NASDAQ:ERII

Energy Recovery Stock Insider Trading

Industrials > Industrial - Pollution & Treatment Controls

Buy ERII

*Your capital is at risk

$8.86

-0.0400 (-0.449%)

At Close: Jun 23, 2026

Energy Recovery Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -65.23. In total, the insiders bought 785.78K and sold 702.05K ERII shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-65.23
● Buy	785.78K shares
● Sell	702.05K shares
55% Buy Activity Moderate Positive Correlation
Sell Signal High Confidence Apr 02, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -65.23. Partially supported by a positive historical correlation. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Oct 16, 2025 Sell	Common Stock S-Sale	Yeung William Chief Legal Officer	Officer	3 530 Value: $58.2K
Oct 16, 2025 Buy	Common Stock M-Exempt	Yeung William Chief Legal Officer	Officer	3 530 Value: $26.5K
Oct 03, 2025 Buy	Common Stock M-Exempt	Yeung William Chief Legal Officer	Officer	2 529 Value: $19.0K
Oct 03, 2025 Buy	Common Stock M-Exempt	Yeung William Chief Legal Officer	Officer	1 038 Value: $8K
Oct 03, 2025 Sell	Common Stock S-Sale	Yeung William Chief Legal Officer	Officer	2 529 Value: $40.5K
Oct 03, 2025 Buy	Employee Stock Option (Right to Buy) M-Exempt	Yeung William Chief Legal Officer	Officer	1 038 Value: $8K
Oct 03, 2025 Buy	Employee Stock Option (Right to Buy) M-Exempt	Yeung William Chief Legal Officer	Officer	2 529 Value: $19.0K
Oct 03, 2025 Sell	Common Stock S-Sale	Yeung William Chief Legal Officer	Officer	2 529 Value: $40.5K
Oct 03, 2025 Buy	Common Stock M-Exempt	Yeung William Chief Legal Officer	Officer	1 038 Value: $8K
Oct 03, 2025 Buy	Employee Stock Option (Right to Buy) M-Exempt	Yeung William Chief Legal Officer	Officer	2 529 Value: $19.0K
Oct 03, 2025 Buy	Employee Stock Option (Right to Buy) M-Exempt	Yeung William Chief Legal Officer	Officer	1 038 Value: $8K
Oct 03, 2025 Buy	Common Stock M-Exempt	Yeung William Chief Legal Officer	Officer	2 529 Value: $19.0K
Sep 18, 2025 Buy	Common Stock M-Exempt	Yeung William Chief Legal Officer	Officer	15 454 Value: $138.3K
Sep 18, 2025 Sell	Common Stock S-Sale	Yeung William Chief Legal Officer	Officer	15 454 Value: $233.1K
Sep 18, 2025 Buy	Employee Stock Option (Right to Buy) M-Exempt	Yeung William Chief Legal Officer	Officer	15 454 Value: $138.3K
Sep 18, 2025 Buy	Employee Stock Option (Right to Buy) M-Exempt	Yeung William Chief Legal Officer	Officer	15 454 Value: $138.3K
Sep 18, 2025 Sell	Common Stock S-Sale	Yeung William Chief Legal Officer	Officer	15 454 Value: $233.1K
Sep 18, 2025 Buy	Common Stock M-Exempt	Yeung William Chief Legal Officer	Officer	15 454 Value: $138.3K
Sep 11, 2025 Buy	Common Stock M-Exempt	Yeung William Chief Legal Officer	Officer	30 877 Value: $276.3K
Sep 11, 2025 Sell	Common Stock S-Sale	Yeung William Chief Legal Officer	Officer	33 554 Value: $486.9K
Sep 11, 2025 Buy	Employee Stock Option (Right to Buy) M-Exempt	Yeung William Chief Legal Officer	Officer	30 877 Value: $276.3K
Sep 11, 2025 Buy	Employee Stock Option (Right to Buy) M-Exempt	Yeung William Chief Legal Officer	Officer	30 877 Value: $276.3K
Sep 11, 2025 Sell	Common Stock S-Sale	Yeung William Chief Legal Officer	Officer	33 554 Value: $486.9K
Sep 11, 2025 Buy	Common Stock M-Exempt	Yeung William Chief Legal Officer	Officer	30 877 Value: $276.3K
Jul 28, 2025 Sell	Common Stock S-Sale	Clemente Rodney SVP, Water	Officer	5 387 Value: $75.3K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT ENERGY RECOVERY

Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells various solutions for the seawater reverse osmosis desalination and industrial wastewater treatment industries worldwide. The company operates through Water and Emerging Technologies segments. It offers a suite of products, including energy recovery devices, and high-pressure feed and recirculation pumps; hydraulic turbochargers and boosters; and spare parts, ...

Read Full Profile Here