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Insider · CIK 0001397838

Alexander J Buehler

directorceopresidentofficer

Files at LIQT (LIQTECH INTERNATIONAL INC), ERII (Energy Recovery, Inc.). First filing Jun 17, 2026, latest Jun 17, 2026.

In brief

Alexander J Buehler files SEC Form 4 as director, CEO and president at ERII (Energy Recovery, Inc.), and also at LIQT (LIQTECH INTERNATIONAL INC). Since Jun 17, 2026, Alexander J Buehler has reported 0 open-market buys worth $0 and 1 open-market sell worth $130k, the latest filed on Jun 17, 2026.

A track record needs three past buys with six months of prices behind them; Alexander J Buehler has 0, so none is measured yet.

The newest scored trade: sold $130k of ERII on Jun 15, 2026, filed Jun 17, 2026, scored 26 (weak). In the last 12 months: 0 buys worth $0 and 1 sell worth $130k.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 1
$0 bought, $130k sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

ERII: Energy Recovery, Inc.

ERIIOct 9, 2026 · close 6.84

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
26Weak
ERIIsell
Energy Recovery, Inc.
$130k
14,900 shares
-18%+11% from low-52% from high

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
Jun 15, 2026 ERII
Energy Recovery, Inc.
14,900
0.03% of outstanding
$132kJun 15, 2026none

Transactions

Every row this insider has filed, 5 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Jun 15, 2026ERII
Energy Recovery, Inc.
MOption exercise
Common Stock
+15,327$8.60$132k81,655Jun 17, 2026
Jun 15, 2026ERII
Energy Recovery, Inc.
SOpen-market sale
Common Stock
-14,900$8.71$130k66,755Jun 17, 2026
Jun 15, 2026ERII
Energy Recovery, Inc.
MOption exercise
Stock Option (Right to Buy)derivative
-15,327$8.60$132k0Jun 17, 2026
Jun 5, 2025ERII
Energy Recovery, Inc.
AGrant or award
Common Stock
+12,038$0.00$066,328Jun 6, 2025
Jan 7, 2025LIQT
LIQTECH INTERNATIONAL INC
AGrant or award
Common Stock
+53,030$0.00$0467,623Jan 13, 2025

Questions about Alexander J Buehler

Answered from the filings on this page, as of the latest one.

Is Alexander J Buehler buying or selling?

In the last 12 months Alexander J Buehler reported 0 open-market buys worth $0 and 1 open-market sell worth $130k on SEC Form 4; the latest was sold $130k of ERII on Jun 15, 2026. Grants, option exercises and tax withholding are not counted.

How did Alexander J Buehler's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Alexander J Buehler has 0.

Where does Alexander J Buehler file Form 4?

Alexander J Buehler has filed Form 4 at ERII (Energy Recovery, Inc.) as Interim President and CEO; LIQT (LIQTECH INTERNATIONAL INC). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

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.

Alexander J Buehler: insider trades and track record | InsiderTell