YMAT (J-Star Holding Co) Insider Ownership: 4.27 % (As of Aug. 13, 2026)

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YMAT J-Star Holding Co Ltd YMAT
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What is J-Star Holding Co Insider Ownership?

J-Star Holding Co YMAT -0.76% 11 Insider Ownership is 4.27 % as of Aug. 13, 2026. GuruFocus rates YMAT with a GF Score™ of 11/100. The stock has 8 warning signs investors should review.

Insider ownership is the percentage of shares that are owned by company insiders relative to the total shares outstanding. As of today, J-Star Holding Co's insider ownership is 4.27%.

Institutional Ownership is the percentage of shares that are owned by institutions out of the total shares outstanding. As of today, J-Star Holding Co's Institutional Ownership is 0.18%.

Float Percentage Of Total Shares Outstanding is the percentage of float shares relative to the total shares outstanding. As of today, J-Star Holding Co's Float Percentage Of Total Shares Outstanding is 64.81%.

J-Star Holding Co Insider Ownership Historical Data

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The historical data trend for J-Star Holding Co's Insider Ownership can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

J-Star Holding Co Insider Ownership Chart

J-Star Holding Co Historical Data

The historical data trend for J-Star Holding Co can be seen below:

2026-05-31 2026-06-30 2026-07-31
Insider Ownership 0.96 0.96 4.27
YMAT
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J-Star Holding Co Ltd YMAT
Insider Ownership is just one metric. See GF Score™, valuation, warning signs, and more.
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J-Star Holding Co Insider Ownership Calculation

The percentage of shares that are owned by company insiders relative to the total shares outstanding.

Frequently Asked Questions Learn more about Insider Ownership →
What does a Insider Ownership of 4.27 % mean?
J-Star Holding Co (YMAT) has a Insider Ownership of 4.27 % as of Aug. 13, 2026. Insider ownership equals the percent of shares owned by company insiders relative to total shares. View historical data on J-Star Holding Co and its competitors.
Is J-Star Holding Co's Insider Ownership too high?
J-Star Holding Co's current Insider Ownership is 4.27 %. Overall, J-Star Holding Co has a GF Score™ of 11/100, reflecting its overall financial health beyond just this single metric.
How does J-Star Holding Co's Insider Ownership compare to SNES and GLGI?
J-Star Holding Co's Insider Ownership of 4.27 % can be compared against companies in the Chemicals industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Insider Ownership for a Chemicals company?
A good Insider Ownership depends on the Chemicals industry context. However, Insider Ownership should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Insider Ownership mean?
A high Insider Ownership can signal that a stock is expensive relative to its fundamentals. Insider ownership equals the percent of shares owned by company insiders relative to total shares. View historical data on J-Star Holding Co and its competitors. J-Star Holding Co's current Insider Ownership is 4.27 %. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is J-Star Holding Co stock overvalued right now?
J-Star Holding Co (YMAT) has a current Insider Ownership of 4.27 %. The current Insider Ownership is 4.27 %. J-Star Holding Co's overall GF Score™ is 11/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Insider Ownership calculated?
Insider Ownership is calculated from a company's financial statements. For J-Star Holding Co (YMAT), the current Insider Ownership is 4.27 % as of Aug. 13, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

J-Star Holding Co Business Description

Address No. 633, Section 2, Taiwan Boulevard, 7th Floor-1, Xitun District, Taichung, TWN, 407
J-Star Holding Co Ltd is engaged in the research, development, and manufacturing of carbon fiber for a wide variety-of-products including carbon bicycles, carbon rackets, automotive parts, outdoor sports gears, and healthcare products. The company has five segments: Bicycle frame, Racket, Crank, Service provision, and Others. The majority of its revenue is generated from the Bicycle frame segment. Geographically, the company operates in Taiwan, China, and other regions.
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