BioLargo, Inc.
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About the company
BioLargo, Inc. pioneers the invention, development, and commercialization of sophisticated platform technologies. The company is dedicated to tackling critical environmental challenges, such as per- and polyfluoroalkyl substances (PFAS) contamination, advanced water and wastewater purification, managing industrial odors and volatile organic compounds (VOCs), enhancing air quality, and controlling infections.
- CEO
- Dennis Calvert
- IPO
- 2007
- Employees
- 45
- HQ
- Westminster, CA, US
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Similar companies
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- Market Cap
- $25.67M
- P/E
- -1.77
- PEG
- 0.01
- P/S
- 6.29
- P/B
- -13.87
- EV/EBITDA
- -1.39
- Div Yield
- 0.00%
- Gross Margin
- 39.93%
- Op Margin
- -443.63%
- Net Margin
- -354.85%
- ROE
- -548.88%
- ROIC
- -806.28%
Latest fiscal year · YoY change
- Revenue
- $7.76M-56.3%
- Gross Profit
- $3.41M-56.6%
- Op Income
- $-14,841,000
- Net Income
- $-11,780,000-390.4%
- EPS
- $-0.04-374.1%
- OCF Growth
- -158.8%
- FCF Growth
- -87.9%
- 52W High
- $0.23
- 52W Low
- $0.08
- 50D MA
- $0.11
- 200D MA
- $0.15
- Beta
- -0.12
- RSI (14)
- 29
- Avg Volume
- 435.17K
Earnings call summaries
Pick a quarter — each call distilled into takeaways, results, and a bull vs bear read.
BioLargo said Q1 revenue surged on Pooph and Environmental growth, losses narrowed sharply, and management expects multiple products to move closer to commercialization despite uneven timing.· May 5, 2026
- Q1 revenue was $3.742 million, up 288% year over year, with Environmental up 491% year over year and 86% versus Q4 2022.
- Net loss improved about 68%-75% year over year to about $475,000, and management said the company is very close to positive cash flow.
- Pooph is still the main growth engine, with Walmart rollout progress, Chewy interest, and management citing a roughly 20% quarter-over-quarter growth expectation from partners.
- Clyra’s Bioclynse has FDA 510(k) clearance and management expects revenue increases starting in Q2 or Q3, with hospital adoption still in process.
- PFAS, MLD, and the battery program are all framed as future catalysts, but most remain in the development or early commercialization phase.
BioLargo reported Q1 2023 revenue of $3.742 million, up 288% year over year. Management said net loss improved roughly 68%-75% year over year to about $475,000, and cash was $643,264 versus $302.2 thousand a year ago. Environmental revenue was up 491% year over year and 86% versus Q4 2022. The company said SG&A was relatively static and operating cash flow was very close to breakeven. Forward-looking commentary pointed to continued Pooph growth, with partners forecasting about 20% quarter-over-quarter growth for the next year, and management expecting Clyra revenue increases in Q2 or Q3.
Dennis Calvert’s tone was highly optimistic and confidence-building, with repeated emphasis that BioLargo is becoming a “new company” with multiple commercialization paths. He highlighted Pooph as the immediate revenue driver, Clyra as a high-margin future opportunity, PFAS as a major long-term market, and the sodium-sulfur battery as potentially the largest revenue asset in the portfolio. He also stressed that the company is leaning on partnerships and staying lean until contracts justify added overhead.
No formal CFO remarks were given; management commentary covered the financials. Calvert said net loss was about $475,000, down roughly 75% from a year ago, and most of that loss was noncash. He said SG&A was “pretty static,” operating cash use was very close to positive, and cash stood at $643,264 versus $302.2 thousand a year earlier. He also noted net shareholder equity of $3.55 million and said the company has retired prior toxic debt, with only a few SBA/PPP items in dispute and a 3% SBA loan remaining.
Analysts asked about Clyra’s regulatory status, timing for revenue recognition, and distribution through hospital systems. Management said Bioclynse already has the needed regulatory approvals and expects revenue increases in Q2 or Q3, though hospital formulary and purchasing processes can take 90 days to 9 months. They also asked about South America waste-to-energy, Ultra Safe Nuclear, MLD sales, AOS, CupriDyne/BKT, and Pooph-related expansion; management generally said these are progressing but delayed by customer timing, financing, or lengthy commercialization cycles.
The bullish case from this call is that BioLargo now has a real revenue engine in Pooph, with retail expansion still unfolding and management saying growth could stay strong over a longer horizon even if quarter-to-quarter results are lumpy. At the same time, Clyra, PFAS, and the battery program each have clear commercialization narratives, and management believes several of them can become meaningful revenue contributors.
The main risks are timing and execution: many initiatives are still waiting on customer approvals, contracts, or distribution ramp, and management repeatedly said commercialization can be slow and unpredictable. They also flagged lumpiness from inventory stocking, capital-market caution, and the fact that some projects remain paused or only verbally committed rather than signed.
AI summary of the company's earnings call · Paraphrased · Not investment advice
- Free Float
- 86.1%
- Shares Outstanding
- 320.88M
- Float Shares
- 276.13M
of shares held by institutions
1 13F filers
Buy/sell ratio 0.00. Sells can include pre-scheduled 10b5-1 plan sales, not just discretionary selling.
Recent insider transactions
Who's buying, who's selling, and how much.
| Date | Insider | Type | Shares |
|---|---|---|---|
| Jul 7, 26 | CODE KENNETH REAY | other | 532,567 |
| Jul 1, 26 | CALVERT DENNIS P | other | 219,914 |
| Jun 30, 26 | CALVERT DENNIS P | other | 699,569 |
| Jun 30, 26 | STROMMEN JACK B. | other | 132,159 |
| Jun 30, 26 | Park Linda | other | 165,198 |
| Jun 30, 26 | Bray Christina Elaine | other | 165,198 |
| Jun 30, 26 | Marshall Dennis E | other | 115,741 |
| Jun 30, 26 | Marshall Dennis E | other | 198,238 |
| Jun 22, 26 | Marshall Dennis E | other | 40,909 |
| Mar 31, 26 | CODE KENNETH REAY | other | 69,444 |
A “Sell” may be a pre-scheduled 10b5-1 plan sale rather than a discretionary decision — read insider selling with that in mind.
Our BLGO coverage
Recent articles, reports, and earnings notes.
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Generate BLGO report →BioLargo Reports Second Quarter 2026 Results; Revenue Up 12% Sequentially, Gross Margin Expands to 54%
accessnewswire.com · Aug 17
BioLargo's Lake Stockholm AEC Installation passes six months of PFAS remediation Topping Two Million Gallons
accessnewswire.com · Aug 3
BioLargo Joins New Jersey Institute of Technology-Led PFAS Consortium; President Tonya Chandler Appointed to Board of Directors
accessnewswire.com · Jul 30
BioLargo Equipment Solutions & Technologies' "PFAS Lady" to Teach PFAS 101 at 41st Annual Tri-State Seminar
accessnewswire.com · Jul 29
BioLargo PFAS Treatment Technology Featured in The Disruptive Quarterly
accessnewswire.com · Jul 27
BioLargo Relaunching CupriDyne(R)-Based Consumer Products - Back by Popular Demand and Generated More than $125 Million in Pet-Care Sales
accessnewswire.com · Jul 13
BioLargo Engineering Unit Awarded $1.4 Million in U.S. Air Force Environmental Contract Renewals
accessnewswire.com · Jul 1
BioLargo, Inc. (BLGO) Shareholder/Analyst Call Transcript
seekingalpha.com · May 6
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