Turkiye Sise ve Cam Fabrikalari AS (IST:SISE) Insider Ownership: 0.00 % (As of Aug. 02, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
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.

IST:SISE Turkiye Sise ve Cam Fabrikalari AS IST:SISE
92 GF Score
Price ₺41.74
GF Value ₺62.23
Valuation Possible Value Trap
! 8 Warning Signs
View Full Analysis

What is Turkiye Sise ve Cam Fabrikalari AS Insider Ownership?

Turkiye Sise ve Cam Fabrikalari AS IST:SISE +0.97% 92 Insider Ownership is 0.00 % as of Aug. 02, 2026. GuruFocus rates IST:SISE with a GF Score™ of 92/100 and a GF Value™ of ₺62.23 (Possible Value Trap). 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, Turkiye Sise ve Cam Fabrikalari AS'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, Turkiye Sise ve Cam Fabrikalari AS's Institutional Ownership is 4.54%.

Float Percentage Of Total Shares Outstanding is the percentage of float shares relative to the total shares outstanding. As of today, Turkiye Sise ve Cam Fabrikalari AS's Float Percentage Of Total Shares Outstanding is 0.00%.

Turkiye Sise ve Cam Fabrikalari AS Insider Ownership Historical Data

* Premium members only.

The historical data trend for Turkiye Sise ve Cam Fabrikalari AS'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.

Turkiye Sise ve Cam Fabrikalari AS Insider Ownership Chart

Turkiye Sise ve Cam Fabrikalari AS Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Insider Ownership
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Turkiye Sise ve Cam Fabrikalari AS 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
IST:SISE
92GF Score
Turkiye Sise ve Cam Fabrikalari AS IST:SISE
Insider Ownership is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Turkiye Sise ve Cam Fabrikalari AS 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?
Turkiye Sise ve Cam Fabrikalari AS (IST:SISE) has a Insider Ownership of 0.00 % as of Aug. 02, 2026. Insider ownership equals the percent of shares owned by company insiders relative to total shares. View historical data on Turkiye Sise ve Cam Fabrikalari AS and its competitors.
Is Turkiye Sise ve Cam Fabrikalari AS's Insider Ownership too high?
Turkiye Sise ve Cam Fabrikalari AS's current Insider Ownership is 0.00 %. Overall, Turkiye Sise ve Cam Fabrikalari AS has a GF Score™ of 92/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Turkiye Sise ve Cam Fabrikalari AS's Insider Ownership compare to MMM and HON?
Turkiye Sise ve Cam Fabrikalari AS's Insider Ownership of 0.00 % can be compared against companies in the Conglomerates 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 Conglomerates company?
A good Insider Ownership depends on the Conglomerates 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 Turkiye Sise ve Cam Fabrikalari AS and its competitors. Turkiye Sise ve Cam Fabrikalari AS'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 Turkiye Sise ve Cam Fabrikalari AS stock overvalued right now?
Based on GuruFocus' analysis, Turkiye Sise ve Cam Fabrikalari AS (IST:SISE) is currently considered Possible Value Trap. The stock's GF Value™ is ₺62.23, compared to a current price of ₺41.74 — trading 32.9% below its estimated fair value. The current Insider Ownership is 0.00 %. Turkiye Sise ve Cam Fabrikalari AS's overall GF Score™ is 92/100 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 Turkiye Sise ve Cam Fabrikalari AS (IST:SISE), the current Insider Ownership is 0.00 % as of Aug. 02, 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 Turkiye Sise ve Cam Fabrikalari AS (IST:SISE) Overvalued in 2026?

Based on GuruFocus' analysis, Turkiye Sise ve Cam Fabrikalari AS stock appears to be undervalued. The current stock price of ₺41.74 is trading 32.9% below its estimated GF Value™ of ₺62.23. GuruFocus considers Turkiye Sise ve Cam Fabrikalari AS to be Possible Value Trap.

Key valuation signals for IST:SISE:

  • Insider Ownership: 0.00 %
  • GF Value™: ₺62.23 vs. price of ₺41.74 (32.9% below fair value)
  • GF Score™: 92/100 with 8 warning signs

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

Turkiye Sise ve Cam Fabrikalari AS Business Description

Address Icmeler Mahallesi, D-100 Karayolu Caddesi, No: 44/A, Tuzla, Istanbul, TUR, 34947
Turkiye Sise ve Cam Fabrikalari AS is a holding company that, through its subsidiaries, manufactures and sells glass products, chemicals, and glass packaging. The firm's five segments are based on product type. The flat glass segment, which generates more revenue than any other segment, sells glass panes used in windows and automobile windshields. The glassware segment sells glass beverage bottles and crystal products. The other three segments are glass packaging, chemicals, and other, which consists primarily of services including insurance and the export and import of goods. The majority of revenue comes from Turkey.
92GF Score

Get the complete analysis for IST:SISE

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

₺41.74
Price
₺62.23
GF Value