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BioLargo, Inc. (BLGO)

USD0.11 -0.01 (-4.92%)
US OTC Basic Materials Chemicals
Address 14921 Chestnut Street 92683
Westminster, CA, US
CEO Dennis Calvert
IPO 2007-03-22
CIK 880242 ISIN US09065A1007

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Description

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. Backed by numerous issued patents, BioLargo maintains a robust product pipeline and extends its expertise through comprehensive environmental engineering services. Among its notable innovations are the Advanced Oxidation system, a water treatment solution generating potent oxidative and energetic iodine species; the Aqueous Electrostatic Concentrator, specifically designed for eliminating PFAS from water; CupriDyne Clean industrial products, which effectively neutralize stubborn odors and VOCs across various industrial settings; and specialized advanced wound care products. Established in 1991, BioLargo, Inc. is headquartered in Westminster, California.

Market Cap & Enterprise Value
Merger & Acquisition History

No mergers or acquisitions recorded for this company.

Technical Outlook
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Signal Summary Loading…
Indicator 1D1W2W3W1M
Each column is computed on that timeframe's candles (1D = daily, 1W ≈ weekly, 1M ≈ monthly), not on the same last day. ▲ bullish · ▼ bearish · — neutral. The Net row counts signals per column; hover any cell (or the indicator name) to see the exact rule behind it.
Day Score & sub-scores
Statistical fingerprint & regime detail
Conditional historical analysis
Customize analysis (advanced)
Indicative levels generated algorithmically. Not financial advice.
Risk Profile
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Price Chart
Averages
Trend
Price
Levels
Draw
USD0.11 -0.01 (-4.92%)
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Volume Profile
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Liquidity & share structure
Average Volume
475.5K
Beta
-0.14
Float Shares
277.14M
Free Float %
86.4%
Price Performance
1D5D1M3M6M YTD1Y3Y5Y10YMax
-1.19% -11.80% -9.93% -20.30% -16.05% -28.65% -37.94% -34.00% -26.94% -60.15% -86.98%
Rolling Volatility
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Drawdown
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Relative Strength
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Monthly Returns Heatmap
From To
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Annual Monthly Returns
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Daily Returns Distribution
vs.
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Revenue flow

Revenue by geography

Revenue by segment

From To

Revenue composition

From To

By product

By geography

Financial Statements

Income Statement

Balance Sheet

Cash Flow Statement

Key Metrics

Financial Ratios

Employees

Financial Growth (CAGR)

Market Data

Price Targets & DCF
Current price
0.11
Ratings Trend (MoM) 100% Bullish
Rating 2026-05 Change
Strong Buy 0 0
Buy 1 0
Hold 0 0
Sell 0 0
Strong Sell 0 0
Quality scores
Altman Z-Score
-29.40
Distress
Piotroski F-Score
1 / 9
Weak
MOAT Score
2 / 10
No MOAT
Composite Rating
D+
Overall Score
1 / 5
Low
DCF Score
1 / 5
Low
ROE Score
1 / 5
Low
ROA Score
1 / 5
Low
D/E Score
1 / 5
Low
P/E Score
1 / 5
Low
P/Book Score
1 / 5
Low
Operational MOAT
✗ Below peers
  • Revenue growth Chemicals: +4.0%
    -56.3% Q1'26: -65.9% (vs Q1'25)
  • EPS growth Chemicals: +11.7%
    -374.1% Q1'26: -89.5% (vs Q1'25)
  • FCF margin FCF growth · Chemicals: +41.7%
    -207.8% Q1'26: -261.6% (vs Q1'25)
  • EBIT margin Chemicals: +7.1%
    -191.1% Q1'26: -287.4% (vs Q1'25)
  • ROIC Chemicals: +3.4%
    -1,283.8% Q1'26: +435.0% (vs Q1'25)
  • Share dilution Chemicals: +0.0%
    +3.0% Q1'26: +5.8% (vs Q1'25)
  • Debt / EBITDA Net debt/EBITDA · Chemicals: 0.55×
    -0.24× Q1'26: -0.11× (vs Q1'25)
Valuation Multiples From To
Price Forecast (3Y) From To
Model
Adjust
P/E
Theoretical Return — If Invested Today

* These projections are based on analyst consensus estimates and user-defined valuation multiples. This table is for informational purposes only and does not constitute a recommendation to buy or sell any security. Past performance is not indicative of future results.

DCF Interactive Model (UFCF)
Projection years:
Market assumptions
WACC components (optional)
Ke (Cost of Equity) = Rf + β (-0.09) × ERP
WACC = 92% × Ke + 8% × Kd (15.4%) × (1−t)

Modifying these values recalculates WACC automatically.

Business assumptions
Current price: 0.11
Enterprise Value: Equity Value: Terminal Value: TV as % of EV:

Base values reflect the latest available data for this company and market conditions.

Consensus Estimates
Metric Dec 2022
actual
Dec 2023
actual
Dec 2024
actual
Dec 2025
actual
Dec 2026
1 Rev. Ana.
1 EPS Ana.
Revenue
5.88M
est: 5.59M (+5.3%)
12.23M
est: 11.30M (+8.2%)
17.78M
est: 19.10M (-6.9%)
7.77M
est: 8.40M (-7.6%)
3.60M
3.60M – 3.60M
-57.1% YoY
EBITDA
-5.10M
est: -3.84M (-32.7%)
-4.19M
est: -7.77M (+46.1%)
-4.06M
est: -13.13M (+69.1%)
-14.55M
est: -5.77M (-152.0%)
-2.47M
-2.47M – -2.47M
+57.1% YoY
EBIT
-5.08M
est: -3.87M (-31.3%)
-4.54M
est: -7.82M (+41.9%)
-4.31M
est: -13.21M (+67.3%)
-14.84M
est: -5.81M (-155.4%)
-2.49M
-2.49M – -2.49M
+57.1% YoY
Net Income
-4.50M
est: -2.98M (-50.8%)
-3.50M
est: -5.96M (+41.2%)
-2.40M
est: -3.07M (+21.7%)
-11.78M
est: -6.14M (-91.9%)
-15.35M
-15.35M – -15.35M
-150.0% YoY
SGA
6.73M
est: 8.76M (-23.2%)
8.06M
est: 17.71M (-54.5%)
9.30M
est: 23.99M (-61.2%)
11.77M
est: 10.55M (+11.5%)
4.52M
4.52M – 4.52M
-57.1% YoY
EPS
-0.02
est: -0.01 (-68.0%)
-0.01
est: -0.02 (+38.5%)
-0.01
est: -0.01 (+19.0%)
-0.04
est: -0.02 (-92.0%)
-0.05
-0.05 – -0.05
-150.0% YoY
Historical Ratings (3M)
Date Rating Overall DCF ROE ROA D/E P/E P/B
2026-05-15 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-05-14 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-05-13 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-05-12 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-05-11 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-05-08 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-05-07 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-05-06 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-05-05 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-05-04 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-05-01 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-30 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-29 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-28 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-27 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-24 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-23 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-22 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-21 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-20 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-17 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5
2026-04-16 D+ 1/5 1/5 1/5 1/5 1/5 1/5 1/5

Owner Earnings

Owner's Earnings (history) From To
Owner alignment
Owner's Earnings TTM
-11.34M
OE per share TTM
-0.04
Owner's Yield
-26.83%
Maintenance CapEx ratio
Maint CapEx / Avg PPE
17.6%

Ownership Overview

Ownership breakdown
At a glance
Institutional holders
1
Total invested
21.7K
Insider transactions (90d)
0
Beneficial owners (>5%)
1
Beneficial owners (>5%)
# Reporting person Amount owned % of class Sole voting Shared voting Sole dispositive Shared dispositive Type Citizenship Filing date SEC filing
1 Jack B. Strommen 6.94M 6.80% 6.94M 6.94M IN United States of America 2017-06-30

Institutional Activity (13F)

Institutional ownership trend From To
13F snapshot — 2025 Q4
Investors holding
1
+0 vs prev Q
New positions
0
Closed positions
0
Increased
0
Reduced
0
Put/Call ratio
0.00
Calls held
Puts held
Top institutional holders
# Investor Shares / Δ Mkt value / Δ Own% / Δ Weight% / Δ Avg px / Perf. Hold / Status
1 FIRST AMERICAN TRUST, FSB 117.8K +— (+0.0%) 21.7K +1.8K (+8.8%) 0.04% -0.001 pp 0.00% +0.000 pp USD0.76 -76.3% 38 qtrs
Ownership breakdown by holder

ETF Ownership

Top ETFs holding this stock

This company is not held by any ETF in our universe.

Insider Activity

Insider Activity — Latest Quarter
Ratio by transactions
0.00
Bearish
Buys
7
Sells
0
Shares acquired
948.1K
Shares disposed
Cash buys
Cash sales
Net activity
+948,149
Insider buys vs sells (history) From To
Recent insider transactions From To
Date Person Role Transaction A/D Security Shares Price Value Owned after D/I Filing
2026-03-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 92,593 0.16 15.0K 2,452,103 D
2026-03-31 Park Linda Director A-Award A Option to Purchase Common Stock 115,741 0.16 18.8K 1,381,502 D
2026-03-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 115,741 0.16 18.8K 5,432,829 D
2026-03-31 CODE KENNETH REAY Director / Officer A-Award A Common Stock 69,444 0.16 11.2K 25,875,752 D
2026-03-31 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 115,741 0.16 18.8K 1,381,502 D
2026-02-01 DARGAN CHARLES K Officer A-Award A Option to Purchase Common Stock 300,000 0.18 53.7K 5,931,668 D
2025-12-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 81,389 0.18 15.0K 2,359,510 D
2025-12-31 Park Linda Director A-Award A Option to Purchase Common Stock 101,736 0.18 18.7K 1,265,761 D
2025-12-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 122,084 0.18 22.5K 5,144,645 D
2025-12-31 CODE KENNETH REAY Director / Officer A-Award A Common Stock 54,803 0.18 10.1K 25,806,308 D
2025-12-31 CALVERT DENNIS P Director / Officer A-Award A Common Stock 130,222 0.18 24.0K 10,523,625 D
2025-12-31 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 101,736 0.18 18.7K 1,265,761 D
2025-11-14 CODE KENNETH REAY Director / Officer A-Award A Common Stock 313,754 0.16 50.2K 25,751,505 D
2025-11-14 CALVERT DENNIS P Director / Officer A-Award A Common Stock 310,269 0.16 49.6K 10,393,403 D
2025-09-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 88,235 0.17 15.0K 2,278,121 D
2025-09-30 Park Linda Director A-Award A Option to Purchase Common Stock 110,294 0.17 18.7K 1,164,025 D
2025-09-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 132,351 0.17 22.5K 4,957,267 D
2025-09-30 DARGAN CHARLES K Officer J-Other D Option to Purchase Common Stock 300,000 0.57 171.0K 4,625,786 D
2025-09-30 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 110,294 0.17 18.7K 1,164,025 D
2025-07-14 CODE KENNETH REAY Director / Officer A-Award A Common Stock 181,253 0.20 36.3K 25,131,495 D
2025-07-14 CALVERT DENNIS P Director / Officer A-Award A Common Stock 169,498 0.20 33.9K 10,029,542 D
2025-06-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 75,000 0.20 15.0K 2,189,886 D
2025-06-30 Park Linda Director A-Award A Option to Purchase Common Stock 93,750 0.20 18.8K 1,053,731 D
2025-06-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 93,750 0.20 18.8K 4,859,531 D
2025-06-30 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 93,750 0.20 18.8K 1,053,731 D
2025-02-01 DARGAN CHARLES K Officer A-Award A Option to Purchase Common Stock 300,000 0.25 76.1K 4,925,786 D
2024-12-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 78,947 0.19 15.0K 2,061,395 D
2024-12-31 Park Linda Director A-Award A Option to Purchase Common Stock 98,684 0.19 18.7K 893,017 D
2024-12-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 98,684 0.19 18.7K 4,624,625 D
2024-12-31 CODE KENNETH REAY Director / Officer A-Award A Common stock 57,666 0.19 11.0K 25,120,245 D
2024-12-31 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 98,684 0.19 18.7K 893,017 D
2024-12-26 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 118,422 0.19 22.5K 4,525,941 D
2024-09-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 65,217 0.23 15.0K 1,982,368 D
2024-09-30 Park Linda Director A-Award A Option to Purchase Common Stock 81,522 0.23 18.8K 794,333 D
2024-09-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 81,522 0.23 18.8K 4,471,805 D
2024-09-30 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 81,522 0.23 18.8K 794,333 D
2024-09-29 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 93,749 0.24 22.5K 4,390,283 D
2024-08-13 DARGAN CHARLES K Officer A-Award A Option 300,000 0.24 72.0K 4,625,786
2024-06-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 58,824 0.26 15.0K 1,917,151
2024-06-30 Park Linda Director A-Award A Option to Purchase Common Stock 73,529 0.26 18.7K 712,811
2024-06-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 73,529 0.26 18.7K 4,344,406
2024-06-30 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 73,529 0.26 18.7K 712,811
2024-06-28 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 88,237 0.26 22.5K 4,270,877
2024-06-23 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 700,000 0.27 189.0K 4,325,786
2024-03-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 42,857 0.35 15.0K 1,858,327
2024-03-31 Park Linda Director A-Award A Option to Purchase Common Stock 53,571 0.35 18.7K 639,282
2024-03-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 53,571 0.35 18.7K 4,217,256
2024-03-31 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 53,571 0.35 18.7K 639,282
2024-03-28 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 64,176 0.35 22.5K 4,163,685
2023-12-31 Park Linda Director A-Award A Option to Purchase Common Stock 111,607 0.17 18.7K 585,711
2023-12-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 111,607 0.17 18.7K 4,108,116
2023-12-31 CODE KENNETH REAY Director / Officer A-Award A Common stock 72,621 0.17 12.2K 25,062,579
2023-12-31 CALVERT DENNIS P Director / Officer A-Award A Common stock 50,557 0.17 8.5K 9,860,044
2023-12-31 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 111,607 0.17 18.7K 585,711
2023-09-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 90,525 0.17 15.0K 1,726,184
2023-09-30 Park Linda Director A-Award A Option to Purchase Common Stock 113,156 0.17 18.7K 474,104
2023-09-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 113,156 0.17 18.7K 3,996,509
2023-09-30 CODE KENNETH REAY Director / Officer A-Award A Common stock 19,010 0.17 3.1K 24,989,958
2023-09-30 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 113,156 0.17 18.7K 474,104
2023-07-24 CALVERT DENNIS P Director / Officer A-Award A Common stock 50,553 0.18 9.0K 9,809,487
2023-07-17 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 500,000 0.18 90.0K 4,189,893
2023-06-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 84,270 0.18 15.0K 1,635,659
2023-06-30 Park Linda Director A-Award A Option to Purchase Common Stock 105,337 0.18 18.7K 360,948
2023-06-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 105,337 0.18 18.7K 3,883,353
2023-06-30 CODE KENNETH REAY Director / Officer A-Award A Common stock 68,541 0.18 12.2K 24,970,948
2023-06-30 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 105,337 0.18 18.7K 360,948
2023-03-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 73,206 0.20 15.0K 1,551,389
2023-03-31 Park Linda Director A-Award A Option to Purchase Common Stock 91,508 0.20 18.7K 255,611
2023-03-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 91,508 0.20 18.7K 3,778,016
2023-03-31 CODE KENNETH REAY Director / Officer A-Award A Common stock 30,747 0.20 6.3K 24,902,407
2023-03-31 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 91,508 0.20 18.7K 255,611
2023-03-21 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 300,000 0.20 60.0K 4,331,500
2023-01-01 Park Linda Director D Option to Purchase Common Stock 100,000 0.24 24.4K
2023-01-01 Bray Christina Elaine Director D Option to Purchase Common Stock 100,000 0.24 24.4K
2022-12-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 76,923 0.00 1,478,183
2022-12-31 Park Linda Director A-Award A Option to Purchase Common Stock 64,103 0.00 164,103
2022-12-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 96,154 0.00 3,686,508
2022-12-31 Bray Christina Elaine Director A-Award A Option to Purchase Common Stock 64,103 0.00 164,103
2022-12-28 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 37,500 0.00 3,590,354
2022-12-28 DARGAN CHARLES K Officer A-Award A Option to Purchase Common Stock 205,000 0.00 4,031,500
2022-11-01 Park Linda Director D Common Stock 0 0.00 187,500
2022-10-03 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 55,556 0.00 2,524,751
2022-10-03 Runyan John S. Director A-Award A Option to Purchase Common Stock 23,750 0.00 2,854,951
2022-10-03 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 55,556 0.00 2,477,251
2022-10-03 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 69,444 0.00 3,594,729
2022-10-03 CODE KENNETH REAY Officer A-Award A Common stock 167,781 0.27 45.3K 24,871,660
2022-10-03 CALVERT DENNIS P Officer A-Award A Common stock 100,549 0.27 27.1K 9,758,934
2022-07-07 CALVERT DENNIS P Officer A-Award A Common stock 156,111 0.18 28.1K 9,658,385
2022-06-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 83,333 0.00 1,345,704
2022-06-30 Runyan John S. Director A-Award A Option to Purchase Common Stock 104,167 0.18 18.8K 2,809,257
2022-06-30 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 83,333 0.00 2,469,195
2022-06-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 104,167 0.18 18.8K 3,591,535
2022-06-30 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 150,000 0.00 4,236,500
2022-06-30 CODE KENNETH REAY Officer A-Award A Common stock 107,784 0.18 19.4K 24,703,879
2022-04-04 Roberts Kent Charles II Director A-Award A Option to purchase common stock 4,167 0.00 2,320,645
2022-03-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 65,217 0.00 1,262,371
2022-03-31 Runyan John S. Director A-Award A Option to purchase common stock 3,334 0.00 2,623,568
2022-03-31 Roberts Kent Charles II Director A-Award A Option to purchase common stock 4,167 0.23 958.41 2,320,645
2022-03-31 PROVENZANO JOSEPH L Officer A-Award A Option to purchase common stock 124,051 0.00 1,671,296
2022-03-31 Marshall Dennis E Director A-Award A Option to purchase common stock 208,377 0.00 3,405,846
2022-03-31 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 127,500 0.00 4,086,500
2022-03-22 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 300,000 0.00 3,959,000
2022-01-07 PROVENZANO JOSEPH L Director / Officer A-Award A Option to purchase common stock 38,584 0.22 8.5K 1,547,245
2021-12-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 71,429 0.21 15.0K 1,197,154
2021-12-31 Runyan John S. Director A-Award A Option to Purchase Common Stock 89,286 0.21 18.8K 2,620,234
2021-12-31 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 89,286 0.21 18.8K 2,316,478
2021-12-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 63,750 0.21 13.4K 3,108,183
2021-12-31 CODE KENNETH REAY Director / Officer A-Award A Common stock 15,000 0.21 3.2K 24,596,095
2021-12-30 CALVERT DENNIS P Director / Officer G-Gift D Common stock 156,000 0.23 35.1K 9,502,274
2021-10-05 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 78,947 0.19 15.0K 1,125,725
2021-10-05 Runyan John S. Director A-Award A Option to Purchase Common Stock 98,684 0.19 18.7K 2,530,948
2021-10-05 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 78,947 0.19 15.0K 2,245,049
2021-10-05 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 98,684 0.19 18.7K 3,279,433
2021-10-05 CODE KENNETH REAY Director / Officer / 10% Owner A-Award A Common stock 61,842 0.19 11.7K 24,581,095
2021-07-01 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 88,235 0.17 15.0K 1,046,778
2021-07-01 Runyan John S. Director A-Award A Option to Purchase Common Stock 110,294 0.17 18.7K 2,432,264
2021-07-01 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 88,235 0.17 15.0K 2,166,102
2021-07-01 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 110,294 0.17 18.7K 3,180,749
2021-05-21 PROVENZANO JOSEPH L Director / Officer A-Award A Option to purchase common stock 50,000 0.18 9.0K 1,508,661
2021-05-21 Marshall Dennis E Director A-Award A Option to purchase common stock 27,439 0.18 4.9K 3,070,455
2021-05-21 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 30,000 0.18 5.4K 3,659,000
2021-04-20 STROMMEN JACK B. Director C-Conversion A Common stock 563,035 0.24 135.1K 4,878,579
2021-04-01 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 65,934 0.23 15.0K 958,543
2021-04-01 Runyan John S. Director A-Award A Option to Purchase Common Stock 82,418 0.23 18.8K 2,321,970
2021-04-01 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 65,934 0.23 15.0K 2,077,867
2021-04-01 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 82,418 0.23 18.8K 3,152,772
2021-04-01 CODE KENNETH REAY Director / Officer / 10% Owner A-Award A Common stock 75,606 0.23 17.2K 24,519,253
2021-04-01 CALVERT DENNIS P Director / Officer A-Award A Common stock 61,758 0.23 14.0K 9,658,274
2021-03-18 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 300,000 0.17 52.2K 3,626,500
2020-12-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 125,000 0.12 15.0K 892,609
2020-12-31 Runyan John S. Director A-Award A Option to Purchase Common Stock 156,250 0.12 18.8K 2,239,552
2020-12-31 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 125,000 0.12 15.0K 2,011,933
2020-12-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 156,250 0.12 18.8K 3,070,354
2020-12-31 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 7,500 0.12 900.00 3,588,286
2020-12-31 CALVERT DENNIS P Officer A-Award A Common stock 316,260 0.12 38.0K 9,596,516
2020-10-08 PROVENZANO JOSEPH L Director / Officer A-Award A Option to purchase common stock 74,051 0.15 11.1K 1,658,661
2020-10-08 Marshall Dennis E Director A-Award A Option to purchase common stock 37,500 0.15 5.6K 2,914,104
2020-10-08 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 50,000 0.15 7.5K 3,460,786
2020-10-06 CALVERT DENNIS P Director / Officer A-Award A Common stock 164,331 0.15 24.6K 9,505,256
2020-09-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 100,000 0.15 15.0K 767,609
2020-09-30 Runyan John S. Director A-Award A Option to Purchase Common Stock 125,000 0.15 18.8K 2,083,302
2020-09-30 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 100,000 0.15 15.0K 1,886,933
2020-09-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 125,000 0.15 18.8K 3,026,604
2020-09-30 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 5,000 0.15 750.00 3,618,286
2020-09-30 CODE KENNETH REAY Director / Officer / 10% Owner A-Award A Common stock 185,339 0.15 27.8K 24,107,807
2020-09-30 CALVERT DENNIS P Officer A-Award A Common stock 164,331 0.15 24.6K 9,505,256
2020-06-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 93,750 0.16 15.0K 667,609
2020-06-30 Runyan John S. Director A-Award A Option to Purchase Common Stock 117,188 0.16 18.8K 1,958,302
2020-06-30 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 93,750 0.16 15.0K 667,609
2020-06-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 117,188 0.16 18.8K 2,901,604
2020-06-30 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 5,000 0.16 800.00 3,633,286
2020-06-30 CODE KENNETH REAY Director / Officer / 10% Owner A-Award A Common stock 166,474 0.16 26.6K 23,922,468
2020-06-30 CALVERT DENNIS P Director / Officer A-Award A Common stock 200,929 0.16 32.1K 9,340,925
2020-05-01 PROVENZANO JOSEPH L Director / Officer A-Award A Option to purchase common stock 50,000 0.14 7.0K 1,678,703
2020-05-01 DARGAN CHARLES K Officer A-Award A Option to purchase common stock 214,286 0.14 30.0K 3,648,286
2020-05-01 CODE KENNETH REAY Director / Officer / 10% Owner A-Award A Option to Purchase Common Stock 343,571 0.14 48.1K 408,571
2020-05-01 CALVERT DENNIS P Director / Officer A-Award A Option to Purchase Common Stock 50,000 0.14 7.0K 3,846,322
2020-03-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 88,235 0.17 15.0K 573,859
2020-03-31 Runyan John S. Director A-Award A Option to Purchase Common Stock 110,294 0.17 18.7K 1,841,114
2020-03-31 Roberts Kent Charles II Director 0 0.00 0
2020-03-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 110,294 0.17 18.7K 2,784,416
2020-03-31 CODE KENNETH REAY Director / Officer / 10% Owner A-Award A Common stock 366,993 0.17 62.4K 23,755,994
2020-03-31 CALVERT DENNIS P Director / Officer A-Award A Common stock 281,762 0.17 47.9K 9,139,996
2020-03-09 CALVERT DENNIS P Director / Officer G-Gift D Common stock 25,000 0.00 8,858,234
2020-02-25 DARGAN CHARLES K Officer A-Award A Option to Purchase Common Stock 27,500 0.21 5.8K 3,056,500
2020-02-01 DARGAN CHARLES K Officer J-Other D Option to Purchase Common Stock 60,000 0.58 34.5K 3,029,000
2020-01-31 DARGAN CHARLES K Officer J-Other D Option to Purchase Common Stock 10,000 0.50 5.0K 3,089,000
2019-12-31 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 68,182 0.22 15.0K 485,624
2019-12-31 Runyan John S. Director A-Award A Option to Purchase Common Stock 85,227 0.22 18.7K 1,730,820
2019-12-31 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 68,182 0.22 15.0K 1,516,713
2019-12-31 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 85,227 0.22 18.7K 2,674,122
2019-12-31 DARGAN CHARLES K Officer J-Other D Option to Purchase Common Stock 10,000 0.70 7.0K 3,099,000
2019-12-31 CALVERT DENNIS P Director / Officer G-Gift D Common stock 225,000 0.00 8,883,234
2019-11-30 DARGAN CHARLES K Officer J-Other D Option to Purchase Common Stock 10,000 0.57 5.7K 3,109,000
2019-11-02 DARGAN CHARLES K Officer J-Other D Option to Purchase Common Stock 10,000 0.45 4.5K 3,119,000
2019-09-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 47,619 0.32 15.0K 417,442
2019-09-30 Runyan John S. Director A-Award A Option to Purchase Common Stock 59,524 0.32 18.8K 1,645,593
2019-09-30 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 47,619 0.32 15.0K 1,448,531
2019-09-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 59,524 0.32 18.8K 2,588,895
2019-09-30 DARGAN CHARLES K Officer J-Other D Option to Purchase Common Stock 10,000 0.40 4.0K 3,129,000
2019-09-30 CODE KENNETH REAY Officer A-Award A Common stock 35,080 0.32 11.1K 23,389,001
2019-09-19 PROVENZANO JOSEPH L Director / Officer A-Award A Option to Purchase Common Stock 32,500 0.22 7.2K 1,828,703
2019-09-19 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 45,000 0.22 9.9K 2,529,371
2019-09-19 DARGAN CHARLES K Officer A-Award A Option to Purchase Common Stock 79,000 0.22 17.4K 3,139,000
2019-09-19 CODE KENNETH REAY Director / Officer / 10% Owner A-Award A Option to Purchase Common Stock 65,000 0.22 14.3K 265,000
2019-09-19 CALVERT DENNIS P Director / Officer A-Award A Option to Purchase Common Stock 65,000 0.22 14.3K 3,996,322
2019-06-30 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 65,217 0.23 15.0K 369,823
2019-06-30 Runyan John S. Director A-Award A Option to Purchase Common Stock 81,522 0.23 18.8K 1,586,069
2019-06-30 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 65,217 0.23 15.0K 1,400,912
2019-06-30 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 81,522 0.23 18.8K 2,664,371
2019-06-30 CODE KENNETH REAY Director / Officer / 10% Owner A-Award A Common Stock 235,656 0.23 54.2K 23,353,921
2019-06-30 CALVERT DENNIS P Director / Officer A-Award A Common Stock 230,219 0.23 53.0K 9,108,234
2019-06-18 PROVENZANO JOSEPH L Director / Officer A-Award A Option to Purchase Common Stock 1,000,000 0.17 170.0K 1,926,203
2019-04-29 STROMMEN JACK B. Director A-Award A Option to Purchase Common Stock 93,750 0.16 15.0K 304,606
2019-04-29 Runyan John S. Director A-Award A Option to Purchase Common Stock 117,188 0.16 18.8K 1,504,547
2019-04-29 Roberts Kent Charles II Director A-Award A Option to Purchase Common Stock 93,750 0.16 15.0K 1,335,695
2019-04-29 Marshall Dennis E Director A-Award A Option to Purchase Common Stock 117,188 0.16 18.8K 2,582,849
2019-04-29 CODE KENNETH REAY Director / Officer / 10% Owner A-Award A Common Stock 311,562 0.16 49.8K 23,118,265
2019-04-29 CALVERT DENNIS P Director / Officer A-Award A Common Stock 268,434 0.16 42.9K 8,878,015
2019-01-16 DARGAN CHARLES K Officer A-Award A Stock Option Agreement 300,000 0.22 66.9K 3,206,000

Executive team

Top executives
EBIT / Employee
-371.0K
Shares Outstanding
320.88M

Executive compensation

Executive compensation (annual)
# Year Executive Salary Bonus Stock award Option award Incentive Other Total % Stock-
based
Filing
1 2024 Kenneth R. Code, Charles K. Dargan, Chief Financial Officer 288.6K 12.6K 301.2K 0.00%
2 2024 Joseph L. Provenzano, 193.8K 67.7K 261.5K 0.00%
3 2024 Corporate Secretary; President ONM Environmental, Inc. 233.9K 233.9K 100.00%
4 2023 Dennis P. Calvert, Chairman, Chief Executive Officer and President 288.6K 28.0K 316.6K 0.00%
5 2023 Kenneth R. Code, Charles K. Dargan Chief Financial Officer 288.6K 12.6K 301.2K 0.00%
6 2023 Joseph Provenzano, President ONM Environmental, Inc 199.3K 25.0K 10.1K 24.3K 259.1K 13.54%
7 2023 Corporate Secretary; President ONM Environmental, Inc. 199.3K 25.0K 10.1K 24.3K 258.7K 13.56%
8 2023 Kenneth R. Code, Charles K. Dargan, Chief Financial Officer 140.9K 140.9K 100.00%
9 2023 Corporate Secretary; 140.9K 140.9K 100.00%
10 2022 Dennis P. Calvert, Chairman, Chief Executive Officer 288.6K 139.9K 27.4K 456.0K 30.69%
11 2022 Corporate Secretary; 169.8K 8.6K 18.5K 248.2K 3.47%
12 2022 Joseph Provenzano, 169.8K 8.6K 18.5K 248.2K 3.47%
13 2022 Corporate Secretary; President ONM Environmental, Inc 130.2K 130.2K 100.00%
14 2022 Kenneth R. Code, Charles K. Dargan Chief Financial Officer 130.2K 130.2K 100.00%
15 2021 Dennis P. Calvert, Chairman, Chief Executive Officer and President 288.6K 335.8K 27.0K 651.4K 51.55%
16 2021 Joseph Provenzano, 169.8K 8.6K 12.3K 190.6K 4.51%
17 2021 Corporate Secretary; President ONM Environmental, Inc 169.8K 8.6K 12.3K 190.6K 4.51%
18 2021 Corporate Secretary; President Odor-No-More, Inc 54.3K 54.3K 100.00%
19 2021 Kenneth R. Code, Charles K. Dargan Chief Financial Officer 54.3K 54.3K 100.00%
20 2020 Dennis P. Calvert, Chairman, Chief Executive Officer and President 288.6K 388.7K 31.7K 709.0K 54.82%
21 2020 Corporate Secretary; President Odor-No-More, Inc 169.8K 44.5K 16.8K 231.1K 19.26%
22 2020 Dennis P. Calvert, Chairman, Chief Executive Officer and President Kenneth R. Code, Chief Science Officer Charles K. Dargan Chief Financial Officer Joseph Provenzano, 129.0K 129.0K 100.00%
23 2020 Kenneth R. Code, Charles K. Dargan Chief Financial Officer 129.0K 129.0K 100.00%
24 2019 Corporate Secretary; President Odor-No-More, Inc 169.8K 26.8K 13.9K 210.5K 12.73%
25 2019 Dennis P. Calvert, Chairman, Chief Executive Officer and President Kenneth R. Code, Chief Science Officer Charles K. Dargan Chief Financial Officer Joseph Provenzano, 66.9K 66.9K 100.00%
26 2018 Dennis P. Calvert, Chairman, Chief Executive Officer and President Kenneth R. Code, Chief Science Officer Charles K. Dargan Chief Financial Officer Joseph Provenzano, 288.6K 335.8K 31.3K 655.7K 51.21%
27 2018 Corporate Secretary; President Odor-No-More, Inc 169.8K 37.6K 16.6K 224.9K 16.72%
28 2017 Dennis P. Calvert, Chairman, Chief Executive Officer and President 288.6K 195.9K 49.6K 534.1K 36.68%
29 2017 Kenneth R. Code, Chief Science Officer 288.6K 72.6K 361.2K 0.00%
30 2017 Charles K. Dargan Chief Financial Officer 236.3K 236.3K 100.00%
31 2017 Dennis P. Calvert, Chairman, Chief Executive Officer and President Kenneth R. Code, Chief Science Officer Charles K. Dargan Chief Financial Officer Joseph Provenzano, 236.3K 236.3K 100.00%
32 2017 Joseph Provenzano, Corporate Secretary; President Odor-No-More, Inc 169.8K 47.0K 12.9K 229.7K 20.46%
33 2016 Dennis P. Calvert, Chairman, Chief Executive Officer and President 288.6K 25.7K 314.3K 0.00%
34 2016 Kenneth R. Code, Chief Science Officer 288.6K 12.6K 301.2K 0.00%
35 2016 Joseph Provenzano, Corporate Secretary; President Odor-No-More, Inc 169.8K 14.5K 184.3K 0.00%
36 2016 Joseph Provenzano, Corporate Secretary; President Odor-No-More, Inc. 169.8K 14.5K 184.3K 0.00%
37 2016 Charles K. Dargan Chief Financial Officer 107.0K 107.0K 100.00%
38 2015 Dennis P. Calvert, Chairman, Chief Executive Officer and President Kenneth R. Code, Chief Science Officer Charles K. Dargan Chief Financial Officer Joseph Provenzano, 288.6K 68.0K 12.6K 369.2K 18.42%
39 2015 Kenneth R. Code, Chief Science Officer 288.6K 68.0K 12.6K 369.2K 18.42%
40 2015 Dennis P. Calvert, Chairman, Chief Executive Officer and President 288.6K 12.6K 301.2K 0.00%
41 2015 Corporate Secretary; President Odor-No-More, Inc. 162.1K 118.4K 3.6K 284.1K 41.69%
42 2015 Joseph Provenzano, Corporate Secretary; President Odor-No-More, Inc. 162.1K 118.4K 3.6K 284.1K 41.69%
43 2015 Charles K. Dargan Chief Financial Officer 189.8K 189.8K 100.00%
44 2014 Charles K. Dargan II, Chief Financial Officer 288.6K 12.6K 301.2K 0.00%
45 2014 Kenneth R. Code, Chief Science Officer 288.6K 12.6K 301.2K 0.00%
46 2014 Joseph Provenzano, Corporate Secretary; President Odor-No-More, Inc. 189.0K 189.0K 100.00%
47 2014 Dennis P. Calvert, Chairman, Chief Executive Officer and President Kenneth R. Code, Chief Science Officer Charles K. Dargan Chief Financial Officer Joseph Provenzano, 147.3K 3.6K 150.9K 0.00%
48 2013 Joseph Provenzano, Corporate Secretary; 288.6K 12.6K 301.2K 0.00%
49 2013 Kenneth R. Code, Chief Science Officer 288.6K 12.6K 301.2K 0.00%
50 2013 Dennis P. Calvert, Chairman, Chief Executive Officer and President 288.6K 12.6K 301.2K 0.00%
51 2013 Joseph Provenzano, Corporate Secretary; President Odor-No-More, Inc. 133.9K 3.6K 137.5K 0.00%
52 2013 Charles K. Dargan II, Chief Financial Officer 90.0K 90.0K 100.00%
53 2012 Dennis P. Calvert, Chairman, 288.6K 100.0K 360.2K 12.6K 761.4K 60.44%
54 2012 Charles K. Dargan II, Chief Financial Officer 288.6K 100.0K 28.7K 12.6K 429.9K 29.94%
55 2012 Kenneth R. Code, Chief Science Officer 288.6K 100.0K 28.7K 12.6K 377.0K 34.15%
56 2012 Joseph Provenzano, Corporate Secretary; 121.8K 50.0K 14.4K 3.6K 189.7K 33.93%
57 2012 Joseph Provenzano, Corporate Secretary 16.0K 122.2K 138.2K 88.43%
58 2011 Kenneth R. Code, Chief Technology Officer 262.4K 25.0K 82.0K 12.6K 382.0K 21.47%
59 2011 Dennis P. Calvert, Chairman, 262.4K 25.0K 82.0K 12.6K 382.0K 21.47%
60 2011 Kenneth R. Code, Chief Science Officer 262.4K 20.0K 82.0K 12.6K 377.0K 21.75%
61 2011 Joseph Provenzano, Corporate Secretary 110.7K 20.0K 82.0K 3.6K 216.3K 37.91%
62 2011 Joseph L. Provenzano, Corporate Secretary 64.0K 49.2K 113.2K 43.46%
63 2011 Charles K. Dargan II, Chief Financial Officer 64.0K 49.2K 113.2K 43.46%
64 2010 Dennis P. Calvert, Chairman, 238.5K 100.0K 12.6K 351.1K 28.48%
65 2010 Kenneth R. Code, Chief Technology Officer 238.5K 100.0K 12.6K 351.1K 28.48%
66 2010 Joseph L. Provenzano, Corporate Secretary 100.6K 100.0K 3.6K 204.2K 48.97%
67 2010 Charles K. Dargan II, Chief Financial Officer 64.0K 75.4K 139.4K 54.09%
68 2006 Dennis Calvert President and Chief Executive Officer 184.8K 184.8K 0.00%
69 2006 Joe Provenzano Secretary 61.2K 40.0K 101.2K 0.00%
CEO compensation breakdown

Proxy statements

Proxy statements (DEF 14A)
Filing date Form type Filing
2025-04-25 DEF 14A
2025-04-10 PRE 14A
2024-04-26 DEF 14A

Recent SEC filings

Recent SEC filings
Filing date Form type Filing
2026-05-15 10-Q
2026-05-06 8-K
2026-05-04 8-K
2026-04-30 10-K/A
2026-04-17 424B4
2026-04-17 424B4
2026-04-15 EFFECT
2026-04-15 EFFECT
2026-04-09 S-1
2026-04-09 S-1

Executive team

NameTitleCompensationGender
Dennis Calvert Chairman, President & Chief Executive Officer 317.8K male
Kenneth Reay Code Chief Science Officer & Director 301.2K male
Joseph L. Provenzano Executive Vice President of Operations, Corporate Secretary & Director 232.0K male
Steven V. Harrison President of Clyra Medical Technologies Inc 30.2K male
Tonya Chandler President of BioLargo Equipment Solutions & Technologies female
Randall Moore President of BioLargo Engineering, Science & Technologies, LLC male
Richard Smith President of BioLargo Water
Charles K. Dargan Chief Financial Officer male
ESG Rating
B
CHEMICALS
Rank: 6 out of 17
2016
E (Environmental)
70.2 / 63.0
Company / Sector avg.
S (Social)
68.7 / 69.7
Company / Sector avg.
G (Governance)
69.4 / 62.2
Company / Sector avg.
ESG Total
69.4 / 65.0
Company / Sector avg.
ESG Score History CHEMICALS
Benchmark vs Sector
Senate Trading Activity

No Senate trading activity found for this company.

House Trading Activity

No House trading activity found for this company.

Market share among peers
Peer comparison — filtered group (TTM)
Your opinion

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Dividend history

Earnings history

Earnings reports

Stock splits