OC (Owens-Corning) Insider Ownership: 4.80 % (As of Jul. 30, 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.

OC Owens-Corning Inc OC
84 GF Score
Price $136.09
GF Value $154.69
Valuation Modestly Undervalued
! 4 Warning Signs
View Full Analysis

What is Owens-Corning Insider Ownership?

Owens-Corning OC -0.21% 84 Insider Ownership is 4.80 % as of Jul. 30, 2026. GuruFocus rates OC with a GF Score™ of 84/100 and a GF Value™ of $154.69 (Modestly Undervalued). The stock has 4 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, Owens-Corning's insider ownership is 4.80%.

Institutional Ownership is the percentage of shares that are owned by institutions out of the total shares outstanding. As of today, Owens-Corning's Institutional Ownership is 112.28%.

Float Percentage Of Total Shares Outstanding is the percentage of float shares relative to the total shares outstanding. As of today, Owens-Corning's Float Percentage Of Total Shares Outstanding is 87.32%.

Owens-Corning Insider Ownership Historical Data

* Premium members only.

The historical data trend for Owens-Corning'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.

Owens-Corning Insider Ownership Chart

Owens-Corning Historical Data

The historical data trend for Owens-Corning can be seen below:

2025-06-30 2025-07-31 2025-08-31 2025-09-30 2025-10-31 2025-11-30 2026-01-31 2026-02-28 2026-05-31 2026-06-30
Insider Ownership 4.36 4.38 4.38 4.38 4.38 4.39 4.40 4.50 4.52 4.80
OC
84GF Score
Owens-Corning Inc OC
Insider Ownership is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Owens-Corning 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 4.80 % mean?
Owens-Corning (OC) has a Insider Ownership of 4.80 % as of Jul. 30, 2026. Insider ownership equals the percent of shares owned by company insiders relative to total shares. View historical data on Owens-Corning and its competitors.
Is Owens-Corning's Insider Ownership too high?
Owens-Corning's current Insider Ownership is 4.80 %. Overall, Owens-Corning has a GF Score™ of 84/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Owens-Corning's Insider Ownership compare to SPXC and WMS?
Owens-Corning's Insider Ownership of 4.80 % can be compared against companies in the Construction 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 Construction company?
A good Insider Ownership depends on the Construction 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 Owens-Corning and its competitors. Owens-Corning's current Insider Ownership is 4.80 %. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Owens-Corning stock overvalued right now?
Based on GuruFocus' analysis, Owens-Corning (OC) is currently considered Modestly Undervalued. The stock's GF Value™ is $154.69, compared to a current price of $136.09 — trading 12% below its estimated fair value. The current Insider Ownership is 4.80 %. Owens-Corning's overall GF Score™ is 84/100 with 4 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 Owens-Corning (OC), the current Insider Ownership is 4.80 % as of Jul. 30, 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 Owens-Corning (OC) Overvalued in 2026?

Based on GuruFocus' analysis, Owens-Corning stock appears to be undervalued. The current stock price of $136.09 is trading 12% below its estimated GF Value™ of $154.69. GuruFocus considers Owens-Corning to be Modestly Undervalued.

Key valuation signals for OC:

  • Insider Ownership: 4.80 %
  • GF Value™: $154.69 vs. price of $136.09 (12% below fair value)
  • GF Score™: 84/100 with 4 warning signs

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

Owens-Corning Business Description

Other Exchanges O5Q:Germany
Address One Owens Corning Parkway, Toledo, OH, USA, 43659
Owens-Corning Inc is a building products company that offers roofing products and systems, insulation products (hermal and acoustical batts, loose fill insulation, spray foam insulation, wet use chopped strand, etc.), and doors and door systems. The company's reportable segments are: Roofing, Insulation, and Doors. Maximum revenue is generated from the Roofing segment, which manufactures and sells residential roofing shingles, oxidized asphalt materials, roofing components, and composite lumber mainly used in residential construction. This segment also manufactures and sells glass mat and specialty veil materials used in building and construction applications. Geographically, the company generates maximum revenue from the United States, followed by Europe, Asia-Pacific, and other markets.
84GF Score

Get the complete analysis for OC

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

$136.09
Price
$154.69
GF Value