RHUMBLINE ADVISERS

Position in ERII — Energy Recovery, Inc.

CIK 1115418 BOSTON, MA

Position in ERII

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$656,735

-$316,204 QoQ

Shares Held

65,217

-9.6% QoQ

Ownership

0.127%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 20.28918840179708.ToString("F0")% Shared 0.ToString("F0")% None 79.71081159820292.ToString("F0")%

Industrials · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $64,007,218 across 6 Pollution & Treatment Controls names. ERII ranks #5 (1.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VLTO	Veralto Corp	479,157	$42,367,061
2	ZWS	Zurn Elkay Water Solutions Corp	398,369	$17,862,865
3	CECO	Ceco Environmental Corp	36,031	$2,146,726
4	PCT	PureCycle Technologies, Inc.	167,316	$868,370
5	ERII	Energy Recovery, Inc. This page	65,217	$656,735
6	ARQ	Arq, Inc.	41,196	$105,461

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$656,735	65,217	-9.6%	Shares	Sole	2026-05-12
2025-12-31	$972,939	72,123	-7.5%	Shares	Sole	2026-02-13
2025-09-30	$1,202,251	77,967	-2.8%	Shares	Sole	2025-11-06
2025-06-30	$1,024,994	80,203	-3.5%	Shares	Sole	2025-08-12
2025-03-31	$1,320,856	83,125	+7.5%	Shares	Sole	2025-05-29
2024-12-31	$1,136,956	77,344	-16.7%	Shares	Sole	2025-05-29
2024-09-30	$1,613,913	92,807	-2.9%	Shares	Sole	2024-11-12
2024-06-30	$1,269,979	95,559	+2.0%	Shares	Sole	2024-08-01
2024-03-31	$1,478,986	93,666	+6.3%	Shares	Sole	2024-05-09
2023-12-31	$1,660,011	88,111	-6.0%	Shares	Sole	2024-02-08
2023-09-30	$1,988,458	93,751	+9.2%	Shares	Sole	2023-11-09
2023-06-30	$2,398,920	85,829	+18.2%	Shares	Sole	2023-08-08
2023-03-31	$1,673,038	72,583	+1.8%	Shares	Sole	2023-05-11
2022-12-31	$1,461,059	71,306	+2.5%	Shares	Sole	2023-02-14
2022-09-30	$1,512,169	69,557	+7.9%	Shares	Sole	2022-11-10
2022-06-30	$1,251,541	64,446	+49.1%	Shares	Sole	2022-08-11
2022-03-31	$870,269	43,211	-1.4%	Shares	Sole	2022-05-12
2021-12-31	$941,885	43,829	-1.8%	Shares	Sole	2022-02-10
2021-09-30	$848,985	44,613	+4.4%	Shares	Sole	2021-11-12
2021-06-30	$973,617	42,740	-6.3%	Shares	Sole	2021-08-05
2021-03-31	$836,707	45,622	-9.3%	Shares	Sole	2021-05-06
2020-12-31	$686,255	50,312	+10.8%	Shares	Sole	2021-02-10
2020-09-30	$372,206	45,391	-11.0%	Shares	Sole	2020-11-12
2020-06-30	$387,645	51,006	+5.0%	Shares	Sole	2020-08-13
2020-03-31	$361,479	48,586	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.