RTARF (Restar) Insider Ownership: 0.00 % (As of Aug. 04, 2026)

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Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

RTARF Restar Corp RTARF
85 GF Score
Price $14.30
GF Value $13.71
! 1 Warning Sign
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What is Restar Insider Ownership?

Restar RTARF 85 Insider Ownership is 0.00 % as of Aug. 04, 2026. GuruFocus rates RTARF with a GF Score™ of 85/100 and a GF Value™ of $13.71. The stock has 1 warning sign 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, Restar's insider ownership is 0.00%.

Institutional Ownership is the percentage of shares that are owned by institutions out of the total shares outstanding. As of today, Restar's Institutional Ownership is 11.38%.

Float Percentage Of Total Shares Outstanding is the percentage of float shares relative to the total shares outstanding. As of today, Restar's Float Percentage Of Total Shares Outstanding is 0.00%.

Restar Insider Ownership Historical Data

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The historical data trend for Restar'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.

Restar Insider Ownership Chart

Restar Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Insider Ownership
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Restar Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Insider Ownership Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00
RTARF
85GF Score
Restar Corp RTARF
Insider Ownership is just one metric. See GF Score™, valuation, warning signs, and more.
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Restar 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 0.00 % mean?
Restar (RTARF) has a Insider Ownership of 0.00 % as of Aug. 04, 2026. Insider ownership equals the percent of shares owned by company insiders relative to total shares. View historical data on Restar and its competitors.
Is Restar's Insider Ownership too high?
Restar's current Insider Ownership is 0.00 %. Overall, Restar has a GF Score™ of 85/100, reflecting its overall financial health beyond just this single metric.
How does Restar's Insider Ownership compare to NVDA and AVGO?
Restar's Insider Ownership of 0.00 % can be compared against companies in the Semiconductors 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 Semiconductors company?
A good Insider Ownership depends on the Semiconductors 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 Restar and its competitors. Restar's current Insider Ownership is 0.00 %. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Restar stock overvalued right now?
Restar (RTARF) has a current Insider Ownership of 0.00 %. The stock's GF Value™ is $13.71, compared to a current price of $14.30 — trading 4.3% above its estimated fair value. The current Insider Ownership is 0.00 %. Restar's overall GF Score™ is 85/100 with 1 warning sign 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 Restar (RTARF), the current Insider Ownership is 0.00 % as of Aug. 04, 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.

Is Restar (RTARF) Overvalued in 2026?

Based on GuruFocus' analysis, Restar stock appears to be overvalued. The current stock price of $14.30 is trading 4.3% above its estimated GF Value™ of $13.71.

Key valuation signals for RTARF:

  • Insider Ownership: 0.00 %
  • GF Value™: $13.71 vs. price of $14.30 (4.3% above fair value)
  • GF Score™: 85/100 with 1 warning sign

No single metric tells the full story. See the RTARF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Restar Business Description

Other Exchanges 3156:Japan
Address Lester Building, 10-9 Konan 2-chome, Minato-ku, Tokyo, JPN, 108-0075
Restar Corp manufactures and distributes semiconductors and electronic components. The company offers semiconductors/modules, optical components, displays, industrial lasers, sensors, measuring instruments/filters, batteries, quartz crystal devices, adhesive materials/optical materials, and speakers/receivers. It also provides electronic manufacturing services.
85GF Score

Get the complete analysis for RTARF

Insider Ownership is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$14.30
Price
$13.71
GF Value