Gary Heminger and Kathy Warden are two well-known American business executives whose careers developed in very different industries. Heminger became widely recognized through Marathon Petroleum, while Warden rose to lead Northrop Grumman.
Their names may appear together in searches, but there is no reliable evidence that they are married, related, or direct business partners. Their connection is mainly through the broader world of U.S. corporate leadership.
Profile Bio
| Detail | Gary Heminger | Kathy Warden |
|---|---|---|
| Full Name | Gary R. Heminger | Kathy J. Warden |
| Profession | Business Executive | Business Executive |
| Age | Approx. 72–73 in 2026 | 54 in 2026 filings |
| Nationality | American | American |
| Best Known For | Former Marathon Petroleum Chairman & CEO | Chair, CEO & President of Northrop Grumman |
| Main Industry | Petroleum & Energy | Aerospace & Defense |
| Education | Tiffin University; University of Dayton | James Madison University; George Washington University |
| Height | No reliable official figure published | No reliable official figure published |
| Net Worth | No authoritative public figure | No authoritative public figure |
| Relationship Status | Married to Jane Heminger | Keeps personal family life private |
| Career Status | Retired from Marathon Petroleum leadership | Active Northrop Grumman CEO |
| Social Media | Limited public personal presence | Professional presence, including LinkedIn |
Who Is Gary Heminger?
Gary R. Heminger is an American business executive best known for his long career with Marathon-related companies.
He joined Marathon in 1975 and worked across finance, administration, transportation, marketing, business development, and senior management before eventually becoming one of the company’s top executives.
Heminger became president and CEO of Marathon Petroleum in 2011 and later served as chairman of the board.
Who Is Kathy Warden?
Kathy J. Warden is an American business executive who serves as Chair, CEO and President of Northrop Grumman.
She became CEO and president in January 2019 and chair later that year. Her background includes technology, cybersecurity, business strategy, operations, and aerospace and defense.
Before reaching the top position, Warden led several important Northrop Grumman business units.
Their Corporate Connection
The main connection between Gary Heminger and Kathy Warden is their status as senior leaders in major American corporations.
Heminger built his career in petroleum refining and energy, while Warden works in aerospace, defense, and advanced technology.
Available records do not show that they operated a company together, worked as executives for the same employer, or maintained a direct commercial partnership.
Gary Heminger’s Career
Heminger spent roughly 45 years with Marathon-related businesses.
His career included positions in finance, pipeline operations, marketing, transportation, and corporate management. This long internal career gave him deep knowledge of Marathon’s business before he became CEO.
During his leadership, Marathon Petroleum expanded significantly and completed major corporate transactions, including the acquisition of Andeavor.
Kathy Warden’s Career
Warden joined Northrop Grumman in 2008 after working in several technology-focused businesses.
Her earlier career included positions at General Dynamics, Veridian Corporation, General Electric, and an internet venture.
At Northrop Grumman, she led Information Systems and Mission Systems before becoming president and chief operating officer. She later became CEO, president, and chair.
Education
Gary Heminger earned a bachelor’s degree in accounting from Tiffin University and later completed an MBA at the University of Dayton.
He also attended the Advanced Management Program at the Wharton School.
Kathy Warden earned a bachelor’s degree from James Madison University and an MBA from George Washington University.
Their education supported two very different professional paths.
Leadership Style
Heminger’s leadership background was shaped by long-term experience in energy operations, financial management, and large-scale corporate expansion.
Warden’s leadership is more strongly connected to technology, cybersecurity, defense programs, and strategic investment.
Both managed large organizations, but the challenges they faced were different because petroleum and aerospace operate under very different market, regulatory, and technical conditions.
Gary Heminger Age
Gary Heminger was listed as 71 years old in a 2025 corporate proxy filing.
That suggests he was born around 1953 or 1954, depending on his exact birthday.
Because his full birth date is not prominently published in reliable corporate sources, it is safer to describe his 2026 age as approximately 72 to 73 years old.
Kathy Warden Age
Northrop Grumman’s 2026 filings list Kathy Warden as 54 years old.
Her exact birth date is not widely published in official company biographies.
Using the age reported in SEC filings is more reliable than depending on biography websites that may repeat unsourced birth dates.
Gary Heminger Family
Gary Heminger keeps much of his personal life private.
Reliable institutional biographies identify Jane Heminger as his wife. The couple has been associated with Findlay, Ohio.
Details about his children, siblings, and other relatives are much less widely documented. For that reason, unverified family claims found on biography websites should be treated carefully.
Kathy Warden Family
Kathy Warden also maintains a relatively private family life.
Northrop Grumman’s official biography mainly focuses on her education, executive career, board roles, and industry experience.
Reliable public sources provide limited information about her spouse, children, parents, or siblings. A responsible profile should avoid filling those gaps with unsupported claims.
Are They Married or Related?
There is no credible evidence that Gary Heminger and Kathy Warden are married to each other.
Heminger is publicly identified as married to Jane Heminger.
There is also no reliable evidence that Gary Heminger and Kathy Warden are siblings, relatives, or romantic partners.
Their names are better understood as belonging to two influential American executives with separate careers.
Gary Heminger Net Worth
Gary Heminger’s exact personal net worth has not been publicly confirmed.
Some websites publish estimates, but executive compensation alone cannot reveal total wealth.
Marathon Petroleum’s filings show that Heminger received significant compensation during his time as CEO. However, salary, bonuses, stock awards, pensions, investments, debts, and private assets all affect true net worth.
Kathy Warden Net Worth
Kathy Warden’s exact net worth is also not available from an authoritative public source.
Her executive compensation is publicly reported because Northrop Grumman is a listed company.
For 2025, her reported total compensation exceeded $25 million, including salary, stock awards, and incentive payments.
That figure shows the scale of her earnings but should not be presented as her personal net worth.
Compensation vs. Net Worth
Executive compensation and net worth are not the same thing.
Compensation can include salary, bonuses, stock awards, long-term incentives, and retirement benefits.
Net worth measures total assets minus debts.
Stock awards may also have vesting rules and performance conditions, which means the reported value may differ from the amount an executive ultimately receives.
Height and Appearance
There is no reliable official height or weight publicly listed for either Gary Heminger or Kathy Warden.
Precise measurements found on some biography websites are difficult to verify.
Both maintain a professional corporate appearance in public events, interviews, conferences, and company photographs, but physical details are a minor part of their public identities.
Lifestyle
Neither Heminger nor Warden is known for a celebrity-style public lifestyle.
Heminger has generally maintained a low profile outside corporate and institutional activities.
Warden remains more visible because she continues to lead Northrop Grumman. Her public appearances usually focus on defense technology, business strategy, manufacturing, innovation, and national security rather than personal luxury or private lifestyle.
Social Media
Kathy Warden has a visible professional presence on LinkedIn, where she shares updates connected to Northrop Grumman, leadership, technology, employees, and national security.
Gary Heminger has a much smaller personal social-media presence.
Most reliable information about Heminger now comes from corporate filings, institutional biographies, board profiles, and historical Marathon Petroleum materials.
Board Roles
Both executives have held important positions beyond their primary companies.
Warden has served on the board of Merck & Co. and has participated in organizations such as the Business Roundtable and Aerospace Industries Association.
Heminger has also served in business, educational, and civic board roles, including involvement with major Ohio institutions and corporations.
Career Status in 2026
Gary Heminger is best known today as the former chairman and CEO of Marathon Petroleum.
He stepped away from the company’s senior leadership in 2020 after roughly 45 years with Marathon-related businesses.
Kathy Warden remains active as Chair, CEO and President of Northrop Grumman, continuing to lead one of America’s largest aerospace and defense companies.
Interesting Facts
Heminger built nearly his entire professional career within the Marathon organization, which is unusual among major corporate executives.
Warden joined Northrop Grumman in 2008 and reached the CEO position about eleven years later.
She also helped lead the integration of Orbital ATK, while Heminger oversaw Marathon Petroleum during a major period of expansion.
Final Thoughts
Gary Heminger and Kathy Warden represent two different paths to senior corporate leadership.
Heminger built his career in petroleum, refining, transportation, and energy management, while Warden developed expertise in technology, cybersecurity, aerospace, and defense.
Their names may be searched together, but there is no verified personal, family, or direct business relationship between them. Their real connection is their shared prominence within American corporate leadership.
Both also demonstrate why executive salary and personal net worth should be treated separately. Reliable company records provide strong information about their careers and compensation, but many personal details remain private.
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FAQs
Who are Gary Heminger and Kathy Warden?
Gary Heminger is the former chairman and CEO of Marathon Petroleum, while Kathy Warden is the Chair, CEO and President of Northrop Grumman. Both are prominent American business executives, but they built their careers in different industries.
Are Gary Heminger and Kathy Warden married?
No. There is no credible evidence that Gary Heminger and Kathy Warden are married or romantically connected. Heminger is publicly identified as married to Jane Heminger.
What is the connection between Gary Heminger and Kathy Warden?
Their connection is mainly professional. Both have operated within major U.S. corporate leadership circles, but there is no verified evidence that they worked for the same company or formed a direct business partnership.
What is Kathy Warden’s net worth?
Kathy Warden’s exact personal net worth is not publicly confirmed. However, her executive compensation is well documented, including more than $25 million in reported total compensation for 2025.
What is Gary Heminger’s net worth?
Gary Heminger’s exact net worth is also not publicly verified. His former Marathon Petroleum compensation and executive career indicate substantial earnings, but compensation should not be treated as the same as personal net worth.
