BioLargo, Inc. (BLGO)

OTCMKTS · Delayed Price · Currency is USD
0.1899
0.00 (0.00%)
At close: Dec 5, 2025
-1.86%
Market Cap59.70M
Revenue (ttm)10.81M
Net Income (ttm)-9.84M
Shares Out314.40M
EPS (ttm)-0.03
PE Ration/a
Forward PEn/a
Dividendn/a
Ex-Dividend Daten/a
Volume223,174
Average Volume535,146
Open0.1899
Previous Close0.1899
Day's Range0.1812 - 0.1899
52-Week Range0.1401 - 0.3200
Beta-0.25
RSI60.69
Earnings DateNov 14, 2025

About BioLargo

BioLargo, Inc. invents, develops, and commercializes various platform technologies. The company’s technologies solve challenging environmental problems comprising per - and polyfluoroalkyl substances (PFAS) water contamination, advanced water and wastewater treatment, industrial odor and volatile organic compounds control, air quality control, infection control, and myriad environmental remediation. It provides full-service environmental engineering services. BioLargo, Inc. is based in Westminster, California. [Read more]

Industry Chemicals
Sector Materials
Founded 1991
Employees 44
Stock Exchange OTCMKTS
Ticker Symbol BLGO
Full Company Profile

Financial Performance

In 2024, BioLargo's revenue was $17.78 million, an increase of 45.37% compared to the previous year's $12.23 million. Losses were -$2.40 million, -31.45% less than in 2023.

Financial Statements

News

BioLargo Subsidiary BEST Featured in Chemical Engineering Magazine for PFAS Breakthrough

Lake Stockholm, NJ AEC System Delivered and Preparing to Go Live WESTMINSTER, CALIFORNIA / ACCESS Newswire / December 3, 2025 / BioLargo, Inc. (OTCQX:BLGO), a cleantech innovator focused on sustainabl...

2 days ago - Accesswire

BioLargo to Present at NobleCon's 21st Annual Emerging Growth Equity Conference, Dec. 2-3, 2025

Westminster, California--(Newsfile Corp. - November 21, 2025) - BioLargo, Inc. (OTCQX: BLGO), a company that creates and commercializes sustainable technologies to solve challenging environmental and ...

14 days ago - Newsfile Corp

BioLargo Reports Q3 2025 Operating and Financial Results

$4.5 Million Cash Balance at Quarter-End as High-Impact Technology Portfolio Advances WESTMINSTER, CALIFORNIA / ACCESS Newswire / November 17, 2025 / BioLargo, Inc. (OTCQX:BLGO), a company that create...

18 days ago - Accesswire

BioLargo, Inc. (BLGO) Q3 2025 Earnings Call Transcript

BioLargo, Inc. (OTCQX:BLGO) Q3 2025 Earnings Call November 14, 2025 4:30 PM EST Company Participants Dennis Calvert - Chairman, President & CEO Dennis Calvert - Chief Financial Officer Conference Call...

20 days ago - Seeking Alpha

BioLargo Q3 2025 Earnings Results Webcast and Conference Call on Friday, November 14th, 2025 - 4:30 PM Eastern Time

WESTMINSTER, CA / ACCESS Newswire / November 13, 2025 / BioLargo, Inc. (OTCQX:BLGO), a developer of sustainable technologies and full-service environmental engineering company, announced it will host ...

22 days ago - Accesswire

BioLargo Subsidiary Clyra Medical Technologies Forms Strategic Alliance with Advanced Solution to Launch ViaCLYR(TM) Wound Irrigation Solution Nationwide

Distribution Agreement Brings Innovative Copper-Iodine Complex Technology to Wound Care Market WESTMINSTER, CALIFORNIA / ACCESS Newswire / November 13, 2025 / BioLargo, Inc. (OTCQX:BLGO), a cleantech ...

22 days ago - Accesswire

BioLargo Files Federal Lawsuit Against Pooph Inc.

Nine-count complaint alleges fraud, false advertising, breach of contract, and patent infringement WESTMINSTER, CA / ACCESS Newswire / November 12, 2025 / BioLargo, Inc. (OTCQX:BLGO), a cleantech inno...

23 days ago - Accesswire

BioLargo Cuts AEC PFAS Treatment Energy Use by >90%, Unlocking Commercial-Scale Water Solutions with Unmatched Total Life Cycle Cost Savings

WESTMINSTER, CA / ACCESS Newswire / November 3, 2025 / BioLargo, Inc. (OTCQX:BLGO), a cleantech innovator that develops and commercializes sustainable technologies, today announced a breakthrough upgr...

4 weeks ago - Accesswire

BioLargo Presentation Deck at LD Micro Event Available Online

Cellinity battery cell technology, BioLargo's role in the global AI infrastructure investment cycle, and a general corporate update are featured in the presentation. WESTMINSTER, CA / ACCESS Newswire ...

6 weeks ago - Accesswire

Biolargo Invites You to the Sustain SoCal 16th Annual Energy Event - A Premier Gathering for Clean Energy Innovation

WESTMINSTER, CA / ACCESS Newswire / October 14, 2025 / BioLargo, Inc. (OTCQX:BLGO), a cleantech innovator that creates and commercializes sustainable technologies is excited to invite professionals, i...

7 weeks ago - Accesswire

BioLargo to Present Its Cellinity Battery Technology at LD Micro Main Event XIX in San Diego on Monday, October 20, at 2:00 p.m. PT

Cellinity is a breakthrough battery storage solution for AI infrastructure that eliminates the need for rare earth elements WESTMINSTER, CA / ACCESS Newswire / October 14, 2025 / BioLargo, Inc. (OTCQX...

7 weeks ago - Accesswire

BioLargo Subsidiary Clyra Medical Accelerates Toward Near-Term Product Launches and Global Expansion

Initial Commercialization Targeting $732 Million Wound Care Market is Expected in Late 2025 or Early 2026 WESTMINSTER, CALIFORNIA / ACCESS Newswire / October 13, 2025 / BioLargo, Inc. (OTCQX:BLGO), a ...

7 weeks ago - Accesswire

BioLargo Protects Its Intellectual Property That Built a National Brand - Pooph's License Was Revoked for Non-Payment and Unauthorized Activities

WESTMINSTER, CA / ACCESS Newswire / October 7, 2025 / BioLargo, Inc. (OTCQX:BLGO), a cleantech innovator that creates and commercializes sustainable technologies, today reaffirmed its commitment to pr...

2 months ago - Accesswire

BioLargo Demonstrates Over 99% Removal of Ultrashort-Chain PFAS Including TFA Using Aqueous Electrostatic Concentration Technology

WESTMINSTER, CALIFORNIA / ACCESS Newswire / September 29, 2025 / BioLargo, Inc. (OTCQX:BLGO), a cleantech innovator that creates and commercializes sustainable technologies, today announced compelling...

2 months ago - Accesswire

BioLargo to Showcase Breakthrough PFAS Solutions at WEFTEC 2025, Booth #6009

WESTMINSTER, CALIFORNIA / ACCESS Newswire / September 26, 2025 / BioLargo, Inc. (OTCQX:BLGO), a cleantech innovator that creates and commercializes sustainable technologies, announced today that it wi...

2 months ago - Accesswire

BioLargo Protects its Intellectual Property, Revokes Pooph License Due to Failure to Pay and Other Contract Breaches

Pooph owes BioLargo $3.8 million WESTMINSTER, CA / ACCESS Newswire / September 25, 2025 / BioLargo, Inc. (OTCQX:BLGO), a cleantech innovator that creates and commercializes sustainable technologies, t...

2 months ago - Accesswire

BioLargo Reports Q2 2025 Operating and Financial Results

Significantly Advances Energy Technologies and Clyra Medical Technologies WESTMINSTER, CA / ACCESS Newswire / August 13, 2025 / BioLargo, Inc. (OTCQX:BLGO), a company that creates and commercializes s...

4 months ago - Accesswire

BioLargo Q2 2025 Earnings Results Webcast and Conference Call on Friday, August 15, 2025 - 11 AM Eastern Time

WESTMINSTER, CA / ACCESS Newswire / August 13, 2025 / BioLargo, Inc. (OTCQX:BLGO), a developer of sustainable technologies and full-service environmental engineering company, announced it will host an...

4 months ago - Accesswire

BioLargo Provides Review of 2025 Accomplishments and Insights for Coming Year

Letter to stockholders WESTMINSTER, CALIFORNIA / ACCESS Newswire / July 23, 2025 / BioLargo, Inc. (OTCQX:BLGO), a company that creates and commercializes sustainable technologies to solve tough enviro...

4 months ago - Accesswire

BioLargo Initiates Alpha Testing of Verralize's Portable PFAS Test Kit to Validate Performance for Future Commercialization

WESTMINSTER, CA / ACCESS Newswire / July 1, 2025 / BioLargo, Inc. (OTCQX:BLGO), a company that creates and commercializes sustainable technologies to solve tough environmental and cleantech challenges...

5 months ago - Accesswire

BioLargo Announces Results of 2025 Annual Stockholder Meeting

No immediate intention to proceed with a reverse stock split - "This vote empowers us to be ready when the time is right." WESTMINSTER, CA / ACCESS Newswire / June 26, 2025 / BioLargo, Inc. (OTCQX:BLG...

5 months ago - Accesswire

Independent Evaluation Confirms Breakthrough Performance of BioLargo's Cellinity Battery Technology for Grid-Scale Energy Storage

WESTMINSTER, CALIFORNIA / ACCESS Newswire / June 18, 2025 / BioLargo, Inc. (OTCQX:BLGO), a company that creates and commercializes sustainable technologies to solve tough environmental and cleantech c...

6 months ago - Accesswire

BioLargo Q1 2025 Earnings Results Webcast and Conference Call on Thursday, May 15, 2025 - 4:30 PM Eastern Time

WESTMINSTER, CA / ACCESS Newswire / May 14, 2025 / BioLargo, Inc. (OTCQX:BLGO), a company that creates and commercializes sustainable technologies to solve tough environmental and health challenges, a...

7 months ago - Accesswire

BioLargo Subsidiary Clyra Medical Advances Product Distribution Through a Series of Agreements

WESTMINSTER, CA / ACCESS Newswire / May 13, 2025 / BioLargo, Inc. (OTCQX:BLGO), a company that creates and commercializes sustainable technologies to solve tough environmental and health challenges, t...

7 months ago - Accesswire

BioLargo's PFAS Solution Provides Dramatic Long-Term Cost Savings Compared with Incumbent Technologies

Case studies show the company's innovative capture + destruction two-step approach can offer a scalable, economically feasible solution for PFAS elimination from drinking water, wastewater, and landfi...

7 months ago - Accesswire