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buyModerate cluster of 2

Pamela L. Tondreau bought $52k of ERII

director at Energy Recovery, Inc.. 4,200 shares at an average of $12.28, traded May 14, 2025, filed May 15, 2025.

Conviction score
51
Value
$52k
4,200 shares
Holdings after
41,043
+11% from before
From 52-week low
+8%
low $11.37, close $12.31
From 52-week high
-38%
high $19.93, as of May 14, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $52k at market
    +7
  • Relative to holdings
    Holdings up 11%
    +3
  • Price context
    8% above the 52-week low; 38% below the 52-week high
    +18
  • Cluster
    2 insiders buying within 14 days
    +8
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

ERIIOct 9, 2026 · close 6.84
Since filing May 15, 2025: -44.3%SPY +34.0% · excess -78.3%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001421517-25-000080, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 14, 2025POpen-market purchase
Common Stock
+4,200$12.28$52k41,043May 15, 2025

Related signals

Other insiders at Energy Recovery, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
32Weak
ERIIsell
Energy Recovery, Inc.
Arve Hanstveit
director
$445k
30,000 shares
-5%
0Weak
ERIIsell10b5-1
Energy Recovery, Inc.
William Yeung
Chief Legal Officer
$227k
12,698 shares
-13%
0Weak
ERIIsell10b5-1
Energy Recovery, Inc.
William Yeung
Chief Legal Officer
$60k
3,530 shares
-3%
0Weak
ERIIsell10b5-1
Energy Recovery, Inc.
William Yeung
Chief Legal Officer
$58k
3,530 shares
-3%
0Weak
ERIIsell10b5-1
Energy Recovery, Inc.
William Yeung
Chief Legal Officer
$57k
3,567 shares
-4%
0Weak
ERIIsell10b5-1
Energy Recovery, Inc.
William Yeung
Chief Legal Officer
$233k
15,454 shares
-14%
8Weak
ERIIsell10b5-1
Energy Recovery, Inc.
William Yeung
Chief Legal Officer
$487k
33,554 shares
-26%
3Weak
ERIIsell10b5-1
Energy Recovery, Inc.
Rodney Clemente
SVP, Water
$75k
5,387 shares
-5%
35Weak
ERIIsell
Energy Recovery, Inc.
Arve Hanstveit
director
$635k
50,000 shares
-7%
61Notable
ERIIbuy 2
Energy Recovery, Inc.
David W Moon
President and CEO
$51k
4,200 shares
+13%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Pamela L. Tondreau bought $52k of ERII | InsiderTell