CHICAGO, IL, March 03, 2026 /24-7PressRelease/ -- Guyna G. Johnson has been selected for inclusion in Marquis Who's Who. As in all Marquis Who's Who biographical volumes, individuals profiled are selected on the basis of current reference value. Factors such as position, noteworthy accomplishments, visibility, and prominence in a field are all taken into account during the selection process.

Ms. Johnson has established herself as a leading authority in structured finance, fixed-income mutual funds and executive leadership, earning recognition for her expertise and impact on the global financial landscape. Since 2020, she has served as managing director and head of global fund ratings at S&P Global, overseeing a market of more than $7 trillion in globally rated fixed-income portfolios of assets. Her responsibilities span North America, Europe, Asia Pacific, South Africa and Australia, where her team delivers independent opinions addressing various risks associated with a broad spectrum of investment vehicles. In this capacity, Ms. Johnson leads global analytical strategy, ensures disciplined application of criteria, fosters professional development among her staff, maintains a strong analytical presence in the market, strengthens quality and governance frameworks, and advances innovation aligned with S&P Global's' strategic priorities.

A defining accomplishment of Ms. Johnson's tenure has been leading the expansion of analytical coverage into emerging areas of industry, including tokenization and private credit. Her leadership has reinforced transparency, comparability, and analytical rigor across evolving areas of global finance.

Previously, Ms. Johnson served as Director and Analytical Lead in the Global Mutual Funds Ratings Group from 2007 to 2020, overseeing the evaluation of global mutual funds and reinforcing consistent global analytical standards. She also served a prestigious ex patriate assignment in London, covering European and Asian fixed income mutual funds. enhancing quality assurance processes and improving the accuracy and reliability of ratings.

From 2013 to 2015, at S&P Global, Ms. Johnson served as Analytical Practice Head for Financial Services within Global Regulatory Affairs, and as Group Project Manager for the Quality Review Board, leading initiatives that enhanced regulatory engagement, internal controls, and analytical consistency across the enterprise and practice, respectively.

Earlier in her career, from 2003 to 2007, Ms. Johnson held the position of Analytical Manager of U.S. Tax-Exempt Structured Finance ratings, directing a team responsible for assessing complex municipal and structured finance transactions.

Ms. Johnson's academic background has been instrumental in her professional accomplishments. She earned a Juris Doctor from The Ohio State University Moritz College of Law and graduated cum laude with a Bachelor of Science in mathematics from Jackson State University. Her combined legal and quantitative training shaped her disciplined approach to fiduciary oversight, regulatory governance, and enterprise risk management.

She attributes her achievements to remaining grounded and focused on outcomes that serve both the markets and communities. Ms. Johnson remains committed to creating an ecosystem that advances financial literacy, expands access to capital and education, and supports higher education institutions that strengthen economic mobility.

Her commitment to civic engagement is reflected in her extensive service to educational and nonprofit organizations. Ms. Johnson previously served as Board Chair of the Jackson State University Development Foundation, Inc. Her term concluded following years of volunteer leadership during which she helped strengthen governance practices, reinforce fiduciary oversight, and enhance institutional advancement efforts. Although her board service formally concluded, she remains actively committed to the students at Jackson State University, public service, educational access, and financial literacy initiatives.

Ms. Johnson also served as a board member of Girls in the Game from 2004 to 2011 and has supported civic engagement efforts in Chicago and nationally. She is an active member of Delta Sigma Theta Sorority, Incorporated, a public service organization. Her volunteer service was recognized with a President Joseph R. Biden Lifetime Achievement Award for Volunteer Service.

Born in Clarksdale, Ms. Johnson enjoys fundraising, photography, and international travel. Looking ahead, she intends to continue contributing to innovation within the global fixed income market, community advancement initiatives, and expand her service through corporate board leadership.

About Marquis Who's Who®:
Since 1899, when A. N. Marquis printed the First Edition of Who's Who in America®, Marquis Who's Who® has chronicled the lives of the most accomplished individuals and innovators from every significant field of endeavor, including politics, business, medicine, law, education, art, religion and entertainment. Who's Who in America® remains an essential biographical source for thousands of researchers, journalists, librarians and executive search firms around the world. The suite of Marquis® publications can be viewed at the official Marquis Who's Who® website, www.marquiswhoswho.com.

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