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No insider purchase over the last 90 days. The latest was filed 15 May 2026.
Energy Recovery, Inc.: what insiders have been doing
Every trade that managers of Energy Recovery, Inc. disclose to SEC (Form 4) is tracked on this page. The company sits in the Energy sector and is based in San Leandro, United States. It was founded in 1992. From 18 October 2025 to 18 October 2026, the disclosure feed for Energy Recovery, Inc. logged 37 filings by 16 insiders.
The record shows 1 purchase on the open market worth €142k, made by 1 insider, against 11 sales worth €2.6M by 5 insiders. The totals exclude 1 filing filed without an amount. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Those buying include 1 senior executive. The largest single trade was a sale of €1.5M by Hanstveit Arve, published on 6 April 2026, equal to 0.33% of the market capitalisation.
With 37 filings in twelve months, the company is more active than the median of 19 filings across the 5,812 companies we follow on the same exchange. Looking back to 2021, when coverage begins, insiders filed 11 purchases and 64 sales. In its latest annual report filed with the SEC (10-K, fiscal year ended 31 December 2025), the company reported revenue of 135.0 m USD and net income of 23.0 m USD.
The latest purchase dates back some time: it was published 156 days ago, on 15 May 2026. The median gap between a trade and its publication by SEC (Form 4) is 2 days. US insiders must file a Form 4 within two business days of a trade. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify.
Elsewhere in the same sector, our signals recently picked up insider purchases at RGC Resources Inc and Terawulf Inc. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
Insider Decl.
204
Thresholds
n/a
Buy Volume
€921,620
11 ops. · all time
Sell Volume
€55M
64 ops. · all time
Who traded when
BuySaleArve Hanstveit8 sales
Rodney Clemente5 sales
William Yeung3 sales
Pamela L. Tondreau2 buys
Alexander J. Buehler1 sale
David W. Moon1 buy
+1 other insider
Since the insiders bought
- -25.9%Entry US$9.06 · Close 14 Oct 2026 US$6.71
- -31.2%Entry US$13.16 · Close at T+365 US$9.06
- +10.3%Entry US$17.87 · Close at T+365 US$19.71
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 3,937 of 24,148 companies
69.1
score / 100
Value62
Quality76
FCF yld5.1%
Earn yld6.8%
EV/EBITDA12.5x
ROE8.6%
Gross mgn65%
Net mgn17%
Debt/EBITDA0.3x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
US$6.71
Analyst consensus
2 analysts3.00/5
US$8.00Target US$8.00(+19%)US$8.00
Income statement
RevenueUS$135M
Gross profitUS$87.9M65% margin
EBITDAUS$28M21% margin
Net incomeUS$23M12.7% margin
Valuation
PER (trailing)26.8x
PER (forward)20.0x
P/Book2.0x
Beta0.91
Balance sheet & cash
Market capUS$342.5M
Total debtUS$9.4M
Free Cash FlowUS$17.4M
Debt / Equity5%
Profitability & ownership
ROE8.6%
ROA6.0%
% insiders2.1%
% institutions98.2%
Last declaration on 29 July 2026
Declarations204 total
2,828 shares@ US$8.420.0068% mcap0.9% of flowCommon StockSEC:0001421517-26-000073:0
2,320 shares@ US$8.420.0056% mcap0.8% of flowCommon StockSEC:0001421517-26-000075:0
5,387 shares@ US$8.560.013% mcap1.8% of flowCommonSEC144:0001959173-26-005390
2,048 shares@ US$8.560.0051% mcap0.7% of flowCommonSEC144:0001959173-26-005395
16,797 shares0Common StockSEC:0002144584-26-000004:0
18,518 shares@ US$11.610.040% mcap100.0% of flowCommon StockSEC:0002135681-26-000004:0
15,327 sharesCommon StockSEC:0001421517-26-000064:0
14,900 sharesCommon StockSEC:0001421517-26-000064:1
14,900 shares@ US$8.82920.029% mcap23.2% of flowCommonSEC144:0001959173-26-004678
18,094 shares@ US$8.290.029% mcap49.3% of flowCommon StockSEC:0001421517-26-000056:0
18,094 shares@ US$8.290.029% mcap1.8% of flowCommon StockSEC:0001430122-26-000006:0
22,316 shares@ US$8.290.035% mcap21.1% of flowCommon StockSEC:0001722237-26-000002:0
18,094 shares@ US$8.290.029% mcap37.9% of flowCommon StockSEC:0001390709-26-000002:0
20,000 shares@ US$8.3420.033% mcap18.8% of flowCommon StockSEC:0001421517-26-000044:0
Canonical exit: 11 Aug 2026 (T+90)
2,419 shares@ US$10.290.0050% mcap0.3% of flowCommon StockSEC:0001421517-26-000029:0
165,292 shares@ US$10.140.33% mcap19.7% of flowCommon StockSEC:0001421517-26-000027:0
25,000 shares@ US$10.9593.2% of flowCommon StockSEC:0001430122-26-000004:0
38,418 shares@ US$10.714.8% of flowCommon StockSEC:0001430122-26-000002:0
272 shares@ US$10.579.4% of flowCommon StockSEC:0002058874-26-000002:0
20,568 shares@ US$10.6148.3% of flowCommon StockSEC:0001668422-26-000006:0
2,724 shares@ US$10.2290.6% of flowCommon StockSEC:0001421517-26-000024:0
25,959 shares0Common StockSEC:0002055445-26-000002:0
25,959 shares0Common StockSEC:0001677876-26-000006:0
29,106 shares0Common StockSEC:0001421517-26-000013:0
81,812 shares0Common StockSEC:0001372923-26-000004:0
25 of 204 declarations
About Energy Recovery, Inc.
Energy Recovery, Inc. is a U.S.-listed industrial technology company traded on the Nasdaq in the United States under the ticker ERII. For French-speaking investors, it sits at the intersection of water infrastructure, energy efficiency, and specialized process equipment. Founded in 1992, the company built its reputation on a niche expertise in energy recovery and on engineering solutions that reduce power consumption in pressure-intensive industrial processes. Its headquarters, R&D, and manufacturing operations are in San Leandro, California. ([sec.gov](https://www.sec.gov/Archives/edgar/data/1421517/000142151725000048/erii-20241231.htm?utm_source=openai))
Energy Recovery first established itself in seawater desalination, where its PX Pressure Exchanger devices recover energy from high-pressure brine streams. That technology made the company a recognized supplier to desalination EPCs, plant operators, and membrane system integrators. The company positions itself as a global leader in energy recovery devices, with a specialized footprint tied to water infrastructure and industrial process markets. ([energyrecovery.com](https://energyrecovery.com/about/?utm_source=openai))
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Its business model is centered on several lines. The Water segment remains the historic core, anchored by PX products for reverse osmosis and desalination applications. Energy Recovery also serves the Refrigeration market, where it offers energy-recovery solutions for CO2 refrigeration and selected cold-chain use cases. In parallel, the company has pursued Emerging Technologies, although this portfolio has recently been streamlined. Recent 2026 disclosures show a strategic reset, including the wind-down of the CO2 retail grocery business after management concluded that scaled adoption would require more time and investment than initially expected. ([sec.gov](https://www.sec.gov/Archives/edgar/data/1421517/000142151725000048/erii-20241231.htm?utm_source=openai))
From a competitive standpoint, ERII benefits from a specialist profile: high energy savings, low maintenance needs, and straightforward integration into pressurized industrial systems. Those attributes support its positioning in markets where energy costs and operational reliability are decisive. Key differentiators include intellectual property, industrial execution, and the ability to win long-cycle project business, often in water-stressed regions. The company’s commercial presence is global, with references across North America, Europe, the Middle East, and Asia, particularly in large desalination projects. ([energyrecovery.com](https://energyrecovery.com/about/?utm_source=openai))
Recent highlights include 2025 and 2026 earnings updates showing a company that remains profitable but is exposed to project timing, tariff-related cost pressure, and active capital allocation through share repurchases. In May 2026, Energy Recovery also announced a leadership transition: CEO David Moon plans to retire once a successor is appointed, and CFO Mike Mancini resigned, with an interim CFO named. For investors, ERII remains a quality technology story on the Nasdaq, linked to water infrastructure growth and capital discipline, but still subject to project cyclicality and portfolio execution risk. ([ir.energyrecovery.com](https://ir.energyrecovery.com/news-events/press-releases/detail/377/energy-recovery-reports-its-first-quarter-2026-financial?utm_source=openai))
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