Arve Hanstveit

CIK: 0001430122

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)11 (84.6%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (15.4%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

ERII

Energy Recovery, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (13 total)

ERII
Energy Recovery, Inc.
Jun 4, 2026
Award(A)
Direct
18.1K shares at avg. $8.29$150K
ERII
Energy Recovery, Inc.
Apr 6, 2026
Sale(S)
Direct
2.4K shares at avg. $10.29$25K
ERII
Energy Recovery, Inc.
Apr 2, 2026
Sale(S)
Direct
165.3K shares at avg. $10.14$1.7M
ERII
Energy Recovery, Inc.
Mar 10, 2026
Sale(S)
Direct
25K shares at avg. $10.96$274K
ERII
Energy Recovery, Inc.
Mar 6, 2026
Sale(S)
Direct
11.6K shares at avg. $10.62$123K
ERII
Energy Recovery, Inc.
Mar 5, 2026
Sale(S)
Direct
38.4K shares at avg. $10.71$411K
ERII
Energy Recovery, Inc.
Dec 5, 2025
Sale(S)
Direct
15K shares at avg. $14.71$221K
ERII
Energy Recovery, Inc.
Dec 4, 2025
Sale(S)
Direct
15K shares at avg. $14.97$225K
ERII
Energy Recovery, Inc.
Jun 12, 2025
Sale(S)
Direct
30K shares at avg. $12.68$380K
ERII
Energy Recovery, Inc.
Jun 11, 2025
Sale(S)
Direct
20K shares at avg. $12.75$255K
ERII
Energy Recovery, Inc.
Jun 5, 2025
Award(A)
Direct
12K shares-
ERII
Energy Recovery, Inc.
Mar 11, 2025
Sale(S)
Direct
50K shares at avg. $16.34$817K
ERII
Energy Recovery, Inc.
Dec 11, 2024
Sale(S)
Direct
20K shares at avg. $16.87$337K

		Type	Shares	Price		Ownership
Jun 4, 2026	ERII Energy Recovery, Inc.	Award(A)	18,094	$8.29	$149,999	Direct
Apr 6, 2026	ERII Energy Recovery, Inc.	Sale(S)	2,419	$10.29	$24,892	Direct
Apr 2, 2026	ERII Energy Recovery, Inc.	Sale(S)	165,292	$10.14	$1,676,061	Direct
Mar 10, 2026	ERII Energy Recovery, Inc.	Sale(S)	25,000	$10.96	$273,975	Direct
Mar 6, 2026	ERII Energy Recovery, Inc.	Sale(S)	11,582	$10.62	$122,943	Direct
Mar 5, 2026	ERII Energy Recovery, Inc.	Sale(S)	38,418	$10.71	$411,457	Direct
Dec 5, 2025	ERII Energy Recovery, Inc.	Sale(S)	15,000	$14.71	$220,605	Direct
Dec 4, 2025	ERII Energy Recovery, Inc.	Sale(S)	15,000	$14.97	$224,505	Direct
Jun 12, 2025	ERII Energy Recovery, Inc.	Sale(S)	30,000	$12.68	$380,400	Direct
Jun 11, 2025	ERII Energy Recovery, Inc.	Sale(S)	20,000	$12.75	$255,000	Direct
Jun 5, 2025	ERII Energy Recovery, Inc.	Award(A)	12,038	-	-	Direct
Mar 11, 2025	ERII Energy Recovery, Inc.	Sale(S)	50,000	$16.34	$816,950	Direct
Dec 11, 2024	ERII Energy Recovery, Inc.	Sale(S)	20,000	$16.87	$337,400	Direct

1-13 of 13 transactions

About Hanstveit Arve

Hanstveit Arve (SEC CIK 0001430122) files insider reports with the SEC as Director of Energy Recovery, Inc. (ERII).

Signal8 holds 10 ownership filings by Hanstveit Arve, all Form 4s, filed between Dec 17, 2024 and Jun 5, 2026. Those filings report 13 transactions, from Dec 11, 2024 to Jun 4, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Hanstveit Arve's filings is in SAN LEANDRO, CA.

Recent filings by Hanstveit Arve

Jun 4, 2026: Grant or award of ERII shares (Form 4, code A).
Apr 6, 2026: Open-market sale of ERII shares (Form 4, code S).
Apr 2, 2026: Open-market sale of ERII shares (Form 4, code S).
Mar 10, 2026: Open-market sale of ERII shares (Form 4, code S).
Mar 6, 2026: Open-market sale of ERII shares (Form 4, code S).

Other insiders filing for Energy Recovery, Inc. (ERII)

Mitchell John Joseph, Director
Clemente Rodney, SVP, Water
Yeung William, Chief Legal Officer
Ryan Aidan, Interim CFO
Sabol Colin R, Director
BUEHLER ALEXANDER J, Interim President and CEO

How to read Form 4 transaction codes