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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•43 filings

ERII

Energy Recovery, Inc.

No net buying or selling imbalance over the last 3 months

No net buyers or sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

$0.00

0 buyers · 0 sellers

12-month purchases

$266,107

2 distinct insiders

12-month sales

$3,518,707

5 distinct insiders

Highlighted alerts

11

18 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

74
Raw transactions
Everything returned by the filing
29
Voluntary view
P/S trades after deterministic checks
45
Administrative noise
Stored, never alerted
39
10b5-1
Shown as informational
SEC ownership XML facts
Code
F
Shares
2,320
Price
$8.42
Footnotes
2

Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). These transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

Raspberry interpretation
Informational — no alert

Reason: administrative_code.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

29 transactions

Clemente Rodney

SVP, Water

Sale 10b5-1
Shares
5,387
Price
$8.56
Value
$46,113
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
2,048
Price
$8.56
Value
$17,531
Open SEC filing

Sabol Colin R

Director

PurchaseAlert
Shares
11,180
Price
$8.88
Value
$99,267
Open SEC filing

BUEHLER ALEXANDER J

Interim President and CEO

SaleAlert
Shares
14,900
Price
$8.71
Value
$129,779
Open SEC filing

TONDREAU PAMELA L.

Director

PurchaseAlert
Shares
20,000
Price
$8.34
Value
$166,840
Open SEC filing

Hanstveit Arve

Director

SaleAlert
Shares
2,419
Price
$10.29
Value
$24,892
Open SEC filing

Hanstveit Arve

Director

SaleAlert
Shares
165,292
Price
$10.14
Value
$1,676,061
Open SEC filing

Hanstveit Arve

Director

SaleAlert
Shares
25,000
Price
$10.96
Value
$273,975
Open SEC filing

Hanstveit Arve

Director

SaleAlert
Shares
11,582
Price
$10.62
Value
$122,943
Open SEC filing

Ramanan Natarajan

Chief Technology Officer

SaleAlert
Shares
272
Price
$10.57
Value
$2,875
Open SEC filing

Hanstveit Arve

Director

SaleAlert
Shares
38,418
Price
$10.71
Value
$411,457
Open SEC filing

Clemente Rodney

SVP, Water

Sale 10b5-1
Shares
20,568
Price
$10.61
Value
$218,309
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
646
Price
$15.14
Value
$9,780
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
890
Price
$14.59
Value
$12,985
Open SEC filing

Clemente Rodney

SVP, Water

Sale 10b5-1
Shares
724
Price
$14.59
Value
$10,563
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
729
Price
$14.46
Value
$10,541
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
7,271
Price
$14.55
Value
$105,793
Open SEC filing

Hanstveit Arve

Director

SaleAlert
Shares
15,000
Price
$14.71
Value
$220,605
Open SEC filing

Hanstveit Arve

Director

SaleAlert
Shares
15,000
Price
$14.97
Value
$224,505
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
3,530
Price
$18.00
Value
$63,540
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
5,638
Price
$18.00
Value
$101,484
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
3,530
Price
$17.50
Value
$61,775
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
3,530
Price
$17.00
Value
$60,010
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
3,530
Price
$16.50
Value
$58,245
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
2,529
Price
$16.00
Value
$40,464
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
1,038
Price
$16.00
Value
$16,608
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
15,454
Price
$15.09
Value
$233,139
Open SEC filing

Yeung William

Chief Legal Officer

Sale 10b5-1
Shares
33,554
Price
$14.51
Value
$486,869
Open SEC filing

Clemente Rodney

SVP, Water

Sale 10b5-1
Shares
5,387
Price
$13.97
Value
$75,256
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.