BLGO (BioLargo) Institutional Ownership: 0.04% (As of Sep. 02, 2026)

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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.
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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.

What is BioLargo Institutional Ownership?

BioLargo BLGO +3.64% Institutional Ownership is 0.04% as of Sep. 02, 2026. The stock has 8 warning signs investors should review.

Institutional ownership is the percentage of shares that are owned by institutions out of the total shares outstanding. As of today, BioLargo's institutional ownership is 0.04%.

Insider Ownership is the percentage of shares that are owned by company insiders relative to the total shares outstanding. As of today, BioLargo's Insider Ownership is 10.33%.

Float Percentage Of Total Shares Outstanding is the percentage of float shares relative to the total shares outstanding. As of today, BioLargo's Float Percentage Of Total Shares Outstanding is 86.65%.

BioLargo Institutional Ownership Historical Data

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The historical data trend for BioLargo's Institutional 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.

BioLargo Institutional Ownership Chart

BioLargo Historical Data

The historical data trend for BioLargo can be seen below:

2022-01-31 2022-02-28 2022-03-31 2022-04-30 2022-05-31 2022-06-30 2022-07-31 2022-08-31 2022-09-30 2022-10-31
Institutional Ownership 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

BioLargo Institutional Ownership Calculation

The percentage of shares that are owned by institutions out of the total shares outstanding.

What does a Institutional Ownership of 0.04% mean?
BioLargo (BLGO) has a Institutional Ownership of 0.04% as of Sep. 02, 2026. Institutional ownership equals the percent of shares owned by financial institutions relative to total shares. View historical data on BioLargo and its competitors.
Is BioLargo's Institutional Ownership too high?
BioLargo's current Institutional Ownership is 0.04%.
How does BioLargo's Institutional Ownership compare to BIOF and LOOP?
BioLargo's Institutional Ownership of 0.04% 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 Institutional Ownership for a Chemicals company?
A good Institutional Ownership depends on the Chemicals industry context. However, Institutional 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 Institutional Ownership mean?
A high Institutional Ownership can signal that a stock is expensive relative to its fundamentals. Institutional ownership equals the percent of shares owned by financial institutions relative to total shares. View historical data on BioLargo and its competitors. BioLargo's current Institutional Ownership is 0.04%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is BioLargo stock overvalued right now?
Based on GuruFocus' analysis, BioLargo (BLGO) is currently considered Significantly Overvalued. The stock's GF Value™ is $0.07, compared to a current price of $0.10 — trading 38.4% above its estimated fair value. The current Institutional Ownership is 0.04%. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Institutional Ownership calculated?
Institutional Ownership is calculated from a company's financial statements. For BioLargo (BLGO), the current Institutional Ownership is 0.04% as of Sep. 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.

BioLargo Business Description

Address 14921 Chestnut Street, Westminster, CA, USA, 92683
BioLargo Inc invents, develops, and commercializes platform technologies to solve challenging environmental problems like PFAS contamination, water and wastewater treatment, industrial odor, VOC control, air quality control, and infection control. The company has six segments: ONM Environmental; Clyra Medical; BLEST; BETI; BEST; and BioLargo Canada. ONM Environmental, which sells odor and volatile organic control products and services, located in Westminster, California, derives the maximum revenue.