boutique asset managers to enhance distribution and administrative support functions. For strategic distribution partners, we help investment managers leverage our distribution expertise to achieve greater scale.

For sub-advisors to American Beacon Advisors, we assist institutional-caliber asset managers who are seeking to expand their strategies to retail markets through existing funds or new fund launches. With roots as an unaffiliated sub-advised mutual fund sponsor, the majority of our partnerships are with asset managers who invest and operate with full autonomy and independence. American Beacon Partners’ affiliates include American Beacon Advisors, Inc.; National Investment Services of America, LLC; RSW Investments Holdings LLC; Shapiro Capital Management LLC; SSI Investment Management LLC; and Resolute Investment Distributors, Inc. As of September 30, 2025, American Beacon Partners’ affiliated partners had $82.9 billion in assets under management.

For more information, visit www.ambeacon.com.

©2026 American Beacon Partners. All rights reserved.

Contacts

Media Contact:
Rob Jesselson
Craft & Capital
rob@craftandcapital.com