Revenue
2011
2011
2012
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 · Dec 31 | 2012 · Jun 30 | 2011 · Dec 31 | 2011 · Jun 30 | 2010 | 2009 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | $250.2M | $288.5M | $288.4M | $284.0M | $155.7M | $98.7M | $99.0M | $103.8M | $138.3M | $183.8M | $170.1M | $174.5M | $67.5M | $1.1M | $93,975 | $979,833 | $9,160 | — | — |
| Gross profit | $42.5M | $50.0M | $50.1M | $48.9M | $28.7M | $19.1M | $18.7M | $16.9M | $15.7M | $14.4M | $13.6M | $14.3M | $5.1M | $1.1M | $73,889 | $979,833 | $3,774 | — | — |
| Gross margin | 17.00% | 17.33% | 17.36% | 17.20% | 18.43% | 19.31% | 18.92% | 16.24% | 11.36% | 7.84% | 8.02% | 8.18% | 7.52% | 96.86% | 78.63% | 100.00% | 41.20% | — | — |
| Research & development | — | — | — | — | — | — | — | — | — | — | — | — | — | — | $191,150 | — | — | — | — |
| Operating expenses | $48.7M | $54.5M | $47.2M | $47.5M | $24.2M | $18.3M | $18.1M | $18.9M | $21.1M | $22.2M | $20.9M | $18.2M | $17.9M | $24.6M | $1.9M | $5.1M | $728,648 | — | — |
| Operating income | −$6.2M | −$4.5M | $2.8M | $1.4M | $4.5M | $750,269 | $595,470 | −$2.0M | −$5.4M | −$7.8M | −$7.2M | −$3.9M | −$12.8M | −$23.4M | −$1.9M | −$4.1M | −$724,874 | — | — |
| Operating margin | −2.46% | −1.55% | 0.98% | 0.49% | 2.89% | 0.76% | 0.60% | −1.93% | −3.87% | −4.25% | −4.25% | −2.26% | −18.97% | −2,046.44% | −1,969.60% | −422.93% | −7,913.47% | — | — |
| EBITDA | −$881,000 | $4.9M | $12.4M | $11.1M | $7.0M | $1.9M | $1.9M | $699,561 | −$1.4M | −$3.8M | −$2.7M | −$115,849 | −$11.0M | −$23.4M | — | −$4.1M | — | — | — |
| EBITDA margin | −0.35% | 1.71% | 4.30% | 3.89% | 4.48% | 1.94% | 1.93% | 0.67% | −0.99% | −2.05% | −1.56% | −0.07% | −16.28% | −2,040.45% | — | −417.68% | — | — | — |
| Net income | −$15.4M | −$15.1M | −$7.3M | −$6.0M | $1.7M | $1.0M | −$55,240 | −$2.4M | −$5.8M | −$8.0M | −$7.4M | −$9.9M | −$17.8M | −$42.2M | −$1.9M | −$1.6M | −$755,275 | −$1.0M | −$67,103 |
| Net profit margin | −6.15% | −5.22% | −2.53% | −2.13% | 1.09% | 1.05% | −0.06% | −2.35% | −4.21% | −4.38% | −4.38% | −5.67% | −26.37% | −3,679.31% | −2,035.33% | −161.16% | −8,245.36% | — | — |
| Basic EPSper basic share | -$0.73 | -$0.73 | -$0.36 | -$0.31 | $0.09 | $0.05 | $0.00 | -$0.16 | -$0.38 | -$0.55 | -$0.53 | -$0.80 | -$1.84 | -$5.92 | -$2.00 | -$0.24 | -$0.80 | — | — |
| Diluted EPSper diluted share | -$0.73 | -$0.73 | -$0.36 | -$0.31 | $0.08 | $0.05 | $0.00 | -$0.16 | -$0.38 | -$0.55 | -$0.53 | -$0.80 | -$1.84 | -$5.92 | -$2.00 | -$0.24 | -$0.80 | — | — |
Reported shareholders
| Holder | % owned |
|---|---|
Hampstead Park Environmental Services Investment Fund LLC / FRIEDBERG DANIEL M. / Hampstead Park Capital Management, LLC | ≈14.28%3.01M shares |
WYNNEFIELD CAPITAL INC | 12.96%2.73M shares |
KITT BARRY M | ≈12.83%2.71M shares |
Veradace Capital Management LLC | 5.96%1.26M shares |
VANGUARD CAPITAL MANAGEMENT LLC | 3.26%688.63K shares |
Moss Perry W. | ≈1.66%349.48K shares |
LPL Financial LLC | 1.54%325.78K shares |
Mink Brook Asset Management LLC | 1.40%295.59K shares |
TRUIST FINANCIAL CORP | 1.31%276.22K shares |
GEODE CAPITAL MANAGEMENT, LLC | 0.79%166.79K shares |
RENAISSANCE TECHNOLOGIES LLC | 0.58%122.89K shares |
Skylands Capital, LLC | 0.52%110.6K shares |
Johnston Brett Wade | ≈0.43%91.73K shares |
VANGUARD FIDUCIARY TRUST CO | 0.40%83.58K shares |
CITADEL ADVISORS LLC | 0.34%71.67K shares |
DIMENSIONAL FUND ADVISORS LP | 0.28%59.84K shares |
MILLENNIUM MANAGEMENT LLC | 0.27%57.82K shares |
STATE STREET CORP | 0.25%51.95K shares |
Qube Research & Technologies Ltd | 0.17%35.72K shares |
NORTHERN TRUST CORP | 0.16%33.83K shares |
Percentages use 21.09M shares of this listed class outstanding on Jun 30, 2026. ≈ compares the latest reported holding with a share total from a different date; it is not a confirmed current stake.
Gray completes the 100% scale. Reported positions may overlap; holders have different reporting dates.
| Transaction | Insider | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| Mar 19, 2026Form 4 | Hampstead Park Capital Management, LLC +2TenPercentOwner | BuyCommon Stock | 8.5K | $0.87 | $7.4K | 49.1K |
| Mar 18, 2026Form 4 | Lipstein Robert JDirector | BuyCommon Stock | 11.0K | $0.90 | $9.9K | 48.5K |
| Mar 16, 2026Form 4 | Culpepper GlennDirector | BuyCommon Stock | 5.0K | $1.16 | $5.8K | 61.6K |
| Dec 23, 2025Form 4 | Culpepper GlennDirector | BuyCommon Stock | 5.0K | $1.96 | $9.8K | 56.6K |
| Oct 27, 2025Form 4 | KITT BARRY MTenPercentOwner | BuyCommon Stock, $0.001 par value per share · indirect | 62.9K | $1.36 | $85.5K | 2.69M |