Bloomberg Billionaires Index

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#433 Ronda Stryker $4.46B

Random fact: First worked as an elementary school teacher in Michigan.

Overview

Stryker is the largest individual shareholder in Stryker Corp, a medical equipment manufacturer with revenue of $11.3 billion in 2016. She owns more than 6 percent of the company and siblings own about another 9 percent. Her husband's asset management company, Greenleaf Trust, manages additional shares for its clients.

As of Sept. 21, 2017:
Last change -$48.0M (-1.1%)
YTD change +$377M (+9.3%)
Industry Health Care
Biggest asset SYK US Equity
Citizenship United States
Age 62
Wealth Inherited
View net worth over:   Max 1 year 1 quarter 1 month 1 week

Relative Value

Ronda Stryker's net worth of $4.46B can buy ...

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troy ounces of gold
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of the GDP of the United States
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of the total wealth of the 500 richest people in the world
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of the top 100 U.S. college endowments
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of U.S. existing home sales
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times the median U.S. household income

Latest News

Net Worth Summary

Cash
Private asset
Public asset
Misc. liabilities
Confidence rating:

The majority of Stryker's fortune is derived from her inheritance of one-third of a family trust that held shares of Stryker Corp, a publicly traded medical device manufacturer founded by her grandfather.

Her two siblings, Jon and Patricia, also inherited one-third each of the trust, established by their grandfather, according to a Securities and Exchange Commission filing from 1998. They have since sold more shares than Ronda leaving her, with an almost 6.5 percent stake, as the largest individual shareholder in the company.

She owns almost 24 million shares of Stryker, according to a March 2017 filing and has sold almost $900 million of Stryker stock since 1993, according to data compiled by Bloomberg.

The value of her cash investments is based on an analysis of dividends, taxes, charitable donations and market performance.

Stryker is married to William Johnston, chairman of Greenleaf Trust, an investment management company which is also a shareholder in Stryker Corp. Shares owned in Johnston's name are included in her net worth calculation. Shares held on behalf of non-family Greenleaf clients aren't included in the analysis.

A family representative did not respond to requests for comment.

Biography

Birthdate: 1954
Family: Married, 2 children
Education: 1982, Western Michigan University, Master's Degree 1976, University of Northern Colorado Foundation Inc, Bachelor's Degree

Ronda Stryker is the granddaughter of Dr. Homer Stryker, an orthopaedic surgeon and founder of medical technology company Stryker Corporation. Dr. Stryker was born in Michigan in 1894 and received his medical degree from the University of Michigan in 1925. He started his practice in Kalamazoo, Michigan and used a room in his basement for research and development of his first turning frame for the repositioning of incapacitated hospital patients.

He began selling his inventions in January 1941, as WWII lifted demand for medical products. He incorporated his manufacturing business, the Orthopedic Frame Company, five years later. His investions included a turning frame, cast cutter, surgical traction device and cast walking heel. The cast cutter was unique because it's oscillating saw cut hard materials, such as casts, but not soft ones, like human tissues.

His son Lee, Ronda's father, took over the company in the early 1950s. Lee died when a plane he was piloting crashed in Wyoming in 1976. His wife, Mary Jane, and two other people died in the crash. Ronda and her siblings, Patricia and Jon, were not on the plane. Homer died in 1980, at age 85.

Ronda Stryker has served on the Stryker board for almost 30 years. She has a master's degree from Western Michigan University and is a trustee at Kalamazoo College. She lives in Michigan with her husband of 30 years and together they are involved in philanthropic activities with the Ronda E. Stryker and William D. Johnston Foundation.

Milestones
  • 1946 Grandfather Homer Stryker incorporates the Orthopedic Frame Co.
  • 1954 Ronda Stryker is born to Lee and Mary Jane Stryker.
  • 1976 Father died when a plane he was piloting crashed.
  • 1979 Stryker Corporation is publicly listed on the NASDAQ.
  • 1980 Grandfather Homer Stryker dies.
  • 1983 Marries William D. Johnston.
  • 1998 Stryker Corp. acquires Howmedica, more than doubling its size.
  • 2013 Receives YMCA Lifetime Woman of Achievement award.