James R. Leininger’s net worth over time
Only dates with a published estimate are shown. Nothing is filled in between. Tap or hover a bar to see the source.
See the numbers as a table
| Date | Estimate | Source |
| 2019 | $1.4 billion | Forbes World's Billionaires List 2019 |
| 2020 | $1.5 billion | Forbes World's Billionaires List 2020 |
| 2021 | $1.5 billion | Forbes World's Billionaires List 2021 |
| 2022 | $1.7 billion | Forbes World's Billionaires List 2022 |
| 2023 | $1.7 billion | Forbes World's Billionaires List 2023 |
| 2024 | $1.9 billion | Forbes World's Billionaires List 2024 |
| 2025 | $1.9 billion | Forbes World's Billionaires List 2025 |
| 2026 | $1.9 billion | Forbes World's Billionaires List 2026 |
| Oct 2026 | $1.9 billion | Forbes Real-Time Billionaires · Forbes real-time estimate |
Where the money comes from
These are the main sources of wealth named in the reporting we cite. No published source breaks the total into exact amounts, so we do not show percentages.
James R. Leininger’s fortune in real-life terms
Based on the Forbes Real-Time Billionaires estimate above. Median full-time U.S. pay is $65,416 a year ($1,258 a week, BLS, Q2 2026), before taxes. Typical (median) U.S. family net worth is $216,100 (Federal Reserve, 2025 Survey of Consumer Finances).
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James R. Leininger has an estimated net worth of $1.9 billion, according to Forbes Real-Time Billionaires, James R. Leininger profile (figures as of October 20, 2026). That is up from $1.4 billion in 2019.
James R. Leininger is an American physician and businessman who built his name in healthcare. After teaching at the University of Texas Health Science Center in 1972 and 1973, he moved deeper into business. In 1976, he started Kinetic Concepts, or KCI, in a one-bedroom apartment. The company focused on wound care and grew into a global medical technology business. He later became chairman emeritus and remained closely tied to the company he launched.
Most of Leininger’s wealth comes from the medical products field. Forbes says he made his fortune by founding KCI, and that he was the largest shareholder when Apax Partners led a $6.3 billion acquisition of the company in 2012. He also built MedCare Investment Funds, which manages $1 billion in assets. Beyond that, he co-founded ATX Technologies in 1994 and Renal Care Group in 1995, and he holds a small stake in the San Antonio Spurs.
How James R. Leininger makes money
Leininger’s main source of wealth is Kinetic Concepts, the wound care company he founded in 1976. He began it in a one-bedroom apartment, then grew it into a major medical technology business. That startup became the center of his fortune. Forbes places him in healthcare and says his wealth comes from medical products. His background as a physician also fits with the path he took into medical devices and related healthcare companies.
He also expanded beyond KCI. In 1991, he founded MedCare Investment Funds, which Forbes says manages $1 billion in assets. His other business work includes co-founding ATX Technologies in 1994 and Renal Care Group in 1995. He has also invested in other areas and owns stakes in several businesses. Forbes notes that he has a small stake in the San Antonio Spurs, adding another asset alongside his healthcare holdings.
Forbes net worth and key money moments
A major turning point came in 2012, when private equity firm Apax Partners led a $6.3 billion acquisition of KCI. Forbes says Leininger was the largest shareholder at the time, which helps explain why the deal mattered so much to his finances. By then, he had already spent decades building the company and adding investments through MedCare. That mix of an operating business and an investment firm shaped the wealth profile tied to his name.
Forbes estimated his net worth at $1.4 billion in 2019. On Forbes' real-time billionaires tracker, it stood at $1.9 billion as of October 20, 2026. The core drivers named by Forbes are still the same: the medical products fortune tied to KCI and investments made through MedCare Investment Funds. His portfolio also includes the small Spurs stake, but healthcare remains the main engine behind his billionaire status.
Career and money timeline
- 1972
He taught at the University of Texas Health Science Center in 1972.
- 1976
He founded Kinetic Concepts in a one-bedroom apartment.
- 1989
He founded the Texas Public Policy Foundation.
- 1991
He started MedCare Investment Funds.
- 1995
He co-founded Renal Care Group.
- 2012
KCI was acquired in a $6.3 billion deal led by Apax Partners.
James R. Leininger net worth FAQ
What is James R. Leininger's net worth?
James R. Leininger's net worth is an estimated $1.9 billion, according to Forbes Real-Time Billionaires, James R. Leininger profile (October 20, 2026). It is an estimate, not an official figure.
How did James R. Leininger get so rich?
The main sources named in the reporting we cite are: Medical products.
Is James R. Leininger a billionaire?
Yes. Forbes Real-Time Billionaires estimates James R. Leininger is worth $1.9 billion.
How has James R. Leininger's net worth changed?
The earliest published estimate we track is $1.4 billion (2019, Forbes World's Billionaires List 2019). The latest is $1.9 billion (October 20, 2026).
What company made James R. Leininger rich?
Forbes says he made his fortune by founding Kinetic Concepts, a medical devices company focused on wound care. It became the core source of his wealth.
What is James R. Leininger’s net worth?
Forbes' real-time billionaires tracker estimated his net worth at $1.9 billion as of October 20, 2026.
Sources
- Forbes Real-Time Billionaires, James R. Leininger profile (October 20, 2026)
- Forbes World's Billionaires List 2019, James R. Leininger profile (March 5, 2019)
- Forbes World's Billionaires List 2020, James R. Leininger profile (April 7, 2020)
- Forbes World's Billionaires List 2021, James R. Leininger profile (April 6, 2021)
- Forbes World's Billionaires List 2022, James R. Leininger profile (April 5, 2022)
- Forbes World's Billionaires List 2023, James R. Leininger profile (April 4, 2023)
- Forbes World's Billionaires List 2024, James R. Leininger profile (April 2, 2024)
- Forbes World's Billionaires List 2025, James R. Leininger profile (April 2025)
- Forbes World's Billionaires List 2026, James R. Leininger profile (March 10, 2026)
- U.S. Bureau of Labor Statistics, Usual Weekly Earnings (Q2 2026) (July 2026)
- Federal Reserve, 2025 Survey of Consumer Finances (median family net worth, Table 4) (October 2026)
- Background facts: Wikipedia, James R. Leininger (accessed October 23, 2026). Used for career facts only, never for figures.
Every number on this page is an estimate published by the source named next to it. We never fill in years with our own guesses. How we handle estimates.