Yacht · No AIS signal
Starburst IV7
No position reported yet.
Ownership reported in the press, not confirmed from a registry.
Marijke Mars
American billionaire heiress
Marijke Elizabeth Mars (born 1965) is an American billionaire heiress and businesswoman. In March 2018 Forbes estimated her net worth to be $5.9 billion.2
From Wikipedia’s article on Marijke Mars (this version), CC BY-SA 4.0.
Born 1965.1
Net worth $1.0B (as of Jun 25, 2021).8 Richest people
About
She was ranked as the 30th-richest woman in the world, a position shared with her three sisters. As of February 2026, Forbes estimated her net worth to be $11.4 billion.
Marijke Mars is a fourth generation member of the Mars family. Her father was the late Forrest Mars Jr. (1931–2016). She has three sisters: Pamela Mars-Wright, Valerie Mars and Victoria B. Mars. She inherited about an 8 percent stake on Mars Inc. in 2016, which made her a billionaire. According to Forbes, her shares were valued at $5.9 billion (March 2018).
She graduated (B.A./B.Sc.) from Duke University. After her graduation she worked as a regional manager for Kal Kan Foods, one of Mars Inc.'s pet food companies. Currently, she works at Mars Food. She married Stephen J. Doyle in 1991, but divorced in 2000.
From Wikipedia’s article on Marijke Mars, shared under CC BY-SA 4.0.2
Early life and education
Career
Occupation: heiress.5
Personal life
Planes and yachts
A position is the aircraft’s or vessel’s, not the person’s. Being on board isn’t confirmed.
Positions, trips and icons: CelebYachts, from public AIS broadcasts. Maps: Esri.
Links
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataMarijke Mars on Wikidata
- 2WikipediaMarijke Mars on Wikipedia
- 3
- 4Wikidataeducation, as reported
- 5
- 6
- 7CelebYachtsStarburst IV on CelebYachts
- 8WikidataNet worth